CN103220090B

CN103220090B - Codebook feedback method, signal receiving device, signal transmission method and signal transmission device

Info

Publication number: CN103220090B
Application number: CN201210018007.7A
Authority: CN
Inventors: 史志华; 董伟辉; 刘建军; 刘光毅
Original assignee: China Mobile Communications Group Co Ltd
Current assignee: China Mobile Communications Group Co Ltd
Priority date: 2012-01-19
Filing date: 2012-01-19
Publication date: 2017-03-22
Anticipated expiration: 2032-01-19
Also published as: WO2013107367A1; CN103220090A

Abstract

The invention discloses a codebook feedback method, a signal receiving device, a signal transmission method and a signal transmission device. The signal transmission method comprises the steps of a. selecting a plurality of first matrixes from a preset first codebook and selecting a plurality of second matrixes form a preset second codebook when a signal transmitting side needs to transmit signals to a signal receiving side in a 3-dimensional multiple-input-multiple-output (3D MIMO) system; b. conducting weighted processing to a signal matrix which is transmitted to the signal receiving side according to the plurality of selected first matrixes and second matrixes; and c. transmitting the signals after weighted processing to the signal receiving side. The signal transmission method achieves signal transmission between the signal transmitting side and the signal receiving side in the 3D MIMO system.

Description

Code book feedback method and signal receiving device, signaling method and device

Technical field

The present invention relates to communication technical field, more particularly to a kind of code book feedback method and signal receiving device, signal Delivery method and device.

Background technology

Multiple-input and multiple-output (MIMO, Multiple-Input-Multiple-Output) technology is current main flow channel radio One of key technology of letter system.The space division characteristic of mimo system can make system support multiple data flows, improve system Handling capacity, the diversity performance of mimo system can improve the reliability of system transfers, improve Consumer's Experience.

Currently employed MIMO technology is all belonging to two-dimentional (2D Dimensions) MIMO technology, as shown in figure 1, when letter When number sender adopts M transmitting antenna, precoding/beam shaping technology is by carrying out to the corresponding signal of M transmitting antenna Weighting is processed so as to match present channel, so as to improve the performance of system.

With the progress of hardware technology, MIMO technology will become in future from 2D to three-dimensional (3D, 3Dimensions) extension Reality.In 3D MIMO technologies, each antenna is made up of K junior unit (being properly termed as antenna element), as shown in Fig. 2 3D Mimo system can directly control each antenna element by Base-Band Processing, now precoding/beam shaping technology can to M × The corresponding signal of K antenna element is weighted process.Compare with 2D MIMO technologies, 3D MIMO technologies are by baseband signal Process, can dynamically changing section bandwidth or whole antenna angle of declination, on the one hand can improve active user and receive and believe Number energy, interference that on the other hand can effectively between suppression system, such that it is able to improve the overall performance of wireless network.

But, prior art does not also propose to transmit between signalling and receiving side signal in 3D mimo systems The specific implementation of signal.

The content of the invention

The embodiment of the present invention provides a kind of code book feedback method and signal receiving device, signaling method and device, uses To propose a kind of specific implementation of transmission signal between signalling and receiving side signal in 3D mimo systems.

Embodiment of the present invention technical scheme is as follows：

A kind of code book feedback method in three-dimensional multiple-input and multiple-output 3D mimo systems, the method comprising the steps of：3D Receiving side signal in mimo system selects several first matrixes from the first codebook set for pre-setting, and from advance Several the second matrixes are selected in the second codebook set for arranging；By the matrix identification of the first matrix selected and select The matrix identification of the second matrix is sent to signalling.

A kind of signal receiving device in three-dimensional multiple-input and multiple-output 3D mimo systems, including：First matrix selects single Unit, for selecting several first matrixes from the first codebook set for pre-setting；Second matrix select unit, for from pre- Several second matrixes are selected in the second codebook set for first arranging；Transmitting element, for the first matrix select unit is selected The matrix identification of the second matrix that the matrix identification of the first matrix for going out and the second matrix select unit are selected is sent to signal Dispensing device.

A kind of signaling method in three-dimensional multiple-input and multiple-output 3D mimo systems, the method comprising the steps of：3D When signalling in mimo system is needed to receiving side signal sending signal, select from the first codebook set for pre-setting Several the first matrixes are selected, several second matrixes are selected from the second codebook set for pre-setting；If according to what is selected Dry the first matrix and several second matrixes, to needing the signal matrix for being sent to receiving side signal to be weighted process；And The each signal obtained after weighting is processed is sent to the receiving side signal.

A kind of sender unit in three-dimensional multiple-input and multiple-output 3D mimo systems, including：First matrix selects single Unit, for when the sender unit is needed to signal receiving device sending signal, from the first code book collection for pre-setting Several the first matrixes are selected in conjunction；Second matrix select unit, for needing to signal to receive in the sender unit During device sending signal, several second matrixes are selected from the second codebook set for pre-setting；Weighting processing unit, is used for The second matrix that the first matrix and the second matrix select unit selected according to the first matrix select unit is selected, to needing The signal stream of signal receiving device to be sent to is weighted process；Signal transmitting unit, for weighting processing unit is carried out Each signal that weighting is obtained after processing is sent to the signal receiving device.

In embodiment of the present invention technical scheme, the first codebook set and the second code book are set for 3D mimo systems in advance Set, the first codebook set include default several first matrixes, and the second codebook set includes default several second squares Battle array, when the signalling in 3D mimo systems is needed to receiving side signal sending signal, selects from the first codebook set Several first matrixes, select several second matrixes from the second codebook set for pre-setting, and if according to selecting Dry the first matrix and several second matrixes, to needing the signal matrix for being sent to receiving side signal to be weighted process, so The each signal obtained after afterwards processed weighting is sent to the receiving side signal.Therefore, the embodiment of the present invention proposes one The specific implementation of transmission signal between the signalling and receiving side signal in 3DMIMO systems is planted, effectively can be dropped The expense of low code book feedback, improves systematic function, reduces the overall complexity that system is realized.

Description of the drawings

During Fig. 1 is prior art, 2D mimo system sending antenna structure schematic diagrams；

During Fig. 2 is prior art, 3D mimo system sending antenna structure schematic diagrams；

During Fig. 3 is the embodiment of the present invention one, the code book feedback method schematic flow sheet in 3D mimo systems；

During Fig. 4 is the embodiment of the present invention two, the signal receiving device structural representation in 3D mimo systems；

During Fig. 5 is the embodiment of the present invention three, the signaling method schematic flow sheet in 3D mimo systems；

During Fig. 6 is the embodiment of the present invention four, the sender unit structural representation in 3D mimo systems.

Specific embodiment

With reference to each accompanying drawing to embodiment of the present invention technical scheme it is main realize principle, specific embodiment and its Beneficial effect to reaching is set forth in.

Embodiment one

As shown in figure 3, the code book feedback method flow chart in the 3D mimo systems proposed for the embodiment of the present invention one, its Concrete processing procedure is as follows：

Step 31, the receiving side signal in 3D mimo systems select several from the first codebook set for pre-setting First matrix, and several second matrixes are selected from the second codebook set for pre-setting.

Signalling in 3D mimo systems can be base station, then corresponding receiving side signal is user equipment (UE, User Equipment), signalling can also be UE, then corresponding receiving side signal is base station.

Receiving side signal can be, but not limited to according to Criterion of Selecting set in advance select the first matrix and the second matrix, Criterion of Selecting can, interference minimum maximum for capacity or Signal to Interference plus Noise Ratio (SINR, Signal to Interference plus Noise Ratio) highest.

If the signalling in 3D mimo systems adopts M transmitting antenna, each transmitting antenna is by K antenna element Composition, its corresponding numbering are (x, y) wherein x corresponding to the numbering (x=1 ..., M) of the affiliated transmitting antenna of antenna element, y pair Should be in numbering of the antenna element on transmitting antenna (y=1 ..., K), as shown in Fig. 2 in same level direction (same to a line) Antenna element collection be combined into (1, y), (2, y) ..., (M, y), y correspondence row.

In the embodiment of the present invention one, two different codebook sets, the first code book collection is pre-set for 3D mimo systems C1 and the second codebook set C2 is closed, specifically：

1st, comprising T the first matrix subclass in the first codebook set C1, T≤K, each first matrix subclass are designated as Pi (i=1 ..., T), each first matrix subclass include several first matrixes, for the K antenna to a transmitting antenna Signal corresponding to a period of time is weighted, wherein, the signal square that each first matrix subclass is received with receiving side signal respectively The line number correspondence of battle array, for example, the first matrix subclass P1 is corresponding with line number 1 (i.e. the line number of signal matrix is 1), the first matrix Set P2 is corresponding with line number 2 (i.e. the line number of signal matrix is 2), and the rest may be inferred, and the first matrix subclass Pi (is believed with line number i Line number in number matrix is i) correspondence.

When receiving side signal selects several first matrixes from the first codebook set C1, the letter for receiving as needed first The line number of number matrix, in several the first matrix subclass that the first codebook set is included, chooses and the signal for needing to receive The corresponding first matrix subclass of line number of matrix, and several the first squares are selected from the first matrix subclass for selecting Battle array.

In each first matrix subclass, the line number of each first matrix is included for each transmitting antenna of signalling The number K of antenna element, columns are the line number of the signal matrix that receiving side signal is received, for example, in the first matrix subclass P1 The size of each first matrix is K × 1, and in the first matrix subclass P2, the size of each first matrix is K × 2, and the rest may be inferred, In first matrix subclass Pi, the size of each first matrix is K × i.

2nd, comprising G the second matrix subclass in the second codebook set C2, G≤M, each second matrix subclass are designated as Ri (i=1 ..., G), each second matrix subclass include several second matrixes, for (same to same level direction The signal corresponding to M antenna element OK) is weighted, wherein, each second matrix subclass respectively with receiving side signal The columns correspondence of the signal matrix of reception, for example, the second matrix subclass R1 is right with columns 1 (i.e. the columns of signal matrix is 1) Should, the second matrix subclass R2 is corresponding with columns 2 (i.e. the columns of signal matrix is 2), and the rest may be inferred, the second matrix subclass Ri It is corresponding with columns i (columns i.e. in signal matrix is i).

When receiving side signal selects several second matrixes from the second codebook set C2, the letter for receiving as needed first Number matrix column number, in several the second matrix subclass that the second codebook set is included, chooses and the signal for needing to receive The corresponding second matrix subclass of matrix column number, and several the second squares are selected from the second matrix subclass for selecting Battle array.

Number M of the line number of each second matrix for the transmitting antenna of signalling in each second matrix subclass, row The columns of the signal matrix that number is received for receiving side signal, for example, in the first matrix subclass R1, the size of each second matrix is equal For M × 1, in the second matrix subclass R2, the size of each second matrix is M × 2, and the rest may be inferred, in the second matrix subclass Ri The size of each second matrix is M × i.

Each first matrix in first codebook set C1 has corresponding numbering, i.e., corresponding matrix identification, second code Each second matrix in this set C2 also has corresponding numbering, i.e., corresponding matrix identification.

In the embodiment of the present invention one, when receiving side signal selects several first matrixes from the first codebook set C1, can To there is following three kinds of modes：

1st, receiving side signal selects first matrix from the first codebook set C1 for pre-setting；

2nd, receiving side signal selects J the first matrix from the first codebook set C1 for pre-setting, and J is receiving side signal The columns of the signal matrix of reception；

3rd, receiving side signal selects M the first matrix from the first codebook set C1 for pre-setting.

When receiving side signal selects several second matrixes from the second codebook set C2, there can be following three kinds of modes：

1st, receiving side signal selects second matrix from the second codebook set C2 for pre-setting；

2nd, receiving side signal selects K the second matrix from the second codebook set C2 for pre-setting；

3rd, receiving side signal selects I the second matrix, I to connect for receiving side signal from the second codebook set for pre-setting The line number of the signal matrix of receipts.

In the embodiment of the present invention one, receiving side signal has following seven kinds to the mode that signalling feeds back code book：

The first feedback system：Receiving side signal selects first square from the first codebook set C1 for pre-setting Battle array, selects second matrix from the second codebook set C2 for pre-setting；

Second feedback system：Receiving side signal selects J the first matrix from the first codebook set C1 for pre-setting, Second matrix is selected from the second codebook set C2 for pre-setting；

The third feedback system：Receiving side signal selects first square from the first codebook set C1 for pre-setting Battle array, selects K the second matrix from the second codebook set C2 for pre-setting；

4th kind of feedback system：Receiving side signal selects J the first matrix from the first codebook set C1 for pre-setting, K the second matrix is selected from the second codebook set C2 for pre-setting；

5th kind of feedback system：Receiving side signal selects M the first matrix from the first codebook set C1 for pre-setting, Second matrix is selected from the second codebook set C2 for pre-setting；

6th kind of feedback system：Receiving side signal selects first square from the first codebook set C1 for pre-setting Battle array, selects I the second matrix from the second codebook set C2 for pre-setting；

7th kind of feedback system：Receiving side signal selects M the first matrix from the first codebook set C1 for pre-setting, I the second matrix is selected from the second codebook set C2 for pre-setting.

Step 32, the matrix identification of the matrix identification of the first matrix selected and the second matrix selected is sent to Signalling.

Wherein, receiving side signal can be, but not limited to periodically carry out code book feedback, the first codebook set C1 and second Codebook set C2 correspondence identical feedback cycles, for example, feed back the matrix mark of the matrix identification and the second matrix of the first matrix simultaneously Know, the first codebook set C1 and the second codebook set C2 can also correspond to different feedback cycles, for example, the first codebook set C1 Feedback cycle can be the second codebook set C2 feedback cycle integral multiple.

If receiving side signal have selected first matrix, the matrix identification of first matrix for selecting is sent to into letter Each first matrix for selecting, if having selected M or J the first matrix, is distinguished corresponding matrix identification and is sent out by number sender Signalling is given, in the same manner, if receiving side signal have selected second matrix, by the matrix of second matrix for selecting Mark is sent to signalling, if having selected K or I the second matrix, each second matrix for selecting is corresponded to respectively Matrix identification be sent to signalling.

If the first codebook set C1 and the second codebook set C2 keep constant in whole 3D mimo systems, signal Recipient and signalling can prestore the first codebook set C1 and the second codebook set C2, subsequently directly can use The the first codebook set C1 and the second codebook set C2 for prestoring carries out code book feedback；Additionally, receiving side signal and signal are sent out The side of sending regularly can also obtain the first codebook set C1 and the second codebook set C2 from the network equipment.

Additionally, in the embodiment of the present invention one, receiving side signal can carry out code book feedback based on full bandwidth, it is also possible to be based on Subband carries out code book feedback, and pre-setting carries out each subband of code book feedback, and receiving side signal selects the first matrix and the second square During battle array, for default each subband, several the first matrixes are selected from the first codebook set for pre-setting respectively, and Several second matrixes are selected from the second codebook set for pre-setting, then for default each subband, respectively by pin The matrix identification of the matrix identification of the first matrix selected to the subband and the second matrix selected is sent to signal transmission Side.

Embodiment two

It is corresponding with the code book feedback method in the 3D mimo systems that the embodiment of the present invention one is proposed, the embodiment of the present invention two Propose the signal receiving device in a kind of 3D mimo systems, its structure as shown in figure 4, including：

First matrix select unit 41, for selecting several first matrixes from the first codebook set for pre-setting；

Second matrix select unit 42, for selecting several second matrixes from the second codebook set for pre-setting；

Transmitting element 43, for the matrix identification of the first matrix of selecting the first matrix select unit 41 and the second square The matrix identification of the second matrix that battle array select unit 42 is selected is sent to sender unit.

It is preferred that including several the first matrix subclass in the first codebook set, each first matrix subclass is included Several first matrixes, each first matrix subclass are corresponding with the line number of the signal matrix that receiving side signal is received respectively, the Each transmitting antenna number of antenna element that include of the line number of each first matrix for signalling in one matrix subclass, Columns is the line number of the signal matrix that receiving side signal is received；

First matrix select unit 41 is specifically included：

First matrix subclass chooses subelement, for needing the signal matrix for receiving according to the signal receiving device Line number, in several the first matrix subclass that the first codebook set is included, chooses the row with the signal matrix for needing to receive The corresponding first matrix subclass of number；

First matrix selects subelement, for choosing the first matrix subset that subelement is selected from the first matrix subclass Several the first matrixes are selected in conjunction.

It is preferred that including several the second matrix subclass in the second codebook set, each second matrix subclass is included Several second matrixes, each second matrix subclass are corresponding with the columns of the signal matrix that receiving side signal is received respectively, the Number of the line number of each second matrix for the transmitting antenna of signalling in two matrix subclass, columns are connect for receiving side signal The columns of the signal matrix of receipts；

Second matrix select unit 42, specifically includes：

Second matrix subclass chooses subelement, for needing the signal matrix for receiving according to the signal receiving device Columns, in several the second matrix subclass that the second codebook set is included, chooses the row with the signal matrix for needing to receive The corresponding second matrix subclass of number；

Second matrix selects subelement, for choosing the second matrix subset that subelement is selected from the second matrix subclass Several the second matrixes are selected in conjunction.

It is preferred that the first matrix select unit 41, specifically for for default each subband, respectively from pre-setting Several the first matrixes are selected in first codebook set；

Second matrix select unit 42, specifically for for default each subband, respectively from the second code for pre-setting Several the second matrixes are selected in this set；

Transmitting element 43, specifically for for default each subband, being directed to the son by the first matrix select unit respectively The square of the second matrix that the matrix identification of the first matrix that band is selected and the second matrix select unit are selected for the subband Battle array mark is sent to signalling.

It is preferred that the first matrix select unit 41, specifically for selecting one from the first codebook set for pre-setting First matrix；

Second matrix select unit 42, specifically for selecting second square from the second codebook set for pre-setting Battle array.

It is preferred that the first matrix select unit 41, specifically for selecting J the from the first codebook set for pre-setting One matrix, J are the columns of the signal matrix that receiving side signal is received；

Second matrix select unit 42, specifically for selecting K the second matrix from the second codebook set for pre-setting, K is the number of the antenna element that each antenna of signalling is included.

It is preferred that the first matrix select unit 41, specifically for selecting M the from the first codebook set for pre-setting One matrix, numbers of the M for the transmitting antenna of signalling；

Second matrix select unit 42, specifically for selecting I the second matrix from the second codebook set for pre-setting, I is the line number of the signal matrix that receiving side signal is received.

Embodiment three

As shown in figure 5, the signaling method flow process in a kind of 3D mimo systems proposed for the embodiment of the present invention three Figure, its concrete handling process are as follows：

Step 51, when the signalling in 3D mimo systems is needed to receiving side signal sending signal, from pre-setting The first codebook set in select several the first matrixes, select several second squares from the second codebook set for pre-setting Battle array；

Wherein, the signalling in 3D mimo systems can be base station, then corresponding receiving side signal is UE, is believed Number sender can also be UE, then corresponding receiving side signal is base station.

The first codebook set C1 in the first codebook set and the embodiment of the present invention one mentioned in the embodiment of the present invention three Unanimously, the second codebook set C2 mono- in the second codebook set and the embodiment of the present invention one mentioned in the embodiment of the present invention three Cause, repeat no more here.

In the embodiment of the present invention three, the signalling in 3D mimo systems is being needed to receiving side signal sending signal When, directly can select several the first matrixes in default first codebook set C1, for example select first matrix or Select J the first matrix or select M the first matrix, J is the row of the signal matrix that signalling is sent to receiving side signal Number, wherein, it is that receiving side signal selects the first matrix that signalling can take the mode that timesharing is chosen, for example, in D0 Carve, if the line number of the signal matrix for sending is I, the 1st is selected from i-th the first matrix subclass of the first codebook set First matrix, at the D1 moment, if the line number of the signal matrix for sending is I, from the first matrix of i-th of the first codebook set The 2nd the first matrix is selected in set, the rest may be inferred, at the Ds moment, if the line number of the signal matrix for sending is I, from first (s-1) individual first matrix is selected in i-th the first matrix subclass of codebook set.In the same manner, the signal in 3D mimo systems Sender directly can select several in default second codebook set C2 when needing to receiving side signal sending signal Second matrix, for example, select second matrix or select I the second matrix or select K the second matrix, and I is signalling The line number of the signal matrix sent to receiving side signal, wherein, it is signal that signalling can take the mode that timesharing is chosen Recipient selects the second matrix, for example, at the D0 moment, if the columns of the signal matrix for sending is J, from the second codebook set The 1st the second matrix is selected in j-th the second matrix subclass, at the D1 moment, if the columns of the signal matrix for sending is J, The 2nd the second matrix is selected from j-th the second matrix subclass of the second codebook set, the rest may be inferred, at the Ds moment, if sending out The columns of the signal matrix sent is J, then select (s-1) individual the from j-th the second matrix subclass of the second codebook set Two matrixes.

In addition the embodiment of the present invention three is also, it has been proposed that signalling can also first receive several of receiving side signal feedback The matrix identification of the matrix identification of the first matrix and the second matrix, then when needing to receiving side signal sending signal, root According to the matrix identification of several the first matrixes for receiving, corresponding number is selected from the first codebook set for pre-setting First matrix, and according to the matrix identification of several the second matrixes for receiving, from the second codebook set for pre-setting Select the second matrix of corresponding number.Receiving side signal in 3DMIMO systems feeds back the square of the first matrix to signalling The mode of battle array mark and the matrix identification for feeding back the second matrix is consistent with the mode that the embodiment of the present invention one is mentioned, here no longer Repeat.

In the embodiment of the present invention three, the matrix identification that signalling can directly according to the first matrix for receiving, Corresponding first matrix of matrix identification of the first matrix for receiving is selected in first codebook set C1, if receiving side signal feedback The matrix identification of one the first matrix, then signalling select the matrix identification for receiving in the first codebook set C1 Corresponding first matrix, if receiving side signal has fed back the matrix identification of J or M the first matrix, signalling is directed to Each matrix identification for receiving, selects corresponding first matrix of the matrix identification respectively in the first codebook set C1；Signal Sender directly according to the matrix identification of the second matrix for receiving can also select what is received in the second codebook set C2 Corresponding second matrix of matrix identification of the second matrix, if receiving side signal has fed back the matrix identification of second matrix, Signalling selects corresponding second matrix of the matrix identification for receiving in the second codebook set C2, if receiving side signal The matrix identification of I or K the second matrix is fed back, then signalling exists respectively for each matrix identification for receiving Corresponding second matrix of the matrix identification is selected in second codebook set C2.Additionally, signalling select the first matrix and During the second matrix, not only according to the matrix identification of receiving side signal feedback, can also synthesis other factors (such as current system shape The matrix identification of state or other receiving side signals feedback) selecting the first matrix from the first codebook set C1 and from second code The second matrix is selected in this set C2.

In the embodiment of the present invention three, when signalling receives the matrix identification of the first matrix of receiving side signal feedback, The matrix identification of several the first matrixes that receiving side signal is fed back respectively for default each subband can be received, now signal Sender is for needing each Physical Resource Block (PRB, the Physical Resource to receiving side signal sending signal Block), matrix identification of the receiving side signal for several the first matrixes of the affiliated subband feedbacks of the PRB is determined respectively, and root According to the matrix identification of the first matrix determined, corresponding number first is selected from the first codebook set C1 for pre-setting Matrix；In the same manner, when signalling receives the matrix identification of the second matrix of receiving side signal feedback, signal reception can be received The matrix identification of several the second matrixes that policy is fed back respectively to default each subband, now signalling for need to Each PRB of receiving side signal sending signal, determine respectively receiving side signal for the affiliated subband feedbacks of the PRB several the The matrix identification of two matrixes, and according to the matrix identification of the second matrix determined, from the second codebook set C2 for pre-setting In select corresponding number the second matrix；When to needing the signal matrix for being sent to receiving side signal to be weighted process, For needing each PRB to receiving side signal sending signal, basis is directed to first that the PRB is selected to signalling respectively Matrix and the second matrix, to needing the signal matrix for being sent to receiving side signal to be weighted process in the PRB.

In the embodiment of the present invention three, signalling selects the first matrix and the mode of the second matrix to have following seven kinds：

The first selection mode：Receiving side signal selects first square from the first codebook set C1 for pre-setting Battle array, selects second matrix from the second codebook set C2 for pre-setting；

Second selection mode：Receiving side signal selects J the first matrix from the first codebook set C1 for pre-setting, Second matrix is selected from the second codebook set C2 for pre-setting；

The third selection mode：Receiving side signal selects first square from the first codebook set C1 for pre-setting Battle array, selects K the second matrix from the second codebook set C2 for pre-setting；

4th kind of selection mode：Receiving side signal selects J the first matrix from the first codebook set C1 for pre-setting, K the second matrix is selected from the second codebook set C2 for pre-setting；

5th kind of selection mode：Receiving side signal selects M the first matrix from the first codebook set C1 for pre-setting, Second matrix is selected from the second codebook set C2 for pre-setting；

6th kind of selection mode：Receiving side signal selects first square from the first codebook set C1 for pre-setting Battle array, selects I the second matrix from the second codebook set C2 for pre-setting；

7th kind of selection mode：Receiving side signal selects M the first matrix from the first codebook set C1 for pre-setting, I the second matrix is selected from the second codebook set C2 for pre-setting.

Step 52, according to several first matrixes for selecting and several second matrixes, connects to needing to be sent to signal The signal matrix of debit is weighted process；

If the line number that the size for needing the signal matrix for being sent to receiving side signal is I × J, i.e. signal matrix is I, columns For J, the size of the first matrix in the first codebook set C1 is K × I, and the size of the second matrix in the second codebook set C2 is M×J。

In the embodiment of the present invention three, signalling is weighted place to needing the signal matrix for being sent to receiving side signal The mode of reason has following eight kinds：

The first processing mode：Signalling selects first matrix from the first codebook set C1 for pre-setting W, selects second matrix V from the second codebook set C2 for pre-setting, needs to be sent to the signal square of receiving side signal Battle array is S, wherein：

W_iI-th row vector of the first matrix W for selecting, the first matrix W have K row vector, S_jFor signal matrix J-th column vector of S, signal matrix S have J column vector.

Now signalling passes through following manner to needing signal matrix S for being sent to receiving side signal to be weighted place Reason：

Wherein, V^HFor the associate matrix of the second matrix V.

By above-mentioned processing mode to needing signal matrix S for being sent to receiving side signal obtain after being weighted process To K × M signal.

Second processing mode：Signalling selects J the first matrix from the first codebook set C1 for pre-setting, It is designated as W₁..., W_j... W_J, j=1 ..., J, one the second matrix V of selection from the second codebook set C2 for pre-setting, The signal matrix for being sent to receiving side signal is needed to be S, wherein：

W_{J, i}For j-th first matrix Ws selected_jI-th row vector, the first matrix W_jTotal K row vector, S_jFor J-th column vector of signal matrix S, signal matrix S have J column vector.

Wherein, V^HFor the associate matrix of the second matrix V.

The third processing mode：Signalling selects first matrix from the first codebook set C1 for pre-setting W, selects K the second matrix V from the second codebook set C2 for pre-setting, is designated as V₁..., V_i... V_K, i=1 ..., K, The signal matrix for being sent to receiving side signal is needed to be S, wherein：

Wherein, V_i ^HFor i-th second matrix Vs_iAssociate matrix.

4th kind of processing mode：Signalling selects J the first matrix from the first codebook set C1 for pre-setting W, is designated as W₁..., W_j... W_J, j=1 ..., J, K the second matrix V of selection from the second codebook set C2 for pre-setting, It is designated as V₁..., V_i... V_K, i=1 ..., K, the signal matrix for needing to be sent to receiving side signal are S, wherein：

Wherein, V_i ^HFor i-th second matrix Vs_iAssociate matrix.

5th kind of processing mode：Signalling selects first matrix from the first codebook set C1 for pre-setting W, selects second matrix V from the second codebook set C2 for pre-setting, needs to be sent to the signal square of receiving side signal Battle array is S, wherein：

V_jJ-th row vector of the second matrix V for selecting, the second matrix V have M row vector,For needing to send To the transposition of i-th column vector of signal matrix S of receiving side signal, signal matrix S has J column vector.

Wherein, V_j ^HFor the conjugate transpose of j-th row vector of the second matrix V.

6th kind of processing mode：Signalling selects M the first matrix from the first codebook set C1 for pre-setting W, is designated as W₁..., W_j... W_M, j=1 ..., M, one the second matrix of selection from the second codebook set C2 for pre-setting V, needs the signal matrix for being sent to receiving side signal to be S, wherein：

7th kind of processing mode：Signalling selects first matrix from the first codebook set C1 for pre-setting W, selects I the second matrix V from the second codebook set C2 for pre-setting, is designated as V₁..., V_i... V_I, i=1 ..., I, The signal matrix for being sent to receiving side signal is needed to be S, wherein：

V_{I, j}For i-th second matrix Vs selected_iJ-th row vector, the second matrix V_iTotal M row vector,For The transposition of i-th column vector of signal matrix S for being sent to receiving side signal, signal matrix S is needed to have J column vector.

Wherein, V_{I, j} ^HFor i-th second matrix Vs_iJ-th row vector conjugate transpose.

8th kind of processing mode：Signalling selects M the first matrix from the first codebook set C1 for pre-setting, It is designated as W₁..., W_j... W_M, j=1 ..., M, I the second matrix of selection, note from the second codebook set C2 for pre-setting For V₁..., V_i... V_I, i=1 ..., I, the signal matrix for needing to be sent to receiving side signal are S, wherein：

Step 53, each signal obtained after weighting is processed are sent to the receiving side signal.

Each signal in the K × M signal that signalling is obtained after processing for weighting, determines signal correspondence respectively Transmitting antenna, and determine the corresponding antenna element of the signal in the antenna element that the transmitting antenna determined is included, and The receiving side signal is sent the signal to by the antenna element determined.

Additionally, the embodiment of the present invention three is proposed, if the signal of the multiple antenna element transmission on same transmitting antenna All the time it is fixed relationship, then equally can regards these antenna element for a virtual/logical antenna a period of time as, therefore this The number K of the antenna element in inventive embodiments three can be the number in physical antenna a period of time, or virtual/logical antenna The number in a period of time Such scheme now can be still adopted, is simply usedTo replace K.

From above-mentioned processing procedure, in embodiment of the present invention technical scheme, first is arranged for 3D mimo systems in advance Codebook set and the second codebook set, the first codebook set include default several first matrixes, and the second codebook set is included Default several second matrixes, when the signalling in 3D mimo systems is needed to receiving side signal sending signal, from Several the first matrixes are selected in one codebook set, select several second squares from the second codebook set for pre-setting Battle array, and according to several first matrixes and several second matrixes selected, to needing to be sent to the signal of receiving side signal Matrix is weighted process, and each signal obtained after then processed weighting is sent to the receiving side signal.Therefore, this Inventive embodiments propose a kind of concrete reality of transmission signal between signalling and receiving side signal in 3D mimo systems Existing scheme, can be effectively reduced the expense of code book feedback, improve systematic function, reduce the overall complexity that system is realized.

Example IV

It is corresponding with the signaling method in the 3D mimo systems that the embodiment of the present invention three is proposed, the embodiment of the present invention four Propose the sender unit in a kind of 3D mimo systems, its structure as shown in fig. 6, including：

First matrix select unit 61, for needing to signal receiving device sending signal in the sender unit When, several first matrixes are selected from the first codebook set for pre-setting；

Second matrix select unit 62, for needing to signal receiving device sending signal in the sender unit When, several second matrixes are selected from the second codebook set for pre-setting；

Weighting processing unit 63, for the first matrix for being selected according to the first matrix select unit 61 and the second matrix The second matrix that select unit 62 is selected, to needing the signal stream for being sent to signal receiving device to be weighted process；

Signal transmitting unit 64, each signal for obtaining after weighting processing unit 63 is weighted process are sent to institute State signal receiving device.

It is preferred that the sender unit also includes：

First matrix identification receiving unit, in the first matrix select unit 61 from the first codebook set for pre-setting Before middle several first matrixes of selection, the matrix identification of several the first matrixes of receiving side signal feedback is received；

First matrix select unit 61, specifically for received according to the first matrix identification receiving unit several first The matrix identification of matrix, selects the first matrix of corresponding number from the first codebook set for pre-setting；

Second matrix identification receiving unit, in the second matrix select unit 62 from the second codebook set for pre-setting Before middle several second matrixes of selection, the matrix identification of several the second matrixes of receiving side signal feedback is received；

Second matrix select unit 62, specifically for received according to the second matrix identification receiving unit several second The matrix identification of matrix, selects the second matrix of corresponding number from the second codebook set for pre-setting.

More preferably, the first matrix identification receiving unit, specifically for receiving receiving side signal for default each subband point The matrix identification of several the first matrixes not fed back；

First matrix select unit 61, specifically for for needing each PRB to receiving side signal sending signal, difference Determine matrix identification of the receiving side signal for several the first matrixes of the PRB affiliated subband feedbacks, and according to determining The matrix identification of the first matrix, selects the first matrix of corresponding number from the first codebook set for pre-setting；

Second matrix identification receiving unit, specifically for receiving what receiving side signal was fed back respectively for default each subband The matrix identification of several the second matrixes；

Second matrix select unit 62, specifically for for needing each PRB to receiving side signal sending signal, difference Determine matrix identification of the receiving side signal for several the second matrixes of the PRB affiliated subband feedbacks, and according to determining The matrix identification of the second matrix, selects the second matrix of corresponding number from the second codebook set for pre-setting；

Weighting processing unit 63, specifically for for needing each PRB to receiving side signal sending signal, respectively basis What the first matrix and the second matrix select unit that the first matrix select unit is selected for the PRB was selected for the PRB Second matrix, to needing the signal matrix for being sent to receiving side signal to be weighted process in the PRB.

It is preferred that signal transmitting unit, specifically for the K × M letter for obtaining after weighting processing unit weighting process Each signal in number, determines the corresponding transmitting antenna of the signal, and the antenna array included in the transmitting antenna determined respectively The corresponding antenna element of the signal is determined in son, and the signal is sent the signal to by the antenna element determined receive Side, K are the number of the antenna element that each transmitting antenna of signalling is included, and M is the transmitting antenna of signalling Number.

It is preferred that the first matrix select unit 61, specifically for selecting one from the first codebook set for pre-setting First matrix, the number K of antenna element that includes of each transmitting antenna of the line number of the first matrix for signalling, columns is Line number I of the signal matrix that receiving side signal is received；

Second matrix select unit 62, specifically for selecting second square from the second codebook set for pre-setting Battle array, the line number of the second matrix are the number M of the transmitting antenna of signalling, and columns is the signal matrix that receiving side signal is received Columns J；

Weighting processing unit 63 is by following manner to needing the signal matrix for being sent to receiving side signal to be weighted place Reason：

Wherein, W_iI-th row vector of the first matrix for selecting；

V is the second matrix selected, V^HFor the associate matrix of the second matrix V；

S_jFor needing j-th column vector of the signal matrix for being sent to receiving side signal.

It is preferred that the first matrix select unit 61, specifically for selecting J the from the first codebook set for pre-setting One matrix, the number K of antenna element that includes of each transmitting antenna of the line number of the first matrix for signalling, columns are letter Line number I of the signal matrix that number recipient receives；

Wherein, W_{J, i}I-th row vector of j-th first matrixes for selecting；

Second matrix select unit 62, specifically for selecting K the second matrix from the second codebook set for pre-setting, Number M of the line number of the second matrix for the transmitting antenna of signalling, columns are the signal matrix that receiving side signal is received Columns J；

Wherein, W_iI-th row vector of the first matrix for selecting；

V_iFor i-th second matrixes selected, V_i ^HFor i-th second matrix Vs_iAssociate matrix；

Wherein, W_{J, i}I-th row vector of j-th first matrixes for selecting；

Wherein, W is the first matrix selected；

V is the second matrix selected, V_j ^HFor the conjugate transpose of j-th row vector of the second matrix V；For needing to send To the transposition of i-th column vector of the signal matrix of receiving side signal.

It is preferred that the first matrix select unit 61, specifically for selecting M the from the first codebook set for pre-setting One matrix, the number K of antenna element that includes of each transmitting antenna of the line number of the first matrix for signalling, columns are letter Line number I of the signal matrix that number recipient receives；

Wherein, W_jFor j-th first matrixes selected；

Second matrix select unit 62, specifically for selecting I the second matrix from the second codebook set for pre-setting, Number M of the line number of the second matrix for the transmitting antenna of signalling, columns are the signal matrix that receiving side signal is received Columns J；

Wherein, W is the first matrix selected；

V_{I, j}J-th row vector of i-th second matrixes for selecting, V_{I, j} ^HFor j-th row of i-th second matrixes The conjugate transpose of vector；

For needing the transposition of i-th column vector of the signal matrix for being sent to receiving side signal.

First matrix select unit 62, specifically for selecting I the second matrix from the second codebook set for pre-setting, Number M of the line number of the second matrix for the transmitting antenna of signalling, columns are the signal matrix that receiving side signal is received Columns J；

Wherein, W_jFor j-th first matrixes selected；

Obviously, those skilled in the art can carry out the essence of various changes and modification without deviating from the present invention to the present invention God and scope.So, if these modifications of the present invention and modification belong to the scope of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to comprising these changes and modification.

Claims

1. the code book feedback method in a kind of three-dimensional multiple-input and multiple-output 3D mimo systems, it is characterised in that include：

Receiving side signal in 3D mimo systems selects several first matrixes from the first codebook set for pre-setting, with And several second matrixes are selected from the second codebook set for pre-setting；

The matrix identification of the matrix identification of the first matrix selected and the second matrix selected is sent to into signalling；

Wherein, several the first matrix subclass are included in the first codebook set, and each first matrix subclass includes several First matrix, each first matrix subclass are corresponding with the line number of the signal matrix that receiving side signal is received respectively, the first matrix Each transmitting antenna number of antenna element that include of the line number of each first matrix for signalling in subclass, columns is The line number of the signal matrix that receiving side signal is received；Receiving side signal selects several from the first codebook set for pre-setting First matrix, specifically includes：The line number of the signal matrix that receiving side signal is received as needed, includes in the first codebook set In several the first matrix subclass, the first matrix subclass corresponding with the line number of the signal matrix for needing to receive is chosen；And Several the first matrixes are selected from the first matrix subclass for selecting.

2. the method for claim 1, it is characterised in that include several the second matrix subsets in the second codebook set Close, each second matrix subclass includes several second matrixes, each second matrix subclass is connect with receiving side signal respectively The columns correspondence of the signal matrix of receipts, transmitting antenna of the line number of each second matrix for signalling in the second matrix subclass Number, columns be receiving side signal receive signal matrix columns；

Receiving side signal selects several second matrixes from the second codebook set for pre-setting, and specifically includes：

The columns of the signal matrix that receiving side signal is received as needed, in several second matrixes that the second codebook set is included In subclass, the second matrix subclass corresponding with the columns of the signal matrix for needing to receive is chosen；And

Several the second matrixes are selected from the second matrix subclass for selecting.

3. the code book feedback method in a kind of three-dimensional multiple-input and multiple-output 3D mimo systems, it is characterised in that include：

Wherein, receiving side signal selects several first matrixes from the first codebook set for pre-setting, and specifically includes；Signal Recipient selects J the first matrix from the first codebook set for pre-setting, and J is the signal matrix that receiving side signal is received Columns；Receiving side signal selects several second matrixes from the second codebook set for pre-setting, and specifically includes：Signal is received Side selects second matrix from the second codebook set for pre-setting.

4. the code book feedback method in a kind of three-dimensional multiple-input and multiple-output 3D mimo systems, it is characterised in that include：

Wherein, receiving side signal selects several first matrixes from the first codebook set for pre-setting, and specifically includes；Signal Recipient selects first matrix from the first codebook set for pre-setting；Receiving side signal is from the second code for pre-setting Several the second matrixes are selected in this set, are specifically included：Receiving side signal selects K from the second codebook set for pre-setting Individual second matrix, K are the number of the antenna element that each antenna of signalling is included.

5. the code book feedback method in a kind of three-dimensional multiple-input and multiple-output 3D mimo systems, it is characterised in that include：3D MIMO Receiving side signal in system selects several first matrixes from the first codebook set for pre-setting, and from pre-setting The second codebook set in select several the second matrixes；By the matrix identification of the first matrix selected and second for selecting The matrix identification of matrix is sent to signalling；

Wherein, receiving side signal selects several first matrixes from the first codebook set for pre-setting, and specifically includes；Signal Recipient selects J the first matrix from the first codebook set for pre-setting, and J is the signal matrix that receiving side signal is received Columns；Receiving side signal selects several second matrixes from the second codebook set for pre-setting, and specifically includes：Signal is received Side selects K the second matrix from the second codebook set for pre-setting, and K is the antenna that each antenna of signalling is included The number in a period of time.

6. the code book feedback method in a kind of three-dimensional multiple-input and multiple-output 3D mimo systems, it is characterised in that include：

Wherein, receiving side signal selects several first matrixes from the first codebook set for pre-setting, and specifically includes；Signal Recipient selects M the first matrix, numbers of the M for the transmitting antenna of signalling from the first codebook set for pre-setting Mesh；Receiving side signal selects several second matrixes from the second codebook set for pre-setting, and specifically includes：Receiving side signal Second matrix is selected from the second codebook set for pre-setting.

7. the code book feedback method in a kind of three-dimensional multiple-input and multiple-output 3D mimo systems, it is characterised in that include：

Wherein, receiving side signal selects several first matrixes from the first codebook set for pre-setting, and specifically includes；Signal Recipient selects first matrix from the first codebook set for pre-setting；Receiving side signal is from the second code for pre-setting Several the second matrixes are selected in this set, are specifically included：Receiving side signal selects I from the second codebook set for pre-setting Individual second matrix, I are the line number of the signal matrix that receiving side signal is received.

8. the code book feedback method in a kind of three-dimensional multiple-input and multiple-output 3D mimo systems, it is characterised in that include：3D MIMO Receiving side signal in system selects several first matrixes from the first codebook set for pre-setting, and from pre-setting The second codebook set in select several the second matrixes；By the matrix identification of the first matrix selected and second for selecting The matrix identification of matrix is sent to signalling；

Wherein, receiving side signal selects several first matrixes from the first codebook set for pre-setting, and specifically includes；Signal Recipient selects M the first matrix, numbers of the M for the transmitting antenna of signalling from the first codebook set for pre-setting Mesh；Receiving side signal selects several second matrixes from the second codebook set for pre-setting, and specifically includes：Receiving side signal I the second matrix is selected from the second codebook set for pre-setting, and I is the line number of the signal matrix that receiving side signal is received.

9. the signal receiving device in a kind of three-dimensional multiple-input and multiple-output 3D mimo systems, it is characterised in that include：

First matrix select unit, for selecting several first matrixes from the first codebook set for pre-setting；

Second matrix select unit, for selecting several second matrixes from the second codebook set for pre-setting；

Transmitting element, the matrix identification of the first matrix and the second matrix for the first matrix select unit is selected select single The matrix identification of the second matrix that unit is selected is sent to sender unit；

Wherein, several the first matrix subclass are included in the first codebook set, and each first matrix subclass includes several First matrix, each first matrix subclass are corresponding with the line number of the signal matrix that receiving side signal is received respectively, the first matrix Each transmitting antenna number of antenna element that include of the line number of each first matrix for signalling in subclass, columns is The line number of the signal matrix that receiving side signal is received；

First matrix select unit is specifically included：First matrix subclass chooses subelement, fills for being received according to the signal Put need receive signal matrix line number, in several the first matrix subclass that the first codebook set is included, choose with Need the corresponding first matrix subclass of line number of the signal matrix of reception；First matrix selects subelement, for from the first square A period of time set selects several the first matrixes in choosing the first matrix subclass that subelement is selected.

10. signal receiving device as claimed in claim 9, it is characterised in that in the second codebook set comprising several second Matrix subclass, each second matrix subclass include several second matrixes, each second matrix subclass respectively with signal The columns correspondence of the signal matrix that recipient receives, in the second matrix subclass, the line number of each second matrix is signalling The number of transmitting antenna, columns are the columns of the signal matrix that receiving side signal is received；

Second matrix select unit, specifically includes：

Second matrix subclass chooses subelement, for needing the row of the signal matrix for receiving according to the signal receiving device Number, in several the second matrix subclass that the second codebook set is included, chooses the columns with the signal matrix for needing to receive Corresponding second matrix subclass；

Second matrix selects subelement, for choosing in the second matrix subclass for selecting of subelement from the second matrix subclass Select several the second matrixes.

11. signal receiving devices as claimed in claim 9, it is characterised in that the first matrix select unit, specifically for being directed to Default each subband, selects several the first matrixes respectively from the first codebook set for pre-setting；

Second matrix select unit, specifically for for default each subband, respectively from the second codebook set for pre-setting Middle several second matrixes of selection；

Transmitting element, specifically for for default each subband, selecting the first matrix select unit for the subband respectively The matrix identification of the second matrix that the matrix identification of the first matrix for going out and the second matrix select unit are selected for the subband It is sent to signalling.

Signaling method in a kind of 12. three-dimensional multiple-input and multiple-output 3D mimo systems, it is characterised in that include：

When signalling in 3D mimo systems is needed to receiving side signal sending signal, from the first code book for pre-setting Several the first matrixes are selected in set, select several second matrixes from the second codebook set for pre-setting；

According to several first matrixes and several second matrixes for selecting, to needing to be sent to the signal of receiving side signal Matrix is weighted process；And

The each signal obtained after weighting is processed is sent to the receiving side signal;

Wherein, before signalling selects several first matrixes from the first codebook set for pre-setting, also include：Letter Number sender receives the matrix identification of several the first matrixes of receiving side signal feedback；Signalling is from for pre-setting Several the first matrixes are selected in one codebook set, are specifically included：According to the matrix identification of several the first matrixes for receiving, The first matrix of corresponding number is selected from the first codebook set for pre-setting；Signalling is from second for pre-setting Before selecting several second matrixes in codebook set, also include：Signalling receives several of receiving side signal feedback The matrix identification of the second matrix；Signalling selects several second matrixes from the second codebook set for pre-setting, tool Body includes：According to the matrix identification of several the second matrixes for receiving, select from the second codebook set for pre-setting The second matrix of corresponding number.

13. methods as claimed in claim 12, it is characterised in that signalling receives several of receiving side signal feedback The matrix identification of the first matrix, specifically includes：

Signalling receives the matrix mark of several the first matrixes that receiving side signal is fed back respectively for default each subband Know；

According to the matrix identification of several the first matrixes for receiving, correspondence is selected from the first codebook set for pre-setting The first matrix of number, specifically includes：

For needing each Physical Resource Block PRB to receiving side signal sending signal, respectively, signalling determines that signal connects Matrix identification of the debit for several the first matrixes of the affiliated subband feedbacks of the PRB, and according to the first matrix determined Matrix identification, selects the first matrix of corresponding number from the first codebook set for pre-setting；

Signalling receives the matrix identification of several the second matrixes of receiving side signal feedback, specifically includes：

Signalling receives the matrix mark of several the second matrixes that receiving side signal is fed back respectively for default each subband Know；

According to the matrix identification of several the second matrixes for receiving, select right from the second codebook set for pre-setting The second matrix of number is answered, is specifically included：

Signalling determines receiving side signal for being somebody's turn to do for needing each PRB to receiving side signal sending signal, respectively The matrix identification of several the second matrixes of the affiliated subband feedbacks of PRB, and according to the matrix identification of the second matrix determined, from The second matrix of corresponding number is selected in the second codebook set for pre-setting；

According to several first matrixes and several second matrixes for selecting, to needing to be sent to the signal square of receiving side signal Battle array is weighted process, specifically includes：

Signalling for needing each PRB to receiving side signal sending signal, select for the PRB respectively by basis First matrix and the second matrix, to needing the signal matrix for being sent to receiving side signal to be weighted process in the PRB.

14. methods as claimed in claim 12, it is characterised in that signalling is from the first codebook set for pre-setting Several the first matrixes are selected, is specifically included：

Signalling selects first matrix from the first codebook set for pre-setting, and the line number of the first matrix is signal The number K of the antenna element that each transmitting antenna of sender is included, columns are the row of the signal matrix that receiving side signal is received Number I；

Signalling selects several second matrixes from the second codebook set for pre-setting, and specifically includes：

Signalling selects second matrix from the second codebook set for pre-setting, and the line number of the second matrix is signal The number M of the transmitting antenna of sender, columns are the columns J of the signal matrix that receiving side signal is received；

By following manner to needing the signal matrix for being sent to receiving side signal to be weighted process：

Wherein, W_iI-th row vector of the first matrix for selecting；

15. methods as claimed in claim 12, it is characterised in that signalling is from the first codebook set for pre-setting Several the first matrixes are selected, is specifically included：

Signalling selects J the first matrix from the first codebook set for pre-setting, and the line number of the first matrix is signal The number K of the antenna element that each transmitting antenna of sender is included, columns are the row of the signal matrix that receiving side signal is received Number I；

Wherein, W_j,iI-th row vector of j-th first matrixes for selecting；

16. methods as claimed in claim 12, it is characterised in that signalling is from the first codebook set for pre-setting Several the first matrixes are selected, is specifically included：

Signalling selects K the second matrix from the second codebook set for pre-setting, and the line number of the second matrix is signal The number M of the transmitting antenna of sender, columns are the columns J of the signal matrix that receiving side signal is received；

Wherein, W_iI-th row vector of the first matrix for selecting；

17. methods as claimed in claim 12, it is characterised in that signalling is from the first codebook set for pre-setting Several the first matrixes are selected, is specifically included：

Wherein, W_j,iI-th row vector of j-th first matrixes for selecting；

18. methods as claimed in claim 12, it is characterised in that signalling is from the first codebook set for pre-setting Several the first matrixes are selected, is specifically included：

Wherein, W is the first matrix selected；

V is the second matrix selected, V_j ^HFor the conjugate transpose of j-th row vector of the second matrix V；

19. methods as claimed in claim 12, it is characterised in that signalling is from the first codebook set for pre-setting Several the first matrixes are selected, is specifically included：

Signalling selects M the first matrix from the first codebook set for pre-setting, and the line number of the first matrix is signal The number K of the antenna element that each transmitting antenna of sender is included, columns are the row of the signal matrix that receiving side signal is received Number I；

Wherein, W_jFor j-th first matrixes selected；

20. methods as claimed in claim 12, it is characterised in that signalling is from the first codebook set for pre-setting Several the first matrixes are selected, is specifically included：

Signalling selects I the second matrix from the second codebook set for pre-setting, and the line number of the second matrix is signal The number M of the transmitting antenna of sender, columns are the columns J of the signal matrix that receiving side signal is received；

Wherein, W is the first matrix selected；

V_i,jJ-th row vector of i-th second matrixes for selecting, V_i,j ^HFor j-th row vector of i-th second matrixes Conjugate transpose；

21. methods as claimed in claim 12, it is characterised in that signalling is from the first codebook set for pre-setting Several the first matrixes are selected, is specifically included：

Wherein, W_jFor j-th first matrixes selected；

22. methods as claimed in claim 12, it is characterised in that each signal obtained after weighting is processed is sent to the letter Number recipient, specifically includes：

Each signal in the K × M signal obtained after processing for weighting, determines the corresponding transmitting antenna of the signal respectively, with And the corresponding antenna element of the signal, and the day by determining is determined in the antenna element that the transmitting antenna determined is included Linear array sends the signal to the receiving side signal, and K is the antenna element that each transmitting antenna of signalling is included Number, M for signalling transmitting antenna number.

Sender unit in a kind of 23. three-dimensional multiple-input and multiple-output 3D mimo systems, it is characterised in that include：

First matrix select unit, for when the sender unit is needed to signal receiving device sending signal, from pre- Several first matrixes are selected in the first codebook set for first arranging；

Second matrix select unit, for when the sender unit is needed to signal receiving device sending signal, from pre- Several second matrixes are selected in the second codebook set for first arranging；

Weighting processing unit, for the first matrix for being selected according to the first matrix select unit and the second matrix select unit The second matrix selected, to needing the signal stream for being sent to signal receiving device to be weighted process；

Signal transmitting unit, each signal for obtaining after weighting processing unit is weighted process are sent to the signal and connect Receiving apparatus;

Also include：First matrix identification receiving unit, in the first matrix select unit from the first code book collection for pre-setting Before selecting several first matrixes in conjunction, the matrix identification of several the first matrixes of receiving side signal feedback is received；First Matrix select unit, the matrix mark of several the first matrixes specifically for being received according to the first matrix identification receiving unit Know, select the first matrix of corresponding number from the first codebook set for pre-setting；Second matrix identification receiving unit, uses In before the second matrix select unit selects several second matrixes from the second codebook set for pre-setting, letter is received The matrix identification of several the second matrixes of number recipient feedback；Second matrix select unit, specifically for according to the second matrix The matrix identification of several the second matrixes that mark receiving unit is received, selects from the second codebook set for pre-setting The second matrix of corresponding number.

24. sender units as claimed in claim 23, it is characterised in that the first matrix identification receiving unit, it is concrete to use In the matrix identification for receiving several the first matrixes that receiving side signal is fed back respectively for default each subband；

First matrix select unit, specifically for being directed to each Physical Resource Block PRB needed to receiving side signal sending signal, Matrix identification of the receiving side signal for several the first matrixes of the affiliated subband feedbacks of the PRB is determined respectively, and according to determination The matrix identification of the first matrix for going out, selects the first matrix of corresponding number from the first codebook set for pre-setting；

Second matrix identification receiving unit, specifically for receive receiving side signal for default each subband feed back respectively it is some The matrix identification of individual second matrix；

Second matrix select unit, specifically for for needing each PRB to receiving side signal sending signal, determining letter respectively The matrix identification of number recipient for several the second matrixes of the affiliated subband feedbacks of the PRB, and according to the second square determined The matrix identification of battle array, selects the second matrix of corresponding number from the second codebook set for pre-setting；

Weighting processing unit, specifically for for needing each PRB to receiving side signal sending signal, respectively according to the first square The second square that the first matrix and the second matrix select unit that battle array select unit is selected for the PRB is selected for the PRB Battle array, to needing the signal matrix for being sent to receiving side signal to be weighted process in the PRB.

25. sender units as claimed in claim 23, it is characterised in that signal transmitting unit, specifically for for adding Each signal in the K × M signal that the weighting of power processing unit is obtained after processing, determines the corresponding transmitting antenna of the signal respectively, And determine the corresponding antenna element of the signal in the antenna element that the transmitting antenna determined is included, and by determining Antenna element sends the signal to the receiving side signal, and K is the antenna array that each transmitting antenna of signalling is included The number of son, numbers of the M for the transmitting antenna of signalling.