CN105871515A - Channel state information feedback method, downlink reference signal transmitting method and device - Google Patents

Abstract

The invention discloses a channel state information feedback method, a downlink reference signal transmitting method and a downlink reference signal transmitting device. According to the technical schemes provided by the embodiments of the invention, a base station groups antenna ports in a horizontal dimension and/or a vertical dimension respectively, sends horizontal-dimension downlink reference signals at antenna port groups in the horizontal dimension, and/or transmits of vertical-dimension downlink reference signals at antenna port groups in the vertical dimension; and user equipment obtains a horizontal-dimension measurement channel matrix and/or a vertical-dimension measurement channel matrix according to the downlink reference signals which are corresponding to the antenna port groups and received at the horizontal dimension and the vertical dimension, and the feedback of channel state information can be carried out; and therefore, problems in channel state information feedback under a large-scale antenna array condition can be solved.

Description

A kind of channel state information feedback method, downlink reference signal method and device

Technical field

The present invention relates to communication technical field, particularly relate to a kind of channel state information feedback method, descending ginseng Examine signaling method and device.

Background technology

In Long Term Evolution (Long Term Evolution, LTE) version (Rel)-8, at most can prop up Hold multiple-input and multiple-output (Multi Input Multi Output, the MIMO) transmission of 4 layers.Rel-9 emphasis Multiuser MIMO (Multi-User MIMO, MU-MIMO) technology is strengthened, is transmitted mould In MU-MIMO (Multi-User MIMO) transmission of formula (Transmission Mode, TM)-8 How can support 4 downlink data layers.Rel-10 is then by 8 port channel quality information reference signals (Channel State Information-Reference Signals, CSI-RS), user-specific reference signal (UE-specific Reference Signal, URS) further increases letter with the introducing of multi-granule code book Channel state information measure spatial resolution, and further by Single User MIMO (Single-User MIMO, SU-MIMO) transmittability extends to most 8 data Layers.The performance gain source of mimo system Spatial degrees of freedom is can be obtained with in antenna system.Spatial degrees of freedom mentioned here i.e. antenna system is supported CSI-RS port number.Up to the present, standard could support up 8 CSI-RS for antenna system Port, i.e. can be obtained with spatial degrees of freedom maximum capacity for antenna system and supports 8.

Measure and feeding back channel state information (Channel State based on downlink reference signal for using Information, CSI) the communication system of mechanism, subscriber equipment (User Equipment, UE) will be to Base station feedback precoding matrix codebook index (Precoding Matrix Indicator, PMI), rank indication information (Rank Indicator, RI) and channel quality information (Channel Quality Indicator, CQI).UE PMI, RI and the CQI of feedback, then be by the channel information institute obtained measured by CSI-RS based on UE Calculated.This channel information should include the information of all CSI-RS ports of antenna system, ability Make full use of the spatial degrees of freedom of antenna system.

Extensive antenna is to have extensive transceiver and the aerial array of extensive antenna oscillator composition, its In, antenna spatial degrees of freedom is much larger than 8, such as 16,32,64,128,256,512 etc..This situation Under, the spatial resolution that channel condition information is measured directly depends on CSI-RS port number, i.e. needs to prop up The CSI-RS port number held is much larger than 8.

Generally large-scale antenna array is by the N of horizontal dimensions_hWith vertical dimensions N_vIndividual antenna oscillator and radio frequency Device composition N_H×N_VThe extensive active antenna array of the plane configuration of dimension degree of freedom.Work as N_h≤ 8, and N_vWhen≤8,2 set CSI-RS ports can be used to be allocated to a UE, to guarantee that UE can measure aerial system All spatial degrees of freedom of system.And UE is to a pair CSIs of base station feedback.In this pair CSIs one right Answer the string N of extensive active antenna_vIndividual antenna port, another one correspond to extensive active antenna Row of N_hIndividual antenna port.This 2 set CSI-RS port can be only fitted to same subframe, it is also possible to is arranged in Different subframes.This 2 set CSI-RS port measures vertical dimensions row channel (H respectively_v) and horizontal dimensions row Channel (H_h).By measuring to obtain vertical dimensions row channel (H_v) and horizontal dimensions row channel H_hCan calculate Obtain PMI, RI and CQI.

8 spatial degrees of freedom can only be supported owing to often overlapping CSI-RS port maximum, therefore, work as N_h> 8, or N_v> 8 time, in order to ensure the spatial resolution that downlink channel condition information is measured, new descending ginseng can be introduced Examine signal port, but significant running time-frequency resource expense will be brought.If limiting downlink reference signal port number, Again it cannot be guaranteed that the spatial resolution measured of downlink channel condition information, thus cannot play extensive (massive) performance advantage of MIMO.

Summary of the invention

It is an object of the invention to provide a kind of channel state information feedback method, downlink reference signal sending method And device, exceed, with the horizontal dimensions and/or vertical dimensions solving aerial array, the descending reference letter that system is supported During number port number, the problem how to carry out information feedback.

It is an object of the invention to be achieved through the following technical solutions:

A kind of channel state information feedback method, including:

Receive horizontal dimensions downlink reference signal, and determine level according to described horizontal dimensions downlink reference signal The measurement channel matrix of dimension；And, receive vertical dimensions downlink reference signal, and according to described vertical dimension Degree downlink reference signal determines the measurement channel matrix of vertical dimensions；

Wherein, receive horizontal dimensions downlink reference signal, and true according to described horizontal dimensions downlink reference signal Determine the measurement channel matrix of horizontal dimensions, including: base station configuration the horizontal dimensions measurement cycle in each Receive horizontal dimensions downlink reference signal respectively in the subframe of side-play amount instruction, connect according in each described subframe The horizontal dimensions downlink reference signal received obtains each horizontal dimensions group channel matrix respectively, and according to respectively Individual horizontal dimensions group channel matrix, determines the measurement channel matrix of horizontal dimensions；And/or under reception vertical dimensions Row reference signal, and the measurement channel square of vertical dimensions is determined according to described vertical dimensions downlink reference signal Battle array, including: in the subframe of each side-play amount instruction within the vertical dimensions measurement cycle of base station configuration respectively Receive vertical dimensions downlink reference signal, according to the vertical dimensions descending reference received in each described subframe Signal obtains each vertical dimensions group channel matrix respectively, and according to each vertical dimensions group channel matrix, Determine the measurement channel matrix of vertical dimensions；Receive in each described subframe within the identical dimensional measurement cycle One group of antenna port of the described dimension downlink reference signal that arrives corresponding described dimension respectively, described dimension each Group antenna port is that at least a line or the packet of array antenna port of described dimension are determined by described base station；

Measurement channel matrix according to horizontal dimensions and the measurement channel matrix of vertical dimensions, determine three dimensions Channel matrix；

According to three dimensions channel matrix, determine channel condition information, and by anti-for the channel condition information that determines Feed described base station.

Preferably, often between group antenna port and the often group antenna port of adjacent described dimension of identical dimensional All there is the antenna port of a repeated measure.Accordingly, according to dimension group channel matrix each described, determine The measurement channel matrix of described dimension includes:

Dimension group channel matrix each described is modified；

According to each described dimension group channel matrix revised, determine the measurement channel matrix of described dimension.

Wherein, being modified dimension group channel matrix each described, its a kind of implementation may is that

Obtain according to measured by the antenna port of the described repeated measure often organizing antenna port of described dimension respectively To antenna port channel information, dimension group channel matrix each described is modified, obtain revised respectively Individual horizontal dimensions group channel matrix.

Based on above-mentioned any means embodiment, according to each described dimension group channel matrix revised, determine The measurement channel matrix of described dimension, its a kind of implementation may is that from each described dimension revised Group channel matrix removes the channel information of the antenna port of described repeated measure, determines the measurement letter of described dimension Road matrix.

A kind of sending method of downlink reference signal, including:

At least a line antenna port of horizontal dimensions is grouped, and/or by least string sky of vertical dimensions Line cap is grouped；

Measure the cycle for user equipment allocation horizontal dimensions, and measure week for user equipment allocation vertical dimensions Phase；

Distribute in horizontal dimensions for the horizontal dimensions downlink reference signal on each group antenna port of horizontal dimensions Side-play amount in the measurement cycle；And/or, for the descending ginseng of vertical dimensions on each group antenna port of vertical dimensions Examine signal distribution side-play amount within the vertical dimensions measurement cycle；

What horizontal dimensions measured cycle and vertical dimensions measure in cycle, and horizontal dimensions measurement cycle is each Individual side-play amount and/or each side-play amount in the vertical dimensions measurement cycle are sent to described subscriber equipment；

Horizontal dimensions downlink reference signal is sent within the horizontal dimensions measurement cycle；Wherein, tie up if level Horizontal dimensions downlink reference signal on each group antenna port of degree was assigned with within the horizontal dimensions measurement cycle Side-play amount, within the horizontal dimensions measurement cycle send horizontal dimensions downlink reference signal, including: in level In the subframe of each side-play amount instruction in the dimension measurement cycle, that passes through horizontal dimensions respectively respectively organizes antenna end Mouth sends horizontal dimensions downlink reference signal；

Vertical dimensions downlink reference signal is sent within the vertical dimensions measurement cycle；Wherein, if vertical dimension Vertical dimensions downlink reference signal on each group antenna port of degree was assigned with within the vertical dimensions measurement cycle Side-play amount, within the vertical dimensions measurement cycle send vertical dimensions downlink reference signal, including: vertically In the subframe of each side-play amount instruction in the dimension measurement cycle, that passes through vertical dimensions respectively respectively organizes antenna end Mouth sends vertical dimensions downlink reference signal.

Preferably, often between group antenna port and the often group antenna port of adjacent horizontal dimensions of horizontal dimensions All there is an antenna port repeated, the often group antenna port of vertical dimensions and the often group of adjacent vertical dimensions An antenna port repeated all is had between antenna port.

Wherein, at least a line antenna port of horizontal dimensions is grouped, and/or by vertical dimensions at least String antenna port is grouped, and its a kind of implementation may is that

Determine the number of packet of at least a line antenna port of described horizontal dimensions；

Determine the antenna port quantity that each group antenna port of horizontal dimensions includes；

The number of packet of at least a line antenna port according to described horizontal dimensions and described horizontal dimensions every The antenna port quantity that group antenna port includes, is grouped at least a line antenna port of described horizontal dimensions, Wherein, the often group antenna port of horizontal dimensions is arranged in horizontal dimensions continuously；

And/or,

Determine the number of packet of at least string antenna port of described vertical dimensions；

Determine the antenna port quantity that each group antenna port of vertical dimensions includes；

The number of packet of at least string antenna port according to described vertical dimensions and described vertical dimensions each The antenna port quantity that group antenna port includes, is grouped at least string antenna port of described vertical dimensions, Wherein, the often group antenna port of vertical dimensions is arranged the most continuously.

Based on the inventive concept as method, the embodiment of the present invention also provides for a kind of information feedback Device, including:

Measure channel matrix and determine module, be used for receiving horizontal dimensions downlink reference signal, and according to described water Flat dimension downlink reference signal determines the measurement channel matrix of horizontal dimensions；And, receive vertical dimensions descending Reference signal, and the measurement channel matrix of vertical dimensions is determined according to described vertical dimensions downlink reference signal；

Wherein, receive horizontal dimensions downlink reference signal, and true according to described horizontal dimensions downlink reference signal Determine the measurement channel matrix of horizontal dimensions, including: base station configuration the horizontal dimensions measurement cycle in each Receive horizontal dimensions downlink reference signal respectively in the subframe of side-play amount instruction, connect according in each described subframe The horizontal dimensions downlink reference signal received obtains each horizontal dimensions group channel matrix respectively, and according to respectively Individual horizontal dimensions group channel matrix, determines the measurement channel matrix of horizontal dimensions；And/or under reception vertical dimensions Row reference signal, and the measurement channel square of vertical dimensions is determined according to described vertical dimensions downlink reference signal Battle array, including: in the subframe of each side-play amount instruction within the vertical dimensions measurement cycle of base station configuration respectively Receive vertical dimensions downlink reference signal, according to the vertical dimensions descending reference received in each described subframe Signal obtains each vertical dimensions group channel matrix respectively, and according to each vertical dimensions group channel matrix, Determine the measurement channel matrix of vertical dimensions；Receive in each described subframe within the identical dimensional measurement cycle One group of antenna port of the described dimension downlink reference signal that arrives corresponding described dimension respectively, described dimension each Group antenna port is that at least a line or the packet of array antenna port of described dimension are determined by described base station；

Three dimensions channel matrix determines module, for the measurement channel matrix according to horizontal dimensions and vertical dimension The measurement channel matrix of degree, determines three dimensions channel matrix；

Channel condition information determines and feedback module, for according to three dimensions channel matrix, determines channel shape State information, and give described base station by the information feedback that determines.

Preferably, often between group antenna port and the often group antenna port of adjacent described dimension of identical dimensional All there is the antenna port of a repeated measure；According to dimension group channel matrix each described, determine described dimension Measurement channel matrix time, measure channel matrix determine module for:

Dimension group channel matrix each described is modified；

According to each described dimension group channel matrix revised, determine the measurement channel matrix of described dimension.

Wherein, to when dimension group channel matrix is modified each described, measures channel matrix and determine that module is used In:

Obtain according to measured by the antenna port of the described repeated measure often organizing antenna port of described dimension respectively To antenna port channel information, dimension group channel matrix each described is modified, obtain revised respectively Individual described dimension group channel matrix.

Based on above-mentioned any device embodiment, wherein, according to each described dimension group channel matrix revised, When determining the measurement channel matrix of described dimension, measure channel matrix determine module for:

The letter of the antenna port of described repeated measure is removed from each described dimension group channel matrix revised Road information, determines the measurement channel matrix of described dimension.

Based on the inventive concept as method, the embodiment of the present invention also provides for a kind of UE, including:

Processor, for reading the program in memorizer, performs following process:

Receive horizontal dimensions downlink reference signal, and determine level according to described horizontal dimensions downlink reference signal The measurement channel matrix of dimension；And, receive vertical dimensions downlink reference signal, and according to described vertical dimension Degree downlink reference signal determines the measurement channel matrix of vertical dimensions；

Wherein, receive horizontal dimensions downlink reference signal, and true according to described horizontal dimensions downlink reference signal Determine the measurement channel matrix of horizontal dimensions, including: base station configuration the horizontal dimensions measurement cycle in each Receive horizontal dimensions downlink reference signal respectively in the subframe of side-play amount instruction, connect according in each described subframe The horizontal dimensions downlink reference signal received obtains each horizontal dimensions group channel matrix respectively, and according to respectively Individual horizontal dimensions group channel matrix, determines the measurement channel matrix of horizontal dimensions；And/or under reception vertical dimensions Row reference signal, and the measurement channel square of vertical dimensions is determined according to described vertical dimensions downlink reference signal Battle array, including: in the subframe of each side-play amount instruction within the vertical dimensions measurement cycle of base station configuration respectively Receive vertical dimensions downlink reference signal, according to the vertical dimensions descending reference received in each described subframe Signal obtains each vertical dimensions group channel matrix respectively, and according to each vertical dimensions group channel matrix, Determine the measurement channel matrix of vertical dimensions；Receive in each described subframe within the identical dimensional measurement cycle One group of antenna port of the described dimension downlink reference signal that arrives corresponding described dimension respectively, described dimension each Group antenna port is that at least a line or the packet of array antenna port of described dimension are determined by described base station；

Measurement channel matrix according to horizontal dimensions and the measurement channel matrix of vertical dimensions, determine three dimensions Channel matrix；

According to three dimensions channel matrix, determine channel condition information, and by anti-for the channel condition information that determines Feed described base station；

Transceiver, for receiving under the control of a processor and sending data；

Memorizer, for preserving the data used when processor performs operation.

Preferably, often between group antenna port and the often group antenna port of adjacent described dimension of identical dimensional All there is the antenna port of a repeated measure.Accordingly, according to dimension group channel matrix each described, determine During the measurement channel matrix of described dimension, processor, for reading the program in memorizer, performs following process:

Dimension group channel matrix each described is modified；

According to each described dimension group channel matrix revised, determine the measurement channel matrix of described dimension.

Wherein, to when each described, dimension group channel matrix is modified, processor is used for reading in memorizer Program, perform following process:

Obtain according to measured by the antenna port of the described repeated measure often organizing antenna port of described dimension respectively To antenna port channel information, dimension group channel matrix each described is modified, obtain revised respectively Individual described dimension group channel matrix.

Based on above-mentioned any device embodiment, wherein, according to each described dimension group channel matrix revised, When determining the measurement channel matrix of described dimension, processor, for reading the program in memorizer, performs following Process:

The letter of the antenna port of described repeated measure is removed from each described dimension group channel matrix revised Road information, determines the measurement channel matrix of described dimension.

Based on the inventive concept as method, the embodiment of the present invention also provides for sending out of a kind of downlink reference signal Send device, including:

Antenna port grouping module, at least a line antenna port of horizontal dimensions is grouped, and/ Or at least string antenna port of vertical dimensions is grouped；

Reference signal resource distribution module, for measuring the cycle for user equipment allocation horizontal dimensions, and for using Family equipment distribution vertical dimensions measures the cycle；

Side-play amount distribution module, for each horizontal dimensions descending reference organized on antenna port for horizontal dimensions Signal distribution side-play amount within the horizontal dimensions measurement cycle；And/or, respectively organize antenna port for vertical dimensions On vertical dimensions downlink reference signal distribution side-play amount within the vertical dimensions measurement cycle；

Configuration information sending module, measures the cycle for horizontal dimensions is measured cycle and vertical dimensions, and Each side-play amount in the horizontal dimensions measurement cycle and/or each side-play amount in the vertical dimensions measurement cycle are sent out Give described subscriber equipment；

Horizontal dimensions reference signal sending module, for sending under horizontal dimensions within the horizontal dimensions measurement cycle Row reference signal；Wherein, if the horizontal dimensions descending reference letter on each group antenna port of horizontal dimensions Number it is assigned with the side-play amount within the horizontal dimensions measurement cycle, within the horizontal dimensions measurement cycle, sends level dimension Degree downlink reference signal, including: in the subframe of each side-play amount instruction within the horizontal dimensions measurement cycle, Horizontal dimensions downlink reference signal is sent respectively by each group antenna port of horizontal dimensions；

Vertical dimensions reference signal sending module, for sending under vertical dimensions within the vertical dimensions measurement cycle Row reference signal；Wherein, if the vertical dimensions descending reference letter on each group antenna port of vertical dimensions Number it is assigned with the side-play amount within the vertical dimensions measurement cycle, within the vertical dimensions measurement cycle, sends vertical dimension Degree downlink reference signal, including: in the subframe of each side-play amount instruction within the vertical dimensions measurement cycle, Vertical dimensions downlink reference signal is sent respectively by each group antenna port of vertical dimensions.

Preferably, often between group antenna port and the often group antenna port of adjacent horizontal dimensions of horizontal dimensions All there is an antenna port repeated, the often group antenna port of vertical dimensions and the often group of adjacent vertical dimensions An antenna port repeated all is had between antenna port.

Wherein, described antenna port grouping module specifically for:

Determine the number of packet of at least a line antenna port of described horizontal dimensions；

Determine the antenna port quantity that each group antenna port of horizontal dimensions includes；

The number of packet of at least a line antenna port according to described horizontal dimensions and described horizontal dimensions every The antenna port quantity that group antenna port includes, is grouped at least a line antenna port of described horizontal dimensions, Wherein, the often group antenna port of horizontal dimensions is arranged in horizontal dimensions continuously；

And/or,

Determine the number of packet of at least string antenna port of described vertical dimensions；

Determine the antenna port quantity that each group antenna port of vertical dimensions includes；

The number of packet of at least string antenna port according to described vertical dimensions and described vertical dimensions each The antenna port quantity that group antenna port includes, is grouped at least string antenna port of described vertical dimensions, Wherein, the often group antenna port of vertical dimensions is arranged the most continuously.

Based on the inventive concept as method, the embodiment of the present invention provides a kind of base station, including:

Processor, for reading the program in memorizer, performs following process:

At least a line antenna port of horizontal dimensions is grouped, and/or by least string sky of vertical dimensions Line cap is grouped；

Measure the cycle for user equipment allocation horizontal dimensions, and measure week for user equipment allocation vertical dimensions Phase；

Distribute in horizontal dimensions for the horizontal dimensions downlink reference signal on each group antenna port of horizontal dimensions Side-play amount in the measurement cycle；And/or, for the descending ginseng of vertical dimensions on each group antenna port of vertical dimensions Examine signal distribution side-play amount within the vertical dimensions measurement cycle；

What horizontal dimensions measured cycle and vertical dimensions measure in cycle, and horizontal dimensions measurement cycle is each Individual side-play amount and/or each side-play amount in the vertical dimensions measurement cycle are sent to described subscriber equipment；

Horizontal dimensions downlink reference signal is sent within the horizontal dimensions measurement cycle；Wherein, tie up if level Horizontal dimensions downlink reference signal on each group antenna port of degree was assigned with within the horizontal dimensions measurement cycle Side-play amount, within the horizontal dimensions measurement cycle send horizontal dimensions downlink reference signal, including: in level In the subframe of each side-play amount instruction in the dimension measurement cycle, that passes through horizontal dimensions respectively respectively organizes antenna end Mouth sends horizontal dimensions downlink reference signal；

Vertical dimensions downlink reference signal is sent within the vertical dimensions measurement cycle；Wherein, if vertical dimension Vertical dimensions downlink reference signal on each group antenna port of degree was assigned with within the vertical dimensions measurement cycle Side-play amount, within the vertical dimensions measurement cycle send vertical dimensions downlink reference signal, including: vertically In the subframe of each side-play amount instruction in the dimension measurement cycle, that passes through vertical dimensions respectively respectively organizes antenna end Mouth sends vertical dimensions downlink reference signal；

Transceiver, for receiving under the control of a processor and sending data；

Memorizer, for preserving the data used when processor performs operation.

Preferably, often between group antenna port and the often group antenna port of adjacent horizontal dimensions of horizontal dimensions All there is an antenna port repeated, the often group antenna port of vertical dimensions and the often group of adjacent vertical dimensions An antenna port repeated all is had between antenna port.

Wherein, at least a line antenna port of horizontal dimensions is grouped, and/or by vertical dimensions at least When string antenna port is grouped, processor for reading the program in memorizer, performs following process:

Determine the number of packet of at least a line antenna port of described horizontal dimensions；

Determine the antenna port quantity that each group antenna port of horizontal dimensions includes；

The number of packet of at least a line antenna port according to described horizontal dimensions and described horizontal dimensions every The antenna port quantity that group antenna port includes, is grouped at least a line antenna port of described horizontal dimensions, Wherein, the often group antenna port of horizontal dimensions is arranged in horizontal dimensions continuously；

And/or,

Determine the number of packet of at least string antenna port of described vertical dimensions；

Determine the antenna port quantity that each group antenna port of vertical dimensions includes；

The number of packet of at least string antenna port according to described vertical dimensions and described vertical dimensions each The antenna port quantity that group antenna port includes, is grouped at least string antenna port of described vertical dimensions, Wherein, the often group antenna port of vertical dimensions is arranged the most continuously.

The embodiment of the present invention provide technical scheme, base station respectively in horizontal dimensions and/or vertical dimensions to sky Line cap is grouped, and each group antenna port in horizontal dimensions sends horizontal dimensions descending reference letter respectively Number, and/or each group antenna port transmission vertical dimensions downlink reference signal in vertical dimensions.Subscriber equipment root Respectively organize, according to what horizontal dimensions and/or vertical dimensions received, the downlink reference signal that antenna port is corresponding, obtain water The measurement channel matrix of flat dimension and/or vertical dimensions, and then carry out the feedback of channel condition information, solve Under large-scale antenna array scene, the problem of information feedback.It is less than when often organizing antenna port number Existing system support downlink reference signal port number time, it is possible to use existing CSI-RS configure into The feedback of row channel condition information.It should be pointed out that, the scheme that the embodiment of the present invention provides is equally applicable to Often group antenna port number exceedes the situation of the downlink reference signal port number that existing system is supported.In this situation Under, need to configure new reference signal resource, to support the feedback of channel condition information.

Accompanying drawing explanation

The downlink reference signal sending method flow chart that Fig. 1 provides for the embodiment of the present invention；

Antenna port packet mode schematic diagram in the dual-polarized antenna array that Fig. 2 provides for the embodiment of the present invention；

Antenna port packet mode schematic diagram in the single-polarized antenna array that Fig. 3 provides for the embodiment of the present invention；

A kind of CSI-RS packet that the embodiment of the present invention that Fig. 4 provides for the embodiment of the present invention provides is joined Put scheme schematic diagram；

The channel state information feedback method flow chart that Fig. 5 provides for the embodiment of the present invention；

A kind of horizontal dimensions channel measuring method schematic diagram that Fig. 6 provides for the embodiment of the present invention；

A kind of vertical dimensions channel measuring method schematic diagram that Fig. 7 provides for the embodiment of the present invention；

The information feedback device schematic diagram that Fig. 8 provides for the embodiment of the present invention；

A kind of UE structural representation that Fig. 9 provides for the embodiment of the present invention；

The dispensing device schematic diagram of the downlink reference signal that Figure 10 provides for the embodiment of the present invention；

The architecture of base station schematic diagram that Figure 11 provides for the embodiment of the present invention.

Detailed description of the invention

The technical scheme that the embodiment of the present invention provides, base station can be supported less than existing system with port number Based on the CSI-RS of port number, it is achieved to UE configurating downlink with reference to letter in extensive antenna system Number.UE estimates determine channel condition information and feed back according to the channel of antenna for base station to UE.

Below in conjunction with accompanying drawing, the base station side provided the embodiment of the present invention respectively carries out downlink reference signal and sends out The implementation sent, and UE side carries out the implementation of information feedback and illustrates.

Base station side sends the implementation of downlink reference signal as it is shown in figure 1, specifically include following operation:

Step 100, at least a line antenna port of horizontal dimensions is grouped, and/or by described vertical dimension At least string antenna port of degree is grouped.

In the embodiment of the present invention, for single-polarized antenna oscillator, an antenna oscillator has an antenna port； For dual-polarized antenna vibrator, an antenna oscillator has two antenna ports.

In the embodiment of the present invention, the selection of antenna port carrying out being grouped can be arbitrary, it is also possible to be by Select according to preset rules.

Step 110, measure the cycle for user equipment allocation horizontal dimensions, and be user equipment allocation vertical dimension The degree measurement cycle.

Preferably, it is also under the downlink reference signal resource of user equipment allocation horizontal dimensions and vertical dimensions Row reference signal resource.

Step 120, exist for the horizontal dimensions downlink reference signal distribution on each group antenna port of horizontal dimensions Side-play amount in the horizontal dimensions measurement cycle；And/or, for the vertical dimension on each group antenna port of vertical dimensions Degree downlink reference signal distribution side-play amount within the vertical dimensions measurement cycle.

Step 130, horizontal dimensions is measured cycle and vertical dimensions measure the cycle, and horizontal dimensions is measured Each side-play amount in cycle and/or each side-play amount in the vertical dimensions measurement cycle are sent to described user Equipment.

Preferably, also by downlink reference signal resource and the downlink reference signal money of vertical dimensions of horizontal dimensions Source is sent to described subscriber equipment.

Step 140, within the horizontal dimensions measurement cycle send horizontal dimensions downlink reference signal；Wherein, as The horizontal dimensions downlink reference signal on each group antenna port that fruit is horizontal dimensions is assigned with in horizontal dimensions Side-play amount in the measurement cycle, sends horizontal dimensions downlink reference signal, bag within the horizontal dimensions measurement cycle Include: in the subframe of each side-play amount instruction within the horizontal dimensions measurement cycle, respectively by horizontal dimensions Each group antenna port sends horizontal dimensions downlink reference signal.

Step 150, within the vertical dimensions measurement cycle send vertical dimensions downlink reference signal；Wherein, as The vertical dimensions downlink reference signal on each group antenna port that fruit is vertical dimensions is assigned with in vertical dimensions Side-play amount in the measurement cycle, sends vertical dimensions downlink reference signal, bag within the vertical dimensions measurement cycle Include: in the subframe of each side-play amount instruction within the vertical dimensions measurement cycle, respectively by vertical dimensions Each group antenna port sends vertical dimensions downlink reference signal.

The embodiment of the present invention provide technical scheme, base station respectively in horizontal dimensions and/or vertical dimensions to sky Line cap is grouped, and each group antenna port in horizontal dimensions sends horizontal dimensions descending reference letter respectively Number, and/or each group antenna port transmission vertical dimensions downlink reference signal in vertical dimensions.So that user sets For the downlink reference signal that each group antenna port received according to horizontal dimensions and/or vertical dimensions is corresponding, To the measurement channel matrix of horizontal dimensions and/or vertical dimensions, and then carry out the feedback of channel condition information, solve Under large-scale antenna array of having determined scene, the problem of information feedback.When often organizing antenna port number not When exceeding the downlink reference signal port number that existing system is supported, it is possible to use existing CSI-RS is joined Put the feedback carrying out channel condition information.It should be pointed out that, the scheme that the embodiment of the present invention provides is the suitableeest The situation of the downlink reference signal port number that existing system is supported is exceeded for often organizing antenna port number.In these feelings Under shape, need to configure new reference signal resource, to support the feedback of channel condition information.

Preferably, often between group antenna port and the often group antenna port of adjacent horizontal dimensions of horizontal dimensions All having the antenna port of an identical repetition of polarization, the often group antenna port of vertical dimensions is vertical with adjacent The antenna port of the identical repetition that polarizes all is had between the often group antenna port of dimension.

In the embodiment of the present invention, two groups of adjacent antenna ports refer to the group sequence number phase of these two groups of antenna ports Adjacent.

In the embodiment of the present invention, the often group antenna port of horizontal dimensions and the often group antenna of adjacent horizontal dimensions The antenna port of the identical repetition that polarizes, often group antenna port and the phase of vertical dimensions is all had between port The antenna port of the identical repetition that polarizes all is had between the often group antenna port of adjacent vertical dimensions, thus Ensure that user equipment side can correctly estimate measurement channel matrix and the measurement of vertical dimensions of horizontal dimensions Channel matrix, and then correctly estimate channel condition information.

In the embodiment of the present invention, it is preferred that a line antenna port of horizontal dimensions is grouped, and/or will A line antenna port of vertical dimensions is grouped.Wherein it is possible to any a line antenna of selection level dimension Port is grouped, and any a line antenna port of vertical dimensions can be selected to be grouped.Excellent with this below As a example by selecting mode to combine concrete application scenarios, the specific implementation that base station side sends downlink reference signal is entered Row describes in detail.

Assume that the aerial array of base station is by N_rowRow, N_colArray antenna forms, and antenna polarization number is N_pol。 If N_polValue be 1, then antenna is single-polarized antenna oscillator, and i.e. one antenna oscillator includes a sky Line cap；If N_polValue be 2, then antenna is dual-polarized antenna vibrator, i.e. one antenna oscillator bag Include two antenna ports.

Antenna port is in serial number n of vertical dimensions_v=1 ..., N_v, and N_v=N_row.Antenna port is tieed up in level Serial number n of degree_h=1 ..., N_h, and n_h=(n_pol-1)N_col+n_col, and N_h=N_polN_col, n_polFor antenna port Polarization sequence number, n_colRow sequence number for antenna port column.

Base station is from N_rowRow antenna port arbitrarily select a line horizontal dimensions antenna port form horizontal dimensions Antenna port, and from N_colArray antenna port arbitrarily selects the antenna of the string vertical dimensions of a polarization Port forms the antenna port of vertical dimensions.

The realization side that the antenna port of horizontal dimensions selected and the antenna port of vertical dimensions are grouped Formula has multiple, as long as ensureing the often group antenna port of horizontal dimensions and the often group antenna end of adjacent horizontal dimensions All have the antenna port of an identical repetition of polarization between Kou, and the often group antenna port of vertical dimensions with The antenna port of the identical repetition that polarizes all is had between the often group antenna port of adjacent vertical dimensions.

Preferably, a line antenna port of horizontal dimensions and the string antenna port of vertical dimensions are being carried out point During group, use continuous packet mode.That is, the often group antenna port of horizontal dimensions is arranged in horizontal dimensions continuously Cloth, the often group antenna port of vertical dimensions is arranged the most continuously.So, two groups of horizontal dimensions Antenna port is adjacent, specifically refers to these two groups of antenna ports and arranges continuously in horizontal dimensions；Vertical dimensions Two groups of antenna ports are adjacent, specifically refer to these two groups of antenna ports and arrange the most continuously.

Preferably, a line antenna port of horizontal dimensions and the string antenna port of vertical dimensions are being carried out point During group, make the antenna port number often organized is the maximum port number that standard is supported as far as possible.Such as, current standard The maximum CSI-RS port number supported is 8, and make the antenna port number often organized is 8 the most as far as possible.

It should be pointed out that, in actual application, can only meet what above-mentioned the most preferably packet mode proposed Packet condition, it is also possible to meet the packet condition that above-mentioned all packet modes propose.

Being implemented as follows of this preferred packet mode:

First packet count is determined.

If dual-polarized antenna vibrator, the number of packet of the antenna port of the horizontal dimensions of selectionPermissible But it is not limited only to be determined by equation below 1, the number of packet of the antenna port of the vertical dimensions of selection Can but be not limited only to be determined by equation below 2:

$N_h^{\mathrm{group}}=\left\{\begin{array}{ccc}\mathrm{int}((N_{\mathrm{col}}-4)/3)+2,& \mathrm{if}& \mathrm{mod}(N_{\mathrm{col}}-\mathrm{4,3})\≠0\\ \mathrm{int}((N_{\mathrm{col}}-4)/3)+1,& \mathrm{if}& \mathrm{mod}(N_{\mathrm{col}}-\mathrm{4,3})=0\end{array}\right.$ Formula 1

$N_v^{\mathrm{group}}=\left\{\begin{array}{ccc}\mathrm{int}((N_{\mathrm{row}}-8)/7)+2,& \mathrm{if}& \mathrm{mod}(N_{\mathrm{row}}-\mathrm{8,7})\≠0\\ \mathrm{int}((N_{\mathrm{row}}-8)/7)+1,& \mathrm{if}& \mathrm{mod}(N_{\mathrm{row}}-\mathrm{8,7})=0\end{array}\right.$ Formula 2

If single-polarized antenna oscillator, the number of packet of the antenna port of the horizontal dimensions of selectionPermissible But it is not limited only to be determined by equation below 3, the number of packet of the antenna port of the vertical dimensions of selection Can but be not limited only to be determined by equation below 4:

$N_h^{\mathrm{group}}=\left\{\begin{array}{ccc}\mathrm{int}((N_{\mathrm{col}}-8)/7)+2,& \mathrm{if}& \mathrm{mod}(N_{\mathrm{col}}-\mathrm{8,7})\≠0\\ \mathrm{int}((N_{\mathrm{col}}-8)/7)+1,& \mathrm{if}& \mathrm{mod}(N_{\mathrm{col}}-\mathrm{8,7})=0\end{array}\right.$ Formula 3

$N_v^{\mathrm{group}}=\left\{\begin{array}{ccc}\mathrm{int}((N_{\mathrm{row}}-8)/7)+2,& \mathrm{if}& \mathrm{mod}(N_{\mathrm{row}}-\mathrm{8,7})\≠0\\ \mathrm{int}((N_{\mathrm{row}}-8)/7)+1,& \mathrm{if}& \mathrm{mod}(N_{\mathrm{row}}-\mathrm{8,7})=0\end{array}\right.$ Formula 4

It is then determined that the antenna port quantity that respectively group antenna port includes.

If dual-polarized antenna vibrator, each of horizontal dimensions can be determined according to equation below 5 and formula 7 The antenna port quantity that group antenna port includes, determines vertical dimensions according to equation below 6 and formula 8 The antenna port quantity that each group antenna port includes:

$N_{\mathrm{col}}^{\mathrm{group}}\left(n_h^{\mathrm{group}}\right)=\left\{\begin{array}{ccc}4,& \mathrm{if}& \mathrm{mod}(N_{\mathrm{col}}-\mathrm{4,3})\≠0\mathrm{and}{n}_h^{\mathrm{group}}=1,...,N_h^{\mathrm{group}}-1\\ \mathrm{mod}(N_{\mathrm{col}}-\mathrm{4,3})+1,& \mathrm{if}& \mathrm{mod}(N_{\mathrm{col}}-\mathrm{4,3})\≠0\mathrm{and}{n}_h^{\mathrm{group}}=N_h^{\mathrm{group}}\\ 4,& \mathrm{if}& \mathrm{mod}(N_{\mathrm{col}}-\mathrm{4,3})=0\end{array}\right.$ Formula 5

$N_{\mathrm{row}}^{\mathrm{group}}\left(n_v^{\mathrm{group}}\right)=\left\{\begin{array}{ccc}8,& \mathrm{if}& \mathrm{mod}(N_{\mathrm{row}}-\mathrm{8,7})\≠0\mathrm{and}{n}_v^{\mathrm{group}}=1,...,N_v^{\mathrm{group}}-1\\ \mathrm{mod}(N_{\mathrm{row}}-\mathrm{8,7})+1,& \mathrm{if}& \mathrm{mod}(N_{\mathrm{row}}-\mathrm{8,7})\≠0\mathrm{and}{n}_v^{\mathrm{group}}=N_v^{\mathrm{group}}\\ 8,& \mathrm{if}& \mathrm{mod}(N_{\mathrm{row}}-\mathrm{8,7})=0\end{array}\right.$ Formula 6

$N_{h,\mathrm{port}}^{\mathrm{group}}\left(n_h^{\mathrm{group}}\right)=N_{\mathrm{pol}}\×N_{\mathrm{col}}^{\mathrm{group}}\left(n_h^{\mathrm{group}}\right)$ Formula 7

$N_{v,\mathrm{port}}^{\mathrm{group}}\left(n_v^{\mathrm{group}}\right)=N_{\mathrm{row}}^{\mathrm{group}}\left(n_v^{\mathrm{group}}\right)$ Formula 8

Wherein,Represent n-th group antenna port,N-th group antenna port for horizontal dimensions Including antenna oscillator columns,The antenna port included for the n-th group antenna port of horizontal dimensions Quantity.

Wherein,The antenna oscillator line number included for the n-th group antenna port of vertical dimensions,The antenna port quantity included for the n-th group antenna port of vertical dimensions.

If single-polarized antenna oscillator, horizontal dimensions can be determined according to equation below 9 and formula 11 The antenna port quantity that each group antenna port includes, determines vertical dimension according to equation below 10 and formula 12 The antenna port quantity that each group antenna port of degree includes:

$N_{\mathrm{col}}^{\mathrm{group}}\left(n_h^{\mathrm{group}}\right)=\left\{\begin{array}{ccc}8,& \mathrm{if}& \mathrm{mod}(N_{\mathrm{col}}-\mathrm{8,7})\≠0\mathrm{and}{n}_h^{\mathrm{group}}=1,...,N_h^{\mathrm{group}}-1\\ \mathrm{mod}(N_{\mathrm{col}}-\mathrm{8,7})+1,& \mathrm{if}& \mathrm{mod}(N_{\mathrm{col}}-\mathrm{8,7})\≠0\mathrm{and}{n}_h^{\mathrm{group}}=N_h^{\mathrm{group}}\\ 8,& \mathrm{if}& \mathrm{mod}(N_{\mathrm{col}}-\mathrm{8,7})=0\end{array}\right.$ Formula 9

$N_{\mathrm{row}}^{\mathrm{group}}\left(n_v^{\mathrm{group}}\right)=\left\{\begin{array}{ccc}8,& \mathrm{if}& \mathrm{mod}(N_{\mathrm{row}}-\mathrm{8,7})\≠0\mathrm{and}{n}_v^{\mathrm{group}}=1,...,N_v^{\mathrm{group}}-1\\ \mathrm{mod}(N_{\mathrm{row}}-\mathrm{8,7})+1,& \mathrm{if}& \mathrm{mod}(N_{\mathrm{row}}-\mathrm{8,7})\≠0\mathrm{and}{n}_v^{\mathrm{group}}=N_v^{\mathrm{group}}\\ 8,& \mathrm{if}& \mathrm{mod}(N_{\mathrm{row}}-\mathrm{8,7})=0\end{array}\right.$ Formula 10

$N_{h,\mathrm{port}}^{\mathrm{group}}\left(n_h^{\mathrm{group}}\right)=N_{\mathrm{pol}}\×N_{\mathrm{col}}^{\mathrm{group}}\left(n_h^{\mathrm{group}}\right)=N_{\mathrm{col}}^{\mathrm{group}}\left(n_h^{\mathrm{group}}\right)$ Formula 11

$N_{v,\mathrm{port}}^{\mathrm{group}}\left(n_v^{\mathrm{group}}\right)=N_{\mathrm{row}}^{\mathrm{group}}\left(n_v^{\mathrm{group}}\right)$ Formula 12

Also to be grouped number according to horizontal dimensions antenna portDetermine that horizontal dimensions often organizes antenna port Initial row is numberedIt is grouped number according to vertical dimensions antenna portReally Determine vertical dimensions and often organize the initial column numbering of antenna port

If N_pol=2, then it is shown to be dual-polarized antenna vibrator, its method for numbering serial is as follows:

$s_{\mathrm{col}}^{\mathrm{group}}\left(n_h^{\mathrm{group}}\right)=(n_h^{\mathrm{group}}-1)\×3+1,n_h^{\mathrm{group}}=1,...,N_h^{\mathrm{group}}$ Formula 13

$s_{\mathrm{row}}^{\mathrm{group}}\left(n_v^{\mathrm{group}}\right)=(n_v^{\mathrm{group}}-1)\×7+1,n_v^{\mathrm{group}}=1,...,N_v^{\mathrm{group}}$ Formula 14

If N_pol=1, then it is shown to be single-polarized antenna oscillator, its method for numbering serial is as follows:

$s_{\mathrm{col}}^{\mathrm{group}}\left(n_h^{\mathrm{group}}\right)=(n_h^{\mathrm{group}}-1)\×7+1,n_h^{\mathrm{group}}=1,...,N_h^{\mathrm{group}}$ Formula 15

$s_{\mathrm{row}}^{\mathrm{group}}\left(n_v^{\mathrm{group}}\right)=(n_v^{\mathrm{group}}-1)\×7+1,n_v^{\mathrm{group}}=1,...,N_v^{\mathrm{group}}$ Formula 16

For N_row=10, N_colThe dual-polarized antenna array of=8, is carried out point according to above-mentioned preferred packet mode The result of group is as shown in Figure 2.For N_row=10, N_colThe single-polarized antenna array of=16, according to above-mentioned excellent The packet mode of choosing carries out the result that is grouped as shown in Figure 3.

If it should be pointed out that, two row of selection level dimension even more multirow antenna port, it specifically divides Prescription formula is referred to above-mentioned preferred packet mode, and simply same column and the identical antenna port that polarizes will be Same group.If selecting the two row even more multirow antenna port of vertical dimensions, its concrete packet mode is permissible With reference to above-mentioned preferred packet mode, colleague's antenna port will be at same group mutually.

Based on above-mentioned preferred packet mode embodiment, accordingly, the preferred implementation of step 110 is permissible It is: base station is the CSI process of UE one horizontal dimensions of configuration and corresponding horizontal dimensions CSI-RS money thereof Source, and/or the CSI process of a vertical dimensions and corresponding vertical dimensions CSI-RS thereof.Each CSI-RS can have the most independent period of sub-frame and skew, it is also possible to is that two CSI-RS are joined Put identical period of sub-frame and skew.For horizontal dimensionsCSI-RS configuration level on group antenna port The group bias internal of dimension, then the period of sub-frame of horizontal dimensions isThe group bias internal of individual horizontal dimensions.It is vertical Straight dimensionCSI-RS on group antenna port configures vertical dimensions group bias internal, the then son of vertical dimensions Frame period isThe group bias internal of individual vertical dimensions.Each group of bias internal of horizontal dimensions use identical CSI-RS, along with horizontal dimensions group bias internal changes, the antenna end in horizontal dimensions antenna port group Mouth numberHorizontal dimensions often organizes the initial row numbering of antenna portAlso there is corresponding change.I.e. when the bias internal of group every time of horizontal dimensions, The pilot signal of each port of horizontal dimensions CSI-RS all antenna end in each group of horizontal dimensions Send on Kou.Identical CSI-RS is used, along with vertical dimensions in each group of bias internal of vertical dimensions Group bias internal change, the antenna port number in vertical dimensions antenna port group Vertical dimensions often organizes the initial row numbering of antenna portAlso there is corresponding change Change.I.e. when the bias internal of group every time of vertical dimensions, the pilot tone letter of each port of vertical dimensions CSI-RS Send all antenna ports number in each group of vertical dimensions.

If N_pol=2, then it is shown to be dual-polarized antenna vibrator, it is at horizontal dimensions and the CSI of vertical dimensions Process and CSI-RS packet configuration scheme are as shown in Figure 4.

UE side carries out the implementation of information feedback as it is shown in figure 5, specifically include following operation:

Step 500, reception horizontal dimensions downlink reference signal, and believe according to described horizontal dimensions descending reference Number determine the measurement channel matrix of horizontal dimensions；And, reception vertical dimensions downlink reference signal, and according to Described vertical dimensions downlink reference signal determines the measurement channel matrix of vertical dimensions.

Wherein, as shown in Figure 6, horizontal dimensions downlink reference signal is received, and according under described horizontal dimensions Row reference signal determines the measurement channel matrix of horizontal dimensions, including:

Step 5001a, base station configuration the horizontal dimensions measurement cycle in each side-play amount instruction subframe Upper reception horizontal dimensions downlink reference signal respectively；

Step 5002a, obtain respectively according to the horizontal dimensions downlink reference signal received in each described subframe Take each horizontal dimensions group channel matrix；

Step 5003a, according to each horizontal dimensions group channel matrix, determine the measurement channel square of horizontal dimensions Battle array.

And/or, as it is shown in fig. 7, receive vertical dimensions downlink reference signal, and according under described vertical dimensions Row reference signal determines the measurement channel matrix of vertical dimensions, including:

Step 5001b, base station configuration the vertical dimensions measurement cycle in each side-play amount instruction subframe Upper reception vertical dimensions downlink reference signal respectively；

Step 5002b, obtain respectively according to the vertical dimensions downlink reference signal received in each described subframe Take each vertical dimensions group channel matrix；

Step 5003b, according to each vertical dimensions group channel matrix, determine the measurement channel square of vertical dimensions Battle array.

Wherein, the level dimension subframe of the instruction of each side-play amount within the horizontal dimensions measurement cycle received One group of antenna port of degree downlink reference signal respectively corresponding horizontal dimensions, horizontal dimensions respectively organize antenna port It is that at least a line antenna port packet of horizontal dimensions is determined by described base station；The cycle is measured in vertical dimensions The vertical dimensions downlink reference signal correspondence respectively received respectively in the subframe of interior each side-play amount instruction is hung down One group of antenna port of straight dimension, each group antenna port of vertical dimensions be described base station to vertical dimensions extremely Few string antenna port packet determines；

Step 510, measure channel matrix and the measurement channel matrix of vertical dimensions, really according to horizontal dimensions Determine three dimensions channel matrix；

Step 520, according to three dimensions channel matrix, determine channel condition information, and the channel that will determine Status information feedback gives described base station.

The embodiment of the present invention provide technical scheme, base station respectively in horizontal dimensions and vertical dimensions to antenna Port is grouped, and UE receives horizontal dimensions descending reference letter at each group antenna port of horizontal dimensions respectively Number, each group antenna port in vertical dimensions receives vertical dimensions downlink reference signal.Subscriber equipment is according to water What flat dimension and/or vertical dimensions received respectively organizes the downlink reference signal that antenna port is corresponding, obtains level dimension Degree and/or the measurement channel matrix of vertical dimensions, and then carry out the feedback of channel condition information, solve big rule Under mould aerial array scene, the problem of information feedback.When often organizing antenna port number less than existing During the downlink reference signal port number that standard is supported, it is possible to use the configuration of existing CSI-RS carries out letter The feedback of channel state information.It should be pointed out that, the scheme that the embodiment of the present invention provides is equally applicable to often group Antenna port number exceedes the situation of the downlink reference signal port number that existing standard is supported.In this case, need Configure new reference signal resource, to support the feedback of channel condition information.

Preferably, if the antenna port packet of horizontal dimensions, the often group antenna port of horizontal dimensions is with adjacent Horizontal dimensions often group antenna port between all have the antenna port of a repeated measure.Accordingly, according to Each horizontal dimensions group channel matrix, determines that the measurement channel matrix of horizontal dimensions includes: tie up each level Degree group channel matrix is modified；According to each horizontal dimensions group channel matrix revised, determine that level is tieed up The measurement channel matrix of degree.If the antenna port packet of vertical dimensions, the often group antenna port of vertical dimensions And all there is the antenna port of a repeated measure between the often group antenna port of adjacent vertical dimensions.Accordingly , according to each vertical dimensions group channel matrix, determine that the measurement channel matrix of vertical dimensions includes: to respectively Individual vertical dimensions group channel matrix is modified；According to each vertical dimensions group channel matrix revised, really Determine the measurement channel matrix of vertical dimensions.

Preferably, each horizontal dimensions group channel matrix is modified, including: respectively according to horizontal dimensions The described repeated measure often organizing antenna port antenna port measured by obtain antenna port channel information, right Each horizontal dimensions group channel matrix is modified.

Preferably, each vertical dimensions group channel matrix is modified, including: respectively according to vertical dimensions The described repeated measure often organizing antenna port antenna port measured by the antenna port channel information that obtains, Each vertical dimensions group channel matrix is modified.

Still as a example by the aerial array of above-mentioned base station, UE, in each period of sub-frame of horizontal dimensions, passes through Measure horizontal dimensionsThe CSI-RS of the configuration in individual group, obtains corresponding horizontal dimensionsIn individual group often The group channel matrix of group antenna portWherein,The channel matrix of group isWherein, N_rIt is the number of UE reception antenna, N_polIt it is the polarization of antenna for base station Number.UE is in each period of sub-frame of vertical dimensions, by measuring vertical dimensionsConfiguration in individual group CSI-RS, obtain corresponding vertical dimensionsThe group channel of antenna port is often organized in individual groupWherein,The channel matrix of group is $H_v^{n_v^{\mathrm{group}}}\∈C^{N_r\×N_{\mathrm{row}}^{\mathrm{group}}\left(n_v^{\mathrm{group}}\right)}.$ Wherein, N_rIt is UE The number of reception antenna.

By the antenna port channel of repeated measure between group and group, the antenna port channel of grouping mea-sure is entered Row is revised.Obtain horizontal dimensionsThe correction value of the group channel of each antenna port in individual groupWherein,The correction value of the channel breath of group is ${\tilde{H}}_h^{n_h^{\mathrm{group}}}\∈C^{N_r\×N_{\mathrm{pol}}\×N_{\mathrm{col}}^{\mathrm{group}}\left(n_h^{\mathrm{group}}\right)};$ Obtain Vertical dimensionsThe correction value of the group channel of each antenna port in individual groupWherein, TheThe correction value of the channel of group isIts detailed modification method is as follows:

CalculateThe modifying factor of each group of groupItsComputing formula is as follows:

${\mathrm{\α}}_h^{n_h^{\mathrm{group}}}(n_r,n_{\mathrm{pol}})=\left\{\begin{array}{ccc}1,& \mathrm{if}& n_h^{\mathrm{group}}=1\\ {\mathrm{\α}}_h^{(n_h^{\mathrm{group}}-1)}(n_r,n_{\mathrm{pol}})\×\frac{{\tilde{H}}_h^{(n_h^{\mathrm{group}}-1)}(n_r,n_{\mathrm{pol}},N_{\mathrm{col}}^{\mathrm{group}}(n_h^{\mathrm{group}}-1))}{{\tilde{H}}_h^{\left(n_h^{\mathrm{group}}\right)}(n_r,n_{\mathrm{pol}},1)},& \mathrm{if}& n_h^{\mathrm{group}}\≥2\end{array}\right.$ Formula 17

Wherein, n_rRepresent UE reception antenna N_rIn n-th_rIndividual；n_polRepresent the N of base station_polIn individual polarization n_polIndividual polarization.Represent the of horizontal dimensionsAntenna port groupRow Port.

CalculateThe modifying factor of each group of groupItsComputing formula in detail is as follows:

${\mathrm{\α}}_v^{n_v^{\mathrm{group}}}\left(n_r\right)=\left\{\begin{array}{ccc}1,& \mathrm{if}& n_v^{\mathrm{group}}=1\\ {\mathrm{\α}}_v^{(n_v^{\mathrm{group}}-1)}\left(n_r\right)\×\frac{{\tilde{H}}_v^{(n_v^{\mathrm{group}}-1)}(n_r,N_{\mathrm{row}}^{\mathrm{group}}(n_v^{\mathrm{group}}-1))}{{\tilde{H}}_v^{\left(n_v^{\mathrm{group}}\right)}(n_r,1)},& \mathrm{if}& n_v^{\mathrm{group}}\≥2\end{array}\right.$ Formula 18

Pass through modifying factorTo horizontal group channelIt is modified, obtainsWhereinComputing formula in detail is as follows:

${\tilde{H}}_h^{n_h^{\mathrm{group}}}(n_r,n_{\mathrm{pol}},i_{\mathrm{col}}^{\mathrm{group}})={\mathrm{\α}}_h^{n_h^{\mathrm{group}}}(n_r,n_{\mathrm{pol}})\×H_h^{n_h^{\mathrm{group}}}(n_r,n_{\mathrm{pol}},i_{\mathrm{col}}^{\mathrm{group}})$ Formula 19

Wherein, It isNumbering in the group of the antenna port in group.

Pass through modifying factorTo orthogonal sets channelIt is modified, obtainsWhereinComputing formula in detail is as follows:

${\tilde{H}}_v^{n_v^{\mathrm{group}}}(n_r,i_{\mathrm{row}}^{\mathrm{group}})={\mathrm{\α}}_v^{n_v^{\mathrm{group}}}\left(n_r\right)\×H_v^{n_v^{\mathrm{group}}}(n_r,i_{\mathrm{row}}^{\mathrm{group}}),$ Wherein, $1\≤i_{\mathrm{row}}^{\mathrm{group}}\≤N_{\mathrm{row}}^{\mathrm{group}}\left(n_v^{\mathrm{group}}\right)$ Formula 20

From the group channel of revised horizontal dimensionsRemove the antenna port of repeated measure Channel, obtains the N of unified horizontal dimensions_pol×N_colThe measurement channel of individual antenna port port From the group channel of revised vertical dimensionsRemove the letter of the antenna port of repeated measure Road, obtains the N of unified vertical dimensions_rowThe measurement channel of individual antenna port portIt is detailed Computational methods are as follows:

The measurement channel of calculated level dimensionWherein H_h(n_r,n_pol,n_col) computing formula as follows:

The often group of calculated level dimension chooses the columns of antenna portIts computing formula is as follows:

$I_{\mathrm{col}}^{\mathrm{group}}\left(n_h^{\mathrm{group}}\right)=\left\{\begin{array}{ccc}{N}_h^{\mathrm{group}}-1,& \mathrm{if}& n_h^{\mathrm{group}}\≠N_h^{\mathrm{group}}\\ N_h^{\mathrm{group}},& \mathrm{if}& n_h^{\mathrm{group}}=N_h^{\mathrm{group}}\end{array}\right.$ Formula 21

The measurement channel of calculated level dimensionIts H_h(n_r,n_pol,n_col) it is calculated as follows:

$H_h(n_r,n_{\mathrm{pol}},n_{\mathrm{col}})={\tilde{H}}_h^{n_h^{\mathrm{group}}}(n_r,n_{\mathrm{pol}},i_{\mathrm{col}}^{\mathrm{group}})$ Formula 22

Wherein,

$n_{\mathrm{col}}=s_{\mathrm{col}}^{\mathrm{group}}\left(n_h^{\mathrm{group}}\right)+i_{\mathrm{col}}^{\mathrm{group}}-\mathrm{1,0}\≤i_{\mathrm{col}}^{\mathrm{group}}\≤I_{\mathrm{col}}^{\mathrm{group}}\left(n_h^{\mathrm{group}}\right)$ Formula 23

Calculate the measurement channel of vertical dimensionsWherein H_v(n_r,n_row) computing formula as follows:

The often group calculating vertical dimensions chooses the line number of antenna portIts computing formula is as follows:

$I_{\mathrm{row}}^{\mathrm{group}}\left(n_v^{\mathrm{group}}\right)=\left\{\begin{array}{ccc}{N}_v^{\mathrm{group}}-1,& \mathrm{if}& n_v^{\mathrm{group}}\≠N_v^{\mathrm{group}}\\ N_v^{\mathrm{group}},& \mathrm{if}& n_v^{\mathrm{group}}=N_v^{\mathrm{group}}\end{array}\right.$ Formula 24

Calculate the measurement channel of vertical dimensionsIts H_v(n_r,n_row) it is calculated as follows:

$H_v(n_r,n_{\mathrm{row}})={\tilde{H}}_v^{n_v^{\mathrm{group}}}(n_r,i_{\mathrm{row}}^{\mathrm{group}})$ Formula 25

Wherein,

$n_{\mathrm{row}}=s_{\mathrm{row}}^{\mathrm{group}}\left(n_v^{\mathrm{group}}\right)+i_{\mathrm{row}}^{\mathrm{group}}-\mathrm{1,0}\≤i_{\mathrm{row}}^{\mathrm{group}}\≤I_{\mathrm{row}}^{\mathrm{group}}\left(n_v^{\mathrm{group}}\right)$ Formula 26

By the measurement channel of horizontal dimensionsArrange by polarization, form the measurement letter of horizontal dimensions RoadWherein, N_h=N_polN_col, and whereinAnd n_h=1 ..., N_h, n_h=(n_pol-1)N_col+n_col；Measurement channel for vertical dimensionsThe survey of vertical dimensions can be obtained Amount channelWherein, N_v=N_row, and whereinAnd n_h=1 ..., N_v, n_v=n_row。

Measurement channel according to vertical dimensionsMeasurement channel with horizontal dimensionsStructure Become the space channel of three-dimensional (3D)Wherein H_3D(n_r:), represent n-th_rIndividual reception antenna institute Receive the 3d space channel of antenna for base station.Computational methods in detail are as follows:

$H_{3D}(n_r,:)=\frac{1}{H_v(n_r,1)}\×H_v(n_r,:)\⊗H_h(n_r,:)$ Formula 27

Or

$H_{3D}(n_r,:)=\frac{1}{H_v(n_r,1)}\×H_h(n_r,:)\⊗H_v(n_r,:)$ Formula 28

UE is according to calculated three-dimensional (3D) space channelCalculate CSI information, here CSI information include PMI information, RI information, CQI information.Terminal feedback PMI information can be water Flat dimension PMI information and the PMI information of vertical dimensions, it is also possible to three-dimensional PMI information；Terminal feedback RI Information, can be the RI information of the PMI information just for horizontal dimensions, it is also possible to be three-dimensional PMI RI information.The CQI information of terminal feedback, is based on three-dimensional (3D) space channelAnd three-dimensional Pre-coding matrix W_3DCalculated.

Assume that base station uses horizontal dimensions PMI information and the PMI information mode of vertical dimensions, then its PMI, RI and CQI calculation is as follows:

Terminal fromChoose corresponding string horizontal dimensions channelVertical by being calculated The PMI information of dimension.

Terminal is by vertical dimensions pre-coding matrix corresponding to the PMI information of vertical dimensionsBy W_vWith H_3DIt is re-configured to the channel of horizontal dimensions equivalence

Channel by horizontal dimensions equivalenceThe RI of calculated level dimension and horizontal dimensions CQI.

Assume that base station uses three-dimensional PMI information mode, then its PMI, RI and CQI calculation is as follows:

Terminal is usedIt is calculated three-dimensional PMI information.

Terminal is usedIt is calculated the RI information of three-dimensional.

Terminal is usedIt is calculated the CQI information of three-dimensional.

Base station receives the CSI information of terminal feedback, carries out the calculating of link circuit self-adapting parameter.

Assume that pre-coding matrix corresponding to the vertical dimensions PMI information of terminal feedback isTerminal is anti- The pre-coding matrix corresponding with horizontal dimensions RI information for PMI of the horizontal dimensions of feedback isWherein R_h For the columns (order) of horizontal dimensions pre-coding matrix, RI information determine, then base station carries out data transmission Pre-coding matrix for whole aerial array is:Or,Wherein The Kronecker product of representing matrix.

Assume that pre-coding matrix corresponding to the three-dimensional PMI information of terminal feedback isWherein R is The columns (order) of three-dimensional space direction pre-coding matrix, is determined by RI information, then base station carries out data transmission The pre-coding matrix for whole aerial array be: W_3D。

The MCS (code rate and modulation levels) of data transmission can select according to the CQI of terminal feedback, Such as directly it is mapped to MCS grade by CQI and resource quantity, or after the CQI of terminal feedback is adjusted Re-map MCS grade.

Based on the inventive concept as method, the embodiment of the present invention also provides for a kind of information feedback Device, as shown in Figure 8, specifically includes:

Measure channel matrix and determine module 801, be used for receiving horizontal dimensions downlink reference signal, and according to institute State horizontal dimensions downlink reference signal and determine the measurement channel matrix of horizontal dimensions；And, receive vertical dimensions Downlink reference signal, and the measurement channel square of vertical dimensions is determined according to described vertical dimensions downlink reference signal Battle array；

Wherein, receive horizontal dimensions downlink reference signal, and true according to described horizontal dimensions downlink reference signal Determine the measurement channel matrix of horizontal dimensions, including: base station configuration the horizontal dimensions measurement cycle in each Receive horizontal dimensions downlink reference signal respectively in the subframe of side-play amount instruction, connect according in each described subframe The horizontal dimensions downlink reference signal received obtains each horizontal dimensions group channel matrix respectively, and according to respectively Individual horizontal dimensions group channel matrix, determines the measurement channel matrix of horizontal dimensions；And/or under reception vertical dimensions Row reference signal, and the measurement channel square of vertical dimensions is determined according to described vertical dimensions downlink reference signal Battle array, including: in the subframe of each side-play amount instruction within the vertical dimensions measurement cycle of base station configuration respectively Receive vertical dimensions downlink reference signal, according to the vertical dimensions descending reference received in each described subframe Signal obtains each vertical dimensions group channel matrix respectively, and according to each vertical dimensions group channel matrix, Determine the measurement channel matrix of vertical dimensions；Receive in each described subframe within the identical dimensional measurement cycle One group of antenna port of the described dimension downlink reference signal that arrives corresponding described dimension respectively, described dimension each Group antenna port is that at least a line or the packet of array antenna port of described dimension are determined by described base station；

Three dimensions channel matrix determines module 802, for the measurement channel matrix according to horizontal dimensions with vertical The measurement channel matrix of straight dimension, determines three dimensions channel matrix；

Channel condition information determines and feedback module 803, for according to three dimensions channel matrix, determines letter Channel state information, and give described base station by the information feedback that determines.

Preferably, often between group antenna port and the often group antenna port of adjacent described dimension of identical dimensional All there is the antenna port of a repeated measure；According to dimension group channel matrix each described, determine described dimension Measurement channel matrix time, measure channel matrix determine module for:

Dimension group channel matrix each described is modified；

According to each described dimension group channel matrix revised, determine the measurement channel matrix of described dimension.

Preferably, to when dimension group channel matrix is modified each described, measures channel matrix and determine module For:

Obtain according to measured by the antenna port of the described repeated measure often organizing antenna port of described dimension respectively To antenna port channel information, dimension group channel matrix each described is modified, obtain revised respectively Individual described dimension group channel matrix.

Preferably, according to each described dimension group channel matrix revised, the measurement letter of described dimension is determined During road matrix, measure channel matrix determine module for:

The letter of the antenna port of described repeated measure is removed from each described dimension group channel matrix revised Road information, determines the measurement channel matrix of described dimension.

Based on the inventive concept as method, the embodiment of the present invention also provides for a kind of UE, its structure such as figure Shown in 9, specifically include:

Processor 900, for reading the program in memorizer 920, performs following process:

Receive horizontal dimensions downlink reference signal, and determine level according to described horizontal dimensions downlink reference signal The measurement channel matrix of dimension；And, receive vertical dimensions downlink reference signal, and according to described vertical dimension Degree downlink reference signal determines the measurement channel matrix of vertical dimensions；

Wherein, receive horizontal dimensions downlink reference signal, and true according to described horizontal dimensions downlink reference signal Determine the measurement channel matrix of horizontal dimensions, including: base station configuration the horizontal dimensions measurement cycle in each Receive horizontal dimensions downlink reference signal respectively in the subframe of side-play amount instruction, connect according in each described subframe The horizontal dimensions downlink reference signal received obtains each horizontal dimensions group channel matrix respectively, and according to respectively Individual horizontal dimensions group channel matrix, determines the measurement channel matrix of horizontal dimensions；And/or under reception vertical dimensions Row reference signal, and the measurement channel square of vertical dimensions is determined according to described vertical dimensions downlink reference signal Battle array, including: in the subframe of each side-play amount instruction within the vertical dimensions measurement cycle of base station configuration respectively Receive vertical dimensions downlink reference signal, according to the vertical dimensions descending reference received in each described subframe Signal obtains each vertical dimensions group channel matrix respectively, and according to each vertical dimensions group channel matrix, Determine the measurement channel matrix of vertical dimensions；Receive in each described subframe within the identical dimensional measurement cycle One group of antenna port of the described dimension downlink reference signal that arrives corresponding described dimension respectively, described dimension each Group antenna port is that at least a line or the packet of array antenna port of described dimension are determined by described base station；

Measurement channel matrix according to horizontal dimensions and the measurement channel matrix of vertical dimensions, determine three dimensions Channel matrix；

According to three dimensions channel matrix, determine channel condition information, and by anti-for the channel condition information that determines Feed described base station.

Transceiver 910, for receiving and sending data under the control of processor 900.

Wherein, in fig .9, bus architecture can include bus and the bridge of any number of interconnection, specifically by The various electrical chains of the memorizer that one or more processors of processor 900 representative and memorizer 920 represent It is connected together.Bus architecture can also be by such as ancillary equipment, manostat and management circuit or the like Other electrical chains various are connected together, and these are all to it is known in the art, therefore, the most no longer enter it Row further describes.EBI provides interface.Transceiver 910 can be multiple element, i.e. includes sending Machine and receiver, it is provided that for the unit communicated with other devices various over a transmission medium.For different Subscriber equipment, user interface 930 can also is that can external in connect the interface needing equipment, the equipment of connection Include but not limited to keypad, display, speaker, mike, stick etc..

Processor 900 is responsible for bus architecture and common process, and memorizer 920 can store processor 900 data used when performing operation.

Based on the inventive concept as method, the embodiment of the present invention also provides for sending out of a kind of downlink reference signal Send device, as shown in Figure 10, specifically include:

Antenna port grouping module 1001, at least a line antenna port of horizontal dimensions is grouped, And/or at least string antenna port of vertical dimensions is grouped；

Reference signal resource distribution module 1002, for measuring the cycle for user equipment allocation horizontal dimensions, and The cycle is measured for user equipment allocation vertical dimensions；

Side-play amount distribution module 1003, for descending for the horizontal dimensions on each group antenna port of horizontal dimensions Reference signal distribution side-play amount within the horizontal dimensions measurement cycle；And/or, respectively organize antenna for vertical dimensions The vertical dimensions downlink reference signal distribution on port side-play amount within the vertical dimensions measurement cycle；

Configuration information sending module 1004, measures the cycle for horizontal dimensions is measured cycle and vertical dimensions, And each side-play amount in the horizontal dimensions measurement cycle and/or each skew in the vertical dimensions measurement cycle Amount is sent to described subscriber equipment；

Horizontal dimensions reference signal sending module 1005, for sending level dimension within the horizontal dimensions measurement cycle Degree downlink reference signal；Wherein, if the descending ginseng of horizontal dimensions on each group antenna port of horizontal dimensions Examine the side-play amount that signal is assigned with within the horizontal dimensions measurement cycle, within the horizontal dimensions measurement cycle, send water Flat dimension downlink reference signal, including: the subframe of each side-play amount instruction within the horizontal dimensions measurement cycle On, send horizontal dimensions downlink reference signal by each group antenna port of horizontal dimensions respectively；

Vertical dimensions reference signal sending module 1006, for sending vertical dimension within the vertical dimensions measurement cycle Degree downlink reference signal；Wherein, if the descending ginseng of vertical dimensions on each group antenna port of vertical dimensions Examine the side-play amount that signal is assigned with within the vertical dimensions measurement cycle, send within the vertical dimensions measurement cycle and hang down Straight dimension downlink reference signal, including: the subframe of each side-play amount instruction within the vertical dimensions measurement cycle On, send vertical dimensions downlink reference signal by each group antenna port of vertical dimensions respectively.

Preferably, often between group antenna port and the often group antenna port of adjacent horizontal dimensions of horizontal dimensions All there is an antenna port repeated, the often group antenna port of vertical dimensions and the often group of adjacent vertical dimensions An antenna port repeated all is had between antenna port.

Preferably, described antenna port grouping module 1001 is used for:

Determine the number of packet of at least a line antenna port of described horizontal dimensions；

Determine the antenna port quantity that each group antenna port of horizontal dimensions includes；

The number of packet of at least a line antenna port according to described horizontal dimensions and described horizontal dimensions every The antenna port quantity that group antenna port includes, is grouped at least a line antenna port of described horizontal dimensions, Wherein, the often group antenna port of horizontal dimensions is arranged in horizontal dimensions continuously；

And/or,

Determine the number of packet of at least string antenna port of described vertical dimensions；

Determine the antenna port quantity that each group antenna port of vertical dimensions includes；

The number of packet of at least string antenna port according to described vertical dimensions and described vertical dimensions each The antenna port quantity that group antenna port includes, is grouped at least string antenna port of described vertical dimensions, Wherein, the often group antenna port of vertical dimensions is arranged the most continuously.

Based on the inventive concept as method, the embodiment of the present invention also provides for a kind of base station, its structure such as figure Shown in 11, specifically include:

Processor 1100, for reading the program in memorizer 1120, performs following process:

At least a line antenna port of horizontal dimensions is grouped, and/or by least string sky of vertical dimensions Line cap is grouped；

Measure the cycle for user equipment allocation horizontal dimensions, and measure week for user equipment allocation vertical dimensions Phase；

Distribute in horizontal dimensions for the horizontal dimensions downlink reference signal on each group antenna port of horizontal dimensions Side-play amount in the measurement cycle；And/or, for the descending ginseng of vertical dimensions on each group antenna port of vertical dimensions Examine signal distribution side-play amount within the vertical dimensions measurement cycle；

What horizontal dimensions measured cycle and vertical dimensions measure in cycle, and horizontal dimensions measurement cycle is each Individual side-play amount and/or each side-play amount in the vertical dimensions measurement cycle are sent to described subscriber equipment；

Horizontal dimensions downlink reference signal is sent within the horizontal dimensions measurement cycle；Wherein, tie up if level Horizontal dimensions downlink reference signal on each group antenna port of degree was assigned with within the horizontal dimensions measurement cycle Side-play amount, within the horizontal dimensions measurement cycle send horizontal dimensions downlink reference signal, including: in level In the subframe of each side-play amount instruction in the dimension measurement cycle, that passes through horizontal dimensions respectively respectively organizes antenna end Mouth sends horizontal dimensions downlink reference signal；

Vertical dimensions downlink reference signal is sent within the vertical dimensions measurement cycle；Wherein, if vertical dimension Vertical dimensions downlink reference signal on each group antenna port of degree was assigned with within the vertical dimensions measurement cycle Side-play amount, within the vertical dimensions measurement cycle send vertical dimensions downlink reference signal, including: vertically In the subframe of each side-play amount instruction in the dimension measurement cycle, that passes through vertical dimensions respectively respectively organizes antenna end Mouth sends vertical dimensions downlink reference signal.

Transceiver 1110, for receiving and sending data under the control of processor 1100.

Wherein, in fig. 11, bus architecture can include bus and the bridge of any number of interconnection, specifically The various electricity of the memorizer that the one or more processors represented by processor 1100 and memorizer 1120 represent Road links together.Bus architecture can also by such as ancillary equipment, manostat and management circuit etc. it Other electrical chains various of class are connected together, and these are all to it is known in the art, therefore, the most right It is described further.EBI provides interface.Transceiver 1110 can be multiple element, i.e. wraps Include transmitter and receiver, it is provided that for the unit communicated with other devices various over a transmission medium.Process Device 1100 is responsible for bus architecture and common process, and memorizer 1120 can store processor 1100 The data used when performing operation.

Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or meter Calculation machine program product.Therefore, the present invention can use complete hardware embodiment, complete software implementation or knot The form of the embodiment in terms of conjunction software and hardware.And, the present invention can use and wherein wrap one or more Computer-usable storage medium containing computer usable program code (include but not limited to disk memory, CD-ROM, optical memory etc.) form of the upper computer program implemented.

The present invention is with reference to method, equipment (system) and computer program product according to embodiments of the present invention The flow chart of product and/or block diagram describe.It should be understood that can by computer program instructions flowchart and / or block diagram in each flow process and/or flow process in square frame and flow chart and/or block diagram and/ Or the combination of square frame.These computer program instructions can be provided to general purpose computer, special-purpose computer, embedding The processor of formula datatron or other programmable data processing device is to produce a machine so that by calculating The instruction that the processor of machine or other programmable data processing device performs produces for realizing at flow chart one The device of the function specified in individual flow process or multiple flow process and/or one square frame of block diagram or multiple square frame.

These computer program instructions may be alternatively stored in and computer or the process of other programmable datas can be guided to set In the standby computer-readable memory worked in a specific way so that be stored in this computer-readable memory Instruction produce and include the manufacture of command device, this command device realizes in one flow process or multiple of flow chart The function specified in flow process and/or one 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, makes Sequence of operations step must be performed to produce computer implemented place on computer or other programmable devices Reason, thus the instruction performed on computer or other programmable devices provides for realizing flow chart one The step of the function specified in flow process or multiple flow process and/or one square frame of block diagram or multiple square frame.

Although preferred embodiments of the present invention have been described, but those skilled in the art once know base This creativeness concept, then can make other change and amendment to these embodiments.So, appended right is wanted Ask and be intended to be construed to include preferred embodiment and fall into all changes and the amendment of the scope of the invention.

Obviously, those skilled in the art can carry out various change and modification without deviating from this to the present invention Bright spirit and scope.So, if the present invention these amendment and modification belong to the claims in the present invention and Within the scope of its equivalent technologies, then the present invention is also intended to comprise these change and modification.

Claims (14)

1. a channel state information feedback method, it is characterised in that including:

Receive horizontal dimensions downlink reference signal, and determine level according to described horizontal dimensions downlink reference signal The measurement channel matrix of dimension；And, receive vertical dimensions downlink reference signal, and according to described vertical dimension Degree downlink reference signal determines the measurement channel matrix of vertical dimensions；

Wherein, receive horizontal dimensions downlink reference signal, and true according to described horizontal dimensions downlink reference signal Determine the measurement channel matrix of horizontal dimensions, including: base station configuration the horizontal dimensions measurement cycle in each Receive horizontal dimensions downlink reference signal respectively in the subframe of side-play amount instruction, connect according in each described subframe The horizontal dimensions downlink reference signal received obtains each horizontal dimensions group channel matrix respectively, and according to respectively Individual horizontal dimensions group channel matrix, determines the measurement channel matrix of horizontal dimensions；And/or under reception vertical dimensions Row reference signal, and the measurement channel square of vertical dimensions is determined according to described vertical dimensions downlink reference signal Battle array, including: in the subframe of each side-play amount instruction within the vertical dimensions measurement cycle of base station configuration respectively Receive vertical dimensions downlink reference signal, according to the vertical dimensions descending reference received in each described subframe Signal obtains each vertical dimensions group channel matrix respectively, and according to each vertical dimensions group channel matrix, Determine the measurement channel matrix of vertical dimensions；Receive in each described subframe within the identical dimensional measurement cycle One group of antenna port of the described dimension downlink reference signal that arrives corresponding described dimension respectively, described dimension each Group antenna port is that at least a line or the packet of array antenna port of described dimension are determined by described base station；

Measurement channel matrix according to horizontal dimensions and the measurement channel matrix of vertical dimensions, determine three dimensions Channel matrix；

According to three dimensions channel matrix, determine channel condition information, and by anti-for the channel condition information that determines Feed described base station.

Method the most according to claim 1, it is characterised in that the often group antenna port of identical dimensional And all there is the antenna port of a repeated measure between the often group antenna port of adjacent described dimension；According to respectively Individual described dimension group channel matrix, determines that the measurement channel matrix of described dimension includes:

Dimension group channel matrix each described is modified；

According to each described dimension group channel matrix revised, determine the measurement channel matrix of described dimension.

Method the most according to claim 2, it is characterised in that to dimension group channel square each described Battle array is modified, including:

Obtain according to measured by the antenna port of the described repeated measure often organizing antenna port of described dimension respectively To antenna port channel information, dimension group channel matrix each described is modified, obtain revised respectively Individual described dimension group channel matrix.

The most according to the method in claim 2 or 3, it is characterised in that according to each institute revised State dimension group channel matrix, determine the measurement channel matrix of described dimension, including: from each institute revised State the channel information that dimension group channel matrix removes the antenna port of described repeated measure, determine described dimension Measure channel matrix.

5. the sending method of a downlink reference signal, it is characterised in that including:

At least a line antenna port of horizontal dimensions is grouped, and/or by least string sky of vertical dimensions Line cap is grouped；

Measure the cycle for user equipment allocation horizontal dimensions, and measure week for user equipment allocation vertical dimensions Phase；

Distribute in horizontal dimensions for the horizontal dimensions downlink reference signal on each group antenna port of horizontal dimensions Side-play amount in the measurement cycle；And/or, for the descending ginseng of vertical dimensions on each group antenna port of vertical dimensions Examine signal distribution side-play amount within the vertical dimensions measurement cycle；

What horizontal dimensions measured cycle and vertical dimensions measure in cycle, and horizontal dimensions measurement cycle is each Individual side-play amount and/or each side-play amount in the vertical dimensions measurement cycle are sent to described subscriber equipment；

Horizontal dimensions downlink reference signal is sent within the horizontal dimensions measurement cycle；Wherein, tie up if level Horizontal dimensions downlink reference signal on each group antenna port of degree was assigned with within the horizontal dimensions measurement cycle Side-play amount, within the horizontal dimensions measurement cycle send horizontal dimensions downlink reference signal, including: in level In the subframe of each side-play amount instruction in the dimension measurement cycle, that passes through horizontal dimensions respectively respectively organizes antenna end Mouth sends horizontal dimensions downlink reference signal；

Vertical dimensions downlink reference signal is sent within the vertical dimensions measurement cycle；Wherein, if vertical dimension Vertical dimensions downlink reference signal on each group antenna port of degree was assigned with within the vertical dimensions measurement cycle Side-play amount, within the vertical dimensions measurement cycle send vertical dimensions downlink reference signal, including: vertically In the subframe of each side-play amount instruction in the dimension measurement cycle, that passes through vertical dimensions respectively respectively organizes antenna end Mouth sends vertical dimensions downlink reference signal.

Method the most according to claim 5, it is characterised in that the often group antenna port of horizontal dimensions And all there is an antenna port repeated between the often group antenna port of adjacent horizontal dimensions, vertical dimensions Often all there is an antenna end repeated between group antenna port and the often group antenna port of adjacent vertical dimensions Mouthful.

7. according to the method described in claim 5 or 6, it is characterised in that by least the one of horizontal dimensions Row antenna port is grouped, and/or is grouped by least string antenna port of vertical dimensions, including:

Determine the number of packet of at least a line antenna port of described horizontal dimensions；

Determine the antenna port quantity that each group antenna port of horizontal dimensions includes；

The number of packet of at least a line antenna port according to described horizontal dimensions and described horizontal dimensions every The antenna port quantity that group antenna port includes, is grouped at least a line antenna port of described horizontal dimensions, Wherein, the often group antenna port of horizontal dimensions is arranged in horizontal dimensions continuously；

And/or,

Determine the number of packet of at least string antenna port of described vertical dimensions；

Determine the antenna port quantity that each group antenna port of vertical dimensions includes；

The number of packet of at least string antenna port according to described vertical dimensions and described vertical dimensions each The antenna port quantity that group antenna port includes, is grouped at least string antenna port of described vertical dimensions, Wherein, the often group antenna port of vertical dimensions is arranged the most continuously.

8. an information feedback device, it is characterised in that including:

Measure channel matrix and determine module, be used for receiving horizontal dimensions downlink reference signal, and according to described water Flat dimension downlink reference signal determines the measurement channel matrix of horizontal dimensions；And, receive vertical dimensions descending Reference signal, and the measurement channel matrix of vertical dimensions is determined according to described vertical dimensions downlink reference signal；

Wherein, receive horizontal dimensions downlink reference signal, and true according to described horizontal dimensions downlink reference signal Determine the measurement channel matrix of horizontal dimensions, including: base station configuration the horizontal dimensions measurement cycle in each Receive horizontal dimensions downlink reference signal respectively in the subframe of side-play amount instruction, connect according in each described subframe The horizontal dimensions downlink reference signal received obtains each horizontal dimensions group channel matrix respectively, and according to respectively Individual horizontal dimensions group channel matrix, determines the measurement channel matrix of horizontal dimensions；And/or under reception vertical dimensions Row reference signal, and the measurement channel square of vertical dimensions is determined according to described vertical dimensions downlink reference signal Battle array, including: in the subframe of each side-play amount instruction within the vertical dimensions measurement cycle of base station configuration respectively Receive vertical dimensions downlink reference signal, according to the vertical dimensions descending reference received in each described subframe Signal obtains each vertical dimensions group channel matrix respectively, and according to each vertical dimensions group channel matrix, Determine the measurement channel matrix of vertical dimensions；Receive in each described subframe within the identical dimensional measurement cycle One group of antenna port of the described dimension downlink reference signal that arrives corresponding described dimension respectively, described dimension each Group antenna port is that at least a line or the packet of array antenna port of described dimension are determined by described base station；

Three dimensions channel matrix determines module, for the measurement channel matrix according to horizontal dimensions and vertical dimension The measurement channel matrix of degree, determines three dimensions channel matrix；

Channel condition information determines and feedback module, for according to three dimensions channel matrix, determines channel shape State information, and give described base station by the information feedback that determines.

Device the most according to claim 8, it is characterised in that the often group antenna port of identical dimensional And all there is the antenna port of a repeated measure between the often group antenna port of adjacent described dimension；According to respectively Individual described dimension group channel matrix, when determining the measurement channel matrix of described dimension, measures channel matrix and determines Module is used for:

Dimension group channel matrix each described is modified；

According to each described dimension group channel matrix revised, determine the measurement channel matrix of described dimension.

Device the most according to claim 9, it is characterised in that to dimension group channel square each described Battle array is when being modified, measure channel matrix determine module for:

Obtain according to measured by the antenna port of the described repeated measure often organizing antenna port of described dimension respectively To antenna port channel information, dimension group channel matrix each described is modified, obtain revised respectively Individual described dimension group channel matrix.

11. according to the device described in claim 9 or 10, it is characterised in that according to revised each Described dimension group channel matrix, when determining the measurement channel matrix of described dimension, measures channel matrix and determines mould Block is used for:

The letter of the antenna port of described repeated measure is removed from each described dimension group channel matrix revised Road information, determines the measurement channel matrix of described dimension.

The dispensing device of 12. 1 kinds of downlink reference signals, it is characterised in that including:

Antenna port grouping module, at least a line antenna port of horizontal dimensions is grouped, and/ Or at least string antenna port of vertical dimensions is grouped；

Reference signal resource distribution module, for measuring the cycle for user equipment allocation horizontal dimensions, and for using Family equipment distribution vertical dimensions measures the cycle；

Side-play amount distribution module, for each horizontal dimensions descending reference organized on antenna port for horizontal dimensions Signal distribution side-play amount within the horizontal dimensions measurement cycle；And/or, respectively organize antenna port for vertical dimensions On vertical dimensions downlink reference signal distribution side-play amount within the vertical dimensions measurement cycle；

Configuration information sending module, measures the cycle for horizontal dimensions is measured cycle and vertical dimensions, and Each side-play amount in the horizontal dimensions measurement cycle and/or each side-play amount in the vertical dimensions measurement cycle are sent out Give described subscriber equipment；

Horizontal dimensions reference signal sending module, for sending under horizontal dimensions within the horizontal dimensions measurement cycle Row reference signal；Wherein, if the horizontal dimensions descending reference letter on each group antenna port of horizontal dimensions Number it is assigned with the side-play amount within the horizontal dimensions measurement cycle, within the horizontal dimensions measurement cycle, sends level dimension Degree downlink reference signal, including: in the subframe of each side-play amount instruction within the horizontal dimensions measurement cycle, Horizontal dimensions downlink reference signal is sent respectively by each group antenna port of horizontal dimensions；

Vertical dimensions reference signal sending module, for sending under vertical dimensions within the vertical dimensions measurement cycle Row reference signal；Wherein, if the vertical dimensions descending reference letter on each group antenna port of vertical dimensions Number it is assigned with the side-play amount within the vertical dimensions measurement cycle, within the vertical dimensions measurement cycle, sends vertical dimension Degree downlink reference signal, including: in the subframe of each side-play amount instruction within the vertical dimensions measurement cycle, Vertical dimensions downlink reference signal is sent respectively by each group antenna port of vertical dimensions.

13. devices according to claim 12, it is characterised in that the often group antenna end of horizontal dimensions An antenna port repeated, vertical dimensions is all had between the often group antenna port of mouth and adjacent horizontal dimensions Often group antenna port and adjacent vertical dimensions often group antenna port between all have an antenna repeated Port.

14. according to the device described in claim 12 or 13, it is characterised in that described antenna port is grouped Module is used for:

Determine the number of packet of at least a line antenna port of described horizontal dimensions；

Determine the antenna port quantity that each group antenna port of horizontal dimensions includes；

The number of packet of at least a line antenna port according to described horizontal dimensions and described horizontal dimensions every The antenna port quantity that group antenna port includes, is grouped at least a line antenna port of described horizontal dimensions, Wherein, the often group antenna port of horizontal dimensions is arranged in horizontal dimensions continuously；

And/or,

Determine the number of packet of at least string antenna port of described vertical dimensions；

Determine the antenna port quantity that each group antenna port of vertical dimensions includes；

The number of packet of at least string antenna port according to described vertical dimensions and described vertical dimensions each The antenna port quantity that group antenna port includes, is grouped at least string antenna port of described vertical dimensions, Wherein, the often group antenna port of vertical dimensions is arranged the most continuously, the often group antenna of vertical dimensions The antenna of the identical repetition of polarization is all had between the often group antenna port of port and adjacent vertical dimensions Port.