CN103795450A - Methods for transmitting coding indication information and determining pre-coding matrix, system and equipment - Google Patents

Abstract

The invention relates to the technical field of wireless communication and particularly a method for transmitting coding indication information and a method for determining a pre-coding matrix, a system and equipment. The objective of the invention is to solve the problem of performance reduction caused by a situation in which a codebook is directly applied to three-dimensional wave beam shaping/pre-coding technologies at present. The method for transmitting the coding indication information comprises the step that user equipment determines and transmits first pre-coding indication information, second pre-coding indication information and third pre-coding indication information, wherein the indication information is corresponding to the pre-coding matrix, wherein the pre-coding matrix is equal to a function matrix of a first component pre-coding matrix, a second component pre-coding matrix and a third component pre-coding matrix, wherein the first component pre-coding matrix is a diagonal matrix, the second component pre-coding matrix is a diagonal matrix, the third component pre-coding matrix is composed of a wave beam rotating vector, wherein the beam rotation vector is equal to the Kronecker product of two vectors. With the method for transmitting the indication information, the method for determining the pre-coding matrix, the system and the equipment of the invention adopted, the performance of the three-dimensional wave beam shaping/pre-coding technologies can be improved.

Description

Method, system and the equipment of transfer encoding indication information and definite pre-coding matrix

Technical field

The present invention relates to wireless communication technology field, particularly method, system and the equipment of a kind of transfer encoding indication information and definite pre-coding matrix.

Background technology

LTE (Long Term Evolution, Long Term Evolution) Re1-8 (version 8) system has been introduced closed loop precoding technique and has been improved spectrum efficiency.First closed loop precoding requires the set of all preserving same pre-coding matrix at base station and subscriber equipment, is called code book.Subscriber equipment estimates after channel information according to cell common pilots, selects a pre-coding matrix by certain criterion from code book.The criterion of choosing can be to maximize mutual information, maximization output Signal to Interference plus Noise Ratio etc.By the pre-coding matrix of selecting, the index in code book feeds back to base station by up channel to subscriber equipment, and this index is designated as PMI (Pre-coding Matrix Indicator, pre-coding matrix indication).The pre-coding matrix that should use this subscriber equipment just can be determined by the index value of receiving in base station.The pre-coding matrix of user equipment to report can be regarded as the quantized value of channel condition information.

In existing cellular system, base-station antenna array is generally horizontally, as depicted in figs. 1 and 2.Transmission end of base station wave beam only can be adjusted in the horizontal direction, and vertical direction is fixing angle of declination to each user, and therefore various wave beam forming/precoding techniques etc. all carry out based on horizontal direction channel information.In fact,, because wireless signal is three-dimensional propagation in space, the method for fixing angle of declination can not make the performance of system reach optimum.The wave beam adjustment of vertical direction has very important meaning for the raising of systematic function.Along with the development of antenna technology, there is the active antenna that can independently control each a period of time in industry, as shown in Figure 3 A and Figure 3 B.Adopt this aerial array, make wave beam dynamic adjustment in the vertical direction become possibility.In FDD system, will realize three-dimensional wave beam forming/precoding and need to rely on the channel condition information of user equipment to report, a kind of possible implementation is to continue to use the mode that reports based on code book always having adopted since LTE Re1-8 system.But current existing code book, for horizontal direction wave beam forming/Precoding Design, is applied directly to the decline that can cause performance in three-dimensional wave beam forming/precoding technique.

In sum, current code book is for horizontal direction wave beam forming/Precoding Design, is applied directly to the decline that can cause performance in three-dimensional wave beam forming/precoding technique.

Summary of the invention

The invention provides method, system and the equipment of a kind of transfer encoding indication information and definite pre-coding matrix, in order to solve, in prior art, to have current code book be for horizontal direction wave beam forming/Precoding Design, is applied directly to the problem that can cause hydraulic performance decline in three-dimensional wave beam forming/precoding technique.

The method of a kind of transfer encoding indication information that the embodiment of the present invention provides, comprising:

Subscriber equipment is determined the first precoding indication information, the second precoding indication information and the 3rd precoding indication information, wherein the first precoding indication information, the second precoding indication information and the 3rd precoding indication information are corresponding with pre-coding matrix, described pre-coding matrix equals the Jacobian matrix of the first component pre-coding matrix, second component pre-coding matrix and three-component pre-coding matrix, and described the first component pre-coding matrix is diagonal matrix; Described second component pre-coding matrix is diagonal matrix; Described three-component pre-coding matrix is made up of wave beam rotating vector, and it is long-pending that described wave beam rotating vector equals two vectorial Kronecker;

Described subscriber equipment sends the first precoding indication information, the second precoding indication information and the 3rd precoding indication information to network side.

The method of a kind of definite pre-coding matrix that the embodiment of the present invention provides, comprising:

Network equipment receives the first precoding indication information, the second precoding indication information and the 3rd precoding indication information from subscriber equipment;

Described network equipment, according to described the first precoding indication information, the second precoding indication information and the 3rd precoding indication information, is determined pre-coding matrix;

Wherein, the first precoding indication information, the second precoding indication information and the 3rd precoding indication information are corresponding with pre-coding matrix, described pre-coding matrix equals the Jacobian matrix of the first component pre-coding matrix, second component pre-coding matrix and three-component pre-coding matrix, and wherein said the first component pre-coding matrix is diagonal matrix; Described second component pre-coding matrix is diagonal matrix; Described three-component pre-coding matrix is made up of wave beam rotating vector, and it is long-pending that described wave beam rotating vector equals two vectorial Kronecker.

The subscriber equipment of a kind of transfer encoding indication information that the embodiment of the present invention provides, comprising:

The first determination module, for determining the first precoding indication information, the second precoding indication information and the 3rd precoding indication information, wherein the first precoding indication information, the second precoding indication information and the 3rd precoding indication information are corresponding with pre-coding matrix, described pre-coding matrix equals the Jacobian matrix of the first component pre-coding matrix, second component pre-coding matrix and three-component pre-coding matrix, and described the first component pre-coding matrix is diagonal matrix; Described second component pre-coding matrix is diagonal matrix; Described three-component pre-coding matrix is made up of wave beam rotating vector, and it is long-pending that described wave beam rotating vector equals two vectorial Kronecker;

Sending module, for sending the first precoding indication information, the second precoding indication information and the 3rd precoding indication information to network side.

The network equipment of a kind of definite pre-coding matrix that the embodiment of the present invention provides, comprising:

Receiver module, for receiving the first precoding indication information, the second precoding indication information and the 3rd precoding indication information from subscriber equipment;

The second determination module, for according to described the first precoding indication information, the second precoding indication information and the 3rd precoding indication information, determines pre-coding matrix;

Wherein, the first precoding indication information, the second precoding indication information and the 3rd precoding indication information are corresponding with pre-coding matrix, described pre-coding matrix equals the Jacobian matrix of the first component pre-coding matrix, second component pre-coding matrix and three-component pre-coding matrix, and wherein said the first component pre-coding matrix is diagonal matrix; Described second component pre-coding matrix is diagonal matrix; Described three-component pre-coding matrix is made up of wave beam rotating vector, and it is long-pending that described wave beam rotating vector equals two vectorial Kronecker.

The method of a kind of definite pre-coding matrix that the embodiment of the present invention provides, comprising:

Subscriber equipment, for determining the first precoding indication information, the second precoding indication information and the 3rd precoding indication information, send the first precoding indication information to network side, the second precoding indication information and the 3rd precoding indication information, wherein the first precoding indication information, the second precoding indication information and the 3rd precoding indication information are corresponding with pre-coding matrix, described pre-coding matrix equals the first component pre-coding matrix, the Jacobian matrix of second component pre-coding matrix and three-component pre-coding matrix, described the first component pre-coding matrix is diagonal matrix, described second component pre-coding matrix is diagonal matrix, described three-component pre-coding matrix is made up of wave beam rotating vector, and it is long-pending that described wave beam rotating vector equals two vectorial Kronecker,

Network equipment, for receiving the first precoding indication information, the second precoding indication information and the 3rd precoding indication information from subscriber equipment; According to described the first precoding indication information, the second precoding indication information and the 3rd precoding indication information, determine pre-coding matrix.

Embodiment of the present invention subscriber equipment is determined the first precoding indication information, the second precoding indication information and the 3rd precoding indication information, wherein the first precoding indication information, the second precoding indication information and the 3rd precoding indication information are corresponding with pre-coding matrix, described pre-coding matrix equals the Jacobian matrix of the first component pre-coding matrix and second component pre-coding matrix, and the first component pre-coding matrix is diagonal matrix; Second component pre-coding matrix is diagonal matrix; Three-component pre-coding matrix is made up of wave beam rotating vector, and it is long-pending that wave beam rotating vector equals two vectorial Kronecker.Because the pre-coding matrix of structure mates more with the space channel of three-dimensional wave beam forming, thereby improve the performance of three-dimensional wave beam forming/precoding technique.

Accompanying drawing explanation

Fig. 1 is horizontal dual polarized antenna schematic diagram in background technology;

Fig. 2 is horizontal linear array antenna schematic diagram in background technology;

Fig. 3 A is the dual polarized antenna schematic diagram that in background technology, horizontal two-dimension is arranged;

Fig. 3 B is the linear array antenna schematic diagram of vertical two-dimensional arrangements in background technology;

Fig. 4 is the system configuration schematic diagram that the embodiment of the present invention is determined pre-coding matrix;

Fig. 5 is the structural representation that the embodiment of the present invention is determined subscriber equipment in the system of pre-coding matrix;

Fig. 6 is the structural representation that the embodiment of the present invention is determined network equipment in the system of pre-coding matrix;

Fig. 7 is the method flow schematic diagram of embodiment of the present invention transfer encoding indication information;

Fig. 8 is the method flow schematic diagram that the embodiment of the present invention is determined pre-coding matrix.

Embodiment

Embodiment of the present invention subscriber equipment is determined the first precoding indication information, the second precoding indication information and the 3rd precoding indication information, wherein the first precoding indication information, the second precoding indication information and the 3rd precoding indication information are corresponding with pre-coding matrix, and the first component pre-coding matrix is diagonal matrix; Second component pre-coding matrix is diagonal matrix; Three-component pre-coding matrix is made up of wave beam rotating vector, and it is long-pending that wave beam rotating vector equals two vectorial Kronecker (Crow Buddhist nun gram).Because the pre-coding matrix of structure mates more with the space channel of three-dimensional wave beam forming, thereby improve the performance of three-dimensional wave beam forming/precoding technique.

Below in conjunction with Figure of description, the embodiment of the present invention is described in further detail.

In declarative procedure below, first implement to describe from the cooperation of network side and user equipment side, finally describe from the enforcement of network side and user equipment side respectively, but this does not also mean that the two must coordinate enforcement, in fact, separate while implementing when network side and user equipment side, also solved respectively in network side, the existing problem of user equipment side, when just the two is combined with, can obtain better technique effect.

As shown in Figure 4, the embodiment of the present invention determines that the system of pre-coding matrix comprises: subscriber equipment 10 and network equipment 20.

Subscriber equipment 10, for determining the first precoding indication information, the second precoding indication information and the 3rd precoding indication information, send the first precoding indication information and the second precoding indication information to network side, wherein the first precoding indication information, the second precoding indication information and the 3rd precoding indication information are corresponding with pre-coding matrix, pre-coding matrix equals the Jacobian matrix of the first component pre-coding matrix, second component pre-coding matrix and three-component pre-coding matrix, and the first component pre-coding matrix is diagonal matrix; Second component pre-coding matrix is diagonal matrix; Three-component pre-coding matrix is made up of wave beam rotating vector, and it is long-pending that wave beam rotating vector equals two vectorial Kronecker;

Network equipment 20, for receiving the first precoding indication information, the second precoding indication information and the 3rd precoding indication information from subscriber equipment 10 according to the first precoding indication information, the second precoding indication information and the 3rd precoding indication information, determine pre-coding matrix.

In force, subscriber equipment 10 is determined the first precoding indication information, the second precoding indication information and is that the mode of the 3rd precoding indication information has a lot, enumerates several below:

Mode one, subscriber equipment 10 are selected the first component pre-coding matrix from the first component pre-coding matrix set, and definite the first precoding indication information corresponding to the first component pre-coding matrix of selecting, and select second component pre-coding matrix from the set of second component pre-coding matrix, and definite the second precoding indication information corresponding to second component pre-coding matrix of selecting, and select three-component pre-coding matrix from the set of three-component pre-coding matrix, and determine the 3rd precoding indication information corresponding to three-component pre-coding matrix of selecting.

Concrete, the pilot signal that subscriber equipment 10 sends according to network equipment 20 estimates the channel of each antenna port to subscriber equipment 10, wherein corresponding one or more physical antenna of each antenna port;

Then, subscriber equipment 10 is according to the channel estimating, from the first component pre-coding matrix set, select the first component pre-coding matrix, and select second component pre-coding matrix from the set of second component pre-coding matrix, and select three-component pre-coding matrix from the set of three-component pre-coding matrix.

Concrete, subscriber equipment is according to the corresponding relation of predefined the first component pre-coding matrix and the first precoding indication information, determine the first precoding indication information that the first component pre-coding matrix is corresponding, and according to the corresponding relation of predefined second component pre-coding matrix and the 3rd precoding indication information, determine the second precoding indication information that second component pre-coding matrix is corresponding, and according to the corresponding relation of predefined three-component pre-coding matrix and the 3rd precoding indication information, determine the 3rd precoding indication information that three-component pre-coding matrix is corresponding.

The corresponding relation of above-mentioned component pre-coding matrix and precoding indication information can be set as required.In force, can in agreement, stipulate corresponding relation; Can also be notified by high-level signaling.

Wherein, the first component pre-coding matrix can take the method that maximizes mutual information or maximization output Signal to Interference plus Noise Ratio or maximize output energy to determine.Wherein maximizing output can method for determination of amount be:

${\mathrm{<figure-callout\; id="1"\; label="W"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">W</figure-callout>}}_1=\underset{V\&Element;{\mathrm{<figure-callout\; id="1"\; label="C"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">C</figure-callout>}}_1}{\arg \max }{\left|\right|H_{1}V\left|\right|}^2$

Wherein, C ₁for the set that the first possible component pre-coding matrix forms, H ₁for network equipment 20 is to a part for the channel matrix of subscriber equipment 10, concrete is the part corresponding with the first component pre-coding matrix, for example the channel on 1 array antenna in vertical direction.

Second component pre-coding matrix can take the method that maximizes mutual information or maximization output Signal to Interference plus Noise Ratio or maximize output energy to determine.Wherein maximizing output can method for determination of amount be:

${\mathrm{<figure-callout\; id="2"\; label="W"\; filenames="HDA00002323632600011.png,HDA00002323632600012.png"\; state="\{\{state\}\}">W</figure-callout>}}_2=\underset{V\&Element;{\mathrm{<figure-callout\; id="2"\; label="C"\; filenames="HDA00002323632600011.png,HDA00002323632600012.png"\; state="\{\{state\}\}">C</figure-callout>}}_2}{\arg \max }{\left|\right|H_{2}V\left|\right|}^2$

Wherein, C ₂for the set that possible second component pre-coding matrix forms, H ₂for network equipment 20 is to a part for the channel matrix of subscriber equipment 10, concrete is the part corresponding with second component pre-coding matrix, for example the channel on 1 row antenna in horizontal direction.

Three-component pre-coding matrix can take the method that maximizes mutual information or maximization output Signal to Interference plus Noise Ratio or maximize output energy to determine.Wherein maximizing output can method for determination of amount be:

${\mathrm{<figure-callout\; id="3"\; label="W"\; filenames="HDA00002323632600011.png,HDA00002323632600012.png"\; state="\{\{state\}\}">W</figure-callout>}}_3=\underset{V\&Element;{\mathrm{<figure-callout\; id="3"\; label="C"\; filenames="HDA00002323632600011.png,HDA00002323632600012.png"\; state="\{\{state\}\}">C</figure-callout>}}_3}{\arg \max }{\left|\right|H({\mathrm{<figure-callout\; id="1"\; label="W"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">W</figure-callout>}}_1\&CircleTimes;W_2)\left|\right|}^2$

Wherein, C ₃for the set that possible three-component pre-coding matrix forms, H is the channel matrix of network equipment 20 to subscriber equipment 10, W ₁for the first component pre-coding matrix of having determined, W ₂for definite second component pre-coding matrix.

For mode one, when subscriber equipment 10 is transferred to network equipment 20 by the first precoding indication information, the second precoding indication information and the 3rd precoding indication information by up channel, the first precoding indication information, the second precoding indication information and the 3rd precoding indication information can report in the different moment, reported with different time granularities and frequency domain granularity; Also can report simultaneously.

In force, the first component pre-coding matrix of the embodiment of the present invention is block diagonal matrix, and the first component pre-coding matrix is the one in formula one and formula two:

${\mathrm{<figure-callout\; id="1"\; label="W"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">W</figure-callout>}}_1=\left[\begin{array}{cc}\mathrm{diag}\left(U_V\right)& 0\\ 0& \mathrm{diag}\left(U_V\right)\end{array}\right];$ Or

${\mathrm{<figure-callout\; id="1"\; label="W"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">W</figure-callout>}}_1=\left[\begin{array}{cc}\mathrm{diag}\left(U_V\right)& 0\\ 0& \mathrm{diag}\left({\mathrm{BU}}_V\right)\end{array}\right];$

Wherein, W ₁it is the first component pre-coding matrix; U _vbe wave beam forming vector, its dimension is D _v× 1; B is D _v× DV diagonal matrix, value can be U _vfunction, or get fixed value; D _vfor positive integer; Diag (U) is the diagonal matrix being made up of vectorial U, and on its diagonal, element equals the element of vectorial U.

In mode one, the first component pre-coding matrix set is made up of a kind of the first component pre-coding matrix in formula one and formula two above.

Preferably, U _vthe set { U that wave beam forming vector forms _{v, q}: q=0,1 ..., N _van element in-1}, U _v=U _{v, n}, 0≤n≤N _v-1; N _vfor positive integer.

U _{v, n}can be a part for DFT vector or DFT (Discrete Fourier Transform, Fourier transform) vector, as take from the front D of L point DFT vector _voK, or

i=0,1 ..., D _v-1.Preferably, L=N _v.If B is U _vfunction, note B _nwith U _{v, n}correspondence, ${\left[B_n\right]}_{\mathrm{ii}}{=e}^{\mathrm{<figure-callout\; id="2"\; label="j"\; filenames="HDA00002323632600011.png,HDA00002323632600012.png"\; state="\{\{state\}\}">j</figure-callout>}\frac{2\mathrm{\&pi;n}{D}_V}{L}}$ Or ${\left[B_n\right]}_{\mathrm{ii}}=e^{-\mathrm{<figure-callout\; id="2"\; label="j"\; filenames="HDA00002323632600011.png,HDA00002323632600012.png"\; state="\{\{state\}\}">j</figure-callout>}\frac{2\mathrm{\&pi;n}{D}_V}{L}}.$

U _{v, n}also can be the vector in Grassmanian code book.Grassmanian code book is the set of a vector or matrix, and the selection principle of set element is to make the distance minimum value of any two elements in set reach maximum, concrete { U _{v, q}: q=0,1 ..., N _v-1} is D _vin gt, element number is N _vgrassmanian code book.

{ U _{v, q}: q=0,1 ..., N _velement in-1} can comprise DFT vector sum Grassmanian vector simultaneously, and for example half is DFT vector, and half is taken from Grassmanian code book in addition.

In force, the second component pre-coding matrix of the embodiment of the present invention is that second component pre-coding matrix is diag (U _h) or diag (A _uh);

Wherein, U _hbe wave beam forming vector, its dimension is D _h× 1; A is D _h× D _hdiagonal matrix, its value can be U _hfunction, or get fixed value; D _hfor positive integer; Diag (U) is the diagonal matrix being made up of vectorial U, and on its diagonal, element equals the element of vectorial U.

Preferably, U _hthe set { U that wave beam forming vector forms _{h, p}: p=0,1 ..., N _han element in-1}, U _h=U _{h, k}, 0≤k≤N _h-1, N _hfor positive integer.

U _{h, k}can be a part for DFT vector or DFT vector, as take from the front D of L point DFT vector _hoK, ${\left[U_{H,k}\right]}_i{=e}^{\mathrm{<figure-callout\; id="2"\; label="j"\; filenames="HDA00002323632600011.png,HDA00002323632600012.png"\; state="\{\{state\}\}">j</figure-callout>}\frac{2\mathrm{\&pi;ik}}{L}}$ Or ${\left[U_{H,k}\right]}_i{=e}^{-\mathrm{<figure-callout\; id="2"\; label="j"\; filenames="HDA00002323632600011.png,HDA00002323632600012.png"\; state="\{\{state\}\}">j</figure-callout>}\frac{2\mathrm{\&pi;ik}}{L}},$ $i=\mathrm{0,1}...,\frac{D_H}{2}-1.$ Preferably, L=N _h.If A is U _hfunction, note A _kwith U _{h, k}correspondence, can make

or ${\left[A_k\right]}_{\mathrm{ii}}{=e}^{-\mathrm{<figure-callout\; id="2"\; label="j"\; filenames="HDA00002323632600011.png,HDA00002323632600012.png"\; state="\{\{state\}\}">j</figure-callout>}\frac{2\mathrm{\&pi;k}{D}_H}{L}}.$

U _{h, k}also can be the vector in Grassmanian code book.Grassmanian code book is the set of a vector or matrix, and the selection principle of set element is to make the distance minimum value of any two elements in set reach maximum, concrete { U _{h, p}: p=0,1 ..., N _h-1} is D _hthe Grassmanian code book that in gt, element number is NH.

{ U _{h, p}: p=0,1 ..., N _helement in-1} can comprise DFT vector sum Grassmanian vector simultaneously, and for example half is DFT vector, and half is taken from Grassmanian code book in addition.

In force, three-component pre-coding matrix is (2M _hm _vthe product of) × r dimension matrix and power normalization coefficient, r is the columns of pre-coding matrix;

Three-component pre-coding matrix is:

${\mathrm{<figure-callout\; id="3"\; label="W"\; filenames="HDA00002323632600011.png,HDA00002323632600012.png"\; state="\{\{state\}\}">W</figure-callout>}}_3=\left[\begin{array}{ccc}{\mathrm{<figure-callout\; id="1"\; label="X\; V"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">X</figure-callout>}}_V^{}\&CircleTimes;{\mathrm{<figure-callout\; id="1"\; label="X\; H"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">X</figure-callout>}}_H^{}& \&CenterDot;\&CenterDot;\&CenterDot;& X_V^r\&CircleTimes;X_H^r\\ {\mathrm{\&alpha;}}_1{\mathrm{<figure-callout\; id="1"\; label="X\; V"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">X</figure-callout>}}_V^{}\&CircleTimes;{\mathrm{<figure-callout\; id="1"\; label="X\; H"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">X</figure-callout>}}_H^{}& \&CenterDot;\&CenterDot;\&CenterDot;& {\mathrm{\&alpha;}}_r{X}_V^r\&CircleTimes;X_H^r\end{array}\right]M;$

Wherein, W ₃it is three-component pre-coding matrix; α _ithat mould value is 1 complex scalar;

be wave beam forming vector, its dimension is D _v× 1, be wave beam forming vector, its dimension is D _h× 1, i=1 ..., r, D _hand D _vfor positive integer, M is power normalization coefficient.

α _ifor enter horizontal phasing control between two groups of antennas.

If

be that horizontal beam figuration is adjusted vector, its effect is to U _hthe horizontal beam forming is finely tuned,

be that vertical beam figuration is adjusted vector, its effect is to U _vthe vertical beam forming is finely tuned.

Concrete, three-component pre-coding matrix W ₃take from a set, the 3rd precoding indication information is to an element in should gathering.For example,, for the code book of r=1, W ₃the set forming is $\{\left[\begin{array}{c}{X}_{V,\mathrm{<figure-callout\; id="1"\; label="k"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">k</figure-callout>}}^1\&CircleTimes;X_{H,\mathrm{<figure-callout\; id="1"\; label="n"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">n</figure-callout>}}^1\\ {\mathrm{\&alpha;X}}_{V,\mathrm{<figure-callout\; id="1"\; label="k"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">k</figure-callout>}}^1\&CircleTimes;X_{H,n}^1\end{array}\right]:k=\mathrm{0,1}...,M_V-1;n=\mathrm{0,1},...,M_H-1;\mathrm{\&alpha;}=1,-1,e^{-j\frac{\mathrm{\&pi;}}{2}},e^{j\frac{\mathrm{\&pi;}}{2}}\},$ Wherein

take from the vector set pre-defining concrete can be Grassmanian vector or DFT vector, for example or

also can be the combination of Grassmanian vector sum DFT vector.

take from the vector set pre-defining

concrete can be Grassmanian vector or DFT vector, for example

or also can be the combination of Grassmanian vector sum DFT vector.

General, the code book that is r for order, its three-component pre-coding matrix W ₃take from a set, the element in this set all has form $\left[\begin{array}{c}{X}_V^{}\end{array}\right]$ $\left[\begin{array}{ccc}{}_1^{}\&CircleTimes;{\mathrm{<figure-callout\; id="1"\; label="X\; H"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">X</figure-callout>}}_H^{}& \&CenterDot;\&CenterDot;\&CenterDot;& X_V^r\&CircleTimes;X_H^r\\ {\mathrm{\&alpha;}}_1{\mathrm{<figure-callout\; id="1"\; label="X\; V"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">X</figure-callout>}}_V^{}\&CircleTimes;{\mathrm{<figure-callout\; id="1"\; label="X\; H"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">X</figure-callout>}}_H^{}& \&CenterDot;\&CenterDot;\&CenterDot;& {\mathrm{\&alpha;}}_r{X}_V^r\&CircleTimes;X_H^r\end{array}\right],$ Wherein

with

can be Grassmanian vector or DFT vector, can be also the combination of Grassmanian vector sum DFT vector.For example ${\left[X_{V,k}^t\right]}_i=e^{\mathrm{<figure-callout\; id="2"\; label="j"\; filenames="HDA00002323632600011.png,HDA00002323632600012.png"\; state="\{\{state\}\}">j</figure-callout>}2\mathrm{\&pi;}\frac{\mathrm{ki}}{L}}$ Or ${\left[X_{V,k}^t\right]}_i=e^{-\mathrm{<figure-callout\; id="2"\; label="j"\; filenames="HDA00002323632600011.png,HDA00002323632600012.png"\; state="\{\{state\}\}">j</figure-callout>}2\mathrm{\&pi;}\frac{\mathrm{ki}}{L}},$ ${\left[X_{H,k}^t\right]}_i=e^{\mathrm{<figure-callout\; id="2"\; label="j"\; filenames="HDA00002323632600011.png,HDA00002323632600012.png"\; state="\{\{state\}\}">j</figure-callout>}2\mathrm{\&pi;}\frac{\mathrm{ki}}{L}}$ Or ${\left[X_{H,k}^t\right]}_i{=e}^{-\mathrm{<figure-callout\; id="2"\; label="j"\; filenames="HDA00002323632600011.png,HDA00002323632600012.png"\; state="\{\{state\}\}">j</figure-callout>}2\mathrm{\&pi;}\frac{\mathrm{ki}}{L}},$ ${\mathrm{\&alpha;}}_t\&Element;\{{\mathrm{<figure-callout\; id="2"\; label="e\; j"\; filenames="HDA00002323632600011.png,HDA00002323632600012.png"\; state="\{\{state\}\}">e</figure-callout>}}^j:z=\mathrm{0,1},...,Z-1\},$ T=1 ..., r, what wherein L was DFT counts.Preferably, L=2 or 4 or 8 or 16 or 32 or 64.Also can be the mixing of Grassmanian vector sum DFT vector.The 3rd precoding indication information is to an element in should gathering.

Preferably, ${\mathrm{\&alpha;}}_i\&Element;\{{\mathrm{<figure-callout\; id="2"\; label="e\; j"\; filenames="HDA00002323632600011.png,HDA00002323632600012.png"\; state="\{\{state\}\}">e</figure-callout>}}^j:t=\mathrm{0,1},...,3\},$ J is pure imaginary number, such as $j=e^{j\frac{\mathrm{\&pi;}}{2}}.$

In force, pre-coding matrix is: the one in formula three～formula six

$W=({\mathrm{<figure-callout\; id="1"\; label="W"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">W</figure-callout>}}_1\&CircleTimes;W_2)\&CenterDot;{\mathrm{<figure-callout\; id="3"\; label="W"\; filenames="HDA00002323632600011.png,HDA00002323632600012.png"\; state="\{\{state\}\}">W</figure-callout>}}_3=(\left[\begin{array}{cc}\mathrm{diag}\left(U_V\right)& 0\\ 0& \mathrm{diag}\left(U_V\right)\end{array}\right]\&CircleTimes;\mathrm{diag}\left(U_H\right))\left[\begin{array}{ccc}{\mathrm{<figure-callout\; id="1"\; label="X\; V"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">X</figure-callout>}}_V^{}\&CircleTimes;{\mathrm{<figure-callout\; id="1"\; label="X\; H"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">X</figure-callout>}}_H^{}& \&CenterDot;\&CenterDot;& X_V^r\&CircleTimes;X_H^r\\ {\mathrm{\&alpha;}}_1{\mathrm{<figure-callout\; id="1"\; label="X\; V"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">X</figure-callout>}}_V^{}\&CircleTimes;{\mathrm{<figure-callout\; id="1"\; label="X\; H"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">X</figure-callout>}}_H^{}& \&CenterDot;\&CenterDot;\&CenterDot;& {\mathrm{\&alpha;}}_r{X}_V^r\&CircleTimes;X_H^r\end{array}\right]M$

... ... .. formula three;

$W=({\mathrm{<figure-callout\; id="1"\; label="W"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">W</figure-callout>}}_1\&CircleTimes;W_2)\&CenterDot;{\mathrm{<figure-callout\; id="3"\; label="W"\; filenames="HDA00002323632600011.png,HDA00002323632600012.png"\; state="\{\{state\}\}">W</figure-callout>}}_3=(\left[\begin{array}{cc}\mathrm{diag}\left(U_V\right)& 0\\ 0& \mathrm{diag}\left(U_V\right)\end{array}\right]\&CircleTimes;\mathrm{diag}\left({\mathrm{AU}}_H\right))\left[\begin{array}{ccc}{\mathrm{<figure-callout\; id="1"\; label="X\; V"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">X</figure-callout>}}_V^{}\&CircleTimes;{\mathrm{<figure-callout\; id="1"\; label="X\; H"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">X</figure-callout>}}_H^{}& \&CenterDot;\&CenterDot;& X_V^r\&CircleTimes;X_H^r\\ {\mathrm{\&alpha;}}_1{\mathrm{<figure-callout\; id="1"\; label="X\; V"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">X</figure-callout>}}_V^{}\&CircleTimes;{\mathrm{<figure-callout\; id="1"\; label="X\; H"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">X</figure-callout>}}_H^{}& \&CenterDot;\&CenterDot;\&CenterDot;& {\mathrm{\&alpha;}}_r{X}_V^r\&CircleTimes;X_H^r\end{array}\right]M$

... ... .. formula four;

$W=({\mathrm{<figure-callout\; id="1"\; label="W"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">W</figure-callout>}}_1\&CircleTimes;W_2)\&CenterDot;{\mathrm{<figure-callout\; id="3"\; label="W"\; filenames="HDA00002323632600011.png,HDA00002323632600012.png"\; state="\{\{state\}\}">W</figure-callout>}}_3=(\left[\begin{array}{cc}\mathrm{diag}\left(U_V\right)& 0\\ 0& \mathrm{diag}\left(B{U}_V\right)\end{array}\right]\&CircleTimes;\mathrm{diag}\left(U_H\right))\left[\begin{array}{ccc}{\mathrm{<figure-callout\; id="1"\; label="X\; V"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">X</figure-callout>}}_V^{}\&CircleTimes;{\mathrm{<figure-callout\; id="1"\; label="X\; H"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">X</figure-callout>}}_H^{}& \&CenterDot;\&CenterDot;& X_V^r\&CircleTimes;X_H^r\\ {\mathrm{\&alpha;}}_1{\mathrm{<figure-callout\; id="1"\; label="X\; V"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">X</figure-callout>}}_V^{}\&CircleTimes;{\mathrm{<figure-callout\; id="1"\; label="X\; H"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">X</figure-callout>}}_H^{}& \&CenterDot;\&CenterDot;\&CenterDot;& {\mathrm{\&alpha;}}_r{X}_V^r\&CircleTimes;X_H^r\end{array}\right]M$

... .... formula five;

$W=({\mathrm{<figure-callout\; id="1"\; label="W"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">W</figure-callout>}}_1\&CircleTimes;W_2)\&CenterDot;{\mathrm{<figure-callout\; id="3"\; label="W"\; filenames="HDA00002323632600011.png,HDA00002323632600012.png"\; state="\{\{state\}\}">W</figure-callout>}}_3=(\left[\begin{array}{cc}\mathrm{diag}\left(U_V\right)& 0\\ 0& \mathrm{diag}\left(B{U}_V\right)\end{array}\right]\&CircleTimes;\mathrm{diag}\left({\mathrm{AU}}_H\right))\left[\begin{array}{ccc}{\mathrm{<figure-callout\; id="1"\; label="X\; V"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">X</figure-callout>}}_V^{}\&CircleTimes;{\mathrm{<figure-callout\; id="1"\; label="X\; H"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">X</figure-callout>}}_H^{}& \&CenterDot;\&CenterDot;& X_V^r\&CircleTimes;X_H^r\\ {\mathrm{\&alpha;}}_1{\mathrm{<figure-callout\; id="1"\; label="X\; V"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">X</figure-callout>}}_V^{}\&CircleTimes;{\mathrm{<figure-callout\; id="1"\; label="X\; H"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">X</figure-callout>}}_H^{}& \&CenterDot;\&CenterDot;\&CenterDot;& {\mathrm{\&alpha;}}_r{X}_V^r\&CircleTimes;X_H^r\end{array}\right]M$

... .. formula six;

Wherein, W is pre-coding matrix; W ₁it is the first component pre-coding matrix; W ₂it is second component pre-coding matrix; W ₃it is three-component pre-coding matrix; U _vbe wave beam forming vector, its dimension is D _v× 1; B is D _v× D _vdiagonal matrix; D _vfor positive integer; Diag (U) is the diagonal matrix being made up of vectorial U, and on its diagonal, element equals the element of vectorial U; U _hbe wave beam forming vector, its dimension is D _h× 1; A is D _h× D _hdiagonal matrix; D _hfor positive integer; α _ithat mould value is 1 complex scalar; be wave beam forming vector, its dimension is D _v× 1,

be wave beam forming vector, its dimension is D _h× 1, i=1 ..., r, D _hand D _vfor positive integer, M is power normalization coefficient.

Preferably, $M=\frac{1}{\sqrt{{\mathrm{rD}}_H{D}_V}}.$

In force, formula three～formula six can also convert, and in formula above, three-component pre-coding matrix is the product of matrix and M; Part that can also be using M as the first component pre-coding matrix, the first component pre-coding matrix is the product of matrix and M, second component pre-coding matrix and three-component pre-coding matrix are matrix; Part that can also be using M as second component pre-coding matrix, second component pre-coding matrix is the product of matrix and M, the first component pre-coding matrix and three-component pre-coding matrix are that matrix can also be independent by M,

Subscriber equipment 10 is using the product of the first component pre-coding matrix, second component pre-coding matrix and three-component pre-coding matrix as pre-coding matrix.?

For mode one, if subscriber equipment 10 pre-determines pre-coding matrix, and multiple the first component pre-coding matrixes from one of them component pre-coding matrix set, are selected, from two other component pre-coding matrix set, respectively select one-component pre-coding matrix, can from multiple the first component pre-coding matrixes, select one according to the one in formula three～formula six.

Mode two, subscriber equipment 10 are determined at least one pre-coding matrix, and according to the corresponding relation of the first precoding indication information, the second precoding indication information, the 3rd precoding indication information and pre-coding matrix, determine the first precoding indication information, the second precoding indication information and the 3rd precoding indication information that at least one pre-coding matrix is corresponding; Notify the first precoding indication information, the second precoding indication information and the 3rd precoding indication information to network side using a first precoding indication information, a second precoding indication information and a 3rd precoding indication information in the first precoding indication information, the second precoding indication information and the 3rd precoding indication information determined as needs.

At least one pre-coding matrix that subscriber equipment 10 is determined is the function of the first component pre-coding matrix, second component pre-coding matrix and three-component pre-coding matrix.Concrete, at least one pre-coding matrix that subscriber equipment 10 is determined is the product of the first component pre-coding matrix, second component pre-coding matrix and three-component pre-coding matrix.

Wherein, the expression formula applicable pattern two too of the first component pre-coding matrix, second component pre-coding matrix and the three-component pre-coding matrix in aforesaid way one; The first component pre-coding matrix in aforesaid way one, also applicable pattern two of the corresponding relation of second component pre-coding matrix and three-component and pre-coding matrix.

Wherein, network equipment 20 receives from after the first precoding indication information of subscriber equipment 10, the second precoding indication information and the 3rd precoding indication information, there is the multiple mode of determining pre-coding matrix according to the first precoding indication information, the second precoding indication information and the 3rd precoding indication information, enumerate several below:

Mode one, network equipment 20 are determined the first component pre-coding matrix corresponding to the first precoding indication information, and determine second component pre-coding matrix corresponding to the second precoding indication information, and determine three-component pre-coding matrix corresponding to the 3rd precoding indication information;

Network equipment 20 is determined pre-coding matrix according to the one in formula three～formula six.

Concrete, network equipment 20 is determined the first component pre-coding matrix corresponding to the first precoding indication information, and definite second component pre-coding matrix corresponding to the second precoding indication information, and definite three-component pre-coding matrix corresponding to the 3rd precoding indication information, then by the first component pre-coding matrix, second component pre-coding matrix and three-component pre-coding matrix are brought into the one in formula three～formula six, just can determine the first precoding indication information, the second precoding indication information and pre-coding matrix corresponding to the 3rd precoding indication information.

Wherein, network equipment 20, according to according to the corresponding relation of predefined the first component pre-coding matrix and the first precoding indication information, is determined the first component pre-coding matrix corresponding to the first precoding indication information of receiving; According to the corresponding relation of predefined second component pre-coding matrix and the second precoding indication information, determine second component pre-coding matrix corresponding to the second precoding indication information of receiving; According to the corresponding relation of predefined three-component pre-coding matrix and the 3rd precoding indication information, determine three-component pre-coding matrix corresponding to the second precoding indication information of receiving.

The corresponding relation of above-mentioned component pre-coding matrix and precoding indication information can be set as required.In force, can in agreement, stipulate corresponding relation; Can also be notified by high-level signaling.

Mode two, network equipment 20 are according to the corresponding relation of predefined the first precoding indication information, the second precoding indication information, the 3rd precoding indication information and pre-coding matrix, determine the first precoding indication information, the second precoding indication information and pre-coding matrix corresponding to the 3rd precoding indication information received.

Wherein, the corresponding relation of the first precoding indication information, the second precoding indication information, the 3rd precoding indication information and pre-coding matrix can be set as required.In force, can in agreement, stipulate corresponding relation; Can also be notified by high-level signaling.

Network equipment 20 determines after pre-coding matrix, the transmitting data of subscriber equipment 10 carried out to preliminary treatment with definite pre-coding matrix.

Wherein, the horizontal dimension of the embodiment of the present invention and vertical dimension can exchange.

The network equipment 20 of the embodiment of the present invention can be base station (such as macro base station, Home eNodeB etc.), can be also RN (relaying) equipment, can also be other network equipment.

The network equipment 20 of the embodiment of the present invention can be base station (such as macro base station, Home eNodeB etc.), can be also RN (relaying) equipment, can also be other network equipment.

As shown in Figure 5, the embodiment of the present invention determines that the subscriber equipment in the system of pre-coding matrix comprises: the first determination module 500 and sending module 510.

The first determination module 500, for determining the first precoding indication information, the second precoding indication information and the 3rd precoding indication information, wherein the first precoding indication information, the second precoding indication information and the 3rd precoding indication information are corresponding with pre-coding matrix, pre-coding matrix equals the Jacobian matrix of the first component pre-coding matrix, second component pre-coding matrix and three-component pre-coding matrix, and the first component pre-coding matrix is diagonal matrix; Second component pre-coding matrix is diagonal matrix; Three-component pre-coding matrix is made up of wave beam rotating vector, and it is long-pending that wave beam rotating vector equals two vectorial Kronecker;

Sending module 510, for sending the first precoding indication information, the second precoding indication information and the 3rd precoding indication information to network side.

Preferably, the first determination module 500 is selected the first component pre-coding matrix from the first component pre-coding matrix set, and definite the first precoding indication information corresponding to the first component pre-coding matrix of selecting, and select second component pre-coding matrix from the set of second component pre-coding matrix, and definite the second precoding indication information corresponding to second component pre-coding matrix of selecting, and select three-component pre-coding matrix from the set of three-component pre-coding matrix, and determine the 3rd precoding indication information corresponding to three-component pre-coding matrix of selecting.

Preferably, the first determination module 500 is according to the corresponding relation of predefined the first component pre-coding matrix and the first precoding indication information, determine the first precoding indication information that the first component pre-coding matrix is corresponding, and according to the corresponding relation of predefined second component pre-coding matrix and the 3rd precoding indication information, determine the second precoding indication information that second component pre-coding matrix is corresponding, and according to the corresponding relation of predefined three-component pre-coding matrix and the 3rd precoding indication information, determine the 3rd precoding indication information that three-component pre-coding matrix is corresponding.

Preferably, the first determination module 500 is determined at least one pre-coding matrix, and according to the corresponding relation of the first precoding indication information, the second precoding indication information, the 3rd precoding indication information and pre-coding matrix, determine the first precoding indication information, the second precoding indication information and the 3rd precoding indication information that at least one pre-coding matrix is corresponding; From the first precoding indication information, the second precoding indication information and the 3rd precoding indication information determined, select a first precoding indication information, a second precoding indication information and a 3rd precoding indication information.

Preferably, the first component pre-coding matrix is:

${\mathrm{<figure-callout\; id="1"\; label="W"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">W</figure-callout>}}_1=\left[\begin{array}{cc}\mathrm{diag}\left(U_V\right)& 0\\ 0& \mathrm{diag}\left(U_V\right)\end{array}\right];$ Or

${\mathrm{<figure-callout\; id="1"\; label="W"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">W</figure-callout>}}_1=\left[\begin{array}{cc}\mathrm{diag}\left(U_V\right)& 0\\ 0& \mathrm{diag}\left({\mathrm{BU}}_V\right)\end{array}\right];$

Wherein, W ₁it is the first component pre-coding matrix; U _vbe wave beam forming vector, its dimension is D _v× 1; B is D _v× DV diagonal matrix; D _vfor positive integer; Diag (U) is the diagonal matrix being made up of vectorial U, and on its diagonal, element equals the element of vectorial U.

Preferably, U _vthe set U that wave beam formed matrix forms _vthe set { U that wave beam forming vector forms _{v, q}: q=0,1 ..., N _van element in-1}, U _v=U _{v, n}, 0≤n≤N _v-1; N _vfor positive integer.

Preferably, second component pre-coding matrix is diag (U _h) or diag (AU _h);

Wherein, U _hbe wave beam forming vector, its dimension is D _h× 1; A is D _h× D _hdiagonal matrix; D _hfor positive integer; Diag (U) is the diagonal matrix being made up of vectorial U, and on its diagonal, element equals the element of vectorial U.

Preferably, U _hthe set { U that wave beam forming vector forms _{h, p}: p=0,1 ..., N _han element in-1}, U _h=U _{h, k}, 0≤k≤N _h-1, N _hfor positive integer.

Preferably, three-component pre-coding matrix is (2M _hm _vthe product of) × r dimension matrix and power normalization coefficient, r is the columns of pre-coding matrix;

Three-component pre-coding matrix is:

${\mathrm{<figure-callout\; id="3"\; label="W"\; filenames="HDA00002323632600011.png,HDA00002323632600012.png"\; state="\{\{state\}\}">W</figure-callout>}}_3=\left[\begin{array}{ccc}{\mathrm{<figure-callout\; id="1"\; label="X\; V"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">X</figure-callout>}}_V^{}\&CircleTimes;{\mathrm{<figure-callout\; id="1"\; label="X\; H"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">X</figure-callout>}}_H^{}& \&CenterDot;\&CenterDot;\&CenterDot;& X_V^r\&CircleTimes;X_H^r\\ {\mathrm{\&alpha;}}_1{\mathrm{<figure-callout\; id="1"\; label="X\; V"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">X</figure-callout>}}_V^{}\&CircleTimes;{\mathrm{<figure-callout\; id="1"\; label="X\; H"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">X</figure-callout>}}_H^{}& \&CenterDot;\&CenterDot;\&CenterDot;& {\mathrm{\&alpha;}}_r{X}_V^r\&CircleTimes;X_H^r\end{array}\right]M;$

Wherein, W ₃it is three-component pre-coding matrix; α _ithat mould value is 1 complex scalar;

be wave beam forming vector, its dimension is D _v× 1, be wave beam forming vector, its dimension is D _h× 1, i=1 ..., r, D _hand D _vfor positive integer, M is power normalization coefficient.

Preferably, pre-coding matrix is:

$W=({\mathrm{<figure-callout\; id="1"\; label="W"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">W</figure-callout>}}_1\&CircleTimes;W_2)\&CenterDot;{\mathrm{<figure-callout\; id="3"\; label="W"\; filenames="HDA00002323632600011.png,HDA00002323632600012.png"\; state="\{\{state\}\}">W</figure-callout>}}_3;$

Wherein, W is pre-coding matrix; W ₁it is the first component pre-coding matrix; W ₂it is second component pre-coding matrix; W ₃it is three-component pre-coding matrix.

As shown in Figure 6, the embodiment of the present invention determines that the network equipment in the system of pre-coding matrix comprises: receiver module 600 and the second determination module 610.

Receiver module 600, for receiving the first precoding indication information, the second precoding indication information and the 3rd precoding indication information from subscriber equipment;

The second determination module 610, for according to the first precoding indication information, the second precoding indication information and the 3rd precoding indication information, determines pre-coding matrix;

Wherein, the first precoding indication information, the second precoding indication information and the 3rd precoding indication information are corresponding with pre-coding matrix, pre-coding matrix equals the Jacobian matrix of the first component pre-coding matrix, second component pre-coding matrix and three-component pre-coding matrix, and wherein the first component pre-coding matrix is diagonal matrix; Second component pre-coding matrix is diagonal matrix; Three-component pre-coding matrix is made up of wave beam rotating vector, and it is long-pending that wave beam rotating vector equals two vectorial Kronecker.

Preferably, the second determination module 610 is determined the first component pre-coding matrix corresponding to the first precoding indication information, and determine second component pre-coding matrix corresponding to the second precoding indication information, and determine three-component pre-coding matrix corresponding to the 3rd precoding indication information; Using the product of the first component pre-coding matrix, second component pre-coding matrix and three-component pre-coding matrix as pre-coding matrix.

Preferably, the second determination module 610, according to the corresponding relation of predefined the first component pre-coding matrix and the first precoding indication information, is determined the first component pre-coding matrix corresponding to the first precoding indication information of receiving; According to the corresponding relation of predefined second component pre-coding matrix and the second precoding indication information, determine second component pre-coding matrix corresponding to the second precoding indication information of receiving; According to the corresponding relation of predefined three-component pre-coding matrix and the 3rd precoding indication information, determine three-component pre-coding matrix corresponding to the second precoding indication information of receiving.

Preferably, the first component pre-coding matrix is:

${\mathrm{<figure-callout\; id="1"\; label="W"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">W</figure-callout>}}_1=\left[\begin{array}{cc}\mathrm{diag}\left(U_V\right)& 0\\ 0& \mathrm{diag}\left(U_V\right)\end{array}\right];$ Or

${\mathrm{<figure-callout\; id="1"\; label="W"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">W</figure-callout>}}_1=\left[\begin{array}{cc}\mathrm{diag}\left(U_V\right)& 0\\ 0& \mathrm{diag}\left({\mathrm{BU}}_V\right)\end{array}\right];$

Wherein, W ₁it is the first component pre-coding matrix; U _vbe wave beam forming vector, its dimension is D _v× 1; B is D _v× DV diagonal matrix; D _vfor positive integer; Diag (U) is the diagonal matrix being made up of vectorial U, and on its diagonal, element equals the element of vectorial U.

Preferably, U _vthe set { U that wave beam forming vector forms _{v, q}: q=0,1 ..., N _van element in-1}, U _v=U _{v, n}, 0≤n≤N _v-1; NV is positive integer.

Preferably, second component pre-coding matrix is diag (U _h) or diag (AU _h);

Wherein, U _hbe wave beam forming vector, its dimension is D _h× 1; A is D _h× D _hdiagonal matrix; D _hfor positive integer; Diag (U) is the diagonal matrix being made up of vectorial U, and on its diagonal, element equals the element of vectorial U.

Preferably, U _hthe set { U that wave beam forming vector forms _{h, p}: p=0,1 ..., N _han element in-1}, U _h=U _{h, k}, 0≤k≤N _h-1, N _hfor positive integer.

Preferably, three-component pre-coding matrix is (2M _hm _vthe product of) × r dimension matrix and power normalization coefficient, r is the columns of pre-coding matrix;

Three-component pre-coding matrix is:

${\mathrm{<figure-callout\; id="3"\; label="W"\; filenames="HDA00002323632600011.png,HDA00002323632600012.png"\; state="\{\{state\}\}">W</figure-callout>}}_3=\left[\begin{array}{ccc}{\mathrm{<figure-callout\; id="1"\; label="X\; V"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">X</figure-callout>}}_V^{}\&CircleTimes;{\mathrm{<figure-callout\; id="1"\; label="X\; H"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">X</figure-callout>}}_H^{}& \&CenterDot;\&CenterDot;\&CenterDot;& X_V^r\&CircleTimes;X_H^r\\ {\mathrm{\&alpha;}}_1{\mathrm{<figure-callout\; id="1"\; label="X\; V"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">X</figure-callout>}}_V^{}\&CircleTimes;{\mathrm{<figure-callout\; id="1"\; label="X\; H"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">X</figure-callout>}}_H^{}& \&CenterDot;\&CenterDot;\&CenterDot;& {\mathrm{\&alpha;}}_r{X}_V^r\&CircleTimes;X_H^r\end{array}\right]M;$

Wherein, W ₃it is three-component pre-coding matrix; α _ithat mould value is 1 complex scalar;

be wave beam forming vector, its dimension is D _v× 1, be wave beam forming vector, its dimension is D _h× 1, i=1 ..., r, D _hand D _vfor positive integer, M is power normalization coefficient.

Preferably, the second determination module 610, according to the corresponding relation of predefined the first precoding indication information, the second precoding indication information, the 3rd precoding indication information and pre-coding matrix, is determined the first precoding indication information, the second precoding indication information and pre-coding matrix corresponding to the 3rd precoding indication information received.

Based on same inventive concept, a kind of method of transfer encoding indication information is also provided in the embodiment of the present invention, because subscriber equipment in the system of definite pre-coding matrix is equipment corresponding to the method, and the principle that the method is dealt with problems is similar to subscriber equipment in the system of definite pre-coding matrix, therefore the enforcement of the method can be referring to the enforcement of equipment, repeats part and repeat no more.

As shown in Figure 7, the method for embodiment of the present invention transfer encoding indication information comprises the following steps:

Step 701, subscriber equipment are determined the first precoding indication information, the second precoding indication information and the 3rd precoding indication information, wherein the first precoding indication information, the second precoding indication information and the 3rd precoding indication information are corresponding with pre-coding matrix, pre-coding matrix equals the Jacobian matrix of the first component pre-coding matrix, second component pre-coding matrix and three-component pre-coding matrix, and the first component pre-coding matrix is diagonal matrix; Second component pre-coding matrix is diagonal matrix; Three-component pre-coding matrix is made up of wave beam rotating vector, and it is long-pending that wave beam rotating vector equals two vectorial Kronecker;

Step 702, subscriber equipment send the first precoding indication information, the second precoding indication information and the 3rd precoding indication information to network side.

In force, subscriber equipment determines that the mode of the first precoding indication information and the second precoding indication information has a lot, enumerates several below:

Mode one, subscriber equipment are selected the first component pre-coding matrix from the first component pre-coding matrix set, and definite the first precoding indication information corresponding to the first component pre-coding matrix of selecting, and select second component pre-coding matrix from the set of second component pre-coding matrix, and definite the second precoding indication information corresponding to second component pre-coding matrix of selecting, and select three-component pre-coding matrix from the set of three-component pre-coding matrix, and determine the 3rd precoding indication information corresponding to three-component pre-coding matrix of selecting.

Concrete, the pilot signal that subscriber equipment sends according to network equipment estimates the channel of each antenna port to subscriber equipment, wherein corresponding one or more physical antenna of each antenna port;

Then, subscriber equipment is according to the channel estimating, from the first component pre-coding matrix set, select the first component pre-coding matrix, and select second component pre-coding matrix from the set of second component pre-coding matrix, and select three-component pre-coding matrix from the set of three-component pre-coding matrix.

Concrete, subscriber equipment is according to the corresponding relation of predefined the first component pre-coding matrix and the first precoding indication information, determine the first precoding indication information that the first component pre-coding matrix is corresponding, and according to the corresponding relation of predefined second component pre-coding matrix and the 3rd precoding indication information, determine the second precoding indication information that second component pre-coding matrix is corresponding, and according to the corresponding relation of predefined three-component pre-coding matrix and the 3rd precoding indication information, determine the 3rd precoding indication information that three-component pre-coding matrix is corresponding.

The corresponding relation of above-mentioned component pre-coding matrix and precoding indication information can be set as required.In force, can in agreement, stipulate corresponding relation; Can also be notified by high-level signaling.

For mode one, when subscriber equipment is transferred to network equipment by the first precoding indication information, the second precoding indication information and the 3rd precoding indication information by up channel, the first precoding indication information, the second precoding indication information and the 3rd precoding indication information can report in the different moment, reported with different time granularities and frequency domain granularity; Also can report simultaneously.

In force, the first component pre-coding matrix of the embodiment of the present invention is block diagonal matrix, and the first component pre-coding matrix is the one in formula one and formula two

In mode one, the first component pre-coding matrix set is made up of a kind of the first component pre-coding matrix in formula one and formula two above.

In force, the second component pre-coding matrix of the embodiment of the present invention is diag (U _h) or diag (AU _h);

Wherein, U _hbe wave beam forming vector, its dimension is D _h× 1; A is D _h× D _hdiagonal matrix; D _hfor positive integer; Diag (U) is the diagonal matrix being made up of vectorial U, and on its diagonal, element equals the element of vectorial U.

Preferably, D _hfor the half of horizontal antenna number.

Preferably, U _hthe set { U that wave beam forming vector forms _{h, p}: p=0,1 ..., N _han element in-1}, U _h=U _{h, k}, 0≤k≤N _h-1, N _hfor positive integer.

Preferably, U _hit is a part for DFT matrix or DFT matrix.

In force, three-component pre-coding matrix is (2M _hm _vthe product of) × r dimension matrix and power normalization coefficient, r is the columns of pre-coding matrix;

Three-component pre-coding matrix is:

${\mathrm{<figure-callout\; id="3"\; label="W"\; filenames="HDA00002323632600011.png,HDA00002323632600012.png"\; state="\{\{state\}\}">W</figure-callout>}}_3=\left[\begin{array}{ccc}{\mathrm{<figure-callout\; id="1"\; label="X\; V"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">X</figure-callout>}}_V^{}\&CircleTimes;{\mathrm{<figure-callout\; id="1"\; label="X\; H"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">X</figure-callout>}}_H^{}& \&CenterDot;\&CenterDot;\&CenterDot;& X_V^r\&CircleTimes;X_H^r\\ {\mathrm{\&alpha;}}_1{\mathrm{<figure-callout\; id="1"\; label="X\; V"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">X</figure-callout>}}_V^{}\&CircleTimes;{\mathrm{<figure-callout\; id="1"\; label="X\; H"\; filenames="HDA00002323632600012.png,HDA00002323632600021.png"\; state="\{\{state\}\}">X</figure-callout>}}_H^{}& \&CenterDot;\&CenterDot;\&CenterDot;& {\mathrm{\&alpha;}}_r{X}_V^r\&CircleTimes;X_H^r\end{array}\right]M;$

Wherein, W ₃it is three-component pre-coding matrix; α _ithat mould value is 1 complex scalar;

be wave beam forming vector, its dimension is D _v× 1,

be wave beam forming vector, its dimension is D _h× 1, i=1 ..., r, D _hand D _vfor positive integer, M is power normalization coefficient.

For mode one, if subscriber equipment pre-determines pre-coding matrix, and multiple the first component pre-coding matrixes from one of them component pre-coding matrix set, are selected, from two other component pre-coding matrix set, respectively select one-component pre-coding matrix, can from multiple the first component pre-coding matrixes, select one according to the one in formula three～formula six.

In force, formula three～formula six can also convert, and in formula above, three-component pre-coding matrix is the product of matrix and M; Part that can also be using M as the first component pre-coding matrix, the first component pre-coding matrix is the product of matrix and M, second component pre-coding matrix and three-component pre-coding matrix are matrix; Part that can also be using M as second component pre-coding matrix, second component pre-coding matrix is the product of matrix and M, the first component pre-coding matrix and three-component pre-coding matrix are that matrix can also be independent by M,

Mode two, subscriber equipment are determined at least one pre-coding matrix, and according to the corresponding relation of the first precoding indication information, the second precoding indication information, the 3rd precoding indication information and pre-coding matrix, determine the first precoding indication information, the second precoding indication information and the 3rd precoding indication information that at least one pre-coding matrix is corresponding; Notify the first precoding indication information, the second precoding indication information and the 3rd precoding indication information to network side using a first precoding indication information, a second precoding indication information and a 3rd precoding indication information in the first precoding indication information, the second precoding indication information and the 3rd precoding indication information determined as needs.

At least one pre-coding matrix that subscriber equipment is determined is the Jacobian matrix of the first component pre-coding matrix, second component pre-coding matrix and three-component pre-coding matrix.Concrete, at least one pre-coding matrix that subscriber equipment is determined is the product of the first component pre-coding matrix, second component pre-coding matrix and three-component pre-coding matrix.

Wherein, the expression formula applicable pattern two too of the first component pre-coding matrix, second component pre-coding matrix and the three-component pre-coding matrix in aforesaid way one; The first component pre-coding matrix in aforesaid way one, also applicable pattern two of the corresponding relation of second component pre-coding matrix and three-component and pre-coding matrix.

Based on same inventive concept, a kind of method of definite pre-coding matrix is also provided in the embodiment of the present invention, because network equipment in the system of definite pre-coding matrix is equipment corresponding to the method, and the principle that the method is dealt with problems is similar to network equipment in the system of definite pre-coding matrix, therefore the enforcement of the method can be referring to the enforcement of equipment, repeats part and repeat no more.

As shown in Figure 8, the embodiment of the present invention determines that the method for pre-coding matrix comprises the following steps:

Step 801, network equipment receive the first precoding indication information, the second precoding indication information and the 3rd precoding indication information from subscriber equipment;

Step 802, network equipment, according to the first precoding indication information, the second precoding indication information and the 3rd precoding indication information, are determined pre-coding matrix;

Wherein, the first precoding indication information, the second precoding indication information and the 3rd precoding indication information are corresponding with pre-coding matrix, pre-coding matrix equals the Jacobian matrix of the first component pre-coding matrix, second component pre-coding matrix and three-component pre-coding matrix, and wherein the first component pre-coding matrix is diagonal matrix; Second component pre-coding matrix is diagonal matrix; Three-component pre-coding matrix is made up of wave beam rotating vector, and it is long-pending that wave beam rotating vector equals two vectorial Kronecker.

Wherein, network equipment receives from after the first precoding indication information of subscriber equipment, the second precoding indication information and the 3rd precoding indication information, there is the multiple mode of determining pre-coding matrix according to the first precoding indication information, the second precoding indication information and the 3rd precoding indication information, enumerate several below:

Mode one, network equipment are determined the first component pre-coding matrix that the first precoding indication information is corresponding, and determine second component pre-coding matrix corresponding to the second precoding indication information, and determine three-component pre-coding matrix corresponding to the 3rd precoding indication information;

Network equipment is determined pre-coding matrix according to the one in formula three～formula six.

Concrete, network equipment is determined the first component pre-coding matrix that the first precoding indication information is corresponding, and definite second component pre-coding matrix corresponding to the second precoding indication information, and definite three-component pre-coding matrix corresponding to the 3rd precoding indication information, then the first component pre-coding matrix, second component pre-coding matrix and three-component pre-coding matrix are brought into the one in formula one～formula four, just can determine the first component pre-coding matrix that the first precoding indication information is corresponding.

Wherein, network equipment, according to according to the corresponding relation of predefined the first component pre-coding matrix and the first precoding indication information, is determined the first component pre-coding matrix corresponding to the first precoding indication information of receiving; According to the corresponding relation of predefined second component pre-coding matrix and the second precoding indication information, determine second component pre-coding matrix corresponding to the second precoding indication information of receiving; According to the corresponding relation of predefined three-component pre-coding matrix and the 3rd precoding indication information, determine three-component pre-coding matrix corresponding to the second precoding indication information of receiving.

The corresponding relation of above-mentioned component pre-coding matrix and precoding indication information can be set as required.In force, can in agreement, stipulate corresponding relation; Can also be notified by high-level signaling.

Mode two, network equipment, according to the corresponding relation of predefined the first precoding indication information, the second precoding indication information, the 3rd precoding indication information and pre-coding matrix, are determined the first precoding indication information and pre-coding matrix corresponding to the second precoding indication information received.

Wherein, the corresponding relation of the first precoding indication information, the second precoding indication information, the 3rd precoding indication information and pre-coding matrix can be set as required.In force, can in agreement, stipulate corresponding relation; Can also be notified by high-level signaling.

Network equipment determines after pre-coding matrix, the transmitting data of subscriber equipment carried out to preliminary treatment with definite pre-coding matrix.

Wherein, the horizontal dimension of the embodiment of the present invention and vertical dimension can exchange.

Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware implementation example, completely implement software example or the form in conjunction with the embodiment of software and hardware aspect.And the present invention can adopt the form at one or more upper computer programs of implementing of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code.

The present invention is with reference to describing according to flow chart and/or the block diagram of the method for the embodiment of the present invention, equipment (system) and computer program.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, the instruction that makes to carry out by the processor of computer or other programmable data processing device produces the device for realizing the function of specifying at flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame.

These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, the instruction that makes to be stored in this computer-readable memory produces the manufacture that comprises command device, and this command device is realized the function of specifying in flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame.

These computer program instructions also can be loaded in computer or other programmable data processing device, make to carry out sequence of operations step to produce computer implemented processing on computer or other programmable devices, thereby the instruction of carrying out is provided for realizing the step of the function of specifying in flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame on computer or other programmable devices.

Although described the preferred embodiments of the present invention, once those skilled in the art obtain the basic creative concept of cicada, can make other change and modification to these embodiment.So claims are intended to be interpreted as comprising preferred embodiment and fall into all changes and the modification of the scope of the invention.

Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.

Claims (39)

1. a method for transfer encoding indication information, is characterized in that, the method comprises:

Subscriber equipment is determined the first precoding indication information, the second precoding indication information and the 3rd precoding indication information, wherein the first precoding indication information, the second precoding indication information and the 3rd precoding indication information are corresponding with pre-coding matrix, described pre-coding matrix equals the Jacobian matrix of the first component pre-coding matrix, second component pre-coding matrix and three-component pre-coding matrix, and described the first component pre-coding matrix is diagonal matrix; Described second component pre-coding matrix is diagonal matrix; Described three-component pre-coding matrix is made up of wave beam rotating vector, and it is long-pending that described wave beam rotating vector equals two vectorial Crow Buddhist nun gram Kronecker;

Described subscriber equipment sends the first precoding indication information, the second precoding indication information and the 3rd precoding indication information to network side.

2. the method for claim 1, is characterized in that, described subscriber equipment is determined the first precoding indication information, the second precoding indication information and the 3rd precoding indication information, comprising:

Described subscriber equipment is selected the first component pre-coding matrix from the first component pre-coding matrix set, and definite the first precoding indication information corresponding to the first component pre-coding matrix of selecting, and select second component pre-coding matrix from the set of second component pre-coding matrix, and definite the second precoding indication information corresponding to second component pre-coding matrix of selecting, and select three-component pre-coding matrix from the set of three-component pre-coding matrix, and determine the 3rd precoding indication information corresponding to three-component pre-coding matrix of selecting.

3. method as claimed in claim 2, is characterized in that, described subscriber equipment is determined the first precoding indication information, the second precoding indication information and the 3rd precoding indication information, comprising:

Described subscriber equipment is according to the corresponding relation of predefined the first component pre-coding matrix and the first precoding indication information, determine the first precoding indication information that the first component pre-coding matrix is corresponding, and according to the corresponding relation of predefined second component pre-coding matrix and the 3rd precoding indication information, determine the second precoding indication information that second component pre-coding matrix is corresponding, and according to the corresponding relation of predefined three-component pre-coding matrix and the 3rd precoding indication information, determine the 3rd precoding indication information that three-component pre-coding matrix is corresponding.

4. the method for claim 1, is characterized in that, described subscriber equipment is determined the first precoding indication information, the second precoding indication information and the 3rd precoding indication information, comprising:

Described subscriber equipment is determined at least one pre-coding matrix, and according to the corresponding relation of the first precoding indication information, the second precoding indication information, the 3rd precoding indication information and pre-coding matrix, determine the first precoding indication information, the second precoding indication information and the 3rd precoding indication information that at least one pre-coding matrix is corresponding;

Described subscriber equipment is selected a first precoding indication information, a second precoding indication information and a 3rd precoding indication information from the first precoding indication information, the second precoding indication information and the 3rd precoding indication information determined.

5. the method as described in as arbitrary in claim 1～4, is characterized in that, the first component pre-coding matrix is:

$W_1=\left[\begin{array}{cc}\mathrm{diag}\left(U_V\right)& 0\\ 0& \mathrm{diag}\left(U_V\right)\end{array}\right];$ Or

$W_1=\left[\begin{array}{cc}\mathrm{diag}\left(U_V\right)& 0\\ 0& \mathrm{diag}\left({\mathrm{BU}}_V\right)\end{array}\right];$

Wherein, W ₁it is the first component pre-coding matrix; U _vbe wave beam forming vector, its dimension is D _v× 1; B is D _v× D _vdiagonal matrix; D _vfor positive integer; Diag (U) is the diagonal matrix being made up of vectorial U, and on its diagonal, element equals the element of vectorial U.

6. method as claimed in claim 5, is characterized in that, U _vthe set { U that wave beam forming vector forms _{v, q}: q=0,1 ..., N _van element in-1}, U _v=U _{v, n}, 0≤n≤N _v-1; N _vfor positive integer.

7. the method as described in as arbitrary in claim 1～4, is characterized in that, second component pre-coding matrix is diag (U _h) or diag (AU _h);

Wherein, U _hbe wave beam forming vector, its dimension is D _h× 1; A is D _h× D _hdiagonal matrix; D _hfor positive integer; Diag (U) is the diagonal matrix being made up of vectorial U, and on its diagonal, element equals the element of vectorial U.

8. method as claimed in claim 7, is characterized in that, U _hthe set { U that wave beam forming vector forms _{h, p}: p=0,1 ..., N _han element in-1}, U _h=U _{h, k}, 0≤k≤N _h-1, N _hfor positive integer.

9. the method as described in as arbitrary in claim 1～4, is characterized in that, three-component pre-coding matrix is (2M _hm _vthe product of) × r dimension matrix and power normalization coefficient, r is the columns of pre-coding matrix;

Described three-component pre-coding matrix is:

$W_3=\left[\begin{array}{ccc}{X}_V^1\&CircleTimes;X_H^1& \&CenterDot;\&CenterDot;\&CenterDot;& X_V^r\&CircleTimes;X_H^r\\ {\mathrm{\&alpha;}}_1{X}_V^1\&CircleTimes;X_H^1& \&CenterDot;\&CenterDot;\&CenterDot;& {\mathrm{\&alpha;}}_r{X}_V^r\&CircleTimes;X_H^r\end{array}\right]M;$

Wherein, W ₃it is three-component pre-coding matrix; α _ithat mould value is 1 complex scalar;

be wave beam forming vector, its dimension is D _v× 1,

be wave beam forming vector, its dimension is D _h× 1, i=1 ..., r, D _hand D _vfor positive integer, M is power normalization coefficient.

10. the method for claim 1, is characterized in that, described pre-coding matrix is:

$W=(W_1\&CircleTimes;W_2)\&CenterDot;W_3;$

Wherein, W is pre-coding matrix; W ₁it is the first component pre-coding matrix; W ₂it is second component pre-coding matrix; W ₃it is three-component pre-coding matrix.

The method of 11. 1 kinds of definite pre-coding matrixes, is characterized in that, the method comprises:

Network equipment receives the first precoding indication information, the second precoding indication information and the 3rd precoding indication information from subscriber equipment;

Described network equipment, according to described the first precoding indication information, the second precoding indication information and the 3rd precoding indication information, is determined pre-coding matrix;

Wherein, the first precoding indication information, the second precoding indication information and the 3rd precoding indication information are corresponding with pre-coding matrix, described pre-coding matrix equals the Jacobian matrix of the first component pre-coding matrix, second component pre-coding matrix and three-component pre-coding matrix, and wherein said the first component pre-coding matrix is diagonal matrix; Described second component pre-coding matrix is diagonal matrix; Described three-component pre-coding matrix is made up of wave beam rotating vector, and it is long-pending that described wave beam rotating vector equals two vectorial Kronecker.

12. methods as claimed in claim 11, is characterized in that, described network equipment is determined pre-coding matrix, comprising:

Described network equipment is determined the first component pre-coding matrix that the first precoding indication information is corresponding, and determine second component pre-coding matrix corresponding to the second precoding indication information, and determine three-component pre-coding matrix corresponding to the 3rd precoding indication information;

Described network equipment is using the product of the first component pre-coding matrix, second component pre-coding matrix and three-component pre-coding matrix as pre-coding matrix.

13. methods as claimed in claim 12, is characterized in that, described network equipment is determined the first component pre-coding matrix that the first precoding indication information is corresponding, comprising:

Described network equipment, according to the corresponding relation of predefined the first component pre-coding matrix and the first precoding indication information, is determined the first component pre-coding matrix corresponding to the first precoding indication information of receiving;

Described network equipment is determined the second component pre-coding matrix that the second precoding indication information is corresponding, comprising:

Described network equipment, according to the corresponding relation of predefined second component pre-coding matrix and the second precoding indication information, is determined second component pre-coding matrix corresponding to the second precoding indication information of receiving;

Described network equipment is determined three-component pre-coding matrix corresponding to the 3rd precoding indication information, comprising:

Described network equipment, according to the corresponding relation of predefined three-component pre-coding matrix and the 3rd precoding indication information, is determined three-component pre-coding matrix corresponding to the second precoding indication information of receiving.

14. methods as claimed in claim 11, is characterized in that, the first component pre-coding matrix is:

$W_1=\left[\begin{array}{cc}\mathrm{diag}\left(U_V\right)& 0\\ 0& \mathrm{diag}\left(U_V\right)\end{array}\right];$ Or

$W_1=\left[\begin{array}{cc}\mathrm{diag}\left(U_V\right)& 0\\ 0& \mathrm{diag}\left({\mathrm{BU}}_V\right)\end{array}\right];$

Wherein, W ₁it is the first component pre-coding matrix; U _vbe wave beam forming vector, its dimension is D _v× 1; B is D _v× D _vdiagonal matrix; D _vfor positive integer; Diag (U) is the diagonal matrix being made up of vectorial U, and on its diagonal, element equals the element of vectorial U.

Method described in 15. claims 14, is characterized in that, U _vthe set { U that wave beam forming vector forms _{v, q}: q=0,1 ..., N _van element in-1}, U _v=U _{v, n}, 0≤n≤N _v-1; N _vfor positive integer.

16. methods as claimed in claim 11, is characterized in that, second component pre-coding matrix is diag (U _h) or diag (AU _h);

Wherein, U _hbe wave beam forming vector, its dimension is D _h× 1; A is D _h× D _hdiagonal matrix; D _hfor positive integer; Diag (U) is the diagonal matrix being made up of vectorial U, and on its diagonal, element equals the element of vectorial U.

Method described in 17. claims 16, is characterized in that, U _hthe set { U that wave beam forming vector forms _{h, p}: p=0,1 ..., N _han element in-1}, U _h=U _{h, k}, 0≤k≤N _h-1, N _hfor positive integer.

Method described in 18. claims 11, is characterized in that, three-component pre-coding matrix is (2M _hm _vthe product of) × r dimension matrix and power normalization coefficient, r is the columns of pre-coding matrix;

Described three-component pre-coding matrix is:

$W_3=\left[\begin{array}{ccc}{X}_V^1\&CircleTimes;X_H^1& \&CenterDot;\&CenterDot;\&CenterDot;& X_V^r\&CircleTimes;X_H^r\\ {\mathrm{\&alpha;}}_1{X}_V^1\&CircleTimes;X_H^1& \&CenterDot;\&CenterDot;\&CenterDot;& {\mathrm{\&alpha;}}_r{X}_V^r\&CircleTimes;X_H^r\end{array}\right]M;$

Wherein, W ₃it is three-component pre-coding matrix; α _ithat mould value is 1 complex scalar;

be wave beam forming vector, its dimension is D _v× 1,

be wave beam forming vector, its dimension is D _h× 1, i=1 ..., r, D _hand D _vfor positive integer, M is power normalization coefficient.

Method described in 19. claims 11, is characterized in that, described network equipment is determined pre-coding matrix, comprising:

Described network equipment, according to the corresponding relation of predefined the first precoding indication information, the second precoding indication information, the 3rd precoding indication information and pre-coding matrix, is determined the first precoding indication information, the second precoding indication information and pre-coding matrix corresponding to the 3rd precoding indication information received.

The subscriber equipment of 20. 1 kinds of transfer encoding indication informations, is characterized in that, this subscriber equipment comprises:

The first determination module, for determining the first precoding indication information, the second precoding indication information and the 3rd precoding indication information, wherein the first precoding indication information, the second precoding indication information and the 3rd precoding indication information are corresponding with pre-coding matrix, described pre-coding matrix equals the Jacobian matrix of the first component pre-coding matrix, second component pre-coding matrix and three-component pre-coding matrix, and described the first component pre-coding matrix is diagonal matrix; Described second component pre-coding matrix is diagonal matrix; Described three-component pre-coding matrix is made up of wave beam rotating vector, and it is long-pending that described wave beam rotating vector equals two vectorial Kronecker;

Sending module, for sending the first precoding indication information, the second precoding indication information and the 3rd precoding indication information to network side.

21. subscriber equipmenies as claimed in claim 20, is characterized in that, described the first determination module specifically for:

From the first component pre-coding matrix set, select the first component pre-coding matrix, and definite the first precoding indication information corresponding to the first component pre-coding matrix of selecting, and select second component pre-coding matrix from the set of second component pre-coding matrix, and definite the second precoding indication information corresponding to second component pre-coding matrix of selecting, and select three-component pre-coding matrix from the set of three-component pre-coding matrix, and determine the 3rd precoding indication information corresponding to three-component pre-coding matrix of selecting.

22. subscriber equipmenies as claimed in claim 21, is characterized in that, described the first determination module specifically for:

According to the corresponding relation of predefined the first component pre-coding matrix and the first precoding indication information, determine the first precoding indication information that the first component pre-coding matrix is corresponding, and according to the corresponding relation of predefined second component pre-coding matrix and the 3rd precoding indication information, determine the second precoding indication information that second component pre-coding matrix is corresponding, and according to the corresponding relation of predefined three-component pre-coding matrix and the 3rd precoding indication information, determine the 3rd precoding indication information that three-component pre-coding matrix is corresponding.

23. subscriber equipmenies as claimed in claim 20, is characterized in that, described the first determination module specifically for:

Determine at least one pre-coding matrix, and according to the corresponding relation of the first precoding indication information, the second precoding indication information, the 3rd precoding indication information and pre-coding matrix, determine the first precoding indication information, the second precoding indication information and the 3rd precoding indication information that at least one pre-coding matrix is corresponding; From the first precoding indication information, the second precoding indication information and the 3rd precoding indication information determined, select a first precoding indication information, a second precoding indication information and a 3rd precoding indication information.

24. subscriber equipmenies as described in as arbitrary in claim 20～23, is characterized in that, the first component pre-coding matrix is:

$W_1=\left[\begin{array}{cc}\mathrm{diag}\left(U_V\right)& 0\\ 0& \mathrm{diag}\left(U_V\right)\end{array}\right];$ Or

$W_1=\left[\begin{array}{cc}\mathrm{diag}\left(U_V\right)& 0\\ 0& \mathrm{diag}\left({\mathrm{BU}}_V\right)\end{array}\right];$

Wherein, W ₁it is the first component pre-coding matrix; U _vbe wave beam forming vector, its dimension is D _v× 1; B is D _v× D _vdiagonal matrix; D _vfor positive integer; Diag (U) is the diagonal matrix being made up of vectorial U, and on its diagonal, element equals the element of vectorial U.

25. subscriber equipmenies as claimed in claim 24, is characterized in that U _vthe set { U that wave beam forming vector forms _{v, q}: q=0,1 ..., N _van element in-1}, U _v=U _{v, n}, 0≤n≤N _v-1; N _vfor positive integer.

26. subscriber equipmenies as described in as arbitrary in claim 20～23, is characterized in that, second component pre-coding matrix is diag (U _h) or diag (AU _h);

Wherein, U _hbe wave beam forming vector, its dimension is D _h× 1; A is D _h× D _hdiagonal matrix; D _hfor positive integer; Diag (U) is the diagonal matrix being made up of vectorial U, and on its diagonal, element equals the element of vectorial U.

27. subscriber equipmenies as claimed in claim 26, is characterized in that U _hthe set { U that wave beam forming vector forms _{h, p}: p=0,1 ..., N _han element in-1}, U _h=U _{h, k}, 0≤k≤N _h-1, N _hfor positive integer.

28. subscriber equipmenies as described in as arbitrary in claim 20～23, is characterized in that, three-component pre-coding matrix is (2M _hm _vthe product of) × r dimension matrix and power normalization coefficient, r is the columns of pre-coding matrix;

Described three-component pre-coding matrix is:

$W_3=\left[\begin{array}{ccc}{X}_V^1\&CircleTimes;X_H^1& \&CenterDot;\&CenterDot;\&CenterDot;& X_V^r\&CircleTimes;X_H^r\\ {\mathrm{\&alpha;}}_1{X}_V^1\&CircleTimes;X_H^1& \&CenterDot;\&CenterDot;\&CenterDot;& {\mathrm{\&alpha;}}_r{X}_V^r\&CircleTimes;X_H^r\end{array}\right]M;$

Wherein, W ₃it is three-component pre-coding matrix; α _ithat mould value is 1 complex scalar;

be wave beam forming vector, its dimension is D _v× 1, be wave beam forming vector, its dimension is D _h× 1, i=1 ..., r, D _hand D _vfor positive integer, M is power normalization coefficient.

29. subscriber equipmenies as claimed in claim 20, is characterized in that, described pre-coding matrix is:

$W=(W_1\&CircleTimes;W_2)\&CenterDot;W_3;$

Wherein, W is pre-coding matrix; W ₁it is the first component pre-coding matrix; W ₂it is second component pre-coding matrix; W ₃it is three-component pre-coding matrix.

The network equipment of 30. 1 kinds of definite pre-coding matrixes, is characterized in that, this network equipment comprises:

Receiver module, for receiving the first precoding indication information, the second precoding indication information and the 3rd precoding indication information from subscriber equipment;

The second determination module, for according to described the first precoding indication information, the second precoding indication information and the 3rd precoding indication information, determines pre-coding matrix;

Wherein, the first precoding indication information, the second precoding indication information and the 3rd precoding indication information are corresponding with pre-coding matrix, described pre-coding matrix equals the Jacobian matrix of the first component pre-coding matrix, second component pre-coding matrix and three-component pre-coding matrix, and wherein said the first component pre-coding matrix is diagonal matrix; Described second component pre-coding matrix is diagonal matrix; Described three-component pre-coding matrix is made up of wave beam rotating vector, and it is long-pending that described wave beam rotating vector equals two vectorial Kronecker.

31. network equipments as claimed in claim 30, is characterized in that, described the second determination module specifically for:

Determine the first component pre-coding matrix that the first precoding indication information is corresponding, and determine second component pre-coding matrix corresponding to the second precoding indication information, and determine three-component pre-coding matrix corresponding to the 3rd precoding indication information; Using the product of the first component pre-coding matrix, second component pre-coding matrix and three-component pre-coding matrix as pre-coding matrix.

32. network equipments as claimed in claim 31, is characterized in that, described the second determination module specifically for:

According to the corresponding relation of predefined the first component pre-coding matrix and the first precoding indication information, determine the first component pre-coding matrix corresponding to the first precoding indication information of receiving; According to the corresponding relation of predefined second component pre-coding matrix and the second precoding indication information, determine second component pre-coding matrix corresponding to the second precoding indication information of receiving; According to the corresponding relation of predefined three-component pre-coding matrix and the 3rd precoding indication information, determine three-component pre-coding matrix corresponding to the second precoding indication information of receiving.

33. network equipments as claimed in claim 30, is characterized in that, the first component pre-coding matrix is:

$W_1=\left[\begin{array}{cc}\mathrm{diag}\left(U_V\right)& 0\\ 0& \mathrm{diag}\left(U_V\right)\end{array}\right];$ Or

$W_1=\left[\begin{array}{cc}\mathrm{diag}\left(U_V\right)& 0\\ 0& \mathrm{diag}\left({\mathrm{BU}}_V\right)\end{array}\right];$

Wherein, W ₁it is the first component pre-coding matrix; U _vbe wave beam forming vector, its dimension is D _v× 1; B is D _v× D _vdiagonal matrix; D _vfor positive integer; Diag (U) is the diagonal matrix being made up of vectorial U, and on its diagonal, element equals the element of vectorial U.

Network equipment described in 34. claims 33, is characterized in that, U _vthe set { U that wave beam forming vector forms _{v, q}: q=0,1 ..., N _van element in-1}, U _v=U _{v, n}, 0≤n≤N _v-1; N _vfor positive integer.

35. network equipments as claimed in claim 30, is characterized in that, second component pre-coding matrix is diag (U _h) or diag (AU _h);

Wherein, U _hbe wave beam forming vector, its dimension is D _h× 1; A is D _h× D _hdiagonal matrix; D _hfor positive integer; Diag (U) is the diagonal matrix being made up of vectorial U, and on its diagonal, element equals the element of vectorial U.

Network equipment described in 36. claims 35, is characterized in that, U _hthe set { U that wave beam forming vector forms _{h, p}: p=0,1 ..., N _han element in-1}, U _h=U _{h, k}, 0≤k≤N _h-1, N _hfor positive integer.

Network equipment described in 37. claims 30, is characterized in that, three-component pre-coding matrix is (2M _hm _vthe product of) × r dimension matrix and power normalization coefficient, r is the columns of pre-coding matrix;

Described three-component pre-coding matrix is:

$W_3=\left[\begin{array}{ccc}{X}_V^1\&CircleTimes;X_H^1& \&CenterDot;\&CenterDot;\&CenterDot;& X_V^r\&CircleTimes;X_H^r\\ {\mathrm{\&alpha;}}_1{X}_V^1\&CircleTimes;X_H^1& \&CenterDot;\&CenterDot;\&CenterDot;& {\mathrm{\&alpha;}}_r{X}_V^r\&CircleTimes;X_H^r\end{array}\right]M;$

Wherein, W ₃it is three-component pre-coding matrix; α _ithat mould value is 1 complex scalar;

be wave beam forming vector, its dimension is D _v× 1, be wave beam forming vector, its dimension is D _h× 1, i=1 ..., r, D _hand D _vfor positive integer, M is power normalization coefficient.

Network equipment described in 38. claims 30, is characterized in that, described the second determination module specifically for:

According to the corresponding relation of predefined the first precoding indication information, the second precoding indication information, the 3rd precoding indication information and pre-coding matrix, determine the first precoding indication information, the second precoding indication information and pre-coding matrix corresponding to the 3rd precoding indication information received.

The system of 39. 1 kinds of definite pre-coding matrixes, is characterized in that, this system comprises:

Subscriber equipment, for determining the first precoding indication information, the second precoding indication information and the 3rd precoding indication information, send the first precoding indication information to network side, the second precoding indication information and the 3rd precoding indication information, wherein the first precoding indication information, the second precoding indication information and the 3rd precoding indication information are corresponding with pre-coding matrix, described pre-coding matrix equals the first component pre-coding matrix, the Jacobian matrix of second component pre-coding matrix and three-component pre-coding matrix, described the first component pre-coding matrix is diagonal matrix, described second component pre-coding matrix is diagonal matrix, described three-component pre-coding matrix is made up of wave beam rotating vector, and it is long-pending that described wave beam rotating vector equals two vectorial Kronecker,

Network equipment, for receiving the first precoding indication information, the second precoding indication information and the 3rd precoding indication information from subscriber equipment; According to described the first precoding indication information, the second precoding indication information and the 3rd precoding indication information, determine pre-coding matrix.

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