CN107623561A

CN107623561A - A kind of information transferring method and base station

Info

Publication number: CN107623561A
Application number: CN201610551884.9A
Authority: CN
Inventors: 王飞; 童辉; 吴丹
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Co Ltd
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Co Ltd
Priority date: 2016-07-13
Filing date: 2016-07-13
Publication date: 2018-01-23
Anticipated expiration: 2036-07-13
Also published as: WO2018010676A1; CN107623561B

Abstract

The invention discloses a kind of information transferring method and base station, wherein method includes：Obtain the topological structure of P antenna port；Wherein, P is the integer more than or equal to 1；Based on the topological structure of the P antenna port, selection obtains M aggregate resource；Wherein, the aggregate resource is made up of the CSI RS resources comprising at least one antenna port；At least part antenna port is used to transmit CSI RS in the M aggregate resource, and the quantity sum of the antenna port for transmitting CSI RS is less than P；M is the integer more than or equal to 1；CSI RS transmission is carried out by the M aggregate resource.

Description

A kind of information transferring method and base station

Technical field

The present invention relates to the transmission resource management technology in the communications field, more particularly to a kind of information transferring method and base Stand.

Background technology

At present, according to the channel condition information reference symbol (CSI-RS) of use and channel condition information (CSI) feedback side The difference of formula, R13/R14 FD-MIMO transmission plans can be divided into 3 major classes：

First, non-precoded (NP, Non-precoded) CSI-RS schemes, R13 support maximum 16-port CSI-RS at present, For more than 16 ports, the problem of overload is serious in NP CSI-RS schemes, and also CSI-RS covering performance may nothing Method ensures；

2nd, wave beam forming (BF, Beam formed) CSI-RS schemes, are specifically divided into cell-specific BF CSI-RS With UE-specific BF CSI-RS；Scheme FDD and TDD based on cell-specific BF CSI-RS can be used, but It is that CSI-RS expenses are also bigger in order to ensure performance, close to the expense for even more than directly using NP CSI-RS.Based on UE- Specific BF CSI-RS scheme is more suitable for TDD, because TDD base stations can be based on channel reciprocity and form BF CSI- RS, but FDD can not more accurately channel information

3rd, the CSI-RS schemes of mixed type, the CSI feedback of the program can be divided into two stages：Stage one is sent out for base station Send macrocyclic NP CSI-RS, the long-term channel directional information of UE feedbacks；Stage two is the long-term channel that base station is fed back according to UE Directional information forms BF CSI-RS, and UE is measured and fed back short-term channel condition information, can in the channel condition information of feedback The instruction of pre-coding matrix instruction (PMI, Precoding Matrix Indicator)/channel quality (CQI, Channel can be included Quality Indicator)/order instruction (RI, Rank Indication) etc..

No matter as can be seen that carrying out CSI-RS transmission using that method in the prior art, transmission is likely to occur The problem of CSI-RS expense is larger.

The content of the invention

In view of this, it is an object of the invention to provide a kind of information transferring method and base station, can at least solve existing skill Above mentioned problem present in art.

To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：

The embodiments of the invention provide a kind of information transferring method, methods described includes：

Obtain the topological structure of P antenna port；Wherein, P is the integer more than or equal to 1；

Based on the topological structure of the P antenna port, selection obtains M aggregate resource；Wherein, the aggregate resource by CSI-RS for mapping at least one antenna port forms；Whole aggregate resources are mapped in the M aggregate resource The quantity sums of whole antenna ports be less than P；M is the integer more than or equal to 1；

CSI-RS transmission is carried out by the M aggregate resource.

The embodiment of the present invention additionally provides a kind of base station, and the base station includes：

Information acquisition unit, for obtaining the topological structure of P antenna port；Wherein, P is the integer more than or equal to 1；

Resource chooses unit, and for the topological structure based on the P antenna port, selection obtains M aggregate resource；Its In, the aggregate resource is made up of the CSI-RS for mapping at least one antenna port；It is complete in the M aggregate resource The quantity sum for whole antenna ports that portion's aggregate resource is mapped is less than P；M is the integer more than or equal to 1；

Transmission unit, for carrying out CSI-RS transmission by the M aggregate resource.

A kind of information transferring method provided in an embodiment of the present invention and base station, it becomes possible to getting P antenna port After topological structure, CSI-RS resource impact is only carried out to some antennas port in P antenna port.In this way, still protecting On the basis of card can get corresponding CSI information, CSI-RS transport overhead can be reduced.

Brief description of the drawings

Fig. 1 is information transferring method schematic flow sheet of the embodiment of the present invention；

Fig. 2 is base station and UE sides CSI handling process schematic diagrames；

Fig. 3 is the schematic diagram one that the embodiment of the present invention chooses antenna port；

Fig. 4-1 is the schematic diagram two that the embodiment of the present invention chooses antenna port；

Fig. 4-2 is the schematic diagram three that the embodiment of the present invention chooses antenna port；

Fig. 4-3 is the schematic diagram four that the embodiment of the present invention chooses antenna port；

Fig. 4-4 is the schematic diagram five that the embodiment of the present invention chooses antenna port；

Fig. 5 is the topological structure of 20 terminal port antennaes；

Fig. 6 is the topological structure of 28 terminal port antennaes；

Fig. 7 is code book schematic diagram of the embodiment of the present invention；

Fig. 8 is that base station of the embodiment of the present invention forms structural representation.

Embodiment

Below in conjunction with the accompanying drawings and specific embodiment the present invention is further described in more detail.

Embodiment one,

The embodiments of the invention provide a kind of information transferring method, as shown in figure 1, including：

Step 101：Obtain the topological structure of P antenna port；Wherein, P is the integer more than or equal to 1；

Step 102：Based on the topological structure of the P antenna port, selection obtains M aggregate resource；Wherein, it is described poly- Joint source is made up of the CSI-RS comprising at least one antenna port；At least part antenna end in the M aggregate resource Mouth is used to transmit CSI-RS, and the quantity sum of the antenna port for transmitting CSI-RS is less than P；M is whole more than or equal to 1 Number；

Step 103：CSI-RS transmission is carried out by the M aggregate resource.

The present embodiment is applied to base station side.FD-MIMO needs to support { 20,24,28,32 } CSI-RS antenna ends in R14 Mouthful.In the scheme based on mixing CSI-RS, Fig. 2 is may refer to, in the first phase, NP CSI-RS main purposes are to allow base Stand and obtain UE CSI information；In second stage, the information such as wave beam forming and port is sent by CSI-RS, receives end The short-term CSI feedback information that end equipment is sent, can include pre-coding matrix instruction (PMI, Precoding in CSI information Matrix Indicator)/channel quality instruction (CQI, Channel Quality Indicator)/order instruction (RI, Rank Indication)。

Specifically, the scheme that the present embodiment provides, for P antenna port (port) non-precoded (non- Precoded CSI-RS (wherein P={ 20,24,28,32 }))；Wherein, the topological structure of P antenna port can be comprising There is the two dimensional topology of P antenna port.

The topological structure for obtaining P antenna port, including：Get the antenna port for including two kinds of polarised directions Topological structure, include N1 row N2 row antenna ports in the antenna port of each polarised direction；Wherein, N1 and N2 are equal For the integer more than 1.

Include the antenna port of two kinds of polarization in P antenna port, the antenna port of each polarization can represent For (N1, N2), wherein N1 represents the port numbers of the identical polarization of the first dimension, and N2 represents the port numbers of the identical polarization of the second dimension, total end Mouth number P=2*N1*N2.Wherein, first dimension can be horizontal dimension；Second dimension can be vertical dimension.

The non-precoded CSI- of P antenna port is represented by polymerizeing M aggregate resource, that is, M CSI-RS Include Ki port in i-th of aggregate resource in RS, wherein m-th aggregate resource, wherein i is integer, 1=<i<=M；

It is to be appreciated that can there was only section ports and some port in foregoing P port in above-mentioned Ki port One-to-one relationship (i.e. there can be part not to be used for CSI measurement in Ki port) be present.

The quantity sum for whole antenna ports that whole aggregate resources are supported is less than P in the M aggregate resource, that is, It can be represented with below equation：K1+K2+…+KM<P.

CSI-RS resource include Ki (Ki values are { 2,4,8 })

Pass through foregoing description, it can be seen that the CSI acquisition of information of terminal device feedback is to PMI due to need not be very smart Really, so CSI-RS need not can be corresponded to whole ports, in order to obtain the letter of the horizontal peacekeeping vertical dimensions of UE respectively Breath, the CSI-RS mapping of section ports (partial-port) can be used (for example, sending 2 NP CSI-RSs Resources, certain a line of difference respective antenna array and a certain row), it is contemplated that only need to obtain CSI information, can only select The antenna for selecting one of polarised direction sends CSI-RS, as shown in figure 3, such CSI-RS sending methods help to reduce CSI-RS expenses.

Below, the specific processing mode as M=2 is provided with reference to such scheme, the present embodiment：

The selection obtains M aggregate resource, including：

Choose the CSI-RS comprising the first quantity antenna port and include the second number as the first aggregate resource, selection The CSI-RS of amount antenna port is as the second aggregate resource；

Wherein, first quantity and the second quantity are identical or different and first quantity and the second quantity are equal For two integral multiple.

By foregoing description it can be seen that M can represent P-port using value as 2 by polymerizeing 2 CSI-RSs Non-precoded CSI-RS, this 2 CSI-RSs can be expressed as { K1, K2 }, i.e. first CSI-RS resource For K1-port CSI-RS resource, second CSI-RS resource is K2-port CSI-RS resource.

Specifically, first quantity and the second quantity are one below：2nd, four, eight.That is, K1 and K2 can The value of energy is { 2,4,8 }.

The first scene,

The topological structure of the P antenna port is 20 antenna ports, and N1 is equal to five, N2 and is equal to two；

Accordingly, the selection obtains M aggregate resource, including：

Choose the CSI-RS comprising four antenna ports and include two antenna ports as the first aggregate resource, selection CSI-RS as the second aggregate resource；

A line is chosen from two row antenna ports, the antenna end of the identical polarised direction of five included from a line of selection Chosen in mouthful and obtain four first antenna ports and second antenna port in addition to four first antenna ports, will Four first antenna ports are corresponding with first aggregate resource；By in one second antenna port column Two same polarization antenna ports are corresponding with second aggregate resource

Or

Choose the CSI-RS comprising two antenna ports and include four antenna ports as the first aggregate resource, selection CSI-RS as the second aggregate resource；

A line is chosen from two row antenna ports, is chosen in five included from a line of selection same polarization antenna port Four first antenna ports and second antenna port in addition to four first antenna ports are obtained, by described four First antenna port is corresponding with second aggregate resource；By two homopolarities in one second antenna port column It is corresponding with first aggregate resource to change antenna port.

Methods described also includes：According to antenna port corresponding to each CSI-RS in the M aggregate resource Numbering generation notice signaling；The notice signaling is sent to terminal device.It is its corresponding, it is described to be provided by described M polymerization After source carries out CSI-RS transmission, methods described also includes：At least receive the channel condition information that terminal device reports；Its In, being comprised at least in the channel condition information has pre-coding matrix instruction.

Referring to Fig. 4-1, wherein, the topological structure of antenna port is that each polarised direction is { N1, N2 }={ 5,2 }；Will First dimension is as the level dimension in topological structure, and using the second dimension as the vertical dimension in topological structure, i.e. topological structure is 2 rows 5 The two dimensional topology of row, in this case, it is, when N1 is more than N2, an array antenna port is chosen from N1 row, from The first quantity antenna terminal mapping is chosen to first aggregate resource in the row chosen；A line antenna is chosen from N2 rows Port, second quantity antenna terminal mapping the second aggregate resource of value is chosen from a line antenna port of selection.

Can be using value as { 4,2 } referring to Fig. 4-1 { K1, K2 }, K1 and K2 are respectively the first quantity and the second quantity.Its In, 4-port CSI-RS resource are same corresponding to any 4 in 5 same polarization port of any a line in topological structure Polarize port, for 2 same polarization port in remaining 1 same polarization port column of the row, with 2-port CSI-RS Resource is corresponding.

Specifically, base station sends the notice signaling to terminal device, can use by the way of giving tacit consent to, or implicit letter Order, or explicit signaling.Specifically, the antenna end according to corresponding to each CSI-RS in the M aggregate resource The numbering of mouth generates notice signaling：By 4 port and 2-port CSI-RS in 4-port CSI-RS resource Which 1 port in resource joins together to correspond to 5 same polarization port of 20-port topological structure a line, and with This determines horizontal dimension PMI；By 2-port CSI-RS resource correspond to 2 of a certain row of 20-port topological structures it is same Polarize port, and determines vertical dimension PMI with this.

Second of scene,

The topological structure of the P antenna port is 20 antenna ports, and N1 is equal to two, N2 and is equal to five；

Accordingly, the selection obtains M aggregate resource, including：

A row are chosen from two array antenna ports, are chosen in the five same polarization antenna ports included from a row of selection Four first antenna ports and second antenna port in addition to four first antenna ports are obtained, by described four First antenna port is corresponding with first aggregate resource；Two homopolarities during one second antenna port is expert at It is corresponding with second aggregate resource to change antenna port；

Or

A row are chosen from two array antenna ports, are chosen in the five same polarization antenna ports included from a row of selection Four first antenna ports and second antenna port in addition to four first antenna ports are obtained, by described four First antenna port is corresponding with second aggregate resource；Two homopolarities during one second antenna port is expert at It is corresponding with first aggregate resource to change antenna port.

For 20-port non-precoded CSI-RS, { N1, N2 }={ 2,5 }, using the first dimension as in topological structure Horizontal dimension, regard the second dimension as the vertical dimension in topological structure, i.e. topological structure is the two dimensional topology that 5 rows 2 arrange, for Such case, when N1 is not more than N2, an array antenna port is chosen from N2 rows, is chosen from a line antenna port of selection One quantity antenna terminal mapping is to first aggregate resource；An array antenna port is chosen from N1 row, from a row of selection The second quantity antenna terminal mapping is chosen in antenna port to second aggregate resource；That is, { K1, K2 } can take It is worth for { 2,4 }, represents that 4-port CSI-RS resource therein correspond to 5 same polarizations of any one row in topological structure Any 4 same polarization port in port, 2 same polarization port in being expert at for remaining 1 same polarization port of the row, It is corresponding with 2-port CSI-RS resource.

Base station needs to notify UE (mode of acquiescence, or implicit signaling, or explicit signaling) by 4-port CSI-RS Which 1 port in 4 port and 2-port CSI-RS resource in resource joins together to correspond to 20-port 5 same polarization port of a certain row of topological structure, and vertical dimension PMI is determined with this；By 2-port CSI-RS resource Correspond to 2 same polarization port of 20-port topological structure a line, and horizontal dimension PMI is determined with this.

The third scene,

The topological structure of the P antenna port is 24 antenna ports, and N1 is equal to four, N2 and is equal to three；

Accordingly, the selection obtains M aggregate resource, including：

A row are chosen from four array antenna ports, are chosen in the three same polarization antenna ports included from a row of selection Two first antenna ports and second antenna port in addition to described two first antenna ports are obtained, will be described two First antenna port is corresponding with second aggregate resource；Four homopolarities during one second antenna port is expert at It is corresponding with first aggregate resource to change antenna port；

Or

A row are chosen from four array antenna ports, are chosen in the three same polarization antenna ports included from a row of selection Two first antenna ports and second antenna port in addition to described two first antenna ports are obtained, will be described two First antenna port is corresponding with first aggregate resource；Four homopolarities during one second antenna port is expert at It is corresponding with second aggregate resource to change antenna port.

For 24-port non-precoded CSI-RS, { N1, N2 }={ 4,3 }, using the first dimension as in topological structure Horizontal dimension, regard the second dimension as the vertical dimension in topological structure, i.e. topological structure is the two dimensional topology that 3 rows 4 arrange, for Such case, { K1, K2 } can represent that 2-port CSI-RS resource therein correspond to topology and tied using value as { 4,2 } Any 2 same polarization port in structure in 3 same polarization port of any one row, for remaining 1 same polarization port of the row 4 same polarization port in being expert at, it is corresponding with 4-port CSI-RS resource.Base station needs to notify the UE (sides of acquiescence Formula, or implicit signaling, or explicit signaling) by 2 port and 4-port CSI- in 2-port CSI-RS resource Which 1 port in RS resource joins together to correspond to 3 same polarization port of a certain row of 24-port topological structures, and Vertical dimension PMI is determined with this；4-port CSI-RS resource are corresponded to 4 of 24-port topological structure a line Same polarization port, and horizontal dimension PMI is determined with this.

4th kind of scene,

The topological structure of the P antenna port is 24 antenna ports, and N1 is equal to three, N2 and is equal to four；

Accordingly, the selection obtains M aggregate resource, including：

A line is chosen from four row antenna ports, is chosen in three included from a line of selection same polarization antenna port Two first antenna ports and second antenna port in addition to described two first antenna ports are obtained, will be described two First antenna port is corresponding with second aggregate resource；By four homopolarities in one second antenna port column It is corresponding with first aggregate resource to change antenna port；

Or

A line is chosen from four row antenna ports, is chosen in three included from a line of selection same polarization antenna port Two first antenna ports and second antenna port in addition to described two first antenna ports are obtained, will be described two First antenna port is corresponding with first aggregate resource；By four homopolarities in one second antenna port column It is corresponding with second aggregate resource to change antenna port.

Referring to Fig. 4-3, for 24-port non-precoded CSI-RS, { N1, N2 }={ 3,4 }, using the first dimension as Horizontal dimension in topological structure, using the second dimension as the vertical dimension in topological structure, i.e. topological structure is that the two dimension of 4 rows 3 row is opened up Structure is flutterred, in this case, { K1, K2 } can represent 2-port CSI-RS therein using value as { 4,2 } or { 2,4 } Resource corresponds to any 2 same polarization port in 3 same polarization port of any a line in topological structure, for the row 4 same polarization port in remaining 1 same polarization port columns, it is corresponding with 4-port CSI-RS resource.Base station Need to notify UE (mode of acquiescence, or implicit signaling, or explicit signaling) by 2 in 2-port CSI-RS resource Which 1 port in individual port and 4-port CSI-RS resource joins together to correspond to 24-port topological structures a certain 3 capable same polarization port, and horizontal dimension PMI is determined with this；4-port CSI-RS resource are corresponded into 24-port 4 same polarization port of a certain row of topological structure, and vertical dimension PMI is determined with this.

5th kind of scene,

The topological structure of the P antenna port is 32 antenna ports, and N1 is equal to eight, N2 and is equal to two；

Accordingly, the selection obtains M aggregate resource, including：

Choose the CSI-RS comprising eight antenna ports and include two antenna ports as the first aggregate resource, selection CSI-RS as the second aggregate resource；

Choose a line from two row antenna ports, eight included from a line of selection same polarization antenna port with it is described First aggregate resource is corresponding；A row are chosen from eight array antenna ports, the two same polarization days that will be included in a row of selection Line end mouth is corresponding with second aggregate resource；

Or

Choose the CSI-RS comprising eight antenna ports and include two antenna ports as the second aggregate resource, selection CSI-RS as the first aggregate resource；

Choose a line from two row antenna ports, eight included from a line of selection same polarization antenna port with it is described Second aggregate resource is corresponding；A row are chosen from eight array antenna ports, the two same polarization days that will be included in a row of selection Line end mouth is corresponding with first aggregate resource.

For 32-port non-precoded CSI-RS, { N1, N2 }={ 8,2 }, using the first dimension as in topological structure Horizontal dimension, regard the second dimension as the vertical dimension in topological structure, i.e. topological structure is the two dimensional topology that 2 rows 8 arrange, for Such case, { K1, K2 } can represent that 8-port CSI-RS resource therein correspond to using value as { 8,2 } or { 2,8 } 8 the same polarizations port, 2-port CSI-RS resource therein of any a line correspond to topological structure in topological structure In any one row 2 same polarization port.Base station needs to notify UE (mode of acquiescence, or implicit signaling, or explicit letter Make) horizontal dimension PMI is determined with 8-port CSI-RS resource；Determined with 2-port CSI-RS resource vertical Tie up PMI.

6th kind of scene,

The topological structure of the P antenna port is 32 antenna ports, and N1 is equal to two, N2 and is equal to eight；

Accordingly, the selection obtains M aggregate resource, including：

A row are chosen from two array antenna ports, the eight same polarization antenna ports included from the one of selection row with it is described First aggregate resource is corresponding；A line is chosen from eight row antenna ports, two included from a line of selection same polarization day Line end mouth is corresponding with second aggregate resource；

Or

A row are chosen from two array antenna ports, the eight same polarization antenna ports included from the one of selection row with it is described Second aggregate resource is corresponding；A line is chosen from eight row antenna ports, two included from a line of selection same polarization day Line end mouth is corresponding with first aggregate resource.

For 32-port non-precoded CSI-RS, { N1, N2 }={ 2,8 }, using the first dimension as in topological structure Horizontal dimension, regard the second dimension as the vertical dimension in topological structure, i.e. topological structure is the two dimensional topology that 8 rows 2 arrange, for Such case, { K1, K2 } can represent that 8-port CSI-RS resource therein correspond to using value as { 8,2 } or { 2,8 } 8 same polarizations port, 2-port CSI-RS resource therein of any one row correspond to topological structure in topological structure In any a line 2 same polarization port.Base station needs to notify UE (mode of acquiescence, or implicit signaling, or explicit letter Make) determine vertical dimension PMI with 8-port CSI-RS resource；Level is determined with 2-port CSI-RS resource Tie up PMI.

7th kind of scene,

The topological structure of the P antenna port is 32 antenna ports, and N1 is equal to four, N2 and is equal to four；

Accordingly, the selection obtains M aggregate resource, including：

Choose the CSI-RS comprising four antenna ports and include four antenna ports as the first aggregate resource, selection CSI-RS as the second aggregate resource；

Choose a line from four row antenna ports, by the four same polarization antenna ports included in a line of selection with it is described First aggregate resource is corresponding；A row are chosen from four array antenna ports, the four same polarization days that will be included in a row of selection Line end mouth is corresponding with the second aggregate resource.

For 32-port non-precoded CSI-RS, { N1, N2 }={ 4,4 }, using the first dimension as in topological structure Horizontal dimension, regard the second dimension as the vertical dimension in topological structure, i.e. topological structure is the two dimensional topology that 8 rows 2 arrange, for Such case, { K1, K2 } can represent that first 4-port CSI-RS resource therein correspond to using value as { 4,4 } 4 same polarization port of any one row in topological structure, second 4-port CSI-RS resource therein, which correspond to, to be opened up Flutter 4 same polarization port of any a line in structure.Base station needs to notify UE (mode of acquiescence, or implicit signaling, or explicitly Signaling) which 4-port CSI-RS resource to determine vertical dimension PMI with；With which 4-port CSI-RS Resource determines horizontal dimension PMI.

In addition, methods described also includes：According to antenna end corresponding to each CSI-RS in the M aggregate resource The numbering generation notice signaling of mouth；The notice signaling is sent to terminal device.It is its corresponding, it is described poly- by the M After joint source carries out CSI-RS transmission, methods described also includes：At least receive the channel status letter that terminal device reports Breath；Wherein, being comprised at least in the channel condition information has pre-coding matrix instruction.

Specifically, the generation and issuing of instruction may refer to Fig. 7, that reuse is can contemplate in Protocol Design is current CSI-RS-InfoNonPrecoded-r13 codebookConfigN1-r13 and codebookConfigN2- in TS36.331 R13 fields；The horizontal and vertical dimension that wherein N1 and N2 is corresponded respectively in CSI-RS antenna port layout it is identical The port numbers of polarization.

It can be seen that by using such scheme, it becomes possible to after the topological structure of P antenna port is got, enter group P day Some antennas port in line end mouth carries out CSI-RS resource impact.In this way, corresponding CSI can be got still ensuring that On the basis of information, CSI-RS transport overhead can be reduced.

Embodiment two,

On the basis of the processing that above-described embodiment provides, the present embodiment is described in detail mainly for M=1 scene, Specifically：M can represent P-port non-precoded using value as 1 by 1 K1-port CSI-RS resource The possible value of CSI-RS, K1 and K2 is { 2,4,8 }.

Specifically, M aggregate resource of the selection includes：Choose the CSI-RS for including the 3rd quantity antenna port As third polymerization resource；Wherein, the 3rd quantity is two integral multiple.Wherein, the 3rd quantity is one below： 2nd, four, eight.

Illustrating for M=1 is carried out with reference to Fig. 4-1~Fig. 4-4：

Example one,

The topological structure of the P antenna port is 24 antenna ports, and N1 is equal to two, N2 and is equal to six；

Accordingly, the selection obtains M aggregate resource, including：

The CSI-RS comprising eight antenna ports is chosen as third polymerization resource；

A row are chosen from two array antenna ports, by the antenna end of the six identical polarised directions included in a row of selection Mouth is corresponding with six CSI-RSs in the third polymerization resource；A line is chosen from six row antenna ports, by selection The antenna port of the two identical polarised directions included in a line and remaining two CSI-RS in the third polymerization resource Resource is corresponding.

Referring to Fig. 4-2, for 24-port non-precoded CSI-RS, { N1, N2 }={ 6,2 }, using the first dimension as Horizontal dimension in topological structure, using the second dimension as the vertical dimension in topological structure, i.e. topological structure is that the two dimension of 2 rows 6 row is opened up Structure is flutterred, in this case, K1 can be represented to correspond to topological structure in 8-port CSI-RS resource using value as 8 In any a line and any one row.Base station needs to notify UE (mode of acquiescence, or implicit signaling, or explicit signaling) by 8- Which 6 port in port CSI-RS resource correspond to 6 same polarization port with a line, and determine level with this Tie up PMI；Which 2 port in 8-port CSI-RS resource are corresponded to 2 same polarization port of a row, and come with this Determine vertical dimension PMI.

The topological structure of the P antenna port is 24 antenna ports, and N1 is equal to six, N2 and is equal to two；

Accordingly, the selection obtains M aggregate resource, including：

A line is chosen from two row antenna ports, by the antenna end of the six identical polarised directions included in a line of selection Mouth is corresponding with six CSI-RSs in the third polymerization resource；A row are chosen from six array antenna ports, by selection The antenna port of the two identical polarised directions included in one row and remaining two CSI-RS in the third polymerization resource Resource is corresponding.

For 24-port non-precoded CSI-RS, { N1, N2 }={ 2,6 }, using the first dimension as in topological structure Horizontal dimension, regard the second dimension as the vertical dimension in topological structure, i.e. topological structure is the two dimensional topology that 6 rows 2 arrange, for Such case, K1 can represent that 8-port CSI-RS resource correspond to any a line in topological structure and appointed using value as 8 The row of meaning one.Base station needs to notify UE (mode of acquiescence, or implicit signaling, or explicit signaling) by 8-port CSI-RS Which 2 port in resource correspond to 2 same polarization port with a line, and determine horizontal dimension PMI with this；By 8- Which 6 port in port CSI-RS resource correspond to 6 same polarization port of a row, and determine vertical dimension with this PMI。

Example two,

The topological structure of the P antenna port is 28 antenna ports, and N1 is equal to seven, N2 and is equal to two；

Accordingly, the selection obtains M aggregate resource, including：

A line is chosen from two row antenna ports and a row are chosen from seven array antenna ports, by a line of selection and The antenna port of the eight identical polarised directions included in the row chosen is corresponding with the third polymerization resource.

Referring to Fig. 4-4, for 28-port non-precoded CSI-RS, { N1, N2 }={ 7,2 }, using the first dimension as Horizontal dimension in topological structure, using the second dimension as the vertical dimension in topological structure, i.e. topological structure is that the two dimension of 2 rows 7 row is opened up Structure is flutterred, in this case, K1 can represent that 8-port CSI-RS resource correspond in topological structure using value as 8 8 same polarization port that any a line and any one row include.Base station need notify UE (mode of acquiescence, or implicit signaling, Or explicit signaling) which 7 port in 8-port CSI-RS resource are corresponded to 7 same polarizations with a line Port, and horizontal dimension PMI is determined with this；Which 2 port in 8-port CSI-RS resource are corresponded to the 2 of a row Individual same polarization port, and vertical dimension PMI is determined with this；

The topological structure of the P antenna port is 28 antenna ports, and N1 is equal to two, N2 and is equal to seven；

Accordingly, the selection obtains M aggregate resource, including：

A line is chosen from seven row antenna ports and a row are chosen from two array antenna ports, by a line of selection and The antenna port of the eight identical polarised directions included in the row chosen is corresponding with the third polymerization resource.

For 28-port non-precoded CSI-RS, { N1, N2 }={ 2,7 }, using the first dimension as in topological structure Horizontal dimension, regard the second dimension as the vertical dimension in topological structure, i.e. topological structure is the two dimensional topology that 7 rows 2 arrange, for Such case, K1 can represent that 8-port CSI-RS resource correspond to any a line in topological structure and appointed using value as 8 8 same polarization port that the row of meaning one include.Base station needs to notify UE (mode of acquiescence, or implicit signaling, or explicit letter Make) which 2 port in 8-port CSI-RS resource are corresponded into 2 same polarization port with a line, and come with this It is determined that horizontal dimension PMI；Which 7 port in 8-port CSI-RS resource are corresponded to 7 same polarization port of a row, And vertical dimension PMI is determined with this.

With reference to table 1, the antenna end of the selection mapping value CSI-RS provided embodiment one and embodiment two The list of mouth；The processing side that can be apparent from being mapped for different port quantity under different scenes by following list Formula, here without repeating：

Table 1

Due in the prior art, during using traditional full-port CSI-RS mapping, it is contemplated that actual antenna The factors such as size, { 20,24,28,32 } CSI-RS antenna port typical layout is as shown in table 2, wherein it is possible to see Go out whole antenna ports to be intended to be mapped in corresponding CSI-RS：

Table 2

Fig. 5 and Fig. 6 then show respectively a kind of 20-port and 28-port layout.With reference to TS36.211 Table 6.10.5-1 the design of middle 12/16port CSI-RS (resources), a kind of similar { 20,24,28,32 } CSI- The design of RS resources resources may be as shown in table 3.Feature is to useIt is individualPort CSI-RS resource Configurations is combined into { 20,24,28,32 } CSI-RS resources resources.

Antenna port quantity	Each resource respective antenna port number	The quantity of CSI-RS
			20	4	5
24	4	6
			28	4	7
32	8	4

Table 3

If using partial-port CSI-RS mapping, can use 2 CSI-RS resource Configurations (or being a pair of CSI-RS resource configurations) be combined into 20,24, 28,32 } design method of CSI-RS, this 2 CSI-RS resource configurations port numbers are respectively N1 and N2 (as shown in table 4), wherein N1 and N2 correspond respectively to horizontal and vertical in CSI-RS antenna port layout The port numbers for the identical polarization directly tieed up (can contemplate in Protocol Design and reuse CSI-RS- in current TS36.331 InfoNonPrecoded-r13 codebookConfigN1-r13 and codebookConfigN2-r13 fields, or be based on This is changed on a small quantity, may such as need to extend existing N1 and N2 span).

Table 4

The design method on { 20,24,28,32 } CSI-RS of table 3, { 3,5,6,7 }-port is needed in combination CSI-RS resource configuration design and definition, due to single CSI-RS resource in current standard Configuration is only supported { 1,2,4,8 }.A kind of method is for 3-port CSI-RS resource Configuration, first 3 taken in legacy 4-port CSI-RS resource configuration can be given tacit consent to Port, and for { 5,6,7 }-port CSI-RS resource configuration, it can give tacit consent to and take legacy 8-port Preceding 5/6/7 port in CSI-RS resource configuration.This design method can cause CSI-RS Waste.A kind of improved design method is：It is related to { 3,5,6,7 }-port in being combined for CSI-RS, by by 2 1 or 2 legacy of CSI-RS resource configurations CSI-RS resource configuration To represent, but need to reinterpret in the CSI-RS resource configuration (2) each port with 20,24,28, 32 } CSI-RS antenna port corresponding relation, a kind of example are as shown in table 5.

Table 5

Embodiment three,

The embodiments of the invention provide a kind of base station, as shown in figure 8, the base station includes：

Information acquisition unit 81, for obtaining the topological structure of P antenna port；Wherein, P is the integer more than or equal to 1；

Resource chooses unit 82, and for the topological structure based on the P antenna port, selection obtains M aggregate resource； Wherein, the aggregate resource is made up of the CSI-RS comprising at least one antenna port；In the M aggregate resource at least Some antennas port is used to transmit CSI-RS, and the quantity sum of the antenna port for transmitting CSI-RS is less than P；M be more than Integer equal to 1；

Transmission unit 83, for carrying out CSI-RS transmission by the M aggregate resource.

Information acquisition unit 81, the antenna port of two kinds of polarised directions is included for getting, each polarised direction Antenna port in include N1 rows N2 row antenna ports；Wherein, N1 and N2 is the integer more than 1.

Include the antenna port of two kinds of polarization in P antenna port, the antenna port of each polarization can represent For (N1, N2), wherein N1 represents the port numbers of the identical polarization of the first dimension, and N2 represents the port numbers of the identical polarization of the second dimension, total end Mouth number P=2*N1*N2.

CSI-RS resource include Ki (Ki values are { 2,4,8 })

The resource chooses unit 82, and greatest measure is obtained as the first reference number for being chosen from the N1 and N2 Value, minimum value is chosen as the second referential data；The CSI-RS for mapping the first quantity antenna port is chosen to make For the first aggregate resource, choose for the CSI-RS for mapping the second quantity antenna port as the second aggregate resource；

Wherein, first quantity is not less than the second quantity, and first quantity is no more than first referential data, institute State the second quantity and be not more than second referential data, and first quantity and the second quantity are two integral multiple.

Described choose is used for mapping the CSI-RS of the first quantity antenna port as the first aggregate resource, selection In map the second quantity antenna port CSI-RS as the second aggregate resource after, methods described also includes：

When N1 is more than N2, an array antenna port is chosen from N1 row, the first quantity day is chosen from a row of selection Line end mouth maps to first aggregate resource；A line antenna port is chosen from N2 rows, from a line antenna port of selection Choose second quantity antenna terminal mapping the second aggregate resource of value；

When N1 is not more than N2, an array antenna port is chosen from N2 rows, is chosen from a line antenna port of selection One quantity antenna terminal mapping is to first aggregate resource；An array antenna port is chosen from N1 row, from a row of selection The second quantity antenna terminal mapping is chosen in antenna port to second aggregate resource.

, wherein it is desired to further illustrate, the antenna port of selection can be the antenna end of same polarised direction Mouthful.

The resource chooses unit 82, for the day according to corresponding to each CSI-RS in the M aggregate resource The numbering generation notice signaling of line end mouth；The notice signaling is sent to terminal device.It is its corresponding, it is described to pass through the M After individual aggregate resource carries out CSI-RS transmission, methods described also includes：At least receive the channel shape that terminal device reports State information；Wherein, being comprised at least in the channel condition information has pre-coding matrix instruction.

Below, it is specifically described with reference to the processing scene for the M=2 that Fig. 4-1~Fig. 4-4 pairs of the present embodiment provides：

Example one,

The resource chooses unit, for choosing the CSI-RS comprising four antenna ports as the first polymerization money Source, the CSI-RS comprising two antenna ports is chosen as the second aggregate resource；

Or

Resource chooses unit, for choosing the CSI-RS comprising four antenna ports as the first aggregate resource, choosing The CSI-RS comprising two antenna ports is taken as the second aggregate resource；

Or

Example two,

Accordingly, the resource chooses unit, for choosing the CSI-RS comprising four antenna ports as first Aggregate resource, the CSI-RS comprising two antenna ports is chosen as the second aggregate resource；

Or

Example three,

Accordingly, the resource chooses unit, for choosing the CSI-RS comprising eight antenna ports as first Aggregate resource, the CSI-RS comprising two antenna ports is chosen as the second aggregate resource；

Or

For 32-port non-precoded CSI-RS, { N1, N2 }={ 8,2 }, using the first dimension as in topological structure Horizontal dimension, regard the second dimension as the vertical dimension in topological structure, i.e. topological structure is the two dimensional topology that 2 rows 8 arrange, for Such case, { K1, K2 } can represent that 8-port CSI-RS resource therein correspond to using value as { 8,2 } or { 2,8 } 8 the same polarizations port, 2-port CSI-RS resource therein of any a line correspond to topological structure in topological structure In any one row 2 same polarization port.Base station needs to notify UE (mode of acquiescence, or implicit signaling, or explicit letter Make) horizontal dimension PMI is determined with 8-port CSI-RS resource；Determined with 2-port CSI-RS resource vertical Tie up PMI；

Or

For 32-port non-precoded CSI-RS, { N1, N2 }={ 2,8 }, using the first dimension as in topological structure Horizontal dimension, regard the second dimension as the vertical dimension in topological structure, i.e. topological structure is the two dimensional topology that 8 rows 2 arrange, for Such case, { K1, K2 } can represent that 8-port CSI-RS resource therein correspond to using value as { 8,2 } or { 2,8 } 8 same polarizations port, 2-port CSI-RS resource therein of any one row correspond to topological structure in topological structure In any a line 2 same polarization port.Base station needs to notify UE (mode of acquiescence, or implicit signaling, or explicit letter Make) determine vertical dimension PMI with 8-port CSI-RS resource；Level is determined with 2-port CSI-RS resource Tie up PMI；

Accordingly, the resource chooses unit, for choosing the CSI-RS comprising four antenna ports as first Aggregate resource, the CSI-RS comprising four antenna ports is chosen as the second aggregate resource；

It can be seen that by using such scheme, it becomes possible to after the topological structure of P antenna port is got, only to P day Some antennas port in line end mouth carries out CSI-RS resource impact.In this way, corresponding CSI can be got still ensuring that On the basis of information, CSI-RS transport overhead can be reduced.

Example IV,

Specifically, the resource chooses unit 82, for choosing the CSI-RS for including the 3rd quantity antenna port As third polymerization resource；Wherein, the 3rd quantity is two integral multiple and the 3rd quantity no more than N1 and N2 it With.Wherein, the 3rd quantity is one below：2nd, four, eight.

Illustrating for M=1 is carried out with reference to Fig. 4-1~Fig. 4-4：

Example one,

Accordingly, the resource chooses unit, for choosing the CSI-RS comprising eight antenna ports as the 3rd Aggregate resource；A row are chosen from two array antenna ports, by the antenna of the six identical polarised directions included in a row of selection Port is corresponding with six CSI-RSs in the third polymerization resource；A line is chosen from six row antenna ports, will be chosen A line in the antenna port of two identical polarised directions that includes and remaining two CSI- in the third polymerization resource RS resources are corresponding.

Referring to Fig. 4-2, for 24-port non-precoded CSI-RS, { N1, N2 }={ 6,2 }, using the first dimension as Horizontal dimension in topological structure, using the second dimension as the vertical dimension in topological structure, i.e. topological structure is that the two dimension of 2 rows 6 row is opened up Structure is flutterred, in this case, K1 can be represented to correspond in topological structure in 8-portCSI-RS resource using value as 8 Any a line and any one row.Base station needs to notify UE (mode of acquiescence, or implicit signaling, or explicit signaling) by 8- Which 6 port in port CSI-RS resource correspond to 6 same polarization port with a line, and determine level with this Tie up PMI；Which 2 port in 8-port CSI-RS resource are corresponded to 2 same polarization port of a row, and come with this Determine vertical dimension PMI.

Accordingly, the resource chooses unit, for choosing the CSI-RS comprising eight antenna ports as the 3rd Aggregate resource；A line is chosen from two row antenna ports, by the antenna of the six identical polarised directions included in a line of selection Port is corresponding with six CSI-RSs in the third polymerization resource；A row are chosen from six array antenna ports, will be chosen A row in the antenna port of two identical polarised directions that includes and remaining two CSI- in the third polymerization resource RS resources are corresponding.

Example two,

Accordingly, the resource chooses unit, for choosing the CSI-RS comprising eight antenna ports as the 3rd Aggregate resource；From two row antenna ports choose a line and from seven array antenna ports choose one row, by a line of selection with And the antenna port of the eight identical polarised directions included in the row chosen is corresponding with the third polymerization resource.

Accordingly, the resource chooses unit, for choosing the CSI-RS comprising eight antenna ports as the 3rd Aggregate resource；From seven row antenna ports choose a line and from two array antenna ports choose one row, by a line of selection with And the antenna port of the eight identical polarised directions included in the row chosen is corresponding with the third polymerization resource.

If the module integrated described in the embodiment of the present invention is realized in the form of software function module and is used as independent production Product are sold or in use, can also be stored in a computer read/write memory medium.It is real based on such understanding, the present invention The part that the technical scheme of example substantially in other words contributes to prior art is applied to embody in the form of software product Come, the computer software product is stored in a storage medium, including some instructions are make it that a computer equipment (can To be personal computer, the network equipment or network equipment etc.) perform whole or the portion of each embodiment methods described of the present invention Point.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only Memory), deposit at random Access to memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can be with the medium of store program codes. So, the embodiment of the present invention is not restricted to any specific hardware and software combination.

The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.

Claims

1. a kind of information transferring method, it is characterised in that methods described includes：

Based on the topological structure of the P antenna port, selection obtains M aggregate resource；Wherein, the aggregate resource by comprising The CSI-RS composition of at least one antenna port；At least part antenna port is used to transmit in the M aggregate resource CSI-RS, and the quantity sum of the antenna port for transmitting CSI-RS is less than P；M is the integer more than or equal to 1；

CSI-RS transmission is carried out by the M aggregate resource.

2. according to the method for claim 1, it is characterised in that the topological structure for obtaining P antenna port, including：

Get the topological structure for the antenna port for including two kinds of polarised directions, in the antenna port of each polarised direction Include N1 row N2 row antenna ports；Wherein, N1 and N2 is the integer more than 1.

3. according to the method for claim 2, it is characterised in that the selection obtains M aggregate resource, including：

Choose the CSI-RS comprising the first quantity antenna port and include the second quantity as the first aggregate resource, selection The CSI-RS of antenna port is as the second aggregate resource；

Wherein, first quantity and the second quantity are identical or different and first quantity and the second quantity are two Integral multiple.

4. according to the method for claim 3, it is characterised in that first quantity and the second quantity are one below： 2nd, four, eight.

5. according to the method for claim 4, it is characterised in that the topological structure of the P antenna port is 20 days Line end mouth, and N1 is equal to five, N2 and is equal to two；

Accordingly, the selection obtains M aggregate resource, including：

Choose the CSI-RS comprising four antenna ports as the first aggregate resource, choose comprising two antenna ports CSI-RS is as the second aggregate resource；

A line is chosen from two row antenna ports, in the antenna port of the identical polarised direction of five included from a line of selection Selection obtains four first antenna ports and second antenna port in addition to four first antenna ports, by described in Four first antenna ports are corresponding with first aggregate resource；By two in one second antenna port column Same polarization antenna port is corresponding with second aggregate resource

Or

Choose the CSI-RS comprising two antenna ports as the first aggregate resource, choose comprising four antenna ports CSI-RS is as the second aggregate resource；

A line is chosen from two row antenna ports, chooses and obtains in five included from a line of selection same polarization antenna port Four first antenna ports and second antenna port in addition to four first antenna ports, by described four first Antenna port is corresponding with second aggregate resource；By two same polarization days in one second antenna port column Line end mouth is corresponding with first aggregate resource.

6. according to the method for claim 4, it is characterised in that the topological structure of the P antenna port is 20 days Line end mouth, and N1 is equal to two, N2 and is equal to five；

Accordingly, the selection obtains M aggregate resource, including：

A row are chosen from two array antenna ports, chooses and obtains in the five same polarization antenna ports included from a row of selection Four first antenna ports and second antenna port in addition to four first antenna ports, by described four first Antenna port is corresponding with first aggregate resource；Two same polarization days during one second antenna port is expert at Line end mouth is corresponding with second aggregate resource；

Or

A row are chosen from two array antenna ports, chooses and obtains in the five same polarization antenna ports included from a row of selection Four first antenna ports and second antenna port in addition to four first antenna ports, by described four first Antenna port is corresponding with second aggregate resource；Two same polarization days during one second antenna port is expert at Line end mouth is corresponding with first aggregate resource.

7. according to the method for claim 4, it is characterised in that the topological structure of the P antenna port is 24 Antenna port, and N1 is equal to four, N2 and is equal to three；

Accordingly, the selection obtains M aggregate resource, including：

A row are chosen from four array antenna ports, chooses and obtains in the three same polarization antenna ports included from a row of selection Two first antenna ports and second antenna port in addition to described two first antenna ports, by described two first Antenna port is corresponding with second aggregate resource；Four same polarization days during one second antenna port is expert at Line end mouth is corresponding with first aggregate resource；

Or

A row are chosen from four array antenna ports, chooses and obtains in the three same polarization antenna ports included from a row of selection Two first antenna ports and second antenna port in addition to described two first antenna ports, by described two first Antenna port is corresponding with first aggregate resource；Four same polarization days during one second antenna port is expert at Line end mouth is corresponding with second aggregate resource.

8. according to the method for claim 4, it is characterised in that the topological structure of the P antenna port is 24 Antenna port, and N1 is equal to three, N2 and is equal to four；

Accordingly, the selection obtains M aggregate resource, including：

A line is chosen from four row antenna ports, chooses and obtains in three included from a line of selection same polarization antenna port Two first antenna ports and second antenna port in addition to described two first antenna ports, by described two first Antenna port is corresponding with second aggregate resource；By four same polarization days in one second antenna port column Line end mouth is corresponding with first aggregate resource；

Or

A line is chosen from four row antenna ports, chooses and obtains in three included from a line of selection same polarization antenna port Two first antenna ports and second antenna port in addition to described two first antenna ports, by described two first Antenna port is corresponding with first aggregate resource；By four same polarization days in one second antenna port column Line end mouth is corresponding with second aggregate resource.

9. according to the method for claim 4, it is characterised in that the topological structure of the P antenna port is 32 Antenna port, and N1 is equal to eight, N2 and is equal to two；

Accordingly, the selection obtains M aggregate resource, including：

Choose the CSI-RS comprising eight antenna ports as the first aggregate resource, choose comprising two antenna ports CSI-RS is as the second aggregate resource；

A line is chosen from two row antenna ports, eight included from a line of selection same polarization antenna port and described first Aggregate resource is corresponding；A row are chosen from eight array antenna ports, the two same polarization antenna ends that will be included in a row of selection Mouth is corresponding with second aggregate resource；

Or

Choose the CSI-RS comprising eight antenna ports as the second aggregate resource, choose comprising two antenna ports CSI-RS is as the first aggregate resource；

A line is chosen from two row antenna ports, eight included from a line of selection same polarization antenna port and described second Aggregate resource is corresponding；A row are chosen from eight array antenna ports, the two same polarization antenna ends that will be included in a row of selection Mouth is corresponding with first aggregate resource.

10. according to the method for claim 4, it is characterised in that the topological structure of the P antenna port is 32 Antenna port, and N1 is equal to two, N2 and is equal to eight；

Accordingly, the selection obtains M aggregate resource, including：

A row are chosen from two array antenna ports, the eight same polarization antenna ports and described first included from a row of selection Aggregate resource is corresponding；A line is chosen from eight row antenna ports, two included from a line of selection same polarization antenna end Mouth is corresponding with second aggregate resource；

Or

A row are chosen from two array antenna ports, the eight same polarization antenna ports and described second included from a row of selection Aggregate resource is corresponding；A line is chosen from eight row antenna ports, two included from a line of selection same polarization antenna end Mouth is corresponding with first aggregate resource.

11. according to the method for claim 4, it is characterised in that the topological structure of the P antenna port is 32 Antenna port, and N1 is equal to four, N2 and is equal to four；

Accordingly, the selection obtains M aggregate resource, including：

Choose the CSI-RS comprising four antenna ports as the first aggregate resource, choose comprising four antenna ports CSI-RS is as the second aggregate resource；

A line is chosen from four row antenna ports, the four same polarization antenna ports and described first that will be included in a line of selection Aggregate resource is corresponding；A row are chosen from four array antenna ports, the four same polarization antenna ends that will be included in a row of selection Mouth is corresponding with the second aggregate resource.

12. according to the method for claim 2, it is characterised in that the selection obtains M aggregate resource, including：

The CSI-RS comprising the 3rd quantity antenna port is chosen as third polymerization resource；

Wherein, the 3rd quantity is two integral multiple.

13. according to the method for claim 12, it is characterised in that the 3rd quantity is one below：2nd, four, eight.

14. according to the method for claim 13, it is characterised in that the topological structure of the P antenna port is 24 Individual antenna port, and N1 is equal to two, N2 and is equal to six；

Accordingly, the selection obtains M aggregate resource, including：

A row are chosen from two array antenna ports, by the antenna port of the six identical polarised directions included in the one of selection row with Six CSI-RSs in the third polymerization resource are corresponding；A line is chosen from six row antenna ports, by a line of selection In the antenna port of two identical polarised directions that includes and remaining two CSI-RSs in the third polymerization resource It is corresponding.

15. according to the method for claim 13, it is characterised in that the topological structure of the P antenna port is 24 Individual antenna port, and N1 is equal to six, N2 and is equal to two；

Accordingly, the selection obtains M aggregate resource, including：

Choose a line from two row antenna ports, by the antenna port of the six identical polarised directions included in a line of selection with Six CSI-RSs in the third polymerization resource are corresponding；A row are chosen from six array antenna ports, by a row of selection In the antenna port of two identical polarised directions that includes and remaining two CSI-RSs in the third polymerization resource It is corresponding.

16. according to the method for claim 13, it is characterised in that the topological structure of the P antenna port is 28 Individual antenna port, and N1 is equal to seven, N2 and is equal to two；

Accordingly, the selection obtains M aggregate resource, including：

A line is chosen from two row antenna ports and a row are chosen from seven array antenna ports, by a line of selection and selection A row in the antenna port of eight identical polarised directions that includes it is corresponding with the third polymerization resource.

17. according to the method for claim 13, it is characterised in that the topological structure of the P antenna port is 28 Individual antenna port, and N1 is equal to two, N2 and is equal to seven；

Accordingly, the selection obtains M aggregate resource, including：

A line is chosen from seven row antenna ports and a row are chosen from two array antenna ports, by a line of selection and selection A row in the antenna port of eight identical polarised directions that includes it is corresponding with the third polymerization resource.

18. according to the method described in claim any one of 1-17, it is characterised in that described to be entered by the M aggregate resource Before row CSI-RS transmission, methods described also includes：

The numbering of antenna port corresponding to each CSI-RS in the M aggregate resource is determined respectively；

Accordingly, methods described also includes：

Notice signaling is generated according to the numbering of antenna port corresponding to each CSI-RS in the M aggregate resource；Hair The notice signaling is sent to terminal device.

19. a kind of base station, it is characterised in that the base station includes：

Resource chooses unit, and for the topological structure based on the P antenna port, selection obtains M aggregate resource；Wherein, The aggregate resource is made up of the CSI-RS comprising at least one antenna port；In the M aggregate resource at least partly Antenna port is used to transmit CSI-RS, and the quantity sum of the antenna port for transmitting CSI-RS is less than P；M is more than or equal to 1 Integer；

20. base station according to claim 19, it is characterised in that described information acquiring unit, include for getting The antenna port of two kinds of polarised directions, include N1 row N2 row antenna ports in the antenna port of each polarised direction； Wherein, N1 and N2 is the integer more than 1.

21. base station according to claim 20, it is characterised in that the resource chooses unit, and first is included for choosing The CSI-RS of quantity antenna port includes the CSI-RS of the second quantity antenna port as the first aggregate resource, selection Resource is as the second aggregate resource；

22. base station according to claim 21, it is characterised in that first quantity and the second quantity for it is following it One：2nd, four, eight.

23. base station according to claim 22, it is characterised in that the topological structure of the P antenna port is 20 Antenna port, and N1 is equal to five, N2 and is equal to two；

The resource chooses unit, for choosing the CSI-RS comprising four antenna ports as the first aggregate resource, choosing The CSI-RS comprising two antenna ports is taken as the second aggregate resource；

Or

24. base station according to claim 22, it is characterised in that the topological structure of the P antenna port is 20 Antenna port, and N1 is equal to two, N2 and is equal to five；

Resource chooses unit, for choosing the CSI-RS comprising four antenna ports as the first aggregate resource, selection bag CSI-RS containing two antenna ports is as the second aggregate resource；

Or

25. base station according to claim 22, it is characterised in that the topological structure of the P antenna port is 24 Individual antenna port, and N1 is equal to four, N2 and is equal to three；

Accordingly, the resource chooses unit, for choosing the CSI-RS comprising four antenna ports as the first polymerization Resource, the CSI-RS comprising two antenna ports is chosen as the second aggregate resource；

Or

26. base station according to claim 22, it is characterised in that the topological structure of the P antenna port is 24 Individual antenna port, and N1 is equal to three, N2 and is equal to four；

Or

27. base station according to claim 22, it is characterised in that the topological structure of the P antenna port is 32 Individual antenna port, and N1 is equal to eight, N2 and is equal to two；

Accordingly, the resource chooses unit, for choosing the CSI-RS comprising eight antenna ports as the first polymerization Resource, the CSI-RS comprising two antenna ports is chosen as the second aggregate resource；

Or

28. base station according to claim 22, it is characterised in that the topological structure of the P antenna port is 32 Individual antenna port, and N1 is equal to two, N2 and is equal to eight；

Or

29. base station according to claim 22, it is characterised in that the topological structure of the P antenna port is 32 Individual antenna port, and N1 is equal to four, N2 and is equal to four；

Accordingly, the resource chooses unit, for choosing the CSI-RS comprising four antenna ports as the first polymerization Resource, the CSI-RS comprising four antenna ports is chosen as the second aggregate resource；

30. base station according to claim 20, it is characterised in that

The resource chooses unit, is provided for choosing the CSI-RS comprising the 3rd quantity antenna port as third polymerization Source；

Wherein, the 3rd quantity is two integral multiple.

31. base station according to claim 30, it is characterised in that the 3rd quantity is one below：2nd, four, eight.

32. base station according to claim 31, it is characterised in that the topological structure of the P antenna port is 24 Individual antenna port, and N1 is equal to two, N2 and is equal to six；

Accordingly, the resource chooses unit, for choosing the CSI-RS comprising eight antenna ports as third polymerization Resource；A row are chosen from two array antenna ports, by the antenna port of the six identical polarised directions included in a row of selection It is corresponding with six CSI-RSs in the third polymerization resource；A line is chosen from six row antenna ports, by the one of selection The antenna port of the two identical polarised directions included in row provides with remaining two CSI-RS in the third polymerization resource Source is corresponding.

33. base station according to claim 31, it is characterised in that the topological structure of the P antenna port is 24 Individual antenna port, and N1 is equal to six, N2 and is equal to two；

Accordingly, the resource chooses unit, for choosing the CSI-RS comprising eight antenna ports as third polymerization Resource；A line is chosen from two row antenna ports, by the antenna port of the six identical polarised directions included in a line of selection It is corresponding with six CSI-RSs in the third polymerization resource；A row are chosen from six array antenna ports, by the one of selection The antenna port of the two identical polarised directions included in row provides with remaining two CSI-RS in the third polymerization resource Source is corresponding.

34. base station according to claim 31, it is characterised in that the topological structure of the P antenna port is 28 Individual antenna port, and N1 is equal to seven, N2 and is equal to two；

Accordingly, the resource chooses unit, for choosing the CSI-RS comprising eight antenna ports as third polymerization Resource；A line is chosen from two row antenna ports and a row are chosen from seven array antenna ports, by a line of selection and choosing The antenna port of the eight identical polarised directions included in the row taken is corresponding with the third polymerization resource.

35. base station according to claim 31, it is characterised in that the topological structure of the P antenna port is 28 Individual antenna port, and N1 is equal to two, N2 and is equal to seven；

Accordingly, the resource chooses unit, for choosing the CSI-RS comprising eight antenna ports as third polymerization Resource；A line is chosen from seven row antenna ports and a row are chosen from two array antenna ports, by a line of selection and choosing The antenna port of the eight identical polarised directions included in the row taken is corresponding with the third polymerization resource.

36. according to the base station described in claim any one of 19-35, it is characterised in that

The resource chooses unit, for determining antenna corresponding to each CSI-RS in the M aggregate resource respectively The numbering of port；

Accordingly, the transmission unit, it is additionally operable to the antenna according to corresponding to each CSI-RS in the M aggregate resource The numbering generation notice signaling of port；The notice signaling is sent to terminal device.