CN108540190A - Beam form-endowing method and device - Google Patents
Beam form-endowing method and device Download PDFInfo
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- CN108540190A CN108540190A CN201710127696.8A CN201710127696A CN108540190A CN 108540190 A CN108540190 A CN 108540190A CN 201710127696 A CN201710127696 A CN 201710127696A CN 108540190 A CN108540190 A CN 108540190A
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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
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
-
- 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
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
-
- 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
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
-
- 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
- H04B7/0837—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 pre-detection combining
- H04B7/0842—Weighted combining
- H04B7/086—Weighted combining using weights depending on external parameters, e.g. direction of arrival [DOA], predetermined weights or beamforming
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
Abstract
The embodiment of the invention discloses a kind of beam form-endowing method and systems.Beam form-endowing method includes：CSI processes and Feedback Rule are configured for end side, so that end side is indicated according to the Feedback Rule and CSI progress feedbacks CRI instructions, RI instructions and CQI；Wave beam forming SRS signal is received, is indicated to obtain three-dimensional wave beam formed matrix according to the wave beam forming SRS signal and the CRI, and encode downlink data according to the three-dimensional wave beam formed matrix.Severe jamming occurs when the present invention solves the problems, such as to cause user to communicate because not considering vertical dimensions information in the existing beamforming algorithm based on SRS, and then while reducing CSI measurement complexities and feedback overhead, can wave beam forming be carried out in vertical dimensions and horizontal dimensions simultaneously, the flexibility for substantially increasing beam forming, reduces inter-user interference.
Description
Technical field
The present embodiments relate to field of communication technology more particularly to beam form-endowing methods and device.
Background technology
Extensive antenna is carried in base station can not only provide higher array gain, and can form the narrow wave of high-gain
Beam is communicated with UE (User Equipment, user equipment), while improving gain of received signal, can significantly reduce use
It is interfered between family, to allow multi-user to be carried out at the same time communication, improves power system capacity today.In order to meet 5G to high data rate
Demand, the NR projects of 3GPP are studying the MIMO technology at least supporting 32 antenna ports, and corresponding antenna array unit number is high
Up to 256.A large amount of antenna port also proposes more system design while providing the beamforming transmission of high flexibility
High challenge, one of critical issue are exactly how base station obtains downlink channel condition information.
For FDD system, the precoding for needing design complicated quantifies channel, with the increase of antenna port number,
Codebook design becomes increasingly complex, and the complexity that UE searches for code book is also higher and higher.TDD system is due to that can utilize uplink and downlink channel
Between reciprocity, so being more suitable for carrying extensive antenna system.
There are no the specific multi-antenna transmitting transmission schemes of determination in current NR multiple antennas projects, and LTE recent releases at present
In the beamforming algorithm based on SRS only only account for the horizontal dimensions information of channel, do not consider vertical dimensions information, because
This same horizontal position, there are more serious inter-user interferences between different vertical position user.
Invention content
The embodiment of the present invention provides a kind of three-dimensional beam-forming method and system based on TDD system, existing to solve
Asking for severe jamming occurs when causing user to communicate because not considering vertical dimensions information in the beamforming algorithm based on SRS
Topic.
In a first aspect, an embodiment of the present invention provides a kind of beam form-endowing methods, including：
CSI processes and Feedback Rule are configured for end side, so that the end side is according to the Feedback Rule and CSI processes
Send CRI instructions, RI instructions and CQI instructions；
The CRI instructions, RI instructions and CQI instructions are received, and is sent to end side and presets DCI format configuration
Information, so that end side sends wave beam forming SRS signal according to the default DCI format configuration information to base station；
The wave beam forming SRS signal is received, indicates to obtain three-dimensional according to the wave beam forming SRS signal and the CRI
Wave beam formed matrix, and downlink data is encoded according to the three-dimensional wave beam formed matrix.
Second aspect, an embodiment of the present invention provides a kind of beam form-endowing method, this method includes：.
Receive CSI processes and Feedback Rule；
According to Feedback Rule CRI instructions, RI instructions and CQI instructions are sent to base station；
It receives and presets DCI format configuration information, sending wave beam to base station side according to the default DCI format configuration information assigns
Shape SRS signal, so that base station side indicates to obtain three-dimensional wave beam formed matrix according to the wave beam forming SRS signal and the CRI,
And downlink data is encoded according to the three-dimensional wave beam formed matrix.
The third aspect, an embodiment of the present invention provides a kind of base stations for three-dimensional wave beam forming, including：
CSI processes and Feedback Rule configuration module, for configuring CSI processes and Feedback Rule for end side, so that described
End side sends CRI instructions, RI instructions and CQI according to the Feedback Rule and CSI processes and indicates；
Default DCI format configuration information sending module refers to for receiving the CRI instructions, RI instructions and the CQI
Show, and sent to end side and preset DCI format configuration information so that end side according to the default DCI format configuration information to
Base station sends wave beam forming SRS signal；
Three-dimensional wave beam forming matrix coder module, for receiving the wave beam forming SRS signal, according to the wave beam forming
SRS signal and the CRI indicate to obtain three-dimensional wave beam formed matrix, and according to the three-dimensional wave beam formed matrix to downlink data
It is encoded.
Fourth aspect, an embodiment of the present invention provides a kind of user equipmenies for three-dimensional wave beam forming, including：
Information receiving module, for receiving CSI processes and Feedback Rule；
It indicates information sending module, is indicated for sending CRI instructions, RI instructions and CQI to base station according to Feedback Rule；
Wave beam forming SRS signal sending module, for receiving default DCI format configuration information, according to the default DCI lattice
Formula configuration information sends wave beam forming SRS signal to base station side, so that base station side is according to the wave beam forming SRS signal and described
CRI indicates to obtain three-dimensional wave beam formed matrix, and is encoded to downlink data according to the three-dimensional wave beam formed matrix.
The embodiment of the present invention indicates to obtain three-dimensional wave beam formed matrix by wave beam forming SRS signal and the CRI.It solves
Occur when causing user to communicate because not considering vertical dimensions information in the existing beamforming algorithm based on SRS serious dry
The problem of disturbing, and then while reducing CSI measurement complexities and feedback overhead, it can be simultaneously in vertical dimensions and horizontal dimensions
Upper carry out wave beam forming, substantially increases the flexibility of beam forming, reduces inter-user interference.
Description of the drawings
Fig. 1 a are a kind of three-dimensional beam form-endowing method flow charts in the embodiment of the present invention one.
Fig. 1 b are a kind of aerial array schematic diagrames in the embodiment of the present invention one.
Fig. 2 is a kind of three-dimensional beam form-endowing method flow chart in the embodiment of the present invention two.
Fig. 3 is a kind of three-dimensional beam form-endowing method flow chart in the embodiment of the present invention three.
Fig. 4 is a kind of three-dimensional beam form-endowing method flow chart in the embodiment of the present invention four.
Fig. 5 is a kind of architecture of base station schematic diagram for three-dimensional wave beam forming in the embodiment of the present invention five.
Fig. 6 is a kind of user device architecture schematic diagram for three-dimensional wave beam forming in the embodiment of the present invention six.
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.
Embodiment one
Fig. 1 a are a kind of three-dimensional beam form-endowing method flow chart that the embodiment of the present invention one provides, and the present embodiment is applicable to
The case where base station carries out wave beam forming to the horizontal dimensions information and vertical dimensions information of channel information in extensive antenna system,
This method can be executed by a kind of base station for three-dimensional wave beam forming, which can be by the mode of software and/or hardware
To realize.As shown in Figure 1a, this method includes：
S110, CSI processes and Feedback Rule are configured for end side so that the end side according to the Feedback Rule and
CSI progress feedbacks CRI instructions, RI instructions and CQI instructions.
The present embodiment will have N with onetThe large-scale antenna array system of a transmission unit, the antenna element in the system
It can select to be arranged in two dimensions of horizontal dimensions and vertical dimensions.Further, the antenna of vertical dimensions can be tieed up
Degree arrangement is close, has higher correlation.
Wherein, CSI processes, that is, channel state information process (Channel State Information, CSI), CSI processes
Including at least one CSI-RS resource and at least one CSI-RS signal, CSI-RS resource, that is, channel state information measures pilot tone
(Channel State Information reference signals, CSI-RS), the CSI-RS resource and the CSI-
RS signals are corresponding.
Reference Signal Received Power (Reference Signal Receiving Power, RSRP) value is for indicating wireless
The key parameter of signal strength is the signal power received in all resource grains for carried in some symbol reference signal
Average value.CSI-RS resource instruction is used to indicate the vertical direction where terminal, and order instruction (Rank Indicator, RI) is used for
Indicate that channel allows the maximum number of plies of transmission, channel quality to indicate that (Channel Quality Indicator, CQI) instruction is used
In instruction channel quality, auxiliary carries out adaptive coding and modulating.
Optionally, the antenna element number of horizontal dimensions can include 2/4/8 antenna in the antenna array system, and vertical
The antenna of dimension can have 8 even more antenna elements, because the antenna of vertical dimensions is high relevant, can be formed pair
The wave beam of quasi- UE, to provide additional figuration gain.If CSI-RS resource and data use identical vertical dimension figuration, then
CSIs of the UE based on the CSI-RS resource feedback after figuration can reflect the horizontal dimensions assumed based on corresponding vertical dimension figuration
CSI.So as to use the corresponding horizontal Victoria C SI of vertical dimension figuration vector sum to carry out precoding to data.
Since UE may be dispersion in vertical dimensions, in order to maximize the figuration gain of vertical dimension, need to send a large amount of
CSI-RS resource come the UE that is aligned in different vertical dimension.Different CSI-RS resource should provide enough after wave beam forming
Big vertical dimension coverage area.
S120, the CRI instructions, RI instructions and CQI instructions are received, and is sent to end side and presets DCI lattice
Formula configuration information, so that end side sends wave beam forming SRS signal according to the default DCI format configuration information to base station.
Wave beam forming is to realize phasing signal transmission or received signal treatment technology using sensor array；It can be at certain
A special angle (target user) enhances signal, in non-targeted user or barrier attenuated signal.And it can send out simultaneously
Sending end and receiving terminal realize the selectivity in space.Compared to received with omnidirectional/improvement of transmission antenna is referred to as reception/transmitting and increases
Benefit.The SRS signal that wave beam forming SRS signal (Beamformed SRS) sends target BS by end side, for measuring
Uplink signal-channel quality.
S130, the wave beam forming SRS signal is received, indicates to obtain according to the wave beam forming SRS signal and the CRI
Three-dimensional wave beam formed matrix, and downlink data is encoded according to the three-dimensional wave beam formed matrix.
Further, the CSI processes include at least one CSI-RS resource and at least one CSI-RS signal, described
CSI-RS resource and the CSI-RS signal are corresponding；It is described so that the end side is according to the Feedback Rule and CSI processes
CRI instructions, RI instructions and CQI instructions are sent, including：So that end side measures the RSRP of at least one CSI-RS signal
Value, and indicated to base station feedback CRI using with including the corresponding CSI-RS resource of the maximum CSI-RS signal of RSRP values, profit
It is indicated with the RI instructions and CQI of the CSI-RS signal detection down channel for including the maximum RSRP values and feeds back to base
It stands.
RSRP is the average value of the signal power received in all resource particles for carry reference signal, and RSRP is bigger,
Indicate that the signal power received is bigger.
Illustratively, base station is equipped with two-dimensional antenna array as shown in figure ib, and as shown in Figure 1 b, Fig. 1 b are the present invention
A kind of aerial array schematic diagram described in embodiment one, aerial array include S antenna port, and each antenna port corresponds to same
M antenna element in a polarization direction, UE are equipped with an antenna for including T antenna port, and each antenna port corresponds to one
A antenna element.
Illustratively, the down channel matrix of base station is estimated s (s=0,1 ..., S-1) antenna port to UE is
The dimension of Hs, Hs are M × T, the CRI that base station is fed back according to UE in step 1, and the vertical weighing vector of construction one M dimensions can
The weighing vector form of choosing is
Wherein, wVIndicate that the vertical weighing vector of M dimensions, d indicate the vertically adjacent antenna element of base-station antenna array
Spacing, λ indicate that carrier wavelength, θ are the corresponding vertical beam angles of CRI.
By the conjugate transposition of the down channel matrix of S antenna port to UE respectively with above-mentioned vertical dimensions weighing vector wV
It is multiplied, i.e.,And the matrix arrangement after multiplication is formed into newly equivalent
Channel matrix H=[P0 P1 … PS-1]。
SVD decomposition, i.e. H=U Λ V are carried out to the channel matrix H arranged againH, select right singular matrix V's according to RI
Preceding RI row carry out precoding as three-dimensional wave beam formed matrix, and to downlink data.
The embodiment of the present invention indicates to obtain three-dimensional wave beam formed matrix by wave beam forming SRS signal and the CRI.It solves
Occur when causing user to communicate because not considering vertical dimensions information in the existing beamforming algorithm based on SRS serious dry
The problem of disturbing, and then while reducing CSI measurement complexities and feedback overhead, it can be simultaneously in vertical dimensions and horizontal dimensions
Upper carry out wave beam forming, substantially increases the flexibility of beam forming, reduces inter-user interference.
Embodiment two
Fig. 2 is a kind of three-dimensional beam form-endowing method flow chart in the embodiment of the present invention two, and the present embodiment is in embodiment one
On the basis of, wave beam forming SRS signal is sent to base station using the best wave beam that sends, as shown in Fig. 2, this method includes：
S210, CSI processes and Feedback Rule are configured for end side so that the end side according to the Feedback Rule and
CSI progress feedbacks CRI instructions, RI instructions and CQI instructions.
S220, the CRI instructions, RI instructions and CQI instructions are received, and is sent to end side and presets DCI lattice
Formula configuration information so that the terminal receives the default DCI format configuration information, and judges whether the terminal has wave beam
Figuration ability.
The realization of wave beam forming needs specific condition, such as needs to realize by RF hardware.It therefore can be according to institute
Belong to whether terminal is provided with RF hardware to judge whether the terminal has beamforming capabilities.
S230, if it is judged that being yes, then make the terminal according to the default DCI format configuration information, using most
Good transmission wave beam sends wave beam forming SRS signal to base station.
Wave beam forming SRS signal is the SRS signal sent to target BS by end side, for measuring up channel matter
Amount.
Further, described if it is judged that be no, then so that the terminal is matched confidence according to the default DCI format
Breath sends wave beam using omnidirectional and sends non-wave beam forming SRS signal to base station.
S240, the wave beam forming SRS signal is received, indicates to obtain according to the wave beam forming SRS signal and the CRI
Three-dimensional wave beam formed matrix, and downlink data is encoded according to the three-dimensional wave beam formed matrix.
The technical solution of the present embodiment presets DCI format configuration information by being sent to end side so that end side according to
The default DCI format configuration information is to base station feedback wave beam forming SRS signal.
Embodiment three
Fig. 3 is a kind of three-dimensional beam form-endowing method flow chart that the embodiment of the present invention three provides, and the present embodiment is applicable to
User equipment receives the case where horizontal dimensions and vertical dimensions all pass through the channel information of wave beam forming, and this method can be by one kind
It is executed for the user equipment of three-dimensional wave beam forming, which can be realized by the mode of software and/or hardware.Such as
Shown in Fig. 3, this method includes：
S310, CSI processes and Feedback Rule configuration information are received.
S320, CRI instructions, RI instructions and CQI instructions are sent to base station according to Feedback Rule.
S330, it receives and presets DCI format configuration information, sent to base station side according to the default DCI format configuration information
Wave beam forming SRS signal, so that base station side indicates to obtain three-dimensional wave beam tax according to the wave beam forming SRS signal and the CRI
Shape matrix, and downlink data is encoded according to the three-dimensional wave beam formed matrix.
Further, the CSI processes include at least one CSI-RS resource and at least one CSI-RS signal, described
CSI-RS resource and the CSI-RS signal are corresponding；
It is described that CRI instructions, RI instructions and CQI instructions are sent to base station according to Feedback Rule configuration information, including：
Measure the RSRP values of at least one CSI-RS signal, and using with the CSI-RS that includes the maximum RSRP values
The corresponding CSI-RS resource of signal sends CRI instructions to base station, utilizes the CSI-RS signal for including the maximum RSRP values
The RI instructions of detection down channel and CQI indicating concurrents give base station side.
End side of the embodiment of the present invention is indicated by sending wave beam forming SRS signal and CRI, so that base station side is according to reception
To wave beam forming SRS signal and the CRI indicate to obtain three-dimensional wave beam formed matrix.Solves the existing wave based on SRS
Severe jamming occurs when causing user to communicate because not considering the problems of vertical dimensions information in beam forming algorithm, and then is reducing
While CSI measures complexity and feedback overhead, can wave beam forming be carried out in vertical dimensions and horizontal dimensions simultaneously, significantly
The flexibility for improving beam forming, reduces inter-user interference.
Example IV
Fig. 4 is a kind of three-dimensional beam form-endowing method flow chart in the embodiment of the present invention four, and the present embodiment is in embodiment three
On the basis of, wave beam forming SRS signal is sent to base station using the best wave beam that sends, as shown in figure 4, this method includes：
S410, CSI processes and Feedback Rule are received；
S420, CRI instructions, RI instructions and CQI instructions are sent to base station according to Feedback Rule；
S430, it receives and presets DCI format configuration information；
S440, judge whether itself has beamforming capabilities；
S450, if it is judged that be yes, then according to the default DCI format configuration information, utilize and best send wave beam
Wave beam forming SRS signal is sent to base station.
If it is judged that being no, then according to the default DCI format configuration information, wave beam is sent to base station using omnidirectional
Send non-wave beam forming SRS signal
The technical solution of the present embodiment, end side send wave beam to base station according to the default DCI format configuration information and assign
Shape SRS signal, so as to adjust the parameter of the basic unit of phased array so that the signal of certain angles obtains constructive interference, and
The signals of other angles obtains destructive interference, to compensate during radio transmission by space loss, signal fadeout and distortion,
Reduce the interference between co-channel users.
Embodiment five
Fig. 5 show a kind of architecture of base station schematic diagram for three-dimensional wave beam forming of the offer of the embodiment of the present invention five, such as
Shown in Fig. 5, which includes：CSI processes and Feedback Rule configuration module 510, default DCI format
Configuration information sending module 520 and three-dimensional wave beam forming matrix coder module 530.
Wherein, CSI processes and Feedback Rule configuration module 510, for configuring CSI processes and Feedback Rule for end side,
It is indicated so that the end side sends CRI instructions, RI instructions and CQI according to the Feedback Rule and CSI processes；
Default DCI format configuration information sending module 520, for receiving the CRI instructions, the RI is indicated and described
CQI is indicated, and is sent to end side and preset DCI format configuration information, so that confidence is matched in end side according to the default DCI format
It ceases to base station and sends wave beam forming SRS signal；
Three-dimensional wave beam forming matrix coder module 530, for receiving the wave beam forming SRS signal, according to the wave beam
Figuration SRS signal and the CRI indicate to obtain three-dimensional wave beam formed matrix, and according to the three-dimensional wave beam formed matrix to downlink
Data are encoded.
The embodiment of the present invention indicates to obtain three-dimensional wave beam formed matrix by wave beam forming SRS signal and the CRI.It solves
Occur when causing user to communicate because not considering vertical dimensions information in the existing beamforming algorithm based on SRS serious dry
The problem of disturbing, and then while reducing CSI measurement complexities and feedback overhead, it can be simultaneously in vertical dimensions and horizontal dimensions
Upper carry out wave beam forming, substantially increases the flexibility of beam forming, reduces inter-user interference.
On the basis of the various embodiments described above, the CSI processes include at least one CSI-RS resource and at least one
CSI-RS signal, the CSI-RS resource and the CSI-RS signal are corresponding；
The CSI processes and Feedback Rule configuration module 510 include：
Down channel determination unit, for so that end side measures the RSRP values of at least one CSI-RS signal, and
Using with send CRI to base station including the corresponding CSI-RS resource of the maximum CSI-RS signal of RSRP values and indicate, utilize institute
Base station is given in the RI instructions and CQI indicating concurrents for stating the CSI-RS signal detection down channel including the maximum RSRP values.
On the basis of the various embodiments described above, three-dimensional wave beam forming matrix coder module 530 includes：
Up channel Matrix Estimation unit, for estimating up channel matrix according to the wave beam forming SRS signal；
Vertical antenna weighing vector structural unit, for according to the CRI indication structures vertical antenna weighing vector；
Channel intermediary matrix computing unit, being used for will be described corresponding with including the maximum CSI-RS signal of RSRP values
The port down channel matrix of each antenna port in CSI-RS resource obtains letter with the vertical antenna weighting vector
Road intermediary matrix；
Equivalent down channel matrix acquiring unit obtains equivalent downlink letter for being rearranged to the channel intermediary matrix
Road matrix；
Three-dimensional wave beam formed matrix acquiring unit is obtained for carrying out SVD decomposition operations to the equivalent down channel matrix
To right singular matrix, three-dimensional wave beam formed matrix is obtained according to RI instructions and right singular matrix.
It is described to include with default DCI format configuration information sending module 520 on the basis of the various embodiments described above：
Beamforming capabilities judging unit is used for so that the terminal receives the default DCI format configuration information, and sentences
Whether the terminal of breaking has beamforming capabilities；
Wave beam forming SRS signal transmission unit, for if it is judged that be yes, then making the terminal according to described default
DCI format configuration information sends wave beam forming SRS signal using the best wave beam that sends to base station.
On the basis of the various embodiments described above, the wave beam forming SRS signal transmission unit includes：
Non- wave beam forming SRS signal transmission unit then makes the terminal according to institute for determining if it is judged that be no
Default DCI format configuration information is stated, send wave beam using omnidirectional sends non-wave beam forming SRS signal to base station.
The base station for three-dimensional wave beam forming that the embodiment of the present invention is provided can be used for executing institute of the embodiment of the present invention
One kind of offer is used for three-dimensional beam form-endowing method, has corresponding function and advantageous effect.It is not detailed in the present embodiment to retouch
The technical detail stated, reference can be made to any embodiment of the present invention offer is used for three-dimensional beam form-endowing method.
Embodiment six
Fig. 6 show a kind of user device architecture signal for three-dimensional wave beam forming of the offer of the embodiment of the present invention six
Figure, as shown in fig. 6, the user equipment for being used for three-dimensional wave beam forming includes：It is CSI processes and Feedback Rule configuration module 610, pre-
If DCI format configuration information sending module 620 and three-dimensional wave beam forming matrix coder module 630.
Wherein, information receiving module 610, for receiving CSI processes and Feedback Rule configuration information；
Information sending module 620 is indicated, for sending CRI instructions, RI instructions to base station according to Feedback Rule configuration information
It is indicated with CQI；
Wave beam forming SRS signal sending module 630, for receiving default DCI format configuration information, according to described default
DCI format configuration information sends wave beam forming SRS signal to base station side, so that base station side is according to the wave beam forming SRS signal
It indicates to obtain three-dimensional wave beam formed matrix with the CRI, and downlink data is compiled according to the three-dimensional wave beam formed matrix
Code.
The embodiment of the present invention indicates to obtain three-dimensional wave beam formed matrix by wave beam forming SRS signal and the CRI.It solves
Occur when causing user to communicate because not considering vertical dimensions information in the existing beamforming algorithm based on SRS serious dry
The problem of disturbing, and then while reducing CSI measurement complexities and feedback overhead, it can be simultaneously in vertical dimensions and horizontal dimensions
Upper carry out wave beam forming, substantially increases the flexibility of beam forming, reduces inter-user interference.
On the basis of the various embodiments described above, the CSI processes include at least one CSI-RS resource and at least one
CSI-RS signal, the CSI-RS resource and the CSI-RS signal are corresponding
CSI processes and Feedback Rule configuration module 620 include：
Down channel determination unit, the RSRP values for measuring at least one CSI-RS signal, and using with including
The corresponding CSI-RS resource of CSI-RS signal of the maximum RSRP values sends CRI instructions to base station, using described including maximum
The RI instructions of the CSI-RS signal detection down channel of the RSRP values and CQI indicating concurrents give base station side.
On the basis of the various embodiments described above, default DCI format configuration information sending module 630 includes：
Beamforming capabilities judging unit, for judging whether itself has beamforming capabilities；
Wave beam forming SRS signal transmission unit, for if it is judged that be yes, then being matched according to the default DCI format
Confidence ceases, and wave beam forming SRS signal is sent to base station using the best wave beam that sends.
The user equipment for three-dimensional wave beam forming that the embodiment of the present invention is provided can be used for executing implementation of the present invention
What example was provided is used for three-dimensional beam form-endowing method, has corresponding function and advantageous effect.It is not detailed in the present embodiment to retouch
The technical detail stated, reference can be made to any embodiment of the present invention offer is used for three-dimensional beam form-endowing method.
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 (10)
1. a kind of beam form-endowing method, which is characterized in that including：
CSI processes and Feedback Rule are configured for end side, so that the end side is according to the Feedback Rule and CSI progress feedbacks
CRI instructions, RI instructions and CQI instructions；
The CRI instructions, RI instructions and CQI instructions are received, and sends default DCI format to end side and matches confidence
Breath, so that end side sends wave beam forming SRS signal according to the default DCI format configuration information to base station；
The wave beam forming SRS signal is received, indicates to obtain three-dimensional wave beam according to the wave beam forming SRS signal and the CRI
Figuration matrix, and downlink data is encoded according to the three-dimensional wave beam formed matrix.
2. beam form-endowing method according to claim 1, which is characterized in that the CSI processes include at least one CSI-
RS resources and at least one CSI-RS signal, the CSI-RS resource and the CSI-RS signal are corresponding；
It is described so that the end side is indicated according to the Feedback Rule and CSI progress feedbacks CRI instruction, RI instructions and CQI, packet
It includes：
So that end side measures the RSRP values of at least one CSI-RS signal, and using with including the maximum RSRP values
The corresponding CSI-RS resource of CSI-RS signal sends CRI instructions to base station, utilizes the CSI- for including the maximum RSRP values
The RI instructions of RS signal detection down channels and CQI are indicated and are fed back to base station.
3. beam form-endowing method according to claim 2, which is characterized in that according to the wave beam forming SRS signal and institute
CRI is stated to indicate to obtain three-dimensional wave beam formed matrix, including：
Estimate up channel matrix according to the wave beam forming SRS signal；
According to the CRI indication structures vertical antenna weighing vector；
By it is described with including each antenna port in the corresponding CSI-RS resource of the maximum CSI-RS signal of RSRP values
Down channel matrix obtains channel intermediary matrix with the vertical antenna weighting vector；
The channel intermediary matrix is rearranged to obtain equivalent down channel matrix；
SVD decomposition operations are carried out to the equivalent down channel matrix and obtain right singular matrix, according to RI instructions and right unusual square
Battle array obtains three-dimensional wave beam formed matrix.
4. beam form-endowing method according to claim 1, which is characterized in that described so that end side is according to described default
DCI format configuration information sends wave beam forming SRS signal to base station, including：
So that the terminal receives the default DCI format configuration information, and judge whether the terminal has wave beam forming energy
Power；
If it is judged that being yes, then make the terminal according to the default DCI format configuration information, wave beam is sent using best
Wave beam forming SRS signal is sent to base station.
5. beam form-endowing method according to claim 4, which is characterized in that it is described if it is judged that be yes, then make institute
Terminal is stated according to the default DCI format configuration information, wave beam forming SRS signal is sent to base station using the best wave beam that sends,
Including：
It is described if it is judged that be no, then make the terminal according to the default DCI format configuration information, sent using omnidirectional
Wave beam sends non-wave beam forming SRS signal to base station.
6. a kind of beam form-endowing method, which is characterized in that including：
Receive CSI processes and Feedback Rule configuration information；
According to the Feedback Rule configuration information CRI instructions, RI instructions and CQI instructions are sent to base station；
It receives and presets DCI format configuration information, wave beam forming is sent to base station side according to the default DCI format configuration information
SRS signal, so that base station side indicates to obtain three-dimensional wave beam formed matrix according to the wave beam forming SRS signal and the CRI, and
Downlink data is encoded according to the three-dimensional wave beam formed matrix.
7. beam form-endowing method according to claim 6, which is characterized in that
The CSI processes include at least one CSI-RS resource and at least one CSI-RS signal, the CSI-RS resource and institute
It is corresponding to state CSI-RS signal；
It is described that CRI instructions, RI instructions and CQI instructions are sent to base station according to Feedback Rule configuration information, including：
Measure the RSRP values of at least one CSI-RS signal, and using with the CSI-RS signal that includes the maximum RSRP values
Corresponding CSI-RS resource sends CRI instructions to base station, is detected using the CSI-RS signal including the maximum RSRP values
The RI instructions of down channel and CQI indicating concurrents give base station side.
8. three-dimensional beam form-endowing method according to claim 6, which is characterized in that described according to the default DCI format
Configuration information sends wave beam forming SRS signal to base station side, including：
Judge whether itself has beamforming capabilities；
If it is judged that being yes, then according to the default DCI format configuration information, sent to base station using the best wave beam that sends
Wave beam forming SRS signal.
9. a kind of base station for wave beam forming, which is characterized in that including：
CSI processes and Feedback Rule configuration module, for configuring CSI processes and Feedback Rule for end side, so that the terminal
Lateral root sends CRI instructions, RI instructions and CQI according to the Feedback Rule and CSI processes and indicates；
Default DCI format configuration information sending module, for receiving the CRI instructions, RI instructions and CQI instructions,
And sent to end side and preset DCI format configuration information so that end side according to the default DCI format configuration information to base station
Send wave beam forming SRS signal；
Three-dimensional wave beam forming matrix coder module, for receiving the wave beam forming SRS signal, according to the wave beam forming SRS
Signal and the CRI indicate to obtain three-dimensional wave beam formed matrix, and according to the three-dimensional wave beam formed matrix to downlink data into
Row coding.
10. a kind of user equipment for wave beam forming, which is characterized in that including：
Information receiving module, for receiving CSI processes and Feedback Rule configuration information；
It indicates information sending module, refers to for sending CRI instructions, RI instructions and CQI to base station according to Feedback Rule configuration information
Show；
Wave beam forming SRS signal sending module is matched for receiving default DCI format configuration information according to the default DCI format
Confidence, which is ceased to base station side, sends wave beam forming SRS signal, so that base station side is according to the wave beam forming SRS signal and the CRI
Instruction obtains three-dimensional wave beam formed matrix, and is encoded to downlink data according to the three-dimensional wave beam formed matrix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710127696.8A CN108540190A (en) | 2017-03-06 | 2017-03-06 | Beam form-endowing method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710127696.8A CN108540190A (en) | 2017-03-06 | 2017-03-06 | Beam form-endowing method and device |
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| CN108540190A true CN108540190A (en) | 2018-09-14 |
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|---|---|---|---|
| CN201710127696.8A Pending CN108540190A (en) | 2017-03-06 | 2017-03-06 | Beam form-endowing method and device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109644456A (en) * | 2018-11-29 | 2019-04-16 | 北京小米移动软件有限公司 | Beam scanning range determining method, device, equipment and storage medium |
| CN113258974A (en) * | 2020-02-10 | 2021-08-13 | 大唐移动通信设备有限公司 | Channel state information feedback method, device, terminal, network side and storage medium |
| US20220006501A1 (en) * | 2019-01-11 | 2022-01-06 | Lg Electronics Inc. | Method by which user equipment transmits srs in order to cancel remote cross-link interference in wireless communication system, and apparatus |
-
2017
- 2017-03-06 CN CN201710127696.8A patent/CN108540190A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109644456A (en) * | 2018-11-29 | 2019-04-16 | 北京小米移动软件有限公司 | Beam scanning range determining method, device, equipment and storage medium |
| CN109644456B (en) * | 2018-11-29 | 2023-10-10 | 北京小米移动软件有限公司 | Beam scanning range determining method, device, equipment and storage medium |
| US20220006501A1 (en) * | 2019-01-11 | 2022-01-06 | Lg Electronics Inc. | Method by which user equipment transmits srs in order to cancel remote cross-link interference in wireless communication system, and apparatus |
| US11894900B2 (en) * | 2019-01-11 | 2024-02-06 | Lg Electronics Inc. | Method by which user equipment transmits SRS in order to cancel remote cross-link interference in wireless communication system, and apparatus |
| CN113258974A (en) * | 2020-02-10 | 2021-08-13 | 大唐移动通信设备有限公司 | Channel state information feedback method, device, terminal, network side and storage medium |
| CN113258974B (en) * | 2020-02-10 | 2022-12-30 | 大唐移动通信设备有限公司 | Channel state information feedback method, device, terminal, network side and storage medium |
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