CN106911365A - A kind of method and device of polarized antenna arrays channel correcting - Google Patents
A kind of method and device of polarized antenna arrays channel correcting Download PDFInfo
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- CN106911365A CN106911365A CN201510963842.1A CN201510963842A CN106911365A CN 106911365 A CN106911365 A CN 106911365A CN 201510963842 A CN201510963842 A CN 201510963842A CN 106911365 A CN106911365 A CN 106911365A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0408—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas using two or more beams, i.e. beam diversity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/11—Monitoring; Testing of transmitters for calibration
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
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- Electromagnetism (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The present invention provides a kind of method and device of polarized antenna arrays channel correcting, and wherein method includes：At least one poliarizing antenna is selected from first kind poliarizing antenna as the first reference antenna, other poliarizing antennas except the first reference antenna are corrected according to the first reference antenna, determine k-th first set of correction coefficients of subcarrier, k=1,2 ... Nc, k/Nc are subcarrier sequence number/number；Select at least one poliarizing antenna as the second reference antenna from Equations of The Second Kind poliarizing antenna, other poliarizing antennas except the second reference antenna are corrected according to the second reference antenna, determine k-th second set of correction coefficients of subcarrier；First reference antenna and the second reference antenna are corrected, the 3rd correction coefficient of kth subcarrier is determined；According to the first set of correction coefficients, the second set of correction coefficients and the 3rd correction coefficient, generation correction coefficient matrix corresponding with k-th subcarrier, and using correction coefficient matrix correction polarized antenna arrays passage.
Description
Technical field
The present invention relates to wireless communication field, more particularly to a kind of method of polarized antenna arrays channel correcting
And device.
Background technology
In large-scale antenna array system, antenna calibration has consequence.The corresponding receipts of every antenna
Hair radio-frequency channel does not often possess symmetry, and (Time Division Duplex, the time-division is double to destroy TDD
Work) system, the reciprocity on upper and lower row of channels it is assumed that thus cannot simply from data feedback channel estimation in
Obtain down going channel status information, it is difficult to realize accurate downlink beamforming excipient.Usually introduce antenna school
Standard, measures the difference of each radio-frequency channel in advance, is pre-compensated in transmission signal, keeps each radio-frequency channel
It is transmitting-receiving uniformity.
The solution of prior art, is divided into two kinds：
A kind of to be to rely on extra hardware device, building coupling network carries out absolute calibration；Each is measured to penetrate
The frequency passage channel response of itself, obtains the calibration parameter for needing.
Another kind is, based on aerial signal transmitted in both directions, measures relative calibration parameter, is specifically divided into 2 again
Class：A (), the passage calibration based on UE (User Equipment, user equipment) auxiliary, that is, select one
Individual UE is corrected for accessory channel, and the sound of each antenna rf passage that its measurement is obtained is fed back using the UE
Parameter is answered, base station or access point calculate calibration parameter using the parameter of feedback；B (), is not required to UE auxiliary
Passage calibration, that is, do not need UE participate in, only in base station end, selection a piece reference antenna (be probably volume
Outer antenna), signal transmitting and receiving is carried out in the reference antenna and mutually between the antenna of school, test the duplex channel
Response, calculates correction parameter.
It is, due to depending on specific hardware device, to bring peace for the problem that the first solution is present
Dress and the inconvenience of debugging, and for big spacing antenna (such as zooming out antenna or spaced antenna), build school
Positive real-time performance difficulty is larger.In addition, for extensive antenna system, extra corrective network number,
As antenna scale increases, the cost of whole system certainly will be increased；For (a) in second solution
The problem that scheme is present is the method for the response parameter for depending on each radio-frequency channel of user feedback, is limited to
The signal handling capacity of user side, under extensive antenna, uses still underaction.
B () scheme is compared to the first and the scheme of second (b) for, only carried out in base station side two-way
Signal is interacted, with certain feasibility.It is contemplated that the number of antennas in extensive antenna system is larger,
And realistic space is limited, it is difficult to dispose enough number of antennas.Therefore built by the way of poliarizing antenna
Aerial array, configures 2 kinds of differences on each RRU (Remote Radio Unit far-end RF modules)
The antenna of polarization mode, shares an aerial position, in the case where antenna spacing is constant, same antenna number
The area that mesh takes can reduce half.Therefore, channel correcting is carried out using the scheme of second of (b),
Due to the presence of polarization isolation, in the correction parameter that the scheme of (b) using second is obtained, there is one
Half parameter, is influenceed by polarization isolation, causes calibration result undesirable.
The content of the invention
The purpose of the embodiment of the present invention is to provide a kind of method and device of polarized antenna arrays channel correcting,
To solve, due to being influenceed by polarization isolation, to cause calibration result to be paid no attention to and think over a problem.
To achieve these goals, the method that the embodiment of the present invention provides polarized antenna arrays channel correcting, institute
Stating polarized antenna arrays includes：First kind poliarizing antenna with the polarization mode of identical first and with identical
The second polarization mode Equations of The Second Kind poliarizing antenna, methods described includes：
At least one poliarizing antenna is selected from the first kind poliarizing antenna as the first reference antenna, according to
First reference antenna is corrected to other poliarizing antennas in addition to first reference antenna, it is determined that
K-th first set of correction coefficients of subcarrier, k be subcarrier sequence number, k=1,2 ..., Nc, wherein,
Nc is subcarrier number；
At least one poliarizing antenna is selected from the Equations of The Second Kind poliarizing antenna as the second reference antenna, according to
Second reference antenna is corrected to other poliarizing antennas in addition to second reference antenna, it is determined that
K-th second set of correction coefficients of subcarrier；
First reference antenna and second reference antenna are corrected, the of kth subcarrier is determined
Three correction coefficient；
It is raw according to first set of correction coefficients, second set of correction coefficients and the 3rd correction coefficient
Into correction coefficient matrix corresponding with k-th subcarrier, and polarized using the correction coefficient matrix for obtaining
The correction of aerial array passage.
Further, poliarizing antenna T is selected from the first kind poliarizing antenna1As the described first reference
Antenna, wherein, with poliarizing antenna T1Other poliarizing antennas of common RRU are designated as Ti, wherein, i=3,5 ...,
2n-1, n are the positive integer more than 2；
It is sequentially completed the poliarizing antenna T1With poliarizing antenna TiSignal interaction, respectively obtain calibration signal
Y1,i(k) and calibration signal Yi,1(k), wherein, the calibration signal Y1,iK () is poliarizing antenna TiReceive by
Poliarizing antenna T1The calibration signal set in advance for sending, the calibration signal Yi,1K () is poliarizing antenna T1
Receive by poliarizing antenna TiThe calibration signal set in advance for sending；
According to the calibration signal Y1,i(k) and the calibration signal Yi,1K (), determines k-th the first of subcarrier
Set of correction coefficients.
Further, it is described that at least one poliarizing antenna is selected from the Equations of The Second Kind poliarizing antenna as second
Reference antenna, according to second reference antenna to other poliarizing antennas in addition to second reference antenna
It is corrected, determines k-th second set of correction coefficients of subcarrier, including：
Poliarizing antenna T is selected from the Equations of The Second Kind poliarizing antenna2As second reference antenna, wherein,
With poliarizing antenna T2Other poliarizing antennas of common RRU are designated as Tj, wherein, j=4,6 ..., 2n, n are
Positive integer more than or equal to 2；
It is sequentially completed the poliarizing antenna T2With poliarizing antenna TjSignal interaction, respectively obtain calibration signal
Y2,j(k) and calibration signal Yj,2(k), wherein, the calibration signal Y2,jK () is poliarizing antenna TjReceive
By poliarizing antenna T2The calibration signal set in advance for sending, the calibration signal Yj,2K () is poliarizing antenna
T2Receive by poliarizing antenna TjThe calibration signal set in advance for sending；
According to the calibration signal Y2,j(k) and the calibration signal Yj,2K (), determines k-th the of subcarrier
Two set of correction coefficients.
Further, it is described that first reference antenna and second reference antenna are corrected, it is determined that
3rd correction coefficient of kth subcarrier, including：
Obtain the second reference antenna and receive correction signal Y1,2(k) and obtain what the first reference antenna was received
Correction signal Y2,1(k), wherein, correction signal Y1,2(k) be by the second reference antenna directly receive by first
The calibration signal set in advance that reference antenna sends, the correction signal Y2,1K () is by the first reference antenna
The calibration signal set in advance sent by the second reference antenna for directly receiving；
According to the correction signal Y1,2(k) and the correction signal Y2,1K (), determines the 3rd of kth subcarrier
Correction coefficient.
Further, it is described that first reference antenna and second reference antenna are corrected, it is determined that
3rd correction coefficient of kth subcarrier, including：
Obtain the second reference antenna and receive correction signal Y1,2(k) and obtain what the first reference antenna was received
Correction signal Y2,1(k), wherein, correction signal Y1,2K () is the receiving RF channel by the second reference antenna through coupling
Close the calibration signal set in advance sent by the first reference antenna that corrective network is received, the correction signal
Y2,1K () is to be joined by second by what the coupled corrective network of receiving RF channel of the first reference antenna was received
Examine the calibration signal set in advance of antenna transmission；
According to the correction signal Y1,2(k) and the correction signal Y2,1K (), determines the 3rd of kth subcarrier
Correction coefficient.
The embodiment of the present invention also provides a kind of device of polarized antenna arrays channel correcting, the poliarizing antenna battle array
Row include：First kind poliarizing antenna with the polarization mode of identical first and with the side of polarization of identical second
The Equations of The Second Kind poliarizing antenna of formula, wherein, described device includes：
First choice determining module, for selecting at least one poliarizing antenna from the first kind poliarizing antenna
As the first reference antenna, according to first reference antenna to other in addition to first reference antenna
Poliarizing antenna is corrected, and determines k-th first set of correction coefficients of subcarrier, and k is subcarrier sequence number,
K=1,2 ..., Nc, wherein, Nc is subcarrier number；
Second selection determining module, for selecting at least one poliarizing antenna from the Equations of The Second Kind poliarizing antenna
As the second reference antenna, according to second reference antenna to other in addition to second reference antenna
Poliarizing antenna is corrected, and determines k-th second set of correction coefficients of subcarrier；
Determining module, for being corrected to first reference antenna and second reference antenna, it is determined that
3rd correction coefficient of kth subcarrier；
Generation correction module, for according to first set of correction coefficients, second set of correction coefficients and institute
State the 3rd correction coefficient, generation correction coefficient matrix corresponding with k-th subcarrier, and the school that utilization is obtained
Positive coefficient matrix carries out the correction of polarized antenna arrays passage.
Further, the first choice determining module includes：
First choice unit, for selecting poliarizing antenna T from the first kind poliarizing antenna1As described
First reference antenna, wherein, with poliarizing antenna T1Other poliarizing antennas of common RRU are designated as Ti, wherein,
I=3,5 ..., 2n-1, n are the positive integer more than 2；
First obtains unit, for being sequentially completed the poliarizing antenna T1With poliarizing antenna TiSignal interaction,
Respectively obtain calibration signal Y1,i(k) and calibration signal Yi,1(k), wherein, the calibration signal Y1,iK () is polarization
Antenna TiReceive by poliarizing antenna T1The calibration signal set in advance for sending, the calibration signal
Yi,1K () is poliarizing antenna T1Receive by poliarizing antenna TiThe calibration signal set in advance for sending；
First determining unit, for according to the calibration signal Y1,i(k) and the calibration signal Yi,1(k), it is determined that
K-th first set of correction coefficients of subcarrier.
Further, the second selection determining module includes：
Second select unit, for selecting poliarizing antenna T from the Equations of The Second Kind poliarizing antenna2As described
Second reference antenna, wherein, with poliarizing antenna T2Other poliarizing antennas of common RRU are designated as Tj, wherein,
J=4,6 ..., 2n, n are the positive integer more than or equal to 2；
Second obtains unit, for being sequentially completed the poliarizing antenna T2With poliarizing antenna TjSignal interaction,
Respectively obtain calibration signal Y2,j(k) and calibration signal Yj,2(k), wherein, the calibration signal Y2,jK () is pole
Change antenna TjReceive by poliarizing antenna T2The calibration signal set in advance for sending, the calibration signal
Yj,2K () is poliarizing antenna T2Receive by poliarizing antenna TjThe calibration signal set in advance for sending；
Second determining unit, for according to the calibration signal Y2,j(k) and the calibration signal Yj,2(k), really
Fixed k-th second set of correction coefficients of subcarrier.
Further, the determining module includes：
First acquisition unit, correction signal Y is received for obtaining the second reference antenna1,2(k) and acquisition first
The correction signal Y that reference antenna is received2,1(k), wherein, correction signal Y1,2K () is straight by the second reference antenna
The calibration signal set in advance sent by the first reference antenna for receiving, the correction signal Y2,1(k)
It is the calibration signal set in advance sent by the second reference antenna directly received by the first reference antenna；
3rd determining unit, for according to the correction signal Y1,2(k) and the correction signal Y2,1(k), really
Determine the 3rd correction coefficient of kth subcarrier.
Further, the determining unit includes：
Second acquisition unit, correction signal Y is received for obtaining the second reference antenna1,2(k) and acquisition first
The correction signal Y that reference antenna is received2,1(k), wherein, correction signal Y1,2K () is by the second reference antenna
The calibration set in advance sent by the first reference antenna that the coupled corrective network of receiving RF channel is received
Signal, the correction signal Y2,1K () is by the coupled corrective network of receiving RF channel of the first reference antenna
The calibration signal set in advance sent by the second reference antenna for receiving；
4th determining unit, for according to the correction signal Y1,2(k) and the correction signal Y2,1(k), really
Determine the 3rd correction coefficient of kth subcarrier.
The above-mentioned technical proposal of the embodiment of the present invention has the beneficial effect that：
In the scheme of the embodiment of the present invention, the first reference antenna is selected from first kind poliarizing antenna, carry out it
The correction of his poliarizing antenna, then selects the second reference antenna from Equations of The Second Kind poliarizing antenna, carries out other poles
Change the correction of antenna, subsequently mutually correct the first reference antenna and the second reference antenna, it is determined that correction system
Matrix number, and the correction of polarized antenna arrays passage is carried out using the correction coefficient matrix for obtaining, it is ensured that school
Plus effect, to realize the channel correcting of polarized antenna arrays；And because the first reference antenna and second is referred to
Antenna mutually polarizes, and is influenceed smaller by polarization isolation, improves calibration result.
Brief description of the drawings
Fig. 1 shows for the basic procedure of the method for the polarized antenna arrays channel correcting of first embodiment of the invention
It is intended to；
Fig. 2 is the structural representation of the polarized antenna arrays passage of first embodiment of the invention；
Fig. 3 shows for the idiographic flow of the method for the polarized antenna arrays channel correcting of second embodiment of the invention
It is intended to；
Fig. 4 is 16 pairs of schematic diagrames of polarized antenna arrays passage of second embodiment of the invention；
Fig. 5 is the structural representation of the device of the polarized antenna arrays channel correcting of third embodiment of the invention.
Specific embodiment
To make the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and
Specific embodiment is described in detail.
First embodiment
As shown in figure 1, the method for the polarized antenna arrays channel correcting of the embodiment of the present invention, the polarization day
Linear array includes：First kind poliarizing antenna with the polarization mode of identical first and with the pole of identical second
The Equations of The Second Kind poliarizing antenna of change mode, wherein, methods described includes：
Step 101, selects at least one poliarizing antenna as the first reference from the first kind poliarizing antenna
Other poliarizing antennas in addition to first reference antenna are carried out by antenna according to first reference antenna
Correction, determines k-th first set of correction coefficients of subcarrier, and k is subcarrier sequence number, k=1,2 ...,
Nc, wherein, Nc is subcarrier number.
The polarization mode of first kind poliarizing antenna here is different from the polarization mode of Equations of The Second Kind poliarizing antenna, the
One reference antenna mutually polarizes with the second reference antenna.The step is selected preferably from first kind poliarizing antenna
One of poliarizing antenna can so reduce the selection of multiple reference antennas as the first reference antenna,
Simplify the complexity of correction.
Step 102, selects at least one poliarizing antenna as the second reference from the Equations of The Second Kind poliarizing antenna
Other poliarizing antennas in addition to second reference antenna are carried out by antenna according to second reference antenna
Correction, determines k-th second set of correction coefficients of subcarrier.
Step 103, is corrected to first reference antenna and second reference antenna, determines kth
3rd correction coefficient of subcarrier.
Step 104, according to first set of correction coefficients, second set of correction coefficients and the 3rd school
Positive coefficient, generation correction coefficient matrix corresponding with k-th subcarrier, and the correction coefficient square that utilization is obtained
Battle array carries out the correction of polarized antenna arrays passage.
In the embodiment of the present invention, the first reference antenna is selected from first kind poliarizing antenna, carry out other polarization
The correction of antenna, then selects the second reference antenna from Equations of The Second Kind poliarizing antenna, carries out other poliarizing antennas
Correction, subsequently the first reference antenna and the second reference antenna are mutually corrected, determine correction coefficient matrix,
And the correction of polarized antenna arrays passage is carried out using the correction coefficient matrix for obtaining, it is ensured that calibration result,
To realize the channel correcting of polarized antenna arrays；And because the first reference antenna is mutual with the second reference antenna
Polarization, is influenceed smaller by polarization isolation, improves calibration result.
In the method for the polarized antenna arrays channel correcting of the embodiment of the present invention, by the first kind poliarizing antenna
In poliarizing antenna be labeled as poliarizing antenna Ti, wherein i=1,3,5 ... 2n-1；By the first kind
Poliarizing antenna in poliarizing antenna is labeled as poliarizing antenna Tj, wherein j=2,4,6,8 ..., 2n, its
Described in poliarizing antenna TiWith the poliarizing antenna TjIt is the poliarizing antenna on same RRU, n is just whole
Number.
It should be noted that：Each RRU uses poliarizing antenna, it may also be said to be at least 2 on each RRU
The mutual poliarizing antenna of root (i.e. first kind poliarizing antenna and Equations of The Second Kind poliarizing antenna), multiple RRU constitute antenna
Array, the step 101 includes：
Step 1011, selects poliarizing antenna T from the first kind poliarizing antenna1As the described first reference
Antenna, wherein, with poliarizing antenna T1Other poliarizing antennas of common RRU are designated as Ti, wherein, i=3,5 ...,
2n-1, n are the positive integer more than 2.This step is preferably chosen poliarizing antenna T1Day is referred to as first
Line, the only preferred embodiment of the invention, other poliarizing antennas TiAs the first reference antenna reality
Existing method is identical with the implementation of the inventive method, other poliarizing antennas TiBelong to implementation of the present invention
The protection domain of example.
Step 1012, is sequentially completed the poliarizing antenna T1With poliarizing antenna TiSignal interaction, respectively
To calibration signal Y1,i(k) and calibration signal Yi,1(k), wherein, the calibration signal Y1,iK () is poliarizing antenna Ti
Receive by poliarizing antenna T1The calibration signal set in advance for sending, the calibration signal Yi,1K () is pole
Change antenna T1Receive by poliarizing antenna TiThe calibration signal set in advance for sending.
Wherein above-mentioned poliarizing antenna TiReceive by poliarizing antenna T1The calibration signal set in advance for sending
Including：In the first preset time instant, by the poliarizing antenna T1Send calibration signal Y1,3K () gives polarization day
Line T3, and by the poliarizing antenna T3Receive the calibration signal Y1,3(k).Here calibration signal is obtained
Y1,3When (k), with poliarizing antenna T1The poliarizing antenna T that common RRU mutually polarizes2, it is impossible to sending signal, with
Exempt from the reception of interference calibration signal.
Above-mentioned poliarizing antenna TiReceive by poliarizing antenna TiThe calibration signal set in advance for sending includes：
In the adjacent moment of first preset time instant, by the poliarizing antenna T3For the calibration signal
Y1,3K () sends and returns to the poliarizing antenna T1Calibration signal Y3,1(k).Obtaining calibration signal Y3,1(k),
With poliarizing antenna T3The poliarizing antenna T that common RRU mutually polarizes4, it is impossible to sending signal, in order to avoid interference calibration
The reception of signal.
Above-mentioned first preset time instant is in order to avoid occurring polarizing with the adjacent moment of above-mentioned first preset time instant
Antenna T1To poliarizing antenna T3, poliarizing antenna T1To poliarizing antenna T3Corrected time difference it is more, make
Must eat dishes without rice or wine to be mutated the problem that influence is corrected, improve the accuracy rate of correction.
Step 1013, according to calibration signal Y1,i(k) and calibration signal Yi,1K (), determines k-th the of subcarrier
One set of correction coefficients.
Wherein, calibration signal Y1,i(k) and calibration signal Yi,1K () is the kth subcarrier for carrying base band
The amplitude and phase of passage.And calibration signal Y1,i(k) and the calibration signal Yi,1K the length of () is 1
OFDM (Orthogonal Frequency Division Multiplexing, orthogonal frequency division multiplexi) symbol,
The number of sub carrier wave of occupancy is identical with the subcarrier data length of transmission services.
In the embodiment of the present invention, school is carried out to other poliarizing antennas of same polarization mode by the first reference antenna
Just, for the calibration of channel reciprocity, rather than transmitting path calibration or receiving path calibration, so can be with
The setting of additional hardware is reduced, so as to reduce cost of labor and hardware cost.
In the method for the polarized antenna arrays channel correcting of the embodiment of the present invention, the step 102 includes：
Step 1021, selects poliarizing antenna T from the Equations of The Second Kind poliarizing antenna2As the described second reference
Antenna, wherein, with poliarizing antenna T2Other poliarizing antennas of common RRU are designated as Tj, wherein, j=4,6 ...,
2n, n are the positive integer more than or equal to 2.This step is preferably chosen poliarizing antenna T2Day is referred to as second
Line, the only preferred embodiment of the invention, other poliarizing antennas TjRealized as the second reference antenna
Method is identical with the implementation of the inventive method, other poliarizing antennas TjBelong to the embodiment of the present invention
Protection domain.
Step 1022, is sequentially completed the poliarizing antenna T2With poliarizing antenna TjSignal interaction, respectively
To calibration signal Y2,j(k) and calibration signal Yj,2(k), wherein, the calibration signal Y2,jK () is poliarizing antenna
TjReceive by poliarizing antenna T2The calibration signal set in advance for sending, the calibration signal Yj,2K () is
Poliarizing antenna T2Receive by poliarizing antenna TjThe calibration signal set in advance for sending.
Above-mentioned poliarizing antenna TjReceive by poliarizing antenna T2The calibration signal set in advance for sending includes：
In the second preset time instant, by the poliarizing antenna T2Send calibration signal Y2,4K () gives poliarizing antenna T4,
And by the poliarizing antenna T4Receive the calibration signal Y2,4(k).Obtaining calibration signal Y2,4When (k),
With poliarizing antenna T2The poliarizing antenna T that common RRU mutually polarizes1, it is impossible to sending signal, in order to avoid interference calibration
The reception of signal.
Above-mentioned poliarizing antenna T2Receive by poliarizing antenna TjThe calibration signal set in advance for sending includes：
In the adjacent moment of second preset time instant, by the poliarizing antenna T4For the calibration signal
Y2,4K () sends and returns to the poliarizing antenna T2Calibration signal Y4,2(k).Obtaining calibration signal Y4,2(k)
When, with poliarizing antenna T4The poliarizing antenna T that common RRU mutually polarizes3, it is impossible to sending signal, in order to avoid interference
The reception of calibration signal.
It can further be stated that：Here the second preset time instant and the adjacent moment of the second preset time instant be in order to
Avoid the occurrence of poliarizing antenna T2To poliarizing antenna T4, poliarizing antenna T4To poliarizing antenna T2Corrected time
Difference is more so that the problem of mutation influence correction of eating dishes without rice or wine, and improves the accuracy rate of correction.
Step 1023, according to the calibration signal Y2,j(k) and the calibration signal Yj,2K (), determines k-th
Second set of correction coefficients of subcarrier.
Wherein, calibration signal Y2,j(k) and calibration signal Yj,2K () is the kth son load for carrying base band
The amplitude and phase of ripple passage.And calibration signal Y2,j(k) and the calibration signal Yj,2K the length of () is 1
Individual OFDM (Orthogonal Frequency Division Multiplexing, orthogonal frequency division multiplexi)
Symbol, the number of sub carrier wave of occupancy is identical with the subcarrier data length of transmission services.
In the embodiment of the present invention, school is carried out to other poliarizing antennas of same polarization mode by the second reference antenna
Just, it is directed to the calibration of channel reciprocity, rather than transmitting path calibration or receiving path calibration, so may be used
To reduce the setting of additional hardware, so as to reduce cost of labor and hardware cost.
In the method for the polarized antenna arrays channel correcting of the embodiment of the present invention, the step 103 includes：
Step 1031, obtains the second reference antenna and receives correction signal Y1,2(k) and obtain the first reference antenna
The correction signal Y for receiving2,1(k), wherein, correction signal Y1,2K () is to be directly received by the second reference antenna
By the first reference antenna send calibration signal set in advance, the correction signal Y2,1K () is by first
The calibration signal set in advance sent by the second reference antenna that reference antenna is directly received.
The above-mentioned school set in advance sent by the first reference antenna directly received by the second reference antenna
Calibration signal includes：In the 3rd preset time instant, calibration signal Y is sent by first reference antenna1,2K () gives
Second reference antenna, and the calibration signal Y is received by second reference antenna1,2(k)。
The above-mentioned school set in advance sent by the second reference antenna directly received by the first reference antenna
Calibration signal includes：In the adjacent preset time instant of the 3rd preset time instant, by the second reference antenna pin
To the calibration signal Y1,2K () sends and returns to calibration signal Y2,1(k), and connect by first reference antenna
Receive the calibration signal Y2,1(k), wherein, the calibration signal Y1,2(k) and the calibration signal Y2,1(k) difference
Carry the amplitude and phase of the kth subcarrier passage of base band.
It should be noted that：Here the 3rd preset time instant and the adjacent moment of the 3rd preset time instant is to keep away
Exempt from poliarizing antenna T occur1To poliarizing antenna T2, poliarizing antenna T2To poliarizing antenna T1Corrected time phase
Difference is more so that the problem of mutation influence correction of eating dishes without rice or wine, and improves the accuracy rate of correction.
As shown in Fig. 2 the first reference antenna 1 and the common RRU of the second reference antenna 2, are imitated by polarization isolation
Fruit is not obvious, therefore meets the requirement of correction.Specifically, the first reference antenna 1 and the second reference antenna 2
It is cross one another poliarizing antenna, is sent to other poliarizing antennas by the transmission channel of the first reference antenna 1
Calibration signal, it is also possible to which other calibration signals are received by the receiving channel of the first reference antenna 1.And pass through
The transmission channel of the second reference antenna 2 sends calibration signal to other poliarizing antennas, it is also possible to by the second reference
The receiving channel of antenna 2 receives other calibration signals.
Further, the first reference antenna and the cross one another poliarizing antenna of the second reference antenna, due to intersecting,
It is closer to the distance, so polarization isolation DeGrain is received, to meet the requirement of correction.
Step 1032, according to the correction signal Y1,2(k) and the correction signal Y2,1K (), determines kth
3rd correction coefficient of carrier wave.
In the embodiment of the present invention, due to the first reference antenna for selecting and the cross one another pole of the second reference antenna
Change antenna, by polarization isolation DeGrain, by the first reference antenna and the second reference antenna both it
Between be corrected, improve the efficiency of correction.
In the method for the polarized antenna arrays channel correcting of the embodiment of the present invention, the step 103 includes：
Step 1034, obtains the second reference antenna and receives correction signal Y1,2(k) and obtain the first reference antenna
The correction signal Y for receiving2,1(k), wherein, correction signal Y1,2K () is by the reception radio frequency of the second reference antenna
The calibration signal set in advance sent by the first reference antenna that the coupled corrective network of passage is received, it is described
Correction signal Y2,1K () is to be received by the coupled corrective network of receiving RF channel of the first reference antenna
The calibration signal set in advance sent by the second reference antenna.
What the coupled corrective network of the above-mentioned receiving RF channel by the second reference antenna was received is referred to by first
The calibration signal set in advance that antenna sends includes：In the 4th preset time instant, day is referred to by described first
The coupled corrective network transmission calibration signal Y of line1,2K () gives the receiving RF channel of second reference antenna,
And the receiving RF channel by second reference antenna receives the calibration signal Y1,2(k)。
What the coupled corrective network of the above-mentioned receiving RF channel by the first reference antenna was received is joined by second
The calibration signal set in advance for examining antenna transmission includes：In the adjacent preset time instant of the 4th preset time instant,
The calibration signal Y is directed to by second reference antenna1,2K (), returns through the coupling corrective network transmission
Back to the calibration signal Y of the first reference antenna receiving RF channel2,1(k), and referred to by described first
The receiving RF channel of antenna receives the calibration signal Y2,1(k)。
It should be noted that：Here the 4th preset time instant and the adjacent moment of the 4th preset time instant is to keep away
Exempt from poliarizing antenna T occur1To poliarizing antenna T2, poliarizing antenna T2To poliarizing antenna T1Corrected time phase
Difference is more so that the problem of mutation influence correction of eating dishes without rice or wine, and improves the accuracy rate of correction.
Here the first reference antenna and the cross one another poliarizing antenna of the second reference antenna, due to intersecting,
It is closer to the distance, so polarization isolation DeGrain is received, to meet the requirement of correction.
Step 1035, according to the correction signal Y1,2(k) and the correction signal Y2,1K (), determines kth
3rd correction coefficient of carrier wave.
Above-mentioned matrix is：Wherein,
In the embodiment of the present invention, corrected by the coupling of first reference antenna and the second reference antenna of RRU
Network, carries out the correction between reference antenna, to realize that the TDD channel reciprocities on subcarrier are corrected.
Second embodiment
As shown in figure 3, the process that implements of the polarized antenna arrays channel correcting of the embodiment of the present invention is illustrated
It is as follows.The schematic diagram of 16 polarized antenna arrays passages is given with reference to the figure and with reference to Fig. 4, wherein,
Antenna i and i+1 are the antenna of the mutual polarization of common RRU.Whole correcting process is as follows：
Step 301, selection poliarizing antenna T1As the first reference antenna, selection poliarizing antenna T2As
Two reference antennas.
Step 302, realizes the first reference antenna T1And TiSignal interaction, obtain Y1,i(k) and Yi,1(k),
Wherein, i=3,5 ... 15, determine k-th first set of correction coefficients of subcarrier；
Step 303, realizes the second reference antenna T2And TjSignal interaction, obtain Y2,j(k) and Yj,2(k),
Wherein, j=4,6 ... 16, determine k-th second set of correction coefficients of subcarrier；
Step 304, completes the 3rd of k-th subcarrier between the first reference antenna and the second reference antenna
Correction coefficient.
Step 305, calculates TDD channel reciprocity correction parameter matrixes, wherein square on k-th subcarrier
Battle array be：Wherein,
It should be noted that：It is follow-up just identical in prior art after correction parameter matrix, in signal hair
Before penetrating, sub-carrier signal is compensated, each signal is multiplied by the correction coefficient of matrix, realize correction.
In the embodiment of the present invention, the first reference antenna is selected from first kind poliarizing antenna, carry out other polarization
The correction of antenna, then selects the second reference antenna from Equations of The Second Kind poliarizing antenna, carries out other poliarizing antennas
Correction, subsequently the first reference antenna and the second reference antenna are mutually corrected, determine correction coefficient matrix,
And the correction of polarized antenna arrays passage is carried out using the correction coefficient matrix for obtaining, it is ensured that calibration result,
To realize the channel correcting of polarized antenna arrays；And because the first reference antenna is mutual with the second reference antenna
Polarization, is influenceed smaller by polarization isolation, improves calibration result.
3rd embodiment
As shown in figure 5, the device of the polarized antenna arrays channel correcting of the embodiment of the present invention, the polarization day
Linear array includes：First kind poliarizing antenna with the polarization mode of identical first and with the pole of identical second
The Equations of The Second Kind poliarizing antenna of change mode, described device includes：
First choice determining module 501, polarizes for the selection at least one from the first kind poliarizing antenna
Antenna as the first reference antenna, according to first reference antenna in addition to first reference antenna
Other poliarizing antennas are corrected, and determine k-th first set of correction coefficients of subcarrier, and k is subcarrier sequence
Number, k=1,2 ..., Nc, wherein, Nc is subcarrier number；
The polarization mode of first kind poliarizing antenna here is different from the polarization mode of Equations of The Second Kind poliarizing antenna, the
One reference antenna mutually polarizes with the second reference antenna.The step is selected preferably from first kind poliarizing antenna
One of poliarizing antenna can so reduce the selection of multiple reference antennas as the first reference antenna,
Simplify the complexity of correction.
Second selection determining module 502, polarizes for the selection at least one from the Equations of The Second Kind poliarizing antenna
Antenna as the second reference antenna, according to second reference antenna in addition to second reference antenna
Other poliarizing antennas are corrected, and determine k-th second set of correction coefficients of subcarrier；
Determining module 503, for being corrected to first reference antenna and second reference antenna,
Determine the 3rd correction coefficient of kth subcarrier；
Generation correction module 504, for according to first set of correction coefficients, second set of correction coefficients
And the 3rd correction coefficient, generation correction coefficient matrix corresponding with k-th subcarrier, and utilization are obtained
Correction coefficient matrix carry out the correction of polarized antenna arrays passage.
In the embodiment of the present invention, the first reference antenna is selected from first kind poliarizing antenna, carry out other polarization
The correction of antenna, then selects the second reference antenna from Equations of The Second Kind poliarizing antenna, carries out other poliarizing antennas
Correction, subsequently the first reference antenna and the second reference antenna are mutually corrected, determine correction coefficient matrix,
And the correction of polarized antenna arrays passage is carried out using the correction coefficient matrix for obtaining, it is ensured that calibration result,
To realize the channel correcting of polarized antenna arrays；And because the first reference antenna is mutual with the second reference antenna
Polarization, is influenceed smaller by polarization isolation, improves calibration result.
It should be noted that the device that the present invention is provided is using the method for polarized antenna arrays channel correcting
Device, then all embodiments of the method for above-mentioned polarized antenna arrays channel correcting be applied to the device, and
Same or analogous beneficial effect can be reached.
In the device of the polarized antenna arrays channel correcting of further embodiment of this invention, the first choice determines
Module includes：
First choice unit, for selecting poliarizing antenna T from the first kind poliarizing antenna1As described
First reference antenna, wherein, with poliarizing antenna T1Other poliarizing antennas of common RRU are designated as Ti, wherein,
I=3,5 ..., 2n-1, n are the positive integer more than 2；
First obtains unit, for being sequentially completed the poliarizing antenna T1With poliarizing antenna TiSignal interaction,
Respectively obtain calibration signal Y1,i(k) and calibration signal Yi,1(k), wherein, the calibration signal Y1,iK () is polarization
Antenna TiReceive by poliarizing antenna T1The calibration signal set in advance for sending, the calibration signal
Yi,1K () is poliarizing antenna T1Receive by poliarizing antenna TiThe calibration signal set in advance for sending；
First determining unit, for according to the calibration signal Y1,i(k) and the calibration signal Yi,1(k), it is determined that
K-th first set of correction coefficients of subcarrier.
In the device of the polarized antenna arrays channel correcting of further embodiment of this invention, second selection determines
Module includes：
Second select unit, for selecting poliarizing antenna T from the Equations of The Second Kind poliarizing antenna2As described
Second reference antenna, wherein, with poliarizing antenna T2Other poliarizing antennas of common RRU are designated as Tj, wherein,
J=4,6 ..., 2n, n are the positive integer more than or equal to 2；
Second obtains unit, for being sequentially completed the poliarizing antenna T2With poliarizing antenna TjSignal interaction,
Respectively obtain calibration signal Y2,j(k) and calibration signal Yj,2(k), wherein, the calibration signal Y2,jK () is pole
Change antenna TjReceive by poliarizing antenna T2The calibration signal set in advance for sending, the calibration signal
Yj,2K () is poliarizing antenna T2Receive by poliarizing antenna TjThe calibration signal set in advance for sending；
Second determining unit, for according to the calibration signal Y2,j(k) and the calibration signal Yj,2(k), really
Fixed k-th second set of correction coefficients of subcarrier.
In the device of the polarized antenna arrays channel correcting of further embodiment of this invention, the determining module includes：
First acquisition unit, correction signal Y is received for obtaining the second reference antenna1,2(k) and acquisition first
The correction signal Y that reference antenna is received2,1(k), wherein, correction signal Y1,2K () is straight by the second reference antenna
The calibration signal set in advance sent by the first reference antenna for receiving, the correction signal Y2,1(k)
It is the calibration signal set in advance sent by the second reference antenna directly received by the first reference antenna；
3rd determining unit, for according to the correction signal Y1,2(k) and the correction signal Y2,1(k), really
Determine the 3rd correction coefficient of kth subcarrier.
In the device of the polarized antenna arrays channel correcting of further embodiment of this invention, the determining unit includes：
Second acquisition unit, correction signal Y is received for obtaining the second reference antenna1,2(k) and acquisition first
The correction signal Y that reference antenna is received2,1(k), wherein, correction signal Y1,2K () is by the second reference antenna
The calibration set in advance sent by the first reference antenna that the coupled corrective network of receiving RF channel is received
Signal, the correction signal Y2,1K () is by the coupled corrective network of receiving RF channel of the first reference antenna
The calibration signal set in advance sent by the second reference antenna for receiving；
4th determining unit, for according to the correction signal Y1,2(k) and the correction signal Y2,1(k), really
Determine the 3rd correction coefficient of kth subcarrier.
The device of above-mentioned polarized antenna arrays channel correcting is applied to base station, therefore, the embodiment of the present invention is also carried
A kind of base station has been supplied, wherein, the described of the device of above-mentioned polarized antenna arrays channel correcting realizes that embodiment is equal
Suitable for the embodiment of the base station, identical technique effect can be also reached.
The above is the preferred embodiment of the present invention, it is noted that for the common skill of the art
For art personnel, on the premise of principle of the present invention is not departed from, some improvements and modifications can also be made,
These improvements and modifications also should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of method of polarized antenna arrays channel correcting, the polarized antenna arrays include：With phase
The first kind poliarizing antenna of the first same polarization mode and the Equations of The Second Kind pole with the polarization mode of identical second
Change antenna, it is characterised in that methods described includes：
At least one poliarizing antenna is selected from the first kind poliarizing antenna as the first reference antenna, according to
First reference antenna is corrected to other poliarizing antennas in addition to first reference antenna, it is determined that
K-th first set of correction coefficients of subcarrier, k be subcarrier sequence number, k=1,2 ..., Nc, wherein,
Nc is subcarrier number；
At least one poliarizing antenna is selected from the Equations of The Second Kind poliarizing antenna as the second reference antenna, according to
Second reference antenna is corrected to other poliarizing antennas in addition to second reference antenna, it is determined that
K-th second set of correction coefficients of subcarrier；
First reference antenna and second reference antenna are corrected, the of kth subcarrier is determined
Three correction coefficient；
It is raw according to first set of correction coefficients, second set of correction coefficients and the 3rd correction coefficient
Into correction coefficient matrix corresponding with k-th subcarrier, and polarized using the correction coefficient matrix for obtaining
The correction of aerial array passage.
2. the method for polarized antenna arrays channel correcting as claimed in claim 1, it is characterised in that institute
State and at least one poliarizing antenna is selected from the first kind poliarizing antenna as the first reference antenna, according to institute
State the first reference antenna to be corrected other poliarizing antennas in addition to first reference antenna, determine
K the first set of correction coefficients of subcarrier, including：
Poliarizing antenna T is selected from the first kind poliarizing antenna1As first reference antenna, wherein,
With poliarizing antenna T1Other poliarizing antennas of common RRU are designated as Ti, wherein, i=3,5 ..., 2n-1, n
It is the positive integer more than 2；
It is sequentially completed the poliarizing antenna T1With poliarizing antenna TiSignal interaction, respectively obtain calibration signal
Y1,i(k) and calibration signal Yi,1(k), wherein, the calibration signal Y1,iK () is poliarizing antenna TiReceive by
Poliarizing antenna T1The calibration signal set in advance for sending, the calibration signal Yi,1K () is poliarizing antenna T1
Receive by poliarizing antenna TiThe calibration signal set in advance for sending；
According to the calibration signal Y1,i(k) and the calibration signal Yi,1K (), determines k-th the first of subcarrier
Set of correction coefficients.
3. the method for polarized antenna arrays channel correcting as claimed in claim 2, it is characterised in that institute
State and at least one poliarizing antenna is selected from the Equations of The Second Kind poliarizing antenna as the second reference antenna, according to institute
State the second reference antenna to be corrected other poliarizing antennas in addition to second reference antenna, determine
K the second set of correction coefficients of subcarrier, including：
Poliarizing antenna T is selected from the Equations of The Second Kind poliarizing antenna2As second reference antenna, wherein,
With poliarizing antenna T2Other poliarizing antennas of common RRU are designated as Tj, wherein, j=4,6 ..., 2n, n are
Positive integer more than or equal to 2；
It is sequentially completed the poliarizing antenna T2With poliarizing antenna TjSignal interaction, respectively obtain calibration signal
Y2,j(k) and calibration signal Yj,2(k), wherein, the calibration signal Y2,jK () is poliarizing antenna TjReceive
By poliarizing antenna T2The calibration signal set in advance for sending, the calibration signal Yj,2K () is poliarizing antenna
T2Receive by poliarizing antenna TjThe calibration signal set in advance for sending；
According to the calibration signal Y2,j(k) and the calibration signal Yj,2K (), determines k-th the of subcarrier
Two set of correction coefficients.
4. the method for polarized antenna arrays channel correcting as claimed in claim 3, it is characterised in that institute
State and first reference antenna and second reference antenna are corrected, determine the 3rd of kth subcarrier
Correction coefficient, including：
Obtain the second reference antenna and receive correction signal Y1,2(k) and obtain what the first reference antenna was received
Correction signal Y2,1(k), wherein, correction signal Y1,2(k) be by the second reference antenna directly receive by first
The calibration signal set in advance that reference antenna sends, the correction signal Y2,1K () is by the first reference antenna
The calibration signal set in advance sent by the second reference antenna for directly receiving；
According to the correction signal Y1,2(k) and the correction signal Y2,1K (), determines the 3rd of kth subcarrier
Correction coefficient.
5. the method for polarized antenna arrays channel correcting as claimed in claim 3, it is characterised in that institute
State and first reference antenna and second reference antenna are corrected, determine the 3rd of kth subcarrier
Correction coefficient, including：
Obtain the second reference antenna and receive correction signal Y1,2(k) and obtain what the first reference antenna was received
Correction signal Y2,1(k), wherein, correction signal Y1,2K () is the receiving RF channel by the second reference antenna through coupling
Close the calibration signal set in advance sent by the first reference antenna that corrective network is received, the correction signal
Y2,1K () is to be joined by second by what the coupled corrective network of receiving RF channel of the first reference antenna was received
Examine the calibration signal set in advance of antenna transmission；
According to the correction signal Y1,2(k) and the correction signal Y2,1K (), determines the 3rd of kth subcarrier
Correction coefficient.
6. a kind of device of polarized antenna arrays channel correcting, the polarized antenna arrays include：With phase
The first kind poliarizing antenna of the first same polarization mode and the Equations of The Second Kind pole with the polarization mode of identical second
Change antenna, it is characterised in that described device includes：
First choice determining module, for selecting at least one poliarizing antenna from the first kind poliarizing antenna
As the first reference antenna, according to first reference antenna to other in addition to first reference antenna
Poliarizing antenna is corrected, and determines k-th first set of correction coefficients of subcarrier, and k is subcarrier sequence number,
K=1,2 ..., Nc, wherein, Nc is subcarrier number；
Second selection determining module, for selecting at least one poliarizing antenna from the Equations of The Second Kind poliarizing antenna
As the second reference antenna, according to second reference antenna to other in addition to second reference antenna
Poliarizing antenna is corrected, and determines k-th second set of correction coefficients of subcarrier；
Determining module, for being corrected to first reference antenna and second reference antenna, it is determined that
3rd correction coefficient of kth subcarrier；
Generation correction module, for according to first set of correction coefficients, second set of correction coefficients and institute
State the 3rd correction coefficient, generation correction coefficient matrix corresponding with k-th subcarrier, and the school that utilization is obtained
Positive coefficient matrix carries out the correction of polarized antenna arrays passage.
7. the device of polarized antenna arrays channel correcting as claimed in claim 6, it is characterised in that institute
Stating first choice determining module includes：
First choice unit, for selecting poliarizing antenna T from the first kind poliarizing antenna1As described
First reference antenna, wherein, with poliarizing antenna T1Other poliarizing antennas of common RRU are designated as Ti, wherein,
I=3,5 ..., 2n-1, n are the positive integer more than 2；
First obtains unit, for being sequentially completed the poliarizing antenna T1With poliarizing antenna TiSignal interaction,
Respectively obtain calibration signal Y1,i(k) and calibration signal Yi,1(k), wherein, the calibration signal Y1,iK () is polarization
Antenna TiReceive by poliarizing antenna T1The calibration signal set in advance for sending, the calibration signal
Yi,1K () is poliarizing antenna T1Receive by poliarizing antenna TiThe calibration signal set in advance for sending；
First determining unit, for according to the calibration signal Y1,i(k) and the calibration signal Yi,1(k), it is determined that
K-th first set of correction coefficients of subcarrier.
8. the device of polarized antenna arrays channel correcting as claimed in claim 7, it is characterised in that institute
Stating the second selection determining module includes：
Second select unit, for selecting poliarizing antenna T from the Equations of The Second Kind poliarizing antenna2As described
Second reference antenna, wherein, with poliarizing antenna T2Other poliarizing antennas of common RRU are designated as Tj, wherein,
J=4,6 ..., 2n, n are the positive integer more than or equal to 2；
Second obtains unit, for being sequentially completed the poliarizing antenna T2With poliarizing antenna TjSignal interaction,
Respectively obtain calibration signal Y2,j(k) and calibration signal Yj,2(k), wherein, the calibration signal Y2,jK () is pole
Change antenna TjReceive by poliarizing antenna T2The calibration signal set in advance for sending, the calibration signal
Yj,2K () is poliarizing antenna T2Receive by poliarizing antenna TjThe calibration signal set in advance for sending；
Second determining unit, for according to the calibration signal Y2,j(k) and the calibration signal Yj,2(k), really
Fixed k-th second set of correction coefficients of subcarrier.
9. the device of polarized antenna arrays channel correcting as claimed in claim 8, it is characterised in that institute
Stating determining module includes：
First acquisition unit, correction signal Y is received for obtaining the second reference antenna1,2(k) and acquisition first
The correction signal Y that reference antenna is received2,1(k), wherein, correction signal Y1,2K () is straight by the second reference antenna
The calibration signal set in advance sent by the first reference antenna for receiving, the correction signal Y2,1(k)
It is the calibration signal set in advance sent by the second reference antenna directly received by the first reference antenna；
3rd determining unit, for according to the correction signal Y1,2(k) and the correction signal Y2,1(k), really
Determine the 3rd correction coefficient of kth subcarrier.
10. the device of polarized antenna arrays channel correcting as claimed in claim 8, it is characterised in that institute
Stating determining unit includes：
Second acquisition unit, correction signal Y is received for obtaining the second reference antenna1,2(k) and acquisition first
The correction signal Y that reference antenna is received2,1(k), wherein, correction signal Y1,2K () is by the second reference antenna
The calibration set in advance sent by the first reference antenna that the coupled corrective network of receiving RF channel is received
Signal, the correction signal Y2,1K () is by the coupled corrective network of receiving RF channel of the first reference antenna
The calibration signal set in advance sent by the second reference antenna for receiving；
4th determining unit, for according to the correction signal Y1,2(k) and the correction signal Y2,1(k), really
Determine the 3rd correction coefficient of kth subcarrier.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112825492A (en) * | 2019-11-21 | 2021-05-21 | 中国移动通信有限公司研究院 | Visible light communication method, device and storage medium |
| CN114041268A (en) * | 2019-06-28 | 2022-02-11 | 华为技术有限公司 | Transmission channel calibration device and wireless communication equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101635391A (en) * | 2008-07-24 | 2010-01-27 | 中兴通讯股份有限公司 | Antenna array supporting MIMO and intelligent antenna technology |
| CN101674140A (en) * | 2008-09-08 | 2010-03-17 | 大唐移动通信设备有限公司 | Method and device for calibrating antennae |
| US7915942B2 (en) * | 2009-08-20 | 2011-03-29 | City University Of Hong Kong | Apparatus and method for calibrating a variable phase shifter |
| US8258996B2 (en) * | 2007-05-08 | 2012-09-04 | The Johns Hopkins University | Synthetic aperture radar hybrid-quadrature-polarity method and architecture for obtaining the stokes parameters of radar backscatter |
| CN102780522A (en) * | 2011-05-12 | 2012-11-14 | 中国移动通信集团设计院有限公司 | Antenna array as well as communication system and communication method based on antenna array |
-
2015
- 2015-12-21 CN CN201510963842.1A patent/CN106911365B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8258996B2 (en) * | 2007-05-08 | 2012-09-04 | The Johns Hopkins University | Synthetic aperture radar hybrid-quadrature-polarity method and architecture for obtaining the stokes parameters of radar backscatter |
| CN101635391A (en) * | 2008-07-24 | 2010-01-27 | 中兴通讯股份有限公司 | Antenna array supporting MIMO and intelligent antenna technology |
| CN101674140A (en) * | 2008-09-08 | 2010-03-17 | 大唐移动通信设备有限公司 | Method and device for calibrating antennae |
| US7915942B2 (en) * | 2009-08-20 | 2011-03-29 | City University Of Hong Kong | Apparatus and method for calibrating a variable phase shifter |
| CN102780522A (en) * | 2011-05-12 | 2012-11-14 | 中国移动通信集团设计院有限公司 | Antenna array as well as communication system and communication method based on antenna array |
Non-Patent Citations (1)
| Title |
|---|
| 张锐戈: "极化阵列参数估计及误差校正", 《西安电子科技大学硕士学位论文》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114041268A (en) * | 2019-06-28 | 2022-02-11 | 华为技术有限公司 | Transmission channel calibration device and wireless communication equipment |
| CN114041268B (en) * | 2019-06-28 | 2023-06-27 | 华为技术有限公司 | Transmission channel calibration device and wireless communication equipment |
| US11784727B2 (en) | 2019-06-28 | 2023-10-10 | Huawei Technologies Co., Ltd. | Transmission channel calibration apparatus and wireless communications device |
| CN112825492A (en) * | 2019-11-21 | 2021-05-21 | 中国移动通信有限公司研究院 | Visible light communication method, device and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106911365B (en) | 2020-08-28 |
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