CN105703815B - Based on equalization methods, equalizing equipment and the corresponding system under closed-loop diversity transmitting mode - Google Patents
Based on equalization methods, equalizing equipment and the corresponding system under closed-loop diversity transmitting mode Download PDFInfo
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Abstract
The embodiment of the invention discloses a kind of equalization methods, equalizing equipment and corresponding system based under closed-loop diversity transmitting mode, this method include：According to and data sending terminal in based on the corresponding first Channel cyclical matrix of first antenna under closed-loop diversity transmitting mode, on data sending terminal in based between the corresponding second channel circular matrix of the second antenna under closed-loop diversity transmitting mode, the second antenna and first antenna phase difference and data receiver received data it is vectorial, based on spatial reuse balanced device, generated interference carries out equilibrium treatment when to carrying out data transmission between data sending terminal and data receiver, and the data vector transmitted by data sending terminal is obtained with estimation.The embodiment of the present invention, which can be eliminated, is configured to other physical channels that open loop sends diversity mode, to being configured to interfere caused by the physical channel of closed-loop diversity transmitting mode.
Description
Technical field
The present embodiments relate to field of communication technology more particularly to a kind of equilibriums based under closed-loop diversity transmitting mode
Method, balanced device and corresponding system.
Background technology
In WCDMA/HSDPA (Wideband Code Division Multiple Access/High Speed
Downlink Packet Access, wideband code division multiple access/high-speed slender body theory) in system, in order to keep orthogonality, respectively
It uses different orthogonal codes between physical channel to be spread, to not interfere with each other.However, in wireless environments, due to by
The influences such as reflection, refraction, diffraction to barrier, there are multipath fadings for radio signal propagation, i.e.,：Transmitted by data sending terminal
Same wireless signal can reach data receiver, and the signal on each propagation path by the propagation path of a plurality of different delay
Amplitude and phase time to time change.
It is to restrict receiver since the multipath effect in wireless signal transmission can destroy the orthogonality between each physical channel
One of principal element of demodulation performance is used for for this purpose, WCDMA/HSDPA systems often design a balanced device in data receiver
Interference caused by multipath effect is fought, such as：LMMSE (Linear Minimum Mean Square Error, it is linear minimum equal
Square error) balanced device.The basic principle of balanced device is that multipath channel is reconstructed, and eliminates the shadow for receiving multipath channel in signal
It rings, and then restores the orthogonality between each physical channel.
In addition, diversity technique is to tackle one of effective means of channel fading.Therefore, WCDMA/HSDPA systems are in addition to branch
Single antenna sending mode is held, also open loop is supported to send diversity mode and closed-loop diversity transmitting mode.Closed-loop diversity transmitting is index
Send identical data on two antennas according to transmitting terminal, data receiver by the phase difference feedback of two antennas to data sending terminal,
Data sending terminal adjusts the phase of two antenna transmission datas according to feedback result, makes it as far as possible with mutually transmission.
According to 3GPP (The 3rd Generation Partnership Project, 3G (Third Generation) Moblie partner meter
Draw) physical layer protocol regulation, as DPCH/HS-PDSCH (dedicated physical channel/high-speed physical downlink shared channel (HS-PDSCH), Dedicated
Physical Channel/High Speed Physical Downlink Shared Channel) it is configured to closed loop transmission point
When integrated mode, other physical channels can only be configured to open loop and send diversity mode.But it existing purchases on data receiver
Balanced device, can not eliminate simultaneously and be configured as open loop and send on the physical channel of diversity mode and closed-loop diversity transmitting mode
Multipath effect is configured as open loop and sends diversity mode so that the orthogonality between each physical channel receives destruction
Physical channel can interfere the demodulation for the physical channel for being configured as closed-loop diversity transmitting mode.
Invention content
The embodiment of the present invention provides a kind of equalization methods, equalizing equipment and corresponding system based under closed-loop diversity transmitting mode
System, when data receiver carries out transmission data demodulation, can eliminate and be configured to other physics that open loop sends diversity mode
Channel, to being configured to interfere caused by the physical channel of closed-loop diversity transmitting mode.
In a first aspect, an embodiment of the present invention provides a kind of equalization methods based under closed-loop diversity transmitting mode, the party
Method includes：
It obtains and is on data sending terminal based on corresponding first channel of first antenna under closed-loop diversity transmitting mode
Circular matrix, on data sending terminal in being recycled based on the corresponding second channel of the second antenna under closed-loop diversity transmitting mode
Phase difference between matrix, second antenna and the first antenna and data receiver received data vector；
According to the first Channel cyclical matrix, the second channel circular matrix, the phase difference, the data vector
And spatial reuse balanced device, it is produced when to carrying out data transmission between the data sending terminal and the data receiver
Interference carry out equilibrium treatment, with estimation obtain the data vector transmitted by data sending terminal.
Second aspect, the embodiment of the present invention additionally provide a kind of equalizing equipment based under closed-loop diversity transmitting mode, should
Equipment includes：
Parameter acquisition module is obtained and is in based on the first antenna pair under closed-loop diversity transmitting mode on data sending terminal
The first Channel cyclical matrix for answering, on data sending terminal in corresponding based on the second antenna under closed-loop diversity transmitting mode
What phase difference and data receiver between second channel circular matrix, second antenna and the first antenna were received
Data vector；
Balance processing module, for according to the first Channel cyclical matrix, the second channel circular matrix, the phase
Potential difference, the data vector and spatial reuse balanced device, between the data sending terminal and the data receiver into
Generated interference carries out equilibrium treatment when row data transmission, and the data vector transmitted by data sending terminal is obtained with estimation.
The third aspect, the embodiment of the present invention additionally provide a kind of data transmission system, which includes：Data sending terminal and
Data receiver；Wherein, the data sending terminal is carried out data transmission with the data receiver based on a plurality of physical channel；
Closed-loop diversity transmitting mode is used when carrying out data transmission based on a plurality of physical channel；Or
Closed-loop diversity transmitting is used when carrying out data transmission based on first part's channel in a plurality of physical channel
Pattern sends diversity mode when carrying out data transmission based on the second part channel in a plurality of physical channel using open loop
Under；
The data receiver includes equalizing equipment described above.
The embodiment of the present invention is based on spatial reuse balanced device, to carrying out data between data sending terminal and data receiver
Generated interference carries out equilibrium treatment when transmission, and then demodulates the data vector transmitted by data sending terminal.It is such good
Be in：A plurality of physical channel transmission is carried out in data receiver and data sending terminal, and some physical channels are configured as closing
Ring sends diversity mode, other physical channels are configured as under such a concrete application scene of open loop diversity sending mode,
It can be based on spatial reuse balanced device, while eliminating the physical channel being configured under open loop and closed loop diversity sending mode and being brought
Multi-path jamming, to demodulate transmission data, to solve be configured to open loop send diversity mode physical channel, to configuration
The problem of bringing interference for the physical channel of closed-loop diversity transmitting mode enhances the demodulation performance of receiver.
Description of the drawings
Fig. 1 is a kind of single antenna equalization methods signal based under closed-loop diversity transmitting mode provided in an embodiment of the present invention
Figure；
Fig. 2A is a kind of flow based on the equalization methods under closed-loop diversity transmitting mode that the embodiment of the present invention one provides
Schematic diagram；
Fig. 2 B are the equalization methods schematic diagrames in the first preferred embodiment that the embodiment of the present invention one provides；
Fig. 2 C are the equalization methods schematic diagrames in second of preferred embodiment that the embodiment of the present invention one provides；
Fig. 3 is the schematic diagram for carrying out equilibrium based on spatial reuse balanced device to STTD that the embodiment of the present invention one provides；
Fig. 4 is a kind of equalizing equipment based under closed-loop diversity transmitting mode provided by Embodiment 2 of the present invention.
Specific implementation mode
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limitation of the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
Currently, in the case where carrying out data transmission under based on closed-loop diversity transmitting mode, data sending terminal is to be based on two
Root antenna carrys out transmission data, the data that first antenna in two antennas and the second antenna are sent be it is identical, first day
There are phase differences for line and the second antenna, therefore the data mathematical formulae that receiving terminal receives can indicate as follows：
R=h1d+h2ωd+η
Wherein, data receiver received data vector r=[r (0), r (1) ..., r (2N-1)]T；Data sending terminal
It is based respectively on data vector d=that first antenna and the second antenna send [d (0), d (1) ..., d (N-1)]T；Noise vector η=
[η(0),η(1),…,η(2N-1)]T。
The corresponding first Channel cyclical matrix h of first antenna1Second channel circular matrix h corresponding with the second antenna2Respectively
It is as follows：
N is the data length for entering balanced device every time, and L is the diameter number of multipath channel.Due to two transmission antenna (first antennas
With the second antenna) phase difference ω remained unchanged in a time slot, and the primary balanced data taken are less than one time slot
The chip chips of 1/5th time slots (be, for example), therefore ω is a scalar.
Since the transmission data of two antennas is identical, formula r=h1d+h2ω d+ η can be write as again
R=(h1+h2ω)d+η
That is, the data based on closed-loop diversity transmitting mode send the data transmission that can be equivalent to based on single antenna,
I.e.：By h1+h2ω is considered as a Channel cyclical matrix, and d is considered as to the data vector transmitted by data sending terminal.Therefore, closed loop is sent out
Send diversity that can carry out equilibrium in the way of single antenna.
As shown in Figure 1, based on the equalization methods under closed-loop diversity transmitting mode, include the following steps：
1, phase difference ω is multiplied by second channel circular matrix h2, obtain ω h2；
2, by ω h2In addition the first Channel cyclical matrix h1, obtain h1+h2ω；
3, by h1+h2ω and data receiver received data vector r are sent into single antenna balanced device, obtain LMMSE estimations
ValueThe balanced formula of single antenna is
Wherein, σ2For the variance of white Gaussian noise, I is unit vector.
It can be seen that for " based on a plurality of physical channel progress data biography between data sending terminal and data receiver
When defeated, a part of channel therein is configured as closed-loop diversity transmitting mode, and another part channel is configured as open loop transmission point
Such a specific condition of integrated mode ", if still a single antenna balanced device is designed in data receiver, although can eliminate
The multi-path jamming on physical channel under closed-loop diversity transmitting mode, but the object under open loop transmission diversity mode can not be eliminated
Manage the multi-path jamming on channel.For this purpose, the embodiment of the present invention provides a kind of equalization scheme based under closed-loop diversity transmitting mode,
So that under above-mentioned specific condition, can design a kind of equalizing equipment can eliminate simultaneously based on two kinds of transmission diversity modes
Under physical channel on multi-path jamming.
Embodiment one
Fig. 2A is a kind of flow based on the equalization methods under closed-loop diversity transmitting mode that the embodiment of the present invention one provides
Schematic diagram.This method is applicable to the Transmission system being made of data sending terminal and data receiver, in the system transmitting terminal with
Receiving terminal can be carried out data transmission based on a plurality of physical channel, and the data transmission modes of a portion physical channel are configured as
Closed-loop diversity transmitting mode, and the data transmission modes of other a part of physical channels are configured as open loop and send diversity mode,
Or the data transmission modes of whole physical channels are both configured to closed-loop diversity transmitting mode.The equalization methods can be by base
Equalizing equipment realization under closed-loop diversity transmitting mode, the data receiver which can be purchased in Transmission system, by soft
Part and/or hardware realization.
Particularly, the equalization methods provided in this embodiment based under closed-loop diversity transmitting mode be particularly well suited to it is following this
A kind of specific application scenarios of sample：When DPCH/HS-PDSCH in Transmission system is configured as closed-loop diversity transmitting mode, other
Physical channel is both configured to open loop and sends diversity mode, and it includes TSTD (Time Switched that open loop, which sends diversity mode,
Transmit Diversity, time-switching send diversity) and STTD (Space Time Transmit Diversity, when empty
Send diversity).Wherein, TSTD is only available for SCH (Synchronization Channel, synchronizing channel).In this application scenarios
Under, the channel applied based on the equalization methods under closed-loop diversity transmitting mode is DPCH/HS-PDSCH.Referring to Fig. 2A, the party
Method specifically includes following operation：
Operation 210 obtains and is in corresponding based on the first antenna under closed-loop diversity transmitting mode on data sending terminal
First Channel cyclical matrix is in on data sending terminal based on the second antenna corresponding second under closed-loop diversity transmitting mode
Phase difference ω between Channel cyclical matrix, the second antenna and first antenna and data receiver received data vector.
Operate 220, according to the first Channel cyclical matrix, second channel circular matrix, phase difference, data vector and space
It is multiplexed balanced device, when to carrying out data transmission between data sending terminal and data receiver at generated interference progress equilibrium
Reason obtains the data vector transmitted by data sending terminal with estimation.
In the present embodiment, data sending terminal can be base station, and data receiver can be such as desktop computer, tablet electricity
The terminal of brain, smart mobile phone or the like.Transmitting terminal can use two antennas to carry out data under based on closed-loop diversity transmitting mode
It sends, data are transmitted to receiving terminal after two antennas are sent by physical channel.
Under closed-loop diversity transmitting mode, data receiver received data can be calculated with following formula：
R=h1d+h2ωd+η
In the present embodiment, the data vector received by data receiver can be obtained from the receiving module of data receiver
R=[r (0), r (1) ..., r (2N-1)]T.First Channel cyclical matrix h1, second channel circular matrix h2, phase difference ω and
Noise variance can be obtained by arbitrarily determining method in the prior art, and the present embodiment is not construed as limiting this.
In the first specific implementation mode of the present embodiment, above-mentioned formula r=h1d+h2ω d+ η can be written to：
R=h1d+(h2ω)d+η
Therefore closed-loop diversity transmitting can be equivalent to a kind of spatial reuse transmission, i.e.,：By h1It is considered as first antenna corresponding
One Channel cyclical matrix, by h2ω is considered as the corresponding second channel circular matrix of the second antenna, by h1D in d is considered as based on first
The data vector that antenna is sent, by h2D in ω d is considered as the transmission signal of the second antenna.Therefore, closed-loop diversity transmitting can be by sky
Between the mode that is multiplexed carry out equilibrium, as shown in Figure 2 B.
Referring to Fig. 2 B, under the first above-mentioned specific implementation mode, operation 220 specifically includes：
To phase difference ω and second channel circular matrix h2Multiplication operations are carried out, new second channel circular matrix h is obtained2ω；
By the first Channel cyclical matrix h1, new second channel circular matrix h2ω and data receiver received data
Vectorial r is input to spatial reuse balanced device as the input parameter of spatial reuse balanced device；
Obtain the first transmission data vector that spatial reuse balanced device is estimated according to input parameterIt is sent with second
Data vectorAnd to the first transmission data vectorWith the second transmission data vectorIt merges, to obtain data transmission
The transmitted data vector in end
Preferably, to the first transmission data vectorWith the second transmission data vectorIt merges, can be specially：
Certainly, other merging modes also can be used to obtainSuch as to the first transmission data vectorWith the second transmission data
VectorIt is weighted, wherein the initial value of weighting coefficient can determine at random, be then based on a large amount of test result and add to correct
Weight coefficient, or also can be by being manually directly rule of thumb set as a fixed value.
Correspondingly, under the first specific implementation mode, the balanced formula of spatial reuse balanced device is：
Wherein, σ2For the variance of white Gaussian noise, I is unit vector.
Alternatively, in second of specific implementation mode of the present embodiment, above-mentioned formula r=h1d+h2(ω d)+η can also be write
At：
R=h1d+h2(ωd)+η
Therefore closed-loop diversity transmitting can be equivalent to another spatial reuse and sent, i.e.,：By h1It is corresponding to be considered as first antenna
First Channel cyclical matrix, by h2Regard the corresponding second channel circular matrix of second antenna as, d, which is considered as first antenna, to be sent
Data vector, by ω d be considered as the second antenna transmission data vector.Therefore, the side that closed-loop diversity transmitting can be spatially multiplexed
Formula carries out equilibrium, as shown in Figure 2 C.
Referring to Fig. 2 C, under above-mentioned second of specific implementation mode, operation 220 specifically includes：
By the first Channel cyclical matrix h1, second channel circular matrix h2And data receiver received data vector
R is input to spatial reuse balanced device as the input parameter of spatial reuse balanced device；
Obtain the first transmission data vector that spatial reuse balanced device is estimated according to input parameterIt is sent with second
Data vector
The second transmission data vector that estimation is obtainedDivided by phase difference ω, obtain new transmission data vector
To the first transmission data vectorWith new second transmission data vectorIt merges, to obtain data transmission
The transmitted data vector in end.
Wherein, merge the setting of mode, reference can be made to the first above-mentioned embodiment.Preferably, to the first transmission data to
AmountWith new transmission data vectorIt merges, can be specially：
Correspondingly, under second of specific implementation mode, the balanced formula of spatial reuse balanced device is：
Wherein, σ2For the variance of white Gaussian noise, I is unit vector.
For a kind of specific application scene as follows：DPCH/HS-PDSCH in Transmission system is configured as closed loop hair
When sending diversity mode, other physical channels are both configured to open loop and send diversity mode, and it includes TSTD that open loop, which sends diversity mode,
And STTD, the physical channel due to being configured as TSTD only accounts for 1/10th chips of a time slot, to being configured as closed loop
The demodulation influence for the transmission data transmitted on physical channel under diversity transmission pattern is limited, therefore, is mainly configured as
The physical channel of STTD can interfere the demodulation of the physical channel under closed loop diversity sending mode.
For STTD, sending method can indicate as follows：
In first symbol time unit, in based on sending number on first antenna under STTD on data sending terminal
According to s1, transmission data on second antennaThe transmission data s in second symbol time unit, first antenna2,
Transmission data on second antennas*It is expressed as the complex conjugate of s.If not considering the encoding relation of former and later two symbols, number
The data mathematical formulae received according to receiving terminal can indicate as follows：
R=h1d1+h2d2+η
Wherein, d1=[d1(0),d1(1),…,d1(N-1)]TFor the data vector that first antenna is sent, d2=[d2
(0),d2(1),…,d2(N-1)]TThe data vector sent for second antenna；h1For based on first antenna pair under STTD
The the first Channel cyclical matrix answered, based on the corresponding second channel circular matrix h of second antenna under STTD2, indicate shape
Formula can be found in corresponding Channel cyclical matrix under closed-loop diversity transmitting；η=[η (0), η (1) ..., η (2N-1)]TTo be based on STTD
Under noise vector.Therefore, the mode that STTD also can be spatially multiplexed carries out equilibrium, and equalization step is as shown in figure 3, specific packet
It includes：
1. by the corresponding Channel cyclical matrix h of first antenna1, second piece corresponding Channel cyclical matrix h of antenna2With connect
It receives data vector r and is sent into spatial reuse balanced device, obtainWithThe balanced formula of spatial reuse is
Wherein, σ2For the variance of white Gaussian noise, I is unit vector；
2, willWithIt is detached and is merged by parity character chronomere, obtain LMMSE estimated valuesIt enables
Equal gain combining can be used in merging, and maximum-ratio combing can also be used.If it is equal gain combining, then
If using maximum-ratio combing,
Wherein, SINR1For the data obtained after first via equilibriumSignal to Interference plus Noise Ratio, SINR2To be obtained after the second tunnel equilibrium
DataSignal to Interference plus Noise Ratio.
Referring to Fig. 2 B and Fig. 3, equalization methods under based on closed-loop diversity transmitting mode and diversity mould is sent based on open loop
In equalization methods under formula, spatial reuse balanced device can be used to carry out interference elimination, two methods are multiple for being sent into space
For the input parameter of balanced device, the only difference is that：It is sent into the Channel cyclical of second antenna of spatial reuse balanced device
Matrix is different, i.e., the former is h2ω, the latter are h2.Since the phase difference ω of two antennas is remained unchanged in a time slot, and one
Therefore the data that secondary equilibrium is taken, which are the chips of 1/5th time slots, will not impact equilibrium result.
Referring to Fig. 2 C and Fig. 3, equalization methods under based on closed-loop diversity transmitting mode and diversity mould is sent based on open loop
In equalization methods under formula, spatial reuse balanced device can be used to carry out interference elimination, two methods are multiple for being sent into space
It is identical with the input parameter of balanced device.
It can be seen that " when the DPCH/HS-PDSCH in Transmission system is configured as closed-loop diversity transmitting mode, other
Physical channel is both configured to open loop and sends diversity mode " under such a specific condition, it can purchase one in data receiver
Spatial reuse balanced device, and adjusted at corresponding balanced device input parameter and output merging for different data transmission modes
Reason, can eliminate the multi-path jamming on each physical channel, demodulate the data transmitted by data sending terminal, avoid other objects simultaneously
It manages channel (in addition to the limited influence of SCH) and interference is formed to the demodulation of DPCH/HS-PDSCH, and then improve DPCH/HS-PDSCH
Handling capacity.Therefore, closed-loop diversity transmitting system is spatially multiplexed balanced performance and is better than performance by single antenna equilibrium.
In conclusion the present embodiment is different from demodulates transmission end data using single antenna balanced device, but it is based on space
It is multiplexed balanced device, when to carrying out data transmission between data sending terminal and data receiver at generated interference progress equilibrium
Reason, and then demodulate the data vector transmitted by data sending terminal.It is such to be advantageous in that：It is sent in data receiver and data
End carries out a plurality of physical channel transmission, and some physical channels are configured as closed-loop diversity transmitting mode, other physical channels
It is configured as under such a concrete application scene of open loop diversity sending mode, spatial reuse balanced device can be based on, disappeared simultaneously
Except multi-path jamming caused by the physical channel being configured under open loop and closed loop diversity sending mode, to demodulate transmission data,
To solve other physical channels for being configured to open loop and sending diversity mode, to being configured to the physics of closed-loop diversity transmitting mode
Channel strip the problem of interference, enhances the demodulation performance of receiver.
Embodiment two
Fig. 4 is a kind of equalizing equipment based under closed-loop diversity transmitting mode provided by Embodiment 2 of the present invention.It is described equal
The data receiver that weighing apparatus equipment can be purchased in Transmission system.Wherein, Transmission system is by data sending terminal and data receiver group
At transmitting terminal can be carried out data transmission with receiving terminal based on a plurality of physical channel in the system, a portion physical channel
Data transmission modes are configured as closed-loop diversity transmitting mode, and the data transmission modes of other a part of physical channels are configured
Diversity mode is sent for open loop, or the data transmission modes of whole physical channels are both configured to closed-loop diversity transmitting mould
Formula.
Referring to Fig. 4, equalizing equipment provided in this embodiment, including：
Parameter acquisition module 410 is obtained and is in based on first day under closed-loop diversity transmitting mode on data sending terminal
The corresponding first Channel cyclical matrix of line is in on data sending terminal based on the second antenna pair under closed-loop diversity transmitting mode
Phase difference and data receiver between second channel circular matrix, second antenna and the first antenna answered are connect
The data vector of receipts；
Balance processing module 420, for according to the first Channel cyclical matrix, the second channel circular matrix, institute
State phase difference, the data vector and spatial reuse balanced device, to the data sending terminal and the data receiver it
Between when carrying out data transmission generated interference carry out equilibrium treatment, with estimation obtain the data transmitted by data sending terminal to
Amount.
In a kind of specific implementation mode of the present embodiment, the balance processing module 420 is specifically used for：
Multiplication operations are carried out to the phase difference and the second channel circular matrix, obtain new second channel Cyclic Moment
Battle array；
The first Channel cyclical matrix, the new second channel circular matrix and the data receiver are received
Data vector be input to spatial reuse balanced device as the input parameter of the spatial reuse balanced device；
Obtain the first transmission data vector sum that the spatial reuse balanced device is estimated according to the input parameter
Two transmission datas vector, and the second transmission data vector described in the first transmission data vector sum is merged, to obtain
Data vector transmitted by data sending terminal.
In another specific implementation mode of the present embodiment, the balance processing module 420 is specifically used for：
The first Channel cyclical matrix, the second channel circular matrix and the data receiver are received
Data vector is input to spatial reuse balanced device as the input parameter of the spatial reuse balanced device；
Obtain the first transmission data vector sum that the spatial reuse balanced device is estimated according to the input parameter
Two transmission datas vector；
The second transmission data vector that estimation is obtained divided by the phase difference obtain new transmission data vector；
New second transmission data vector described in the first transmission data vector sum is merged, to obtain data transmission
The transmitted data vector in end.
Executable any embodiment offer of the present invention of the said goods based on the equilibrium under closed-loop diversity transmitting mode, have
The corresponding function module of execution method and advantageous effect.The not technical detail of detailed description in the present embodiment, reference can be made to this hair
The method that bright any embodiment is provided.
Embodiment three
Based on the various embodiments described above, the present embodiment provides a kind of data transmission system, which includes：Data are sent
End and data receiver；Wherein, the data sending terminal is based on a plurality of physical channel with the data receiver and carries out data biography
It is defeated；
Closed-loop diversity transmitting mode is used when carrying out data transmission based on a plurality of physical channel；Or
Closed-loop diversity transmitting is used when carrying out data transmission based on first part's channel in a plurality of physical channel
Pattern sends diversity mode when carrying out data transmission based on the second part channel in a plurality of physical channel using open loop
Under；
The data receiver includes the equalizing equipment described in embodiment two.
Further, first part's physical channel is dedicated physical channel or high-speed physical downlink shared channel (HS-PDSCH).
Further, the second part physical channel includes：First physical channel and the second physical channel；
It is sent when sending the sky under diversity mode using open loop when carrying out data transmission based on first physical channel
Diversity technique；
The time-switching under diversity mode is sent using open loop when carrying out data transmission based on second physical channel
Send diversity technique.
Further, the data sending terminal is base station, and the data receiver is terminal.
Note that above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The present invention is not limited to specific embodiments described here, can carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out to the present invention by above example
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
May include other more equivalent embodiments, and the scope of the present invention is determined by scope of the appended claims.
Claims (6)
1. a kind of equalization methods based under closed-loop diversity transmitting mode, which is characterized in that including：
It obtains and is on data sending terminal based on corresponding first Channel cyclical of first antenna under closed-loop diversity transmitting mode
Matrix, on data sending terminal in based on the corresponding second channel Cyclic Moment of the second antenna under closed-loop diversity transmitting mode
Phase difference between battle array, second antenna and the first antenna and data receiver received data vector；
According to the first Channel cyclical matrix, the second channel circular matrix, the phase difference, the data vector and
Spatial reuse balanced device, it is generated dry when to carrying out data transmission between the data sending terminal and the data receiver
Carry out equilibrium treatment is disturbed, the data vector transmitted by data sending terminal is obtained with estimation；
Wherein, described according to the first Channel cyclical matrix, the second channel circular matrix, the phase difference, the number
According to vector and spatial reuse balanced device, when to carrying out data transmission between the data sending terminal and the data receiver
Generated interference carries out equilibrium treatment, and the data vector transmitted by data sending terminal is obtained with estimation, including：
Multiplication operations are carried out to the phase difference and the second channel circular matrix, obtain new second channel circular matrix；
The number that the first Channel cyclical matrix, the new second channel circular matrix and the data receiver are received
According to vector spatial reuse balanced device is input to as the input parameter of the spatial reuse balanced device；
The spatial reuse balanced device is obtained to be sent out according to the first transmission data vector sum second that the input parameter is estimated
Data vector is sent, and the second transmission data vector described in the first transmission data vector sum is merged, to obtain data
Data vector transmitted by transmitting terminal；
Or,
By the first Channel cyclical matrix, the second channel circular matrix and the data receiver received data
Vector is input to spatial reuse balanced device as the input parameter of the spatial reuse balanced device；
The spatial reuse balanced device is obtained to be sent out according to the first transmission data vector sum second that the input parameter is estimated
Send data vector；
The second transmission data vector that estimation is obtained divided by the phase difference obtain new transmission data vector；
New second transmission data vector described in the first transmission data vector sum is merged, to obtain data sending terminal institute
The data vector of transmission.
2. a kind of equalizing equipment based under closed-loop diversity transmitting mode, which is characterized in that including：
Parameter acquisition module obtains and is in corresponding based on the first antenna under closed-loop diversity transmitting mode on data sending terminal
First Channel cyclical matrix is in on data sending terminal based on the second antenna corresponding second under closed-loop diversity transmitting mode
Phase difference between Channel cyclical matrix, second antenna and the first antenna and data receiver received data
Vector；
Balance processing module, for according to the first Channel cyclical matrix, the second channel circular matrix, the phase
Poor, the described data vector and spatial reuse balanced device, to being carried out between the data sending terminal and the data receiver
Generated interference carries out equilibrium treatment when data transmission, and the data vector transmitted by data sending terminal is obtained with estimation；
Wherein, the balance processing module, is specifically used for：
Multiplication operations are carried out to the phase difference and the second channel circular matrix, obtain new second channel circular matrix；
The number that the first Channel cyclical matrix, the new second channel circular matrix and the data receiver are received
According to vector spatial reuse balanced device is input to as the input parameter of the spatial reuse balanced device；
The spatial reuse balanced device is obtained to be sent out according to the first transmission data vector sum second that the input parameter is estimated
Data vector is sent, and the second transmission data vector described in the first transmission data vector sum is merged, to obtain data
Data vector transmitted by transmitting terminal；
Or,
By the first Channel cyclical matrix, the second channel circular matrix and the data receiver received data
Vector is input to spatial reuse balanced device as the input parameter of the spatial reuse balanced device；
The spatial reuse balanced device is obtained to be sent out according to the first transmission data vector sum second that the input parameter is estimated
Send data vector；
The second transmission data vector that estimation is obtained divided by the phase difference obtain new transmission data vector；
New second transmission data vector described in the first transmission data vector sum is merged, to obtain data sending terminal institute
The data vector of transmission.
3. a kind of data transmission system, which is characterized in that including：Data sending terminal and data receiver；Wherein, the data hair
Sending end is carried out data transmission with the data receiver based on a plurality of physical channel；
Closed-loop diversity transmitting mode is used when carrying out data transmission based on a plurality of physical channel；Or
Closed-loop diversity transmitting mode is used when carrying out data transmission based on first part's channel in a plurality of physical channel,
It is sent under diversity mode using open loop when being carried out data transmission based on the second part channel in a plurality of physical channel；
The data receiver includes equalizing equipment as claimed in claim 2.
4. a kind of data transmission system according to claim 3, which is characterized in that first part's physical channel is special
With physical channel or high-speed physical downlink shared channel (HS-PDSCH).
5. a kind of data transmission system according to claim 4, which is characterized in that the second part physical channel packet
It includes：First physical channel and the second physical channel；
The space time transmit diversity under diversity mode is sent using open loop when carrying out data transmission based on first physical channel
Technology；
The time-switching under diversity mode is sent when based on second physical channel carrying out data transmission using open loop to send
Diversity technique.
6. a kind of data transmission system according to claim 3, which is characterized in that the data sending terminal is base station, institute
It is terminal to state data receiver.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101292445A (en) * | 2004-12-14 | 2008-10-22 | 美商内数位科技公司 | Method and apparatus for performing chip level equalization using joint processing |
| EP2007028A2 (en) * | 2006-03-31 | 2008-12-24 | NEC Corporation | Receiver |
| CN101359954A (en) * | 2007-08-03 | 2009-02-04 | 华为技术有限公司 | Demodulation method and device, equalization method and system in transmit diversity mode |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20070165735A1 (en) * | 2006-01-18 | 2007-07-19 | Interdigital Technology Corporation | Method and apparatus for supporting transmit diversity in a receiver |
-
2014
- 2014-11-28 CN CN201410710036.9A patent/CN105703815B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101292445A (en) * | 2004-12-14 | 2008-10-22 | 美商内数位科技公司 | Method and apparatus for performing chip level equalization using joint processing |
| EP2007028A2 (en) * | 2006-03-31 | 2008-12-24 | NEC Corporation | Receiver |
| CN101359954A (en) * | 2007-08-03 | 2009-02-04 | 华为技术有限公司 | Demodulation method and device, equalization method and system in transmit diversity mode |
Non-Patent Citations (4)
| Title |
|---|
| OFDM闭环发射分集结合自适应功率分配;李卫，张小频，张民，叶培大;《电子与信息学报》;20070731;第29卷(第7期);1525-1528 * |
| Transmitter diversity in SDMA based asynchronous multiuser OFDM systems;Hyejung Jung, M.D. Zoltowski;《Wireless Communication and Networking Conference》;20060406;全文 * |
| Transmitter diversity techniques for multicasting over wireless networks;Yan Sun, K.J. Ray Liu;《Wireless Communications and Networking Conference》;20040325;全文 * |
| 最优闭环发送分集;吴惠兰;《无线通信技术》;20030630(第2期);全文 * |
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