CN103746779B

CN103746779B - A kind of channel condition information measurement, the sending method of reference signal and device

Info

Publication number: CN103746779B
Application number: CN201310752712.4A
Authority: CN
Inventors: 刘建琴
Original assignee: Shanghai Huawei Technologies Co Ltd
Current assignee: Shanghai Huawei Technologies Co Ltd
Priority date: 2013-12-31
Filing date: 2013-12-31
Publication date: 2017-06-16
Anticipated expiration: 2033-12-31
Also published as: CN107317614A; WO2015101109A1; CN107196749B; CN103746779A; CN107317614B; CN107196749A

Abstract

A kind of channel condition information measurement, the sending method of reference signal and device, method include：The reference signal of transmission equipment the reference signal configuration information for sending and the N number of reference signal port for configuring is received, the reference signal of the N number of reference signal port based on the configuration carries out channel condition information CSI measurements, wherein, N>=6, N number of reference signal port is made up of M group reference signals port, M>=1；The reference signal of the N number of reference signal port based on configuration carries out channel condition information CSI measurements, including：The reference signal to M groups reference signal port Zhong Meizu ports carries out CSI measurements respectively, obtains M the first pre-coding matrix, i.e. W_i, wherein i=1,2 ..., M；Second pre-coding matrix W is obtained according to first pre-coding matrix：Channel quality indicator (CQI) is obtained according to the second pre-coding matrix.The program realizes the measurement of channel condition information.

Description

A kind of channel condition information measurement, the sending method of reference signal and device

Technical field

The present invention relates to communication technical field, more particularly to a kind of channel condition information measurement, the sender of reference signal Method and device.

Background technology

In wireless communication system, transmitting terminal and receiving terminal are higher to obtain using many antennas by the way of spatial reuse Speed.Relative to general method for spacial multiplex, a kind of enhanced technology is：Receiving terminal feeding back channel state information is to transmission End, transmitting terminal uses some precoding techniques to transmission signal according to the channel condition information for obtaining, and greatly improves transmission Performance.

Transmitting terminal sends predefined pilot signal, wherein, the port number of pilot signal is equal to the port number of data is activation, Receiving terminal is based on the predefined pilot signal that transmitting terminal sends, and carries out channel condition information (Channel State Information, CSI) measurement, wherein, CSI includes：Precoding matrix indicators (Precoding Matrix Indicator, PMI), channel quality indicates (Channel Quality Indicator, CQI), and order instruction (Rank Indicator, RI), and pre-coding matrix type instruction (Precoding Type Indicator, PTI) etc..

In order to obtain the covering of cell average spectral efficiency and raising cell edge higher, advanced long-term evolution system (LTE-A, Long Term Evolution Advanced) is descending to support most 8 days on the basis of existing LTE system Line, and some enhanced technologies of feedback are proposed in terms of code book feedback, mainly strengthen the feedback accuracy of code book.For needing A subband or multiple joint subbands of feeding back channel state information, user equipment (UE) is wanted to divide to two PMI of base station feedback Not Wei PMI1 and PMI2, wherein, PMI1 correspondence one code book C1 in code word W₁, the code word in PMI2 another code book of correspondence C2 W₂。

Base station end has the information with user equipment end identical C1 and C2, after receiving PMI1 and PMI2, from corresponding code book Corresponding code word W is found in C1 and C2₁And W₂, the corresponding code book of one virtual code word W of acquisition.In concrete implementation, can determine The sub-codebook of the different Rank of justice correspondence is following (only being illustrated by taking Rank1 and Rank2 as an example herein)：

The code books of table 1.Rank 1

The code books of table 2.Rank 2

When above-mentioned double codebook structures are with another expression-form：W=W₁*W₂, W here₁It is a Block diagonal matrix, W₁= =[X 0；0 X], X is 32 4 antenna discrete Fourier transforms (DFT, Discrete Fourier Transform) wave beam groups Into beam space, W₁Certain wave beam group of adjacent four Wave beam formings in for 32 beam spaces, Rank1,2 times W₁Have 16 Individual selectable wave beam group, W₂For select W to represent wave beam group in certain specific wave beam and carry out two polarised directions Phase place.

With technology develop, antenna scale can from 8 expand to 16,32,64 even it is up to a hundred, with the increase of antenna scale, Corresponding CSI measurements and feedback complexity also accordingly increase.If the CSI measurement pilot design methods before still continuing to use, survey Amount pilot-frequency expense will linearly be doubled and redoubled with the increase of antenna scale.As 4 port CSI-RSs in current LTE system set In meter, in each Physical Resource Block (PRB, Physical Resource Block), the CSI-RS per port occupies 1 or 2 money Source unit, when same day line gauge mould increases to dozens or even hundreds of, the Resource Unit number shared by CSI-RS in every PRB will be outstanding Its is huge, so as to cause the efficient resource number of unit for being actually available to data transfer very little.

The content of the invention

The embodiment of the present invention provides a kind of channel condition information measurement, the sending method of reference signal and device, effectively carries The resource utilization of data transfer high.

Embodiment of the present invention first aspect provides a kind of channel state information measurement, and methods described includes：

Receive the reference signal of transmission equipment the reference signal configuration information for sending and the N number of reference signal port for configuring；

The reference signal of the N number of reference signal port based on the configuration carries out channel condition information CSI measurements, wherein, N >=6, N number of reference signal port is made up of M group reference signals port, M>=1；

Wherein, the reference signal of the N number of reference signal port based on configuration carries out channel condition information CSI measurements, Including：The reference signal to M groups reference signal port Zhong Meizu ports carries out CSI measurements respectively, obtains M first and prelists Code matrix, i.e. W_i, wherein i=1,2 ..., M；Second pre-coding matrix W is obtained according to first pre-coding matrix：Channel quality indicator (CQI) is obtained according to second pre-coding matrix.

In the first possible implementation of embodiment of the present invention first aspect, methods described also includes：

The corresponding precoding matrix indicators PMI of the second pre-coding matrix and the letter are fed back to the transmission equipment Road quality indicator (CQI).

With reference to the embodiment of the present invention in a first aspect, or in the first possible implementation of first aspect, of the invention real Apply may be in implementation second of a first aspect：

The reference signal of N number of reference signal port of the configuration, is sent by the transmission equipment in same subframe.

With reference to the embodiment of the present invention in a first aspect, or first aspect the first or second may in implementation, In the third possible implementation of embodiment of the present invention first aspect：

The reference signal port number of M groups reference signal port Zhong Meizu ports is a matter of main aerial port number Number.

Embodiment of the present invention second aspect provides a kind of sending method of reference signal, and methods described includes：

Configure N number of reference signal port, N>=6, N number of reference signal port is made up of M group reference signals port, M> =1；

Send the reference signal configuration information of N number of reference signal port；

N number of reference signal port and the reference signal configuration information according to the configuration, send the N number of of the configuration The reference signal of reference signal port；

Wherein, the reference signal of N number of reference signal port of the configuration is used for N number of ginseng of the receiving device to the configuration Examining the reference signal of signal port carries out channel condition information CSI measurements, including：Respectively in the M groups reference signal port Every group of reference signal of port carries out CSI measurements, obtains M the first pre-coding matrix, i.e. W_i, wherein i=1,2 ..., M；According to First pre-coding matrix obtains the second pre-coding matrix W：According to second precoding Matrix obtains channel quality indicator (CQI).

In with reference to the first possible implementation of embodiment of the present invention second aspect, methods described also includes：

Receive the corresponding precoding matrix indicators PMI of second pre-coding matrix and the institute of the receiving device feedback Channel quality indicator (CQI) is stated, and pre-encode operation is carried out according to the PMI and CQI.

In with reference to embodiment of the present invention second aspect, or the first possible implementation of second aspect, of the invention real Apply may be in implementation second of a second aspect：

The reference signal of N number of reference signal port of the configuration sends in same subframe.

With reference to embodiment of the present invention second aspect, or second aspect the first or second may in implementation, In the third possible implementation of embodiment of the present invention second aspect：

The embodiment of the present invention third aspect provides a kind of channel condition information measurement apparatus, and described device includes：Connect respectively It is connected to transceiver and processor in bus；

The transceiver, for receiving the reference signal configuration information of transmission equipment transmission and N number of reference signal of configuration The reference signal of port；

The processor, the reference signal for N number of reference signal port of the configuration received based on the transceiver is entered Row channel condition information CSI is measured, wherein, N>=6, N number of reference signal port is made up of M group reference signals port, M> =1；

Wherein, the reference signal of the N number of reference signal port based on configuration carries out channel condition information CSI measurements, Including：The reference signal to M groups reference signal port Zhong Meizu ports carries out CSI measurements respectively, obtains M first and prelists Code matrix, i.e. W_i, wherein i=1,2 ..., M；Second pre-coding matrix W is obtained according to first pre-coding matrix：Channel quality indicator (CQI) is obtained according to second pre-coding matrix；

In the first possible implementation of the embodiment of the present invention third aspect：

The transceiver, is additionally operable to feed back the corresponding pre-coding matrix of second pre-coding matrix to the transmission equipment Designator PMI and channel quality indicator (CQI).

In with reference to the embodiment of the present invention third aspect, or the first possible implementation of the third aspect, of the invention real Apply in second possible implementation of a third aspect, the transceiver is additionally operable to receive the transmission equipment same The reference signal of N number of reference signal port of the configuration sent in subframe.

With reference to the embodiment of the present invention third aspect, or the third aspect the first or second may in implementation, In the third possible implementation of the embodiment of the present invention third aspect, the ginseng of M groups reference signal port Zhong Meizu ports Examine the prime number that signal port number is main aerial port number.

Embodiment of the present invention fourth aspect provides a kind of dispensing device of reference signal, and the transmission equipment includes：Respectively Processor and transceiver in bus are connected to,

The processor, for configuring N number of reference signal port, N>=6, N number of reference signal port is referred to by M groups Signal port is constituted, M>=1；

The transceiver, the reference signal configuration information of the N number of reference signal port for sending the processor configuration, N number of reference signal port and the reference signal configuration information according to the configuration, send N number of reference signal of the configuration The reference signal of port；Wherein, the reference signal of N number of reference signal port of configuration is used for N of the receiving device to the configuration The reference signal of individual reference signal port carries out channel condition information CSI measurements, including：Respectively to the M groups reference signal end Every group of reference signal of port carries out CSI measurements in mouthful, obtains M the first pre-coding matrix, i.e. W_i, wherein i=1,2 ..., M； Second pre-coding matrix W is obtained according to first pre-coding matrix：It is pre- according to described second Encoder matrix obtains channel quality indicator (CQI).

In the first possible implementation of embodiment of the present invention fourth aspect：

The transceiver, is additionally operable to receive the corresponding precoding of second pre-coding matrix of the receiving device feedback Matrix Indicator PMI and channel quality indicator (CQI)；

The processor, is additionally operable to the corresponding precoding square of second pre-coding matrix received according to the transceiver Battle array designator PMI and channel quality indicator (CQI) carry out pre-encode operation.

In with reference to embodiment of the present invention fourth aspect, or the first possible implementation of fourth aspect, of the invention real Apply may be in implementation second of a fourth aspect, the transceiver, specifically for by N number of reference signal of the configuration The reference signal of port sends in same subframe.

With reference to embodiment of the present invention fourth aspect, or fourth aspect the first or second may in implementation, In the third possible implementation of embodiment of the present invention fourth aspect：

Reference signal port number in the Zhong Meizu ports of the M groups reference signal port is a matter of main aerial port number Number.

The aspect of the embodiment of the present invention the 5th provides a kind of channel state information measurement, and methods described includes：

Reference signal to N number of reference signal port of the configuration carries out channel condition information CSI measurements；Wherein, institute N number of reference signal port is stated to be made up of M group reference signals port, and M>=1；

Wherein, the reference signal of the N number of reference signal port based on the configuration carries out channel condition information measurement, bag Include：The reference signal to M groups reference signal port Zhong Meizu ports carries out CSI measurements respectively, obtains every group of reference The corresponding weighted value of signal port, and the first pre-coding matrix and/or the second pre-coding matrix are worth to according to the weighting；Root The 3rd pre-coding matrix is obtained according to first pre-coding matrix and/or the second pre-coding matrix；According to the 3rd precoding Matrix obtains channel quality indicator (CQI)；

Wherein, in first pre-coding matrix, differed between the corresponding weighted value in any two groups of reference signal ports One phase term；And/or in second pre-coding matrix, the corresponding weighted value in any two groups of reference signal ports it Between differ a phase term.

In the first possible implementation of the aspect of the embodiment of the present invention the 5th, methods described also includes：

The corresponding precoding matrix indicators PMI of the 3rd pre-coding matrix and channel matter are fed back to the transmission equipment Amount instruction CQI.

In with reference to the aspect of the embodiment of the present invention the 5th, or the first possible implementation of the 5th aspect, of the invention real Apply may be in implementation second of the aspect of example the 5th：

The N is less than or equal to main aerial port number.

With reference to the aspect of the embodiment of the present invention the 5th, or the 5th aspect the first or second may in implementation, In the third possible implementation of the aspect of the embodiment of the present invention the 5th, the phase term isForm, whereinIt is [0,2 π] between an angle.

With reference to the aspect of the embodiment of the present invention the 5th, or the 5th aspect the first to any in the third possible implementation Possible implementation is planted, it is described according to described first in the 4th kind of possible implementation of the aspect of the embodiment of the present invention the 5th Pre-coding matrix and the second pre-coding matrix obtain the 3rd pre-coding matrix, including：

3rd pre-coding matrix is expressed as：

Wherein, W is the 3rd pre-coding matrix, W₁It is first pre-coding matrix, W₁In i-th diagonal blocks pair The corresponding weighted value in i-th group of reference signal port is answered, wherein, the value of i is 1 to M；W₂It is second pre-coding matrix, It is the phase difference of the corresponding weighted value in i+1 group reference signal port weighted value corresponding with the 1st group of reference signal port.

With reference to the aspect of the embodiment of the present invention the 5th, or the 5th aspect the first to any in the third possible implementation Possible implementation is planted, in the 5th kind of possible implementation of the aspect of the embodiment of the present invention the 5th：

It is described that 3rd pre-coding matrix is obtained according to first pre-coding matrix and the second pre-coding matrix, including：Will 3rd pre-coding matrix is expressed as：

Wherein, W is the 3rd pre-coding matrix, W₁It is first pre-coding matrix, W₂It is the second precoding square Battle array, W₂In the corresponding weighted value in i-th group of reference signal port of the i-th row correspondence, wherein, the value of i is 1 to M；It is i+1 group The phase difference of the corresponding weighted value in reference signal port weighted value corresponding with the 1st group of reference signal port.

The aspect of the embodiment of the present invention the 6th provides a kind of sending method of reference signal, and methods described includes：

Configure the reference signal of N number of reference signal port, N>=6, N number of reference signal port is by M group reference signals Port constitutes, M>=1；

The reference signal configuration information of N number of reference signal port of the configuration is sent, and according to N number of ginseng of the configuration Signal port and the reference signal configuration information are examined, reference signal is sent；

The reference signal that the reference signal is used for N number of reference signal port that receiving device is based on the configuration carries out letter Channel state information CSI is measured, and obtains the 3rd precoding square determined according to the first pre-coding matrix and/or the second pre-coding matrix Battle array, channel quality indicator (CQI) is obtained according to the 3rd pre-coding matrix；

Wherein, the reference signal of N number of reference signal port of the receiving device based on the configuration carries out channel status Information CSI is measured, including：The reference signal to M groups reference signal port Zhong Meizu ports carries out CSI measurements respectively, obtains To the corresponding weighted value in every group of reference signal port, and according to it is described weighting be worth to first pre-coding matrix and/ Or second pre-coding matrix；

Wherein, in first pre-coding matrix, the corresponding weighted value difference in any two groups of reference signal ports One phase term；And/or in second pre-coding matrix, the corresponding weighted value phase in any two groups of reference signal ports Differ from a phase term.

In the first possible implementation of the aspect of the embodiment of the present invention the 6th, methods described also includes：

Receive the corresponding precoding matrix indicators PMI of the 3rd pre-coding matrix and letter of the receiving device feedback Road quality indicator (CQI), and pre-encode operation is carried out according to the PMI and CQI.

With reference to the aspect of the embodiment of the present invention the 6th, or the first the possible implementation in terms of the 6th, implement in the present invention In second possible implementation of the aspect of example the 6th：

The N is less than or equal to main aerial port number.

With reference to the aspect of the embodiment of the present invention the 6th, or the first of the 6th aspect may be any in implementation to second Possible implementation is planted, in the third possible implementation of the aspect of the embodiment of the present invention the 6th, the phase term is's Form, whereinIt is an angle between [0,2 π].

With reference to the aspect of the embodiment of the present invention the 6th, or the 6th aspect the first to any in the third possible implementation Possible implementation is planted, in the 4th kind of possible implementation of the aspect of the embodiment of the present invention the 6th,

3rd pre-coding matrix is expressed as：

With reference to the aspect of the embodiment of the present invention the 6th, or the 6th aspect the first to any in the third possible implementation Possible implementation is planted, in the 5th kind of possible implementation of the aspect of the embodiment of the present invention the 6th：

3rd pre-coding matrix is expressed as：

The aspect of the embodiment of the present invention the 7th provides a kind of channel condition information measurement apparatus, and described device includes：Connect respectively It is connected on transceiver and processor in bus；

The processor, the reference signal for N number of reference signal port of the configuration received to the transceiver is carried out Channel condition information CSI is measured；Wherein, N number of reference signal port is made up of M group reference signals port, and M>=1；

Wherein, in first pre-coding matrix, differed between the corresponding weighted value in any two groups of reference signal ports One phase term；And/or, in second pre-coding matrix, the corresponding weighted value in any two groups of reference signal ports Between differ a phase term.

In the first possible implementation of the aspect of the embodiment of the present invention the 7th：

The transceiver, is additionally operable to feed back the 3rd pre-coding matrix correspondence that the processor is obtained to the transmission equipment Precoding matrix indicators PMI and channel quality indicator (CQI).

With reference to the aspect of the embodiment of the present invention the 7th, or the first the possible implementation in terms of the 7th, implement in the present invention In second possible implementation of the aspect of example the 7th：

The N is less than or equal to main aerial port number.

With reference to the aspect of the embodiment of the present invention the 7th, or the first of the 7th aspect may be any in implementation to second Possible implementation is planted, in the third possible implementation of the aspect of the embodiment of the present invention the 7th, the phase term is's Form, whereinIt is an angle between [0,2 π].

With reference to the aspect of the embodiment of the present invention the 7th, or the 7th aspect the first to any in the third possible implementation Possible implementation is planted, in the 4th kind of possible implementation of the aspect of the embodiment of the present invention the 7th,

The processor is specifically for the 3rd pre-coding matrix is expressed as：

Wherein, W is the 3rd pre-coding matrix, W₁It is first pre-coding matrix, W₁In i-th diagonal blocks pair The corresponding weighted value in i-th group of reference signal port is answered, wherein, the value of i is 1 to M；W₂It is second pre-coding matrix,For The phase difference of the corresponding weighted value in i+1 group reference signal port weighted value corresponding with the 1st group of reference signal port.

With reference to the aspect of the embodiment of the present invention the 7th, or the 7th aspect the first to any in the third possible implementation Possible implementation is planted, in the 5th kind of possible implementation of the aspect of the embodiment of the present invention the 7th,

The processor is specifically for the 3rd pre-coding matrix is expressed as：

Wherein, W is the 3rd pre-coding matrix, W₁It is first pre-coding matrix, W₂It is the second precoding square Battle array, W₂In the corresponding weighted value in i-th group of reference signal port of the i-th row correspondence, wherein, the value of i is 1 to M；It is i+1 The phase difference of the corresponding weighted value in group reference signal port weighted value corresponding with the 1st group of reference signal port.

Embodiment of the present invention eighth aspect provides a kind of dispensing device of reference signal, and described device includes：Connect respectively In the transceiver and processor of bus,

The processor, the reference signal for configuring N number of reference signal port, N>=6, N number of reference signal end Mouth is made up of M group reference signals port, M>=1；

The transceiver, the reference signal configuration information of the N number of reference signal for sending the processor configuration, and root N number of reference signal port and the reference signal configuration information according to the configuration, send reference signal；

Wherein, in the first pre-coding matrix, the corresponding weighted value in any two groups of reference signal ports differs one Phase term；And/or, in the second pre-coding matrix, the corresponding weighted value in any two groups of reference signal ports differs one Phase term.

In the first possible implementation of embodiment of the present invention eighth aspect：

The transceiver, is additionally operable to receive the corresponding precoding of the 3rd pre-coding matrix of the receiving device feedback Matrix Indicator PMI and channel quality indicator (CQI)；

The processor, the PMI and CQI for being additionally operable to be received according to the transceiver carries out pre-encode operation.

With reference to embodiment of the present invention eighth aspect, or eighth aspect the first possible implementation, implement in the present invention In second possible implementation of example eighth aspect,

The N is less than or equal to main aerial port number.

With reference to embodiment of the present invention eighth aspect, or the first of eighth aspect may be any in implementation to second Possible implementation is planted, in the third possible implementation of embodiment of the present invention eighth aspect, the phase term is's Form, whereinIt is an angle between [0,2 π].

With reference to embodiment of the present invention eighth aspect, or eighth aspect the first to any in the third possible implementation Possible implementation is planted, in the 4th kind of possible implementation of embodiment of the present invention eighth aspect,

3rd pre-coding matrix is expressed as：

Wherein, W is the 3rd pre-coding matrix, W₁It is first pre-coding matrix, W₁In i-th diagonal blocks pair I-th group of reference signal port is answered in corresponding weighted value, wherein, the value of i is 1 to M；W₂It is second pre-coding matrix, It is the phase difference of the corresponding weighted value in i+1 group reference signal port weighted value corresponding with the 1st group of reference signal port.

With reference to embodiment of the present invention eighth aspect, or eighth aspect the first to any in the third possible implementation Possible implementation is planted, in the 5th kind of possible implementation of embodiment of the present invention eighth aspect,

3rd pre-coding matrix is expressed as：

The embodiment of the present invention provides a kind of channel state information measurement and device, and the correlation of pilot tone is measured using CSI Property be designed, substantially reduce measurement pilot tone expense, especially with the increase of antenna scale, effectively increase data biography Defeated resource utilization.

Brief description of the drawings

In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also Other accompanying drawings are obtained with according to these accompanying drawings.

Fig. 1 is a kind of channel state information measurement general flow chart that the embodiment of the present invention one is provided；

Fig. 2 is a kind of sending method general flow chart of reference signal that the embodiment of the present invention two is provided；

Fig. 3 is a kind of aerial array simplified schematic diagram that the embodiment of the present invention three is provided；

Fig. 4 is another aerial array simplified schematic diagram that the embodiment of the present invention three is provided；

Fig. 5 is a kind of channel condition information measurement apparatus simplified schematic diagram that the embodiment of the present invention four is provided；

Fig. 6 is a kind of dispensing device simplified schematic diagram of reference signal that the embodiment of the present invention five is provided；

Fig. 7 is a kind of channel state information measurement general flow chart that the embodiment of the present invention six is provided；

Fig. 8 is a kind of sending method general flow chart of reference signal that the embodiment of the present invention seven is provided；

Fig. 9 is that aerial array is divided into 4 equal antenna sets schematic diagrames in the embodiment of the present invention eight；

Figure 10 is that the precoding matrix information of the first two antenna sets in the embodiment of the present invention eight is pre- with latter two antenna sets The schematic diagram of encoder matrix information common phase position；

Figure 11 is that phase information is reflected in W in the embodiment of the present invention eight₁Phase difference simplified schematic diagram when middle；

Figure 12 is that phase information is reflected in W in the embodiment of the present invention nine₂Phase difference simplified schematic diagram when middle；

Figure 13 is a kind of channel condition information measurement apparatus simplified schematic diagram that the embodiment of the present invention ten is provided；

Figure 14 is a kind of dispensing device simplified schematic diagram of reference signal that the embodiment of the present invention 11 is provided.

Specific embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made Embodiment, belongs to the scope of protection of the invention.

With increasing for antenna port number, whole aerial array is divided into multiple groups, according to the correlation of each antenna sets, Corresponding pilot measurement is carried out, the CSI information to whole aerial array corresponding ports can be realized with less pilot measurement Measurement (including precoding matrix indicators PMI, channel quality indicator (CQI) etc.).

Embodiment one

A kind of channel state information measurement is the embodiment of the invention provides, the method for the present embodiment is receiving device ratio If user equipment or base station etc. are for the method performed by receiving the equipment of signal, flow chart is as shown in figure 1, the method includes：

Step A1, receives the reference signal configuration information that transmission equipment sends, and receives N number of reference signal port of configuration Reference signal；It can be the equipment for sending signal such as user equipment or base station wherein to send equipment, and the transmission equipment with The receiving device for performing the present embodiment method is corresponding, such as when the equipment of transmission is user equipment, then receiving device is base station, when Transmission equipment is base station, then receiving device is user equipment.

Step A2, the reference signal of the N number of reference signal port to configuring carries out channel condition information CSI measurements, wherein, N>=6, N number of reference signal port is made up of M group reference signals port, M>=1.Wherein, reference signal configuration information is The necessary information of finger transmission equipment transmission reference signal on N number of reference signal port of configuration, such as reference signal port number, Running time-frequency resource information shared by port numbers, each reference signal port, and M group reference signals port is the packet how to be grouped Information etc., receiving device needs that the reference signal of N number of reference signal port could be received according to the reference signal configuration information.

Wherein, the reference signal of the N number of reference signal port for being configured in step A1, can be same by transmission equipment Sent in subframe.Also, it should be noted that the reference signal port number of M groups reference signal port Zhong Meizu ports can be with It is a prime number of main aerial port number.Here antenna end when main aerial port number can be the business datum transmitting of same cell Antenna port sum corresponding to mouth sum or base station side antenna configuration.

Wherein, the reference signal of the N number of reference signal port based on configuration in the step A2 carries out channel condition information CSI is measured, and A21 to A23 can be realized as follows, specifically：

Step A21, respectively the reference signal to M groups reference signal port Zhong Meizu ports carry out CSI measurements, obtain M the first pre-coding matrix, i.e. W_i, wherein i=1,2 ..., M；

Step A22, the second pre-coding matrix W is obtained according to first pre-coding matrix： That is the second pre-coding matrix W is obtained by M the first pre-coding matrix direct product；

Step A23, obtains channel quality and indicates i.e. CQI according to the second pre-coding matrix.

Further, in other specific embodiments, receiving device can be obtained to the feedback measurement of above-mentioned transmission equipment The corresponding precoding matrix indicators PMI of the second pre-coding matrix and channel quality indicator (CQI)；So transmitting equipment just can be with Pre-encode operation is carried out according to PMI and CQI.

In a kind of channel state information measurement provided in an embodiment of the present invention, the correlation of pilot tone is measured using CSI It is designed so that the port number (i.e. above-mentioned M groups port) for sending device configuration is much smaller than transmission equipment actual transmission data When port number, such as send equipment actual transmission data port number be 32, can be by 32 ports in the embodiment of the present invention Effective packet and virtual weighting finally give 5 groups of reference signal ports, and (every group includes 2 reference signal ports, totally 10 references Signal port), so final receiving device only needs to carry out channel condition information measurement to this 10 reference signals of port, with Receiving device needs to carry out CSI measurements to the reference signal for sending all of the port during equipment actual transmission data in the prior art Compare, the method in the embodiment of the present invention substantially reduces the expense of measurement pilot tone, especially with the increase of antenna scale, has Effect improves the resource utilization of data transfer.

Embodiment two

The embodiment of the present invention provides a kind of sending method of reference signal, and the method for the present embodiment is by user equipment or base The method that the transmission equipment for sending signal such as stand is performed, the method in its embodiment is method institute in above-described embodiment one The method performed by the corresponding transmission equipment of receiving device stated, wherein receiving device can be that user equipment or base station etc. are used for The equipment for receiving signal, and the receiving device is corresponding with the transmission equipment for performing the present embodiment method, such as when the equipment of transmission It is user equipment, then receiving device is base station, when the equipment of transmission is base station, then receiving device is user equipment.

Method flow diagram in the present embodiment is as shown in Fig. 2 the method includes：

Step B1, configures N number of reference signal port, N>=6, N number of reference signal port is by M group reference signals port Composition, M>=1.

Step B2, sends the reference signal configuration information of N number of reference signal port, according to the N number of with reference to letter of the configuration Number port and the reference signal configuration information of reference signal port, send the reference signal of N number of reference signal port；Wherein Reference signal configuration information refers to the necessary information that transmission equipment sends reference signal on N number of reference signal port of configuration, Such as reference signal port number, the running time-frequency resource information shared by port numbers, each reference signal port, and M group reference signals Port is the grouping information how to be grouped etc., and receiving device needs that according to the reference signal configuration information N number of reference could be received The reference signal of signal port.

The reference signal of N number of reference signal port of above-mentioned configuration carries out channel condition information CSI surveys for receiving device Amount, including：The reference signal port to M groups reference signal port Zhong Meizu ports carries out CSI measurements respectively, obtains M First pre-coding matrix, i.e. W_i, wherein i=1,2 ..., M；Second pre-coding matrix W is obtained according to first precoding：Channel quality indicator (CQI) is obtained according to the second pre-coding matrix.

Also, it should be noted that the reference signal of N number of reference signal port of the configuration can be in same subframe Send.Reference signal port number in the Zhong Meizu ports of M group reference signals port can be a prime number of main aerial port number. Here antenna port sum or base station side antenna configuration institute when main aerial port number can be the business datum transmitting of same cell Corresponding antenna port sum.

In a kind of sending method of reference signal provided in an embodiment of the present invention, the correlation using CSI measurement pilot tones is entered Row design so that when sending the port number N (i.e. above-mentioned M groups port) of device configuration much smaller than transmission equipment actual transmission data Port number, so final receiving device only needs to carry out channel condition information measurement to the reference signal of this M groups port, and existing Receiving device needs to carry out the reference signal for sending all of the port during equipment actual transmission data CSI measurement phases in technology Than the expense that, the method in the embodiment of the present invention substantially reduces measurement pilot tone, especially with the increase of antenna scale, effectively Improve the resource utilization of data transfer.

Embodiment three

The embodiment of the invention provides a kind of channel state information measurement.

Before being illustrated to scheme provided in an embodiment of the present invention, it is to be understood that the precoding of all antenna ports Matrix Indicator (PMI), is by the precoding matrix indicators PMI of multiple antenna port groups_m, (wherein, PMI_mRepresent m groups The precoding matrix indicators of antenna port) combine and obtain, therefore, the channel status of channel condition information measurement can be will be specific to The antenna port of information reference signal (CSI-RS, Channel State Information-Reference Signal) is divided into Multiple antenna port groups not at the same level, measurement obtains the precoding matrix indicators of each antenna port group not at the same level, so that Obtain the total precoding matrix indicators of all antenna ports.Referring to equation below：

The precoding matrix indicators of measurement CSI-RS ports not at the same level, are equivalent to measuring reference signals on spatial domain Multistep is carried out to disassemble and be grouped.Specifically, by taking following transmission equipment main aerial port number 64 as an example, 32 of same polarization direction Antenna port is divided into 5 groups, wherein, each physical antenna port in same polarization direction in each circle, or virtual-antenna end Mouth forms a port group.And 64 antenna ports of whole are divided into 6 groups, each group of physics or virtual-antenna port number Be 2, i.e. 64=(2*2) * (2*2) * 2*2.Describe in detail as follows：

, by same polarization direction, such as two levels of positive 45 degree of polarised directions are to antenna port group for first group of antenna port Into.If 2 levels of positive 45 degree of polarised directions in the dotted-line ellipse frame 1 of level in Fig. 3 are to antenna port.

Second group of antenna port is vertically constituted from two of same polarization direction to antenna port, vertical ellipse in such as Fig. 3 2 of positive 45 degree of polarised directions are vertical to antenna port in dotted line frame 2.

The first group and second group CSI measurement of antenna port (including precoding matrix indicators and channel quality instruction etc.) Can guarantee that the level of obtaining to 2 antenna ports and the letter of the vertical first order reference signal antenna port opened to 2 antenna ports Channel state information (such as precoding matrix indicators：PMI1 etc.).

3rd group of antenna port is made up of two levels to the first virtual-antenna port, wherein, the first virtual-antenna port Obtained by the weighting of first order reference signal antenna port omnidirectional.As all reference signal antenna ports in the circle 3 of Fig. 3 virtually add Power obtains the level of the second level to virtual port one, and all reference signal antenna ports enclosed in 4 are virtually weighted and obtain second The level of level is to virtual port two, the 3rd group of day of horizontal direction second level virtual port one and the recomposition of second level virtual port two Line end mouthful.

4th group of antenna port is vertically constituted from two to the first virtual-antenna port, wherein, the first virtual-antenna port Obtained by the weighting of first order reference signal antenna port omnidirectional.As all reference signal antenna ports in the circle 3 of Fig. 3 virtually add Power obtain the second level it is vertical to virtual port one, and all reference signal antenna ports enclosed in 5 virtually weighting obtains the Two grades vertical to virtual port two, vertically to second level virtual port one and the 4th group of the recomposition of second level virtual port two Antenna port.

3rd group and the 4th group CSI of antenna port (including precoding matrix indicators and channel quality instruction etc.) is surveyed Amount, it is ensured that obtain two levels and join to the vertical second level opened to the first virtual port of the first virtual port and two Examine the channel condition information (such as precoding matrix indicators (PMI2) etc.) of signal antenna port.

5th group of antenna port is made up of two the second virtual-antenna of horizontal direction ports, the second virtual-antenna port by The weighting of second level pilot tone antenna port omnidirectional is obtained.That is all reference signal antenna ports in the circle 11 of Fig. 3 are virtually weighted Level to the third level is to virtual port one, and all reference signal antenna ports enclosed in 12 are virtually weighted and obtain the third level Level is to virtual port two, the 5th group of antenna end of horizontal direction third level virtual port one and the recomposition of third level virtual port two Mouthful.

6th group of antenna port is made up of two the 3rd virtual-antenna ports, wherein, first the 3rd virtual-antenna end Mouthful first all antenna port of polarised direction of correspondence virtually weight the antenna port for obtaining, and second the 3rd virtual-antenna Port second all antenna port of polarised direction of correspondence virtually weight the antenna port for obtaining.

Therefore, the basic antenna block of a 2*2 in the first order dimension respective antenna array of total precoding matrix information (4 aerial arrays of+45 degree polarised directions as shown in the most ringlet in Fig. 4)；The second level dimension of total precoding matrix information The basic antenna block of (2*2) * (2*2) (secondary great circle in such as Fig. 4 being made up of first order dimension in degree respective antenna array 16+45 aerial arrays of degree polarised direction of shown four ringlets composition)；The third level dimension of total precoding matrix information Second level dimension is formed in respective antenna array a basic block (the most great circle being made up of two time great circles in figure below, due to Here the number deficiency of secondary great circle is to form complete third level dimension, therefore the corresponding aerial array of third level dimension is second Level corresponding aerial array block (2*2) * (2*2) of dimension is in horizontal direction two-dimensional expansion (2*2) * (2*2) * 2, therefore for obtaining After one total precoding information of polarised direction (i.e. third level precoding) extend the precoding obtained in all polarised directions again Matrix information 64=(2*2) * (2*2) * 2*2.

With described above packet scheme, it is necessary to measurement CSI-RS port numbers (including：Physical antenna port and virtual Antenna port) as shown in figure 4, the antenna port of numeral is indicated in i.e. Fig. 4, wherein, physical antenna port includes：Numbering is 1,2, 3,44 antenna ports, virtual-antenna port is included with virtual-antenna port shown in the circle in Fig. 4：Numbering is 5,6,7,8,9, 10th, 11,12 virtual-antenna port, the CSI-RS ports that each circle is represented are the virtual-antenna end after omnidirectional virtually weighting Mouthful.

Due to the correlation between antenna port group, the CSI-RS ports total quantity needed for CSI measurements is each after decomposing The sum of level or each group CSI-RS port numbers.Further, the CSI-RS port numbers needed for the CSI measurements are total port number Sum of all minimum prime number that decomposition is obtained, such as when total port number for 24 when, can be analyzed to due to 24：24=2*2*2*3, because CSI-RS port numbers needed for this CSI measurements are 2+2+2+3.It is many in view of the main aerial port number under LTE and lte-a system It is 2 power, it is assumed that the antenna port sum of transmitting terminal is 2^n, and the CSI-RS port numbers of measurement are only 2* needed for this programme n.Therefore, the program greatly reduces the complexity and pilot-frequency expense of pilot design.

According to the above-mentioned explanation to scheme provided in an embodiment of the present invention, N (wherein, usual N of the program for configuration> =6) individual CSI-RS ports carry out CSI measurements, wherein, N number of CSI-RS ports of configuration send simultaneously in a subframe, the N Individual CSI-RS ports are divided into M groups according to predefined criterion, wherein, M is the integer more than zero, according to the CSI- in described every group (port) carries out CSI measurements for RS ports, obtains the first pre-coding matrix W_m：W_m, m=1 ..., M are further pre- according to described first Encoder matrix, obtains the second pre-coding matrix W：According to second pre-coding matrix, obtain CQI, finally can feed back the second pre-coding matrix PMI and CQI to the equipment of transmission.

Specifically by taking above-mentioned main aerial port number 64 as an example, every group in M groups includes 2 CSI-RS ports, in this hair In the method that bright embodiment is provided：

(1) 2 CSI-RS port in described every group carry out CSI measurements, obtain the first pre-coding matrix：r_m=1,2；Wherein, m is m-th first pre-coding matrixes, and r_mIt is described m-th first pre-coding matrixes Order.

(2) according to first pre-coding matrix, the second pre-coding matrix W is obtained：

Example IV

The embodiment of the present invention provides a kind of channel condition information measurement apparatus, i.e. reception described in above-described embodiment one sets It is standby, as shown in figure 5, described device includes：It is connected respectively to transceiver 501 and processor 502 in bus；Wherein, with reference to letter Number configuration information refers to the necessary information that transmission equipment sends reference signal on N number of reference signal port of configuration, such as join Examining signal port number, port numbers, the running time-frequency resource information shared by each reference signal port, and M group reference signals port is Grouping information how to be grouped etc., receiving device needs that according to the reference signal configuration information N number of reference signal end could be received The reference signal of mouth.

The transceiver 501, for receiving the reference signal configuration information of transmission equipment transmission and N number of reference letter of configuration The reference signal of number port；

The processor 502, the reference of the N number of reference signal port of configuration for being received based on the transceiver 501 Signal carries out channel condition information CSI measurements, wherein, N>=6, N number of reference signal port is by M group reference signal port sets Into M>=1.

Wherein, the reference signal of the N number of reference signal port based on configuration carries out channel condition information CSI measurements, Including：The reference signal to M groups reference signal port Zhong Meizu ports carries out CSI measurements respectively, obtains M first and prelists Code matrix, i.e. W_i, wherein i=1,2 ..., M；Second pre-coding matrix W is obtained according to first pre-coding matrix：Channel quality indicator (CQI) is obtained according to the second pre-coding matrix；

Optionally, the transceiver 501, also particularly useful for the institute that the reception transmission equipment sends in same subframe State the reference signal of N number of reference signal port of configuration.Optionally, the reference of M groups reference signal port Zhong Meizu ports Signal port number is a prime number of main aerial port number.

Further, in other specific embodiments, transceiver 501 is additionally operable to pre- to above-mentioned transmission equipment feedback second The corresponding precoding matrix indicators PMI of encoder matrix and channel quality indicator (CQI), to cause that transmission equipment carries out precoding.

A kind of channel condition information measurement apparatus provided in an embodiment of the present invention, the correlation using CSI measurement pilot tones is entered Row design so that port when sending the port number (i.e. above-mentioned M groups) of device configuration much smaller than transmission equipment actual transmission data Number, the processor 502 of device only needs to carry out channel status letter to the reference signal of this M groups port in so final the present embodiment Breath measurement, with need in the prior art to receiving device need to send equipment actual transmission data when all of the port reference Signal carries out CSI measurements and compares, and substantially reduces the expense of measurement pilot tone, especially with the increase of antenna scale, effectively carries The resource utilization of data transfer high.

Embodiment five

The embodiment of the present invention provides a kind of dispensing device of reference signal, i.e. transmission described in the above embodiments two sets It is standby, as shown in fig. 6, described device includes：Processor 601 and transceiver 602 in bus are connected to,

The processor 601, for configuring N number of reference signal port, N>=6, N number of reference signal port is by M groups Reference signal port constitutes, M>=1；

The transceiver 602, for the reference signal configuration letter of the N song reference signals port of the configuration of transmission processe device 601 Breath, and the N number of reference signal port according to the configuration and the reference signal configuration information, N number of reference letter of send configuration The reference signal of number port；Wherein reference signal configuration information refers to that transmission equipment is sent out on N number of reference signal port of configuration Send the necessary information of reference signal, such as reference signal port number, port numbers, the time-frequency money shared by each reference signal port Source information, and M group reference signals port is the grouping information how to be grouped etc., and receiving device is needed according to the reference signal configuration Information could receive the reference signal of N number of reference signal port.

Wherein, the reference signal of N number of reference signal port of configuration is used for N number of reference signal end of the receiving device to configuration The reference signal of mouth carries out channel condition information CSI measurements, including：Respectively to M groups reference signal port Zhong Meizu ports Reference signal carry out CSI measurements, obtain M the first pre-coding matrix, i.e. W_i, wherein i=1,2 ..., M；According to described first Precoding obtains the second pre-coding matrix W：Channel quality is obtained according to the second pre-coding matrix Indicate CQI.

Further, the transceiver 602 in the present embodiment, be additionally operable to receive the receiving device feedback second is pre- The corresponding precoding matrix indicators PMI of encoder matrix and channel quality indicator (CQI)；Then the processor 601, is additionally operable to basis The corresponding precoding matrix indicators PMI of the second pre-coding matrix and channel quality indicator (CQI) that the transceiver 601 is received enter Row pre-encode operation.

Optionally, the transceiver 602, specifically for the reference signal of N number of reference signal port of the configuration is existed Sent in same subframe.Optionally, the reference signal port number of M groups reference signal port Zhong Meizu ports is main aerial One prime number of port number.

A kind of dispensing device of reference signal provided in an embodiment of the present invention, is carried out using the correlation of CSI measurement pilot tones Design so that the end when port number (i.e. M groups) of the configuration of processor 601 of device is much smaller than actual transmission data in the present embodiment Mouth number, so final receiving device only needs to carry out channel condition information measurement to the reference signal of this M groups port, with existing skill Need to need receiving device in art to carry out CSI measurements to the reference signal for sending all of the port during equipment actual transmission data Compare, substantially reduce the expense of measurement pilot tone, especially with the increase of antenna scale, effectively increase the money of data transfer Source utilization rate.

Embodiment six

The embodiment of the present invention provides a kind of channel state information measurement, and the method in the present embodiment is receiving device institute Another channel state information measurement of execution, as shown in fig. 7, the method includes：

Step C1, receives the ginseng of transmission equipment the reference signal configuration information for sending and the N number of reference signal port for configuring Examine signal.Wherein, the value of N can be less than or equal to main aerial port number.It can be user equipment or base wherein to send equipment The equipment stood etc. for sending signal, and the transmission equipment is corresponding with the receiving device for performing the present embodiment method, such as when Transmission equipment is user equipment, then receiving device is base station, and when the equipment of transmission is base station, then receiving device is user equipment.

Step C2, the reference signal to N number of reference signal port of the configuration carries out channel condition information CSI measurements； Wherein, N number of reference signal port is made up of M group reference signals port, and M>=1.

Wherein, the reference signal of the N number of reference signal port based on the configuration carries out channel condition information CSI measurement tools Body can C21 to C23 as follows, specifically,

Step C21, respectively the reference signal to M groups reference signal port Zhong Meizu ports carry out CSI measurements, obtain The corresponding weighted value in every group of reference signal port, and the first pre-coding matrix and/or second are worth to according to the weighting Pre-coding matrix so that a certain part in the weighted value the first pre-coding matrix of correspondence and/or the second pre-coding matrix. Wherein in the first pre-coding matrix, a phase term is differed between the corresponding weighted value in any two groups of reference signal ports；With/ Or, in the second pre-coding matrix, a phase term is differed between the corresponding weighted value in any two groups of reference signal ports. Wherein, the phase term isForm, whereinIt is an angle between [0,2 π].

Step C22, obtains according to the first pre-coding matrix and/or the second pre-coding matrix that are obtained in above-mentioned steps C21 3rd pre-coding matrix.Specifically, the 3rd pre-coding matrix can be by the first pre-coding matrix and/or the second pre-coding matrix Certain computing is carried out to obtain.

Specifically, when the first pre-coding matrix is worth to according to weighting, it is necessary in the first pre-coding matrix, any two A phase term is differed between the corresponding weighted value in group reference signal port, then to obtain the 3rd according to the first pre-coding matrix pre- During encoder matrix, if final pre-coding matrix is using double codebook structures, can be by the first pre-coding matrix and another precoding Matrix operation (being mainly multiplied) obtains the 3rd pre-coding matrix, wherein another pre-coding matrix can be using third generation cooperation The codebook structure of mesh (3rd Generation Partnership Project, 3GPP) the 8th or 10 versions, such as be multiplexed the 10th A code book in the dicode of version this structure type, the first pre-coding matrix W₁Can be：

OrWherein, W_1i(i=1,2 ... M) for i-th group with reference to letter Number part of the port in the first pre-coding matrix, can include the weighting that examine signal port in the part Value, for adjusting the phase of transmission signal.

Second pre-coding matrix W is being worth to according to weighting₂When, it is necessary in the second pre-coding matrix, any two groups of ginsengs One phase term of difference between the corresponding weighted value of signal port is examined, then the 3rd precoding is being obtained according to the second pre-coding matrix During matrix, if final pre-coding matrix is using double codebook structures, can be by another pre-coding matrix and the second pre-coding matrix W₂Carry out computing (mainly be multiplied) and obtain the 3rd pre-coding matrix, wherein another pre-coding matrix can using 3GPP the 8th or A code book in the codebook structure of 10 versions, such as this structure type of the dicode of the 10th version of multiplexing, wherein, the second precoding Matrix W₂Structure it is similar with the structure of above-mentioned first pre-coding matrix.

First pre-coding matrix W is being worth to according to weighting₁With the second pre-coding matrix W₂When, it is necessary in the second precoding In matrix, a phase term is differed between the corresponding weighted value in any two groups of reference signal ports, and in the first pre-coding matrix In, differ a phase term between the corresponding weighted value in any two groups of reference signal ports.Then according to the first pre-coding matrix When obtaining three pre-coding matrixes with the second pre-coding matrix, if final pre-coding matrix is using double codebook structures, Ke Yiyou First pre-coding matrix W₁With the second pre-coding matrix W₂Carry out computing (being mainly multiplied) and obtain the 3rd pre-coding matrix.

Step C23, channel quality indicator (CQI) is obtained according to the 3rd pre-coding matrix；

Further, in the present embodiment after the 3rd pre-coding matrix is obtained, can also be to above-mentioned transmission equipment feedback the The corresponding precoding matrix indicators PMI of three pre-coding matrixes and channel quality indicator (CQI), to cause transmission equipment according to PMI Pre-encode operation is carried out with CQI.

Optionally, the 3rd precoding is obtained according to the first pre-coding matrix and the second pre-coding matrix in above-mentioned steps C22 During matrix, the 3rd pre-coding matrix can be specifically expressed as：

Wherein, W is the 3rd pre-coding matrix, W₁It is the first pre-coding matrix, W₁In i-th diagonal blocks correspondence i-th group of ginseng The corresponding weighted value of signal port is examined, wherein, the value of i is 1 to M；W₂It is the second pre-coding matrix,It is that the reference of i+1 group is believed The phase difference of number corresponding weighted value in port weighted value corresponding with the 1st group of reference signal port.

Or, optionally, the 3rd is obtained according to the first pre-coding matrix and the second pre-coding matrix in above-mentioned steps C21 During pre-coding matrix, wherein, specifically the 3rd pre-coding matrix is expressed as：

Wherein, W is the 3rd pre-coding matrix, W₁It is the first pre-coding matrix, W₂It is the second pre-coding matrix, W₂In i-th The corresponding weighted value in i-th group of reference signal port of row correspondence, wherein, the value of i is 1 to M；It is i+1 group reference signal end The phase difference of mouthful corresponding weighted value weighted value corresponding with the 1st group of reference signal port.

A kind of channel state information measurement provided in an embodiment of the present invention, the program utilizes CSI measuring reference signals Correlation between port is designed so that the port number (i.e. M groups) for sending device configuration is less than transmission equipment actual transmission number According to when port number, so final receiving device only needs to carry out channel condition information measurement to the reference signal of this M groups port, Need to carry out CSI surveys to the reference signal for sending all of the port during equipment actual transmission data with receiving device in the prior art Amount is compared, and the method in the embodiment of the present invention substantially reduces the expense of measurement pilot tone, especially with the increase of antenna scale, Effectively increase the resource utilization of data transfer.

Embodiment seven

The embodiment of the present invention provides a kind of sending method of reference signal, and the method for the present embodiment is performed by transmission equipment Method, be the method performed by corresponding with receiving device transmission equipment in the methods described of above-described embodiment six, wherein connecing Receiving unit can be the equipment for receiving signal such as user equipment or base station, and the receiving device with perform the present embodiment method Transmission equipment it is corresponding, such as when send equipment be user equipment, then receiving device be base station, when send equipment be base station, Then receiving device is user equipment.

Method flow diagram in the present embodiment is as shown in figure 8, the method includes：

Step D1, configures the reference signal of N number of reference signal port, and N number of reference signal port is by M group port sets Into M>=1；

Step D2, sends the reference signal configuration information of N number of reference signal port of the configuration, and according to the configuration N number of reference signal port and reference signal configuration information, send reference signal, the reference signal is based on for receiving device The reference signal of N number of reference signal port of the configuration carries out channel condition information CSI measurements, obtains according to the first precoding The 3rd pre-coding matrix that matrix and/or the second pre-coding matrix determine, obtains channel quality and refers to according to the 3rd pre-coding matrix Show CQI.Wherein receiving device can be as described in above-mentioned embodiment six, herein not in the process for specifically obtaining the 3rd pre-coding matrix Repeated.

Wherein, the reference signal of N number of reference signal port of the receiving device based on the configuration carries out channel status Information CSI is measured, including：The reference signal to M groups reference signal port Zhong Meizu ports carries out CSI measurements respectively, obtains To the corresponding weighted value in every group of reference signal port, and according to it is described weighting be worth to first pre-coding matrix and/ Or second pre-coding matrix, to cause that the weighted value is a certain in the first pre-coding matrix and/or the second pre-coding matrix Part.

Wherein, in the first pre-coding matrix, the difference one of the corresponding weighted value in any two groups of reference signal ports Individual phase term；And/or, in the second pre-coding matrix, the corresponding weighted value difference one in any two groups of reference signal ports Individual phase term；And the 3rd pre-coding matrix for obtaining can be carried out necessarily by the first pre-coding matrix and the second pre-coding matrix What computing was obtained, it is specifically shown in shown in above-described embodiment six, do not repeated herein.The phase term can beForm, its InIt is an angle between [0,2 π].

It should be noted that the value of above-mentioned N can be less than or equal to main aerial port number.

Further, the transmission equipment of the present embodiment can also receive the 3rd pre-coding matrix of above-mentioned receiving device feedback Corresponding designator PMI and channel quality indicator (CQI)；Pre-encode operation is then carried out according to the PMI and CQI.

A kind of sending method of reference signal provided in an embodiment of the present invention, the program measures the correlation of pilot tone using CSI Property be designed, specifically, can by transmission device configuration M group reference signals port, and receiving device only need to M groups refer to When the reference signal of signal port carries out channel condition information measurement, and M group reference signals port number less than actual transmission data Port number, so with receiving device in the prior art need to send equipment actual transmission data when all of the port reference Signal carries out CSI measurements and compares, and the method in the embodiment of the present invention substantially reduces the expense of measurement pilot tone, especially with day The increase of line gauge mould, effectively increases the resource utilization of data transfer.

Embodiment eight

A kind of channel state information measurement is the embodiment of the invention provides, with the increase of antenna scale, antenna number The increase of amount, the correlation in array between all antennas, the correlation that can be split into multiple antenna sets is indicated, i.e., each Correlation between antenna sets constitutes the correlation between the antenna of whole aerial array.Whole aerial array is divided as shown in Figure 9 Into 4 equal antenna sets (group) 1 to 4.

In the prior art, corresponding PMI information is obtained with the CSI measurements of all antenna ports of array.So as to work as antenna Measuring reference signals expense required when larger will be very huge.

With the increase of antenna scale, the correlation between each antenna further becomes big.The first two antenna sets 1 as shown in Figure 10 The precoding matrix indicators of the group Wy constituted with the precoding matrix indicators and latter two antenna sets 3 and 4 of the group Wx of 2 compositions Between be common phase position (Co-phasing) W.

Using the correlation between each antenna sets, do the antenna sets measurement of domain of dependence difference, i.e., first and obtain precoding instruction After symbol PMI, second adjacent antenna sets are only needed to measure and obtain itself and first phase information of antenna sets, due to simply surveying Measure phase information without measure again obtain with first antenna sets identical precoding matrix indicators PMI so that The expense of the measurement pilot tone needed for can greatly reducing.Specifically：

As shown in figure 11 (it is assumed herein that phase information is reflected in W₁In), it is to be understood that for base station or use Determine that phase information is reflected in the first pre-coding matrix by the method for predetermined method or high-rise configuration in the equipment of family, or instead Reflect in the second pre-coding matrix.PMIs of second group 2 of the PMI with first group 1 differs a phase Offset, the 3rd group 3 of PMI PMI with second group 2 differs a phase Offset.And the phase Offset between the PMI of each group can be reflected in W₁In.

Be grouped for all of reference signal antenna port in array by scheme provided in an embodiment of the present invention, the survey of difference group Amount reference signal port completes different precoding matrix indicators measurements.

As first group of 1 measuring reference signals port be used for measuring obtain first group of 1 antenna port for including corresponding to it is pre- Encoder matrix designator.

And second group of 1 measuring reference signals port is used for measuring obtaining pre- corresponding to second group of 2 antenna port for including The phase difference of the precoding designator corresponding to coded indicator and first group of 1 antenna port for including.

3rd group of 3 measuring reference signals port is used for measuring obtaining prelisting corresponding to the 3rd group of 3 antenna port for including The phase difference of the precoding designator corresponding to code designator and second group of 2 antenna port for including, by that analogy.

Wherein, first group of 1 measuring reference signals port can be all antenna ports in Group1 in Figure 11, and second 2 reference signal ports of group can be by i-th antenna port in i-th antenna port and Group 2 in Group1 in Figure 11 Composition, wherein, i=1 ..., N_group1, the N_group1It is the antenna port number in Group1.3rd group of 3 reference signal port can be with It is made up of i-th antenna port in i-th antenna port and Group 3 in upper figure Group2, wherein, i=1 ..., N_group2, the N_group3It is the antenna port number in Group3.

It is assumed that whole aerial array is divided into M groups, then the first pre-coding matrix of whole aerial array is to be constituted by N number of piece Block diagonal matrix.The pre-coding matrix that first group of 1 reference signal port measurement is obtained is the first precoding of whole aerial array Matrix W₁The 1st block, be designated asPhase information of other groups relative to first group 1 in addition to first group 1 is respectivelyTherefore the pre-coding matrix of other groups corresponds to the first pre-coding matrix W of whole aerial array respectively₁I-th Individual block (i=2 ..., M), it is designated asThe whole aerial array that above-mentioned measuring reference signals measurement is obtained Pre-coding matrix structure can be expressed as follows：

Embodiment nine

A kind of channel state information measurement is the embodiment of the invention provides, as the change of antenna scale is big, antenna number The increase of amount, the correlation in array between all antennas can be split into the correlation of multiple antenna sets to represent, i.e. each day Correlation between line group constitutes the correlation between the antenna of whole aerial array.Whole aerial array is divided into equal 4 Antenna sets can be as shown in Figure 9 above.

In the prior art, corresponding PMI information, same day line gauge mould are obtained with the CSI measurements of all antenna ports of array Measuring reference signals expense required when larger will be very huge.

With the increase of antenna scale, the correlation between each antenna further becomes big.The first two antenna sets 1 and 2 prelist The precoding matrix indicators of code Matrix Indicator and latter two antenna sets 3 and 4 are common phase positions, can be such as above-mentioned Figure 10 institutes Show.

Using the correlation between each antenna sets, domain of dependence difference is done, domain of dependence difference is using each antenna port group correspondence The correlation of pre-coding matrix carry out difference, it can be understood as, first antenna port group measurement obtains corresponding precoding After the information of designator PMI, second adjacent antenna port group measurement obtains it with first phase difference of antenna port group Information, due to being that measurement obtains phase information and obtained and first antenna port group identical precoding without measuring again The information of Matrix Indicator PMI, so that the expense of the measurement pilot tone needed for can greatly reducing.Specifically,

As shown in figure 12 (it is assumed herein that phase information is reflected in W₂In), second group PMI and first of antenna port group The PMI of antenna port differs a phase Offset, and the PMI of the 3rd group of antenna port is differed with the PMI of second group of antenna port One phase Offset.And the phase Offset between the PMI of each group antenna port can be by W₂To reflect.

Be grouped for all antenna ports in array by scheme provided in an embodiment of the present invention, the reference signal port of difference group Different precoding matrix indicators measurements are completed, specific measurement is similar with the measurement of the China of above-described embodiment eight, does not enter herein Row is repeated.

It is assumed that whole aerial array is divided into M groups, then the second pre-coding matrix of whole aerial array is by N number of matrix-block The column vector of composition.The pre-coding matrix that first group of 1 reference signal port measurement is obtained is the second of whole aerial array to prelist Code matrix W₂The first row element, be designated as Y₁, phase information of other groups relative to first group 1 in addition to first group 1 be respectivelyTherefore the pre-coding matrix of other groups corresponds to the second pre-coding matrix W of whole aerial array respectively₂I-th Row (i=2 ..., M), it is designated asThe whole aerial array that above-mentioned measuring reference signals port obtains it is pre- Encoder matrix structure can be expressed as follows：

The scheme that above-described embodiment six, seven is provided is summarized, is that CSI is carried out according to N number of measuring reference signals port of configuration Measurement, the precoding matrix indicators measured in the CSI information for obtaining are made up of following M part,

The M part includes the first pre-coding matrix W₁, first phase information, second phase information is until M-1 phases Position information.First pre-coding matrix can be long-term broadband precoding Matrix Indicator, or in short term/subband pre-coding matrix Designator；

Final pre-coding matrix can be：

Or：

Embodiment ten

The embodiment of the present invention provides a kind of channel condition information measurement apparatus, i.e. reception described in above-described embodiment six sets Standby, as shown in figure 13, described device includes：It is connected to transceiver 131 and processor 132 in bus；

The transceiver 131, for receiving the reference signal configuration information of transmission equipment transmission and N number of reference letter of configuration The reference signal of number port；Wherein, the value of N can be less than or equal to main aerial port number.

The processor 132, the reference for N number of reference signal port of the configuration received to the transceiver 131 is believed Number carry out channel condition information CSI measurements；Wherein, N number of reference signal port is made up of M group reference signals port, and M> =1.

Wherein, reference signal of the processor 132 in the N number of reference signal port based on the configuration carries out channel status letter When breath CSI is measured, specifically：The reference signal to M groups reference signal port Zhong Meizu ports carries out CSI measurements respectively, Obtain the corresponding weighted value in every group of reference signal port, and according to the weighting be worth to the first pre-coding matrix and/or Second pre-coding matrix so that a certain composition in the weighted value the first pre-coding matrix of correspondence and/or the second pre-coding matrix Part；3rd pre-coding matrix is obtained according to the first pre-coding matrix and/or the second pre-coding matrix；According to the 3rd precoding square Battle array obtains channel quality indicator (CQI).Wherein processor 132 can be real as described above in the process for specifically obtaining the 3rd pre-coding matrix Apply described in example six, do not repeated herein.

Wherein, in the first pre-coding matrix, one is differed between the corresponding weighted value in any two groups of reference signal ports Phase term；And/or, in the second pre-coding matrix, differed between the corresponding weighted value in any two groups of reference signal ports One phase term, phase term described here can beForm, whereinCan be an angle and the place between [0,2 π] Reason device 132 can be carried out certain when three pre-coding matrixes is obtained by the first pre-coding matrix and the second pre-coding matrix Computing is obtained, and the 3rd pre-coding matrix for obtaining can not repeated herein as described in above-mentioned embodiment six.

Further, in other specific embodiments, transceiver 131 can be also used for above-mentioned transmission equipment feedback the The corresponding precoding matrix indicators PMI of three pre-coding matrixes and channel quality indicator (CQI), to cause transmission equipment according to PMI Pre-encode operation is carried out with CQI.

A kind of channel condition information measurement apparatus provided in an embodiment of the present invention, using between CSI measuring reference signals port Correlation be designed so that send device configuration port number be less than transmission equipment actual transmission data when port number, The processor 132 of device only needs to organize port to this M (the far smaller than port numbers of actual transmission data) in this sample embodiment Reference signal carry out channel condition information measurement, with receiving device in the prior art need to send equipment actual transmission data When the reference signal of all of the port carry out CSI measurements and compare, substantially reduce the expense of measurement reference port, especially with The increase of antenna scale, effectively increases the resource utilization of data transfer.

Embodiment 11

The embodiment of the present invention provides a kind of dispensing device of reference signal, i.e. transmission described in above-described embodiment seven sets Standby, as shown in figure 14, described device includes：Transceiver 141 and processor 142 in bus are connected to,

The processor 142, the reference signal for configuring N number of reference signal port, N>=6, N number of reference signal Port is made up of M group reference signals port, M>=1；

The transceiver 141, matches somebody with somebody for sending the reference signal of N number of reference signal port of the configuration of the processor 142 Confidence ceases, and according to N number of reference signal port of the configuration and reference signal configuration information, sends reference signal, the ginseng The reference signal for examining N number of reference signal port that signal is based on the configuration for receiving device carries out channel condition information CSI Measurement, obtains the 3rd pre-coding matrix determined according to the first pre-coding matrix and/or the second pre-coding matrix, pre- according to the 3rd Encoder matrix obtains channel quality indicator (CQI).Wherein the 3rd pre-coding matrix can be as shown in above-mentioned embodiment seven, herein not Repeated.

Wherein, the reference signal of N number of reference signal port of the receiving device based on the configuration carries out channel status Information CSI is measured, including：The reference signal to M groups reference signal port Zhong Meizu ports carries out CSI measurements respectively, obtains To the corresponding weighted value in every group of reference signal port, and according to it is described weighting be worth to first pre-coding matrix and/ Or second pre-coding matrix, to cause that the weighted value is a certain in the first pre-coding matrix and/or the second pre-coding matrix Part.Wherein receiving device specifically obtain the 3rd pre-coding matrix process can as described in above-mentioned embodiment six, This is not repeated.

Wherein, in the first pre-coding matrix, the difference one of the corresponding weighted value in any two groups of reference signal ports Individual phase term；And/or, in the second pre-coding matrix, the corresponding weighted value difference one in any two groups of reference signal ports Individual phase term；And the 3rd pre-coding matrix for obtaining can be carried out necessarily by the first pre-coding matrix and the second pre-coding matrix What computing was obtained, it is specifically shown in shown in above-described embodiment six, do not repeated herein.Phase term described here can beShape Formula, whereinIt can be an angle between [0,2 π].

Further, the transceiver 141 of the present embodiment, is additionally operable to receive the 3rd precoding square of above-mentioned receiving device feedback The corresponding designator PMI of battle array and channel quality indicator (CQI)；Then processor 142, are additionally operable to the PMI received according to transceiver 141 Pre-encode operation is carried out with CQI.

A kind of dispensing device of reference signal provided in an embodiment of the present invention, the program measures the correlation of pilot tone using CSI Property is designed, and specifically, can configure M groups port by processor 142, and receiving device only needs to the reference to M groups port Port number when signal carries out channel condition information measurement, and the port number of M group reference signals less than actual transmission data, so Need to carry out CSI surveys to the reference signal for sending all of the port during equipment actual transmission data with receiving device in the prior art Amount is compared, and substantially reduces the expense of measurement pilot tone, especially with the increase of antenna scale, effectively increases data transfer Resource utilization.

One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is can Completed with instructing the hardware of correlation by program, the program can be stored in a computer-readable recording medium, storage Medium can include：ROM, RAM, disk or CD etc..

A kind of measurement of channel condition information, the sending method of reference signal and the dress for being provided the embodiment of the present invention above Put, be described in detail, specific case used herein is set forth to principle of the invention and implementation method, the above The explanation of embodiment is only intended to help and understands the method for the present invention and its core concept；Simultaneously for the general skill of this area Art personnel, according to thought of the invention, will change in specific embodiments and applications, in sum, this Description should not be construed as limiting the invention.

Claims

1. a kind of channel state information measurement, it is characterised in that methods described includes：

The reference signal of the N number of reference signal port based on the configuration carries out channel condition information CSI measurements, wherein, N>= 6, N number of reference signal port is made up of M group reference signals port, M>=1；

Wherein, the reference signal of the N number of reference signal port based on configuration carries out channel condition information CSI measurements, including： The reference signal to M groups reference signal port Zhong Meizu ports carries out CSI measurements respectively, obtains M the first precoding square Battle array, i.e. W_i, wherein i=1,2 ..., M；Second pre-coding matrix W is obtained according to first pre-coding matrix：Channel quality indicator (CQI) is obtained according to second pre-coding matrix.

2. the method for claim 1, it is characterised in that methods described also includes：

The corresponding precoding matrix indicators PMI of the second pre-coding matrix and the channel matter are fed back to the transmission equipment Amount instruction CQI.

3. method according to claim 1, it is characterised in that

4. the method according to any one of claims 1 to 3, it is characterised in that

The reference signal port number of M groups reference signal port Zhong Meizu ports is a prime number of main aerial port number.

5. a kind of sending method of reference signal, it is characterised in that methods described includes：

Configure N number of reference signal port, N>=6, N number of reference signal port is made up of M group reference signals port, M>=1；

N number of reference signal port and the reference signal configuration information according to the configuration, send N number of reference of the configuration The reference signal of signal port；

Wherein, the reference signal of N number of reference signal port of the configuration is used for receiving device to the N number of with reference to letter of the configuration The reference signal of number port carries out channel condition information CSI measurements, including：Respectively to every group in the M groups reference signal port The reference signal of port carries out CSI measurements, obtains M the first pre-coding matrix, i.e. W_i, wherein i=1,2 ..., M；According to described First pre-coding matrix obtains the second pre-coding matrix W：According to second pre-coding matrix Obtain channel quality indicator (CQI).

6. method as claimed in claim 5, it is characterised in that methods described also includes：

Receive the corresponding precoding matrix indicators PMI of second pre-coding matrix and the letter of the receiving device feedback Road quality indicator (CQI), and pre-encode operation is carried out according to the PMI and CQI.

7. method according to claim 5, it is characterised in that

8. the method according to any one of claim 5 to 7, it is characterised in that

9. a kind of channel condition information measurement apparatus, it is characterised in that described device includes：It is connected respectively to the transmitting-receiving in bus Device and processor；

The transceiver, for receiving the reference signal configuration information of transmission equipment transmission and N number of reference signal port of configuration Reference signal；

The processor, the reference signal for N number of reference signal port of the configuration received based on the transceiver carries out letter Channel state information CSI is measured, wherein, N>=6, N number of reference signal port is made up of M group reference signals port, M>=1；

10. device as claimed in claim 9, it is characterised in that

The transceiver, is additionally operable to feed back the corresponding pre-coding matrix instruction of second pre-coding matrix to the transmission equipment Symbol PMI and channel quality indicator (CQI).

11. devices according to claim 9, it is characterised in that the transceiver, are additionally operable to receive the transmission equipment same The reference signal of N number of reference signal port of the configuration sent in one subframe.

12. according to claim 9 to 11 any one described device, it is characterised in that every group of end in the M groups reference signal port The reference signal port number of mouth is a prime number of main aerial port number.

13. a kind of dispensing devices of reference signal, it is characterised in that described device includes：It is connected respectively to the treatment in bus Device and transceiver,

The processor, for configuring N number of reference signal port, N>=6, N number of reference signal port is by M group reference signals Port constitutes, M>=1；

The transceiver, the reference signal configuration information of the N number of reference signal port for sending the processor configuration, according to N number of reference signal port of the configuration and the reference signal configuration information, send N number of reference signal port of the configuration Reference signal；Wherein, the reference signal of N number of reference signal port of configuration is used for N number of ginseng of the receiving device to the configuration Examining the reference signal of signal port carries out channel condition information CSI measurements, including：Respectively in the M groups reference signal port Every group of reference signal of port carries out CSI measurements, obtains M the first pre-coding matrix, i.e. W_i, wherein i=1,2 ..., M；According to First pre-coding matrix obtains the second pre-coding matrix W：According to second precoding Matrix obtains channel quality indicator (CQI).

14. devices as claimed in claim 13, it is characterised in that

The transceiver, is additionally operable to receive the corresponding pre-coding matrix of second pre-coding matrix of the receiving device feedback Designator PMI and channel quality indicator (CQI)；

The processor, the corresponding pre-coding matrix of second pre-coding matrix for being additionally operable to be received according to the transceiver refers to Show that symbol PMI and channel quality indicator (CQI) carry out pre-encode operation.

15. according to claim 13 described device, it is characterised in that the transceiver, specifically for by N number of ginseng of the configuration The reference signal for examining signal port sends in same subframe.

16. according to claim 13 to 15 any one described device, it is characterised in that

Reference signal port number in the Zhong Meizu ports of the M groups reference signal port is a prime number of main aerial port number.

17. a kind of channel state information measurements, it is characterised in that methods described includes：

Reference signal to N number of reference signal port of the configuration carries out channel condition information CSI measurements；Wherein, it is described N number of Reference signal port is made up of M group reference signals port, and M>=1；

Wherein, the reference signal of the N number of reference signal port based on the configuration carries out channel condition information measurement, including：Point The other reference signal to M groups reference signal port Zhong Meizu ports carries out CSI measurements, obtains every group of reference signal end The corresponding weighted value of mouth, and the first pre-coding matrix and/or the second pre-coding matrix are worth to according to the weighting；According to described First pre-coding matrix and/or the second pre-coding matrix obtain the 3rd pre-coding matrix；Obtained according to the 3rd pre-coding matrix To channel quality indicator (CQI)；

Wherein, in first pre-coding matrix, one is differed between the corresponding weighted value in any two groups of reference signal ports Phase term；And/or in second pre-coding matrix, phase between the corresponding weighted value in any two groups of reference signal ports Differ from a phase term.

18. methods as claimed in claim 17, it is characterised in that methods described also includes：

The corresponding precoding matrix indicators PMI of the 3rd pre-coding matrix is fed back to the transmission equipment and channel quality refers to Show CQI.

19. methods according to claim 17, it is characterised in that

The N is less than or equal to main aerial port number.

20. method according to any one of claim 17 to 19, it is characterised in that the phase term isForm, its InIt is an angle between [0,2 π].

21. methods according to claim 20, it is characterised in that described pre- according to first pre-coding matrix and second Encoder matrix obtains the 3rd pre-coding matrix, including：

3rd pre-coding matrix is expressed as：

Wherein, W is the 3rd pre-coding matrix, W₁It is first pre-coding matrix, W₁In i-th diagonal blocks correspondence i-th The corresponding weighted value in group reference signal port, wherein, the value of i is 1 to M；W₂It is second pre-coding matrix,It is i+1 The phase difference of the corresponding weighted value in group reference signal port weighted value corresponding with the 1st group of reference signal port, X₁It is W₁In first The corresponding weighted value in group reference signal port.

22. methods according to claim 20, it is characterised in that

It is described that 3rd pre-coding matrix is obtained according to first pre-coding matrix and the second pre-coding matrix, including：Will be described 3rd pre-coding matrix is expressed as：

Wherein, W is the 3rd pre-coding matrix, W₁It is first pre-coding matrix, W₂It is second pre-coding matrix, W₂In the corresponding weighted value in i-th group of reference signal port of the i-th row correspondence, wherein, the value of i is 1 to M；For i+1 group is joined Examine the phase difference of the corresponding weighted value of signal port weighted value corresponding with the 1st group of reference signal port, Y₁It is W₂In first group of ginseng Examine the corresponding weighted value of signal port.

23. a kind of sending methods of reference signal, it is characterised in that methods described includes：

Configure the reference signal of N number of reference signal port, N>=6, N number of reference signal port is by M group reference signals port Composition, M>=1；

The reference signal configuration information of N number of reference signal port of the configuration is sent, and according to the N number of with reference to letter of the configuration Number port and the reference signal configuration information, send reference signal；

The reference signal that the reference signal is used for N number of reference signal port that receiving device is based on the configuration carries out channel shape State information CSI is measured, and obtains the 3rd pre-coding matrix determined according to the first pre-coding matrix and/or the second pre-coding matrix, Channel quality indicator (CQI) is obtained according to the 3rd pre-coding matrix；

Wherein, the reference signal of N number of reference signal port of the receiving device based on the configuration carries out channel condition information CSI is measured, including：The reference signal to M groups reference signal port Zhong Meizu ports carries out CSI measurements respectively, obtains institute State the corresponding weighted value in every group of reference signal port, and first pre-coding matrix and/or the are worth to according to the weighting Two pre-coding matrixes；

Wherein, in first pre-coding matrix, the corresponding weighted value in any two groups of reference signal ports differs one Phase term；And/or in second pre-coding matrix, the corresponding weighted value difference one in any two groups of reference signal ports Individual phase term.

24. methods as claimed in claim 23, it is characterised in that methods described also includes：

Receive the corresponding precoding matrix indicators PMI of the 3rd pre-coding matrix and channel matter of the receiving device feedback Amount instruction CQI, and pre-encode operation is carried out according to the PMI and CQI.

25. methods according to claim 23, it is characterised in that

The N is less than or equal to main aerial port number.

26. methods according to claim 25, it is characterised in that the phase term isForm, whereinIt is [0,2 π] between an angle.

27. method according to any one of claim 23~26, it is characterised in that

3rd pre-coding matrix is expressed as：

28. method according to any one of claim 23~26, it is characterised in that

3rd pre-coding matrix is expressed as：

29. a kind of channel condition information measurement apparatus, it is characterised in that described device includes：It is connected to the receipts in bus Hair device and processor；

The processor, the reference signal for N number of reference signal port of the configuration received to the transceiver carries out channel Status information CSI is measured；Wherein, N number of reference signal port is made up of M group reference signals port, and M>=1；

Wherein, in first pre-coding matrix, one is differed between the corresponding weighted value in any two groups of reference signal ports Phase term；And/or, in second pre-coding matrix, between the corresponding weighted value in any two groups of reference signal ports One phase term of difference.

30. according to claim 29 described device, it is characterised in that

The transceiver, is additionally operable to feed back the 3rd pre-coding matrix that the processor obtains to the transmission equipment corresponding pre- Encoder matrix designator PMI and channel quality indicator (CQI).

31. according to claim 29 described device, it is characterised in that

The N is less than or equal to main aerial port number.

32. according to claim 29 to 31 any one described device, it is characterised in that the phase term isForm, whereinIt is an angle between [0,2 π].

33. according to claim 29 to 31 any one described device, it is characterised in that

The processor is specifically for the 3rd pre-coding matrix is expressed as：

34. according to claim 29 to 31 any one described device, it is characterised in that

The processor is specifically for the 3rd pre-coding matrix is expressed as：

35. a kind of dispensing devices of reference signal, it is characterised in that described device includes：It is connected to the transceiver of bus And processor,

The processor, the reference signal for configuring N number of reference signal port, N>=6, N number of reference signal port is by M Group reference signal port composition, M>=1；

The transceiver, the reference signal configuration information of the N number of reference signal for sending the processor configuration, and according to institute N number of reference signal port of configuration and the reference signal configuration information are stated, reference signal is sent；

Wherein, in the first pre-coding matrix, one phase of any corresponding weighted value difference in two groups of reference signal ports ；And/or, in the second pre-coding matrix, one phase of any corresponding weighted value difference in two groups of reference signal ports .

36. devices as claimed in claim 35, it is characterised in that

The transceiver, is additionally operable to receive the corresponding pre-coding matrix of the 3rd pre-coding matrix of the receiving device feedback Designator PMI and channel quality indicator (CQI)；

37. according to claim 35 described device, it is characterised in that

The N is less than or equal to main aerial port number.

38. according to claim 36 to 37 any one described device, it is characterised in that the phase term isForm, whereinIt is an angle between [0,2 π].

39. according to claim 38 described device, it is characterised in that

3rd pre-coding matrix is expressed as：

Wherein, W is the 3rd pre-coding matrix, W₁It is first pre-coding matrix, W₁In i-th diagonal blocks correspondence i-th Reference signal port is organized in corresponding weighted value, wherein, the value of i is 1 to M；W₂It is second pre-coding matrix,It is The phase difference of the corresponding weighted value in i+1 group reference signals port weighted value corresponding with the 1st group of reference signal port, X₁It is W₁In The corresponding weighted value in first group of reference signal port.

40. according to claim 38 described device, it is characterised in that

3rd pre-coding matrix is expressed as：