CN105519007B

CN105519007B - A kind of information transferring method, equipment and system

Info

Publication number: CN105519007B
Application number: CN201480033648.7A
Authority: CN
Inventors: 周平; 宋毅
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2014-08-06
Filing date: 2014-08-06
Publication date: 2019-04-23
Anticipated expiration: 2034-08-06
Also published as: CN105519007A; WO2016019530A1

Abstract

The embodiment of the invention discloses a kind of information transferring method, equipment and systems, are related to the communications field, are able to solve the problem of signal interference that user equipment generates other users equipment in communication network is affected to information transmission quality.The specific scheme is that first network equipment obtains the first channel quality information and second channel quality information, precoding vector is determined according to the first channel quality information and second channel quality information, information is sent at least one user equipment according to precoding vector, alternatively, precoding vector is sent at least one user equipment and receives the information that at least one user equipment is sent according to precoding vector.The present invention is transmitted for information.

Description

A kind of information transferring method, equipment and system

Technical field

The present embodiments relate to the communications field more particularly to a kind of information transferring methods, equipment and system.

Background technique

With the development of communication technology, to meet the needs of user is growing for communication service, communication network is promoted The capacity of middle information transmission becomes very crucial problem.

It in the prior art, can be using virtual more for long term evolution (Long Term Evolution, LTE) system Input multi output (Virtual Multiple Input Multiple Output, VMIMO), collaboration multicast communication Technologies such as (Coordinated Multiple Points, CoMP) improve the capacity of information transmission in communication network.In VMIMO In technology, multiple user equipmenies is made to transmit information in same physical resource；In CoMP technology, to a certain user equipment, Joint reception is carried out to the information that the user is transmitted using the antenna of this cell and the antenna of same frequency adjacent area.

But either VMIMO technology or CoMP technology, in promoting communication network while information carrying capacity, The signal interference information transmission quality of communication network is generated for other users equipment.

Summary of the invention

The embodiment of the present invention provides a kind of information transferring method, equipment and system, is able to solve user in communication network The problem of signal interference that equipment generates other users equipment is affected to information transmission quality.

In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that

In a first aspect, the embodiment of the present invention provides a kind of first network equipment, comprising:

Acquiring unit, for obtaining the first channel quality information and second channel quality information, the first network equipment Belong to first community, first channel quality information is used to indicate at least one user equipment in the channel of the first community Quality, the second channel quality information are used to indicate at least one described user equipment in the channel matter of the second community Amount；

Coding unit, first channel quality information and the second channel for being obtained according to the acquiring unit Quality information determines precoding vector；

Transmit-Receive Unit, the precoding vector for generating according to the coding unit are set at least one described user Preparation is delivered letters breath；

Alternatively, the Transmit-Receive Unit, the precoding vector for generating the coding unit be sent to it is described extremely A few user equipment simultaneously receives the information that at least one described user equipment is sent according to the precoding vector.

With reference to first aspect, in the first possible implementation,

The coding unit, specifically for by matrix A and matrix B substitute into the first formula be calculated the precoding to Amount, the matrix A are the channel quality estimation matrix of at least one user equipment in the first community, the matrix B For at least one described user equipment the second community channel quality estimation matrix；

First formula is

Wherein, F is the precoding vector, U be when adjacent area interference is minimum the first network equipment on I subcarrier The estimated value of the sum of maximal received power, i are subcarrier number, and 1≤i≤I.

The possible implementation of with reference to first aspect the first, in the second possible implementation,

Precoding vector F=[the f₁ f₂ … f_N]^T, (0 < | f₁|,|f₂|…|f_N|≤1), N is positive integer；

The coding unit, be specifically used for section (0,1] according to preset step-length be arranged code word f_n(1≤n≤N), n is Positive integer, f_nFor plural number, by the code word f of setting_nIt substitutes into first formula and calculates the estimation of maximum power value U, it will be so that institute State the maximum code word f of estimation of maximum power value U value_nForm the precoding vector F.

The possible implementation of with reference to first aspect the first, in the third possible implementation, it is described at least One user equipment includes the first user equipment；

First channel quality information includes

Wherein, A is channel quality estimation matrix of first user equipment in the first community, H_nm,0,i(1≤n≤ N, 1≤n≤M and n, m are integer) it is m-th reception of first user equipment in i-th of subcarrier of the first community Corresponding n-th of transmitting antenna upper signal channel estimated value of antenna, N are the number of transmission antennas of single user's equipment, and M is single subdistrict Receiving antenna quantity and M >=N, i be subcarrier number；

The second channel quality information includes

Wherein, B is channel quality estimation matrix of first user equipment in the second community, H_nm,1,i(1≤n≤ N, 1≤n≤M and n, m are integer) to be first user equipment connect in m-th of i-th of subcarrier of the second community Corresponding n-th of transmitting antenna upper signal channel estimated value of antenna is received, N is the number of transmission antennas of single user's equipment, and M is single small The receiving antenna quantity and M >=N, i in area are subcarrier number；

The precoding vector is F=[f_1i f_2i … f_Ni]^T, (0 < | f_1i|,|f_2i|…|f_Ni|≤1), f_ni(1≤n≤ N) indicate the precoding of first user equipment on i-th of subcarrier of n-th of transmitting antenna of the first community to Amount, f_niFor plural number.

The possible implementation of with reference to first aspect the first, in the fourth possible implementation, it is described at least One user equipment includes the first user equipment and second user equipment；

The first channel quality information packet

Wherein, A is that first user equipment and the second user equipment are estimated in the channel quality of the first community Count matrix, H_nm,00,i(1≤n≤N, 1≤n≤M and n, m are integer) is first user equipment the of the first community Corresponding n-th of transmitting antenna upper signal channel estimated value of m-th of receiving antenna of i subcarrier, H_nm,01,i(1≤n≤N, 1≤n≤ M and n, m are integer) it is that the second user equipment is corresponding in m-th of receiving antenna of i-th of subcarrier of the first community N-th of transmitting antenna upper signal channel estimated value, N be single user's equipment number of transmission antennas, M be single subdistrict reception day Line number amount and M >=2N, i are subcarrier number；

The second channel quality information packet

Wherein, B is that first user equipment and the second user equipment are estimated in the channel quality of the second community Count matrix, H_nm,10,i(1≤n≤N, 1≤n≤M and n, m are integer) is first user equipment the of the second community Corresponding n-th of transmitting antenna upper signal channel estimated value of m-th of receiving antenna of i subcarrier, H_nm,11,i(1≤n≤N, 1≤n≤ M and n, m are integer) it is that the second user equipment is corresponding in m-th of receiving antenna of i-th of subcarrier of the second community N-th of transmitting antenna upper signal channel estimated value, N be single user's equipment number of transmission antennas, M be single subdistrict reception day Line number amount and M >=2N, i are subcarrier number；

The precoding vector is F=[f_01,i f_02,i … f_0N,i f_11,i f_12,i …f_{1N, i}]^T(0 < | f_{01, i}|…| f_{0N, i}|, | f_{11, i}|f_{1N, i}|≤1), f_0n,i(1≤n≤N) indicates first user equipment in n-th of hair of the first community Penetrate the precoding vector on i-th of subcarrier of antenna, f_1n,i(1≤n≤N) indicates the second user equipment described first Precoding vector on i-th of subcarrier of n-th of transmitting antenna of cell, f_0n,i, f_1n,iIt is all plural number.

Any implementation into the 4th kind of possible implementation of first aspect with reference to first aspect, can at the 5th kind In the implementation of energy,

The acquiring unit includes the first receiving subelement, the reference sent for receiving at least one described user equipment Pilot signal；

The acquiring unit further includes estimation subelement, for according to first receiving subelement it is received it is described at least The reference pilot signal that one user equipment is sent estimates that at least one described user equipment passes in the first community The power of defeated information simultaneously generates first channel quality information.

Any implementation into the 5th kind of possible implementation of first aspect with reference to first aspect, can at the 6th kind In the implementation of energy,

The acquiring unit further includes the second receiving subelement, for receiving second letter of second network equipment transmission Road quality information, second network equipment belong to second community.

Second aspect, the embodiment of the present invention provide a kind of second network equipment, comprising:

Receiving unit, for receiving the reference pilot signal of at least one user equipment transmission；

Estimation unit, for according to received described at least one the described use of reference pilot signal estimation of the receiving unit Reception power of the family in the second community simultaneously generates second channel quality information；

Transmission unit, for the second channel quality information to be sent to first network equipment, so as to first net Network equipment determines precoding vector, the second channel matter according to the second channel quality information and the first channel quality information Amount information is used to indicate at least one described user equipment in the channel quality of second community, and second network equipment belongs to the Two cells, first channel quality information are used to indicate at least one described user equipment in the channel matter of the first community Amount, the first network equipment belong to first community.

In conjunction with second aspect, in the first possible implementation, at least one described user equipment includes the first use Family equipment,

The second channel quality information includes

Wherein, B is channel quality estimation matrix of first user equipment in the second community, H_nm,1,i(1≤n≤ N, 1≤n≤M and n, m are integer) it is m-th reception of first user equipment in i-th of subcarrier of the second community Corresponding n-th of transmitting antenna upper signal channel estimated value of antenna, N are the number of transmission antennas of single user's equipment, and M is single subdistrict Receiving antenna quantity and M >=N, i be subcarrier number.

In conjunction with second aspect, in the second possible implementation, at least one described user equipment includes the first use Family equipment and second user equipment,

The second channel quality information packet

Wherein, B is that first user equipment and the second user equipment are estimated in the channel quality of the second community Count matrix, H_nm,10,i(1≤n≤N, 1≤n≤M and n, m are integer) is first user equipment the of the second community Corresponding n-th of transmitting antenna upper signal channel estimated value of m-th of receiving antenna of i subcarrier, H_nm,11,i(1≤n≤N, 1≤n≤ M and n, m are integer) it is that the second user equipment is corresponding in m-th of receiving antenna of i-th of subcarrier of the second community N-th of transmitting antenna upper signal channel estimated value, N be single user's equipment number of transmission antennas, M be single subdistrict reception day Line number amount and M >=2N, i are subcarrier number.

The third aspect, the embodiment of the present invention provide a kind of first network equipment, including processor, memory, bus, transmitting Device and receiver, the processor, the memory, the transmitter and the receiver are connected with each other by the bus；

Wherein, the processor, for obtaining the first channel quality information and second channel quality information, first net Network equipment belongs to first community, and first channel quality information is used to indicate at least one user equipment in the first community Channel quality, the second channel quality information is used to indicate at least one described user equipment in the letter of the second community Road quality；

The processor is also used to be determined according to first channel quality information and the second channel quality information pre- Coding vector；

The processor is also used to set by the transmitter at least one described user according to the precoding vector Preparation is delivered letters breath, alternatively, the processor, be also used to by the transmitter by the precoding vector be sent to it is described at least One user equipment simultaneously receives what at least one described user equipment was sent according to the precoding vector by the receiver Information.

In conjunction with the third aspect, in the first possible implementation,

The precoding vector is calculated specifically for matrix A and matrix B are substituted into the first formula in the processor, The matrix A is at least one described user equipment in the channel quality estimation matrix of the first community, and the matrix B is institute At least one user equipment is stated in the channel quality estimation matrix of the second community；

First formula is

It is in the second possible implementation, described to prelist in conjunction with the first possible implementation of the third aspect Code vector F=[f₁ f₂ … f_N]^T, (0 < | f₁|,|f₂|…|f_N|≤1), N is positive integer；

The processor, be specifically used for section (0,1] according to preset step-length be arranged code word f_n(1≤n≤N), n is positive Integer, f_nFor plural number, by the code word f of setting_nIt substitutes into first formula and calculates the estimation of maximum power value U, it will be so that described The maximum code word f of estimation of maximum power value U value_nForm the precoding vector F.

In conjunction with the first possible implementation of the third aspect, in the third possible implementation, it is described at least One user equipment includes the first user equipment；

First channel quality information includes

The second channel quality information includes

In conjunction with the first possible implementation of the third aspect, in the fourth possible implementation, it is described at least One user equipment includes the first user equipment and second user equipment；

The first channel quality information packet

The second channel quality information packet

The precoding vector is

F=[f_01,i f_02,i … f_0N,i f_11,i f_12,i … f_{1N, i}]^T, (0 <_{F01, i}|…|f_{0N, i}|, | f_{11, i}|…|f_{1N, i} |≤1), f_0n,i(1≤n≤N) indicates first user equipment in i-th of son of n-th of transmitting antenna of the first community Precoding vector on carrier wave, f_1n,i(1≤n≤N) indicates the second user equipment in n-th of transmitting of the first community Precoding vector on i-th of subcarrier of antenna, f_0n,i, f_1n,iIt is all plural number.

In conjunction with the third aspect to the third aspect the 4th kind of possible implementation in any implementation, can at the 5th kind In the implementation of energy,

The processor is led specifically for receiving the reference that at least one described user equipment is sent by the receiver Frequency signal estimates at least one described user equipment according to the reference pilot signal that at least one described user equipment is sent The first community internal transmission information power and generate first channel quality information.

In conjunction with the third aspect to the third aspect the 5th kind of possible implementation in any implementation, can at the 6th kind In the implementation of energy,

The processor, specifically for receiving the second channel matter that second network equipment is sent by the receiver Information is measured, second network equipment belongs to second community.

Fourth aspect, the embodiment of the present invention provide a kind of second network equipment, including processor, memory, bus, transmitting Device and receiver, the processor, the memory, the transmitter and the receiver are connected with each other by the bus；

Wherein, the processor, for receiving the reference pilot of at least one user equipment transmission by the receiver Signal；

The processor is also used to estimate that at least one described user is small described second according to the reference pilot signal Reception power in area simultaneously generates second channel quality information；

The processor, is also used to that the second channel quality information is sent to first network by the transmitter and sets It is standby, so as to the first network equipment according to the second channel quality information and the first channel quality information determine precoding to Amount, the second channel quality information are used to indicate at least one described user equipment in the channel quality of second community, described Second network equipment belongs to second community, and first channel quality information is used to indicate at least one described user equipment in institute The channel quality of first community is stated, the first network equipment belongs to first community.

In conjunction with fourth aspect, in the first possible implementation, at least one described user equipment includes the first use Family equipment,

The second channel quality information includes

In conjunction with fourth aspect, in the second possible implementation, at least one described user equipment includes the first use Family equipment and second user equipment,

The second channel quality information packet

5th aspect, the embodiment of the present invention provide a kind of information transferring method, comprising:

First network equipment obtains the first channel quality information, and the first network equipment belongs to first community, and described the One channel quality information is used to indicate at least one user equipment in the channel quality of the first community；

The first network equipment obtains second channel quality information, and the second channel quality information is used to indicate described Channel quality of at least one user equipment in the second community；

The first network equipment determines pre- according to first channel quality information and the second channel quality information Coding vector；

The first network equipment sends information at least one described user equipment according to the precoding vector, or The precoding vector is sent at least one described user equipment and receives described at least one by person, the first network equipment The information that a user equipment is sent according to the precoding vector.

In conjunction with the 5th aspect, in the first possible implementation,

The first network equipment determines pre- according to first channel quality information and the second channel quality information Coding vector, comprising:

Matrix A and matrix B are substituted into the first formula and the precoding vector are calculated by the first network equipment, described Matrix A is channel quality estimation matrix of at least one the described user equipment in the first community, the matrix B be it is described extremely Channel quality estimation matrix of few user equipment in the second community；

First formula is

In conjunction with the first possible implementation of the 5th aspect, in the second possible implementation,

The first network equipment section (0,1] according to preset step-length be arranged code word f_n(1≤n≤N), n is positive whole Number, f_nFor plural number；

By the code word f of setting_nIt substitutes into first formula and calculates the estimation of maximum power value U, it will be so that the maximum The maximum code word f of power estimation value U value_nForm the precoding vector F.

In conjunction with the 5th aspect the first possible implementation, in the third possible implementation, it is described at least One user equipment includes the first user equipment；

First channel quality information includes

The second channel quality information includes

In conjunction with the 5th aspect the first possible implementation, in the fourth possible implementation, it is described at least One user equipment includes the first user equipment and second user equipment；

The first channel quality information packet

The second channel quality information packet

The precoding vector is

F=[f_01,i f_02,i … f_0N,i f_11,i f_12,i …f_{1N, i}]^T, (0 < | f_{01, i}|…|f_{0N, i}|, | f_{11, i}|…|f_{1N, i} |≤1), f_0n,i(1≤n≤N) indicates first user equipment in i-th of son of n-th of transmitting antenna of the first community Precoding vector on carrier wave, f_1n,i(1≤n≤N) indicates the second user equipment in n-th of transmitting of the first community Precoding vector on i-th of subcarrier of antenna, f_0n,i, f_1n,iIt is all plural number.

In conjunction with the 5th aspect to the 5th aspect the 4th kind of possible implementation in any implementation, can at the 5th kind In the implementation of energy, the first network equipment obtains the first channel quality information, comprising:

The first network equipment receives the reference pilot signal that at least one described user equipment is sent；

The first network equipment estimates institute according to the reference pilot signal that at least one described user equipment is sent At least one user equipment is stated in the power of the first community internal transmission information and generates first channel quality information.

In conjunction with the 5th aspect to the 5th aspect the 5th kind of possible implementation in any implementation, can at the 6th kind In the implementation of energy, the first network equipment obtains second channel quality information, comprising:

The first network equipment receives the second channel quality information that second network equipment is sent, second net Network equipment belongs to second community.

6th aspect, the embodiment of the present invention provide a kind of information transferring method, comprising:

Second network equipment receives the reference pilot signal of at least one user equipment transmission；

Second network equipment estimates that at least one described user is small described second according to the reference pilot signal Reception power in area simultaneously generates second channel quality information；

The second channel quality information is sent to first network equipment by second network equipment, so as to described first The network equipment determines precoding vector, the second channel according to the second channel quality information and the first channel quality information Quality information is used to indicate at least one described user equipment in the channel quality of second community, and second network equipment belongs to Second community, first channel quality information are used to indicate at least one described user equipment in the channel of the first community Quality, the first network equipment belong to first community.

In conjunction with the 6th aspect, in the first possible implementation, at least one described user equipment includes the first use Family equipment,

The second channel quality information includes

In conjunction with the 6th aspect, in the second possible implementation, at least one described user equipment includes the first use Family equipment and second user equipment,

The second channel quality information packet

7th aspect, the embodiment of the present invention provides a kind of Radio Network System, including first network equipment, the second network are set Standby and at least one user equipment；

Wherein, the first network equipment is institute in the possible implementation of any one of first aspect or first aspect The first network equipment of description, second network equipment are any one possible realization side of second aspect or second aspect Second network equipment described in formula；

Alternatively, the first network equipment is institute in the possible implementation of any one of the third aspect or the third aspect The first network equipment of description, second network equipment are any one possible realization side of fourth aspect or fourth aspect Second network equipment described in formula.

A kind of information transferring method, equipment and the system that the embodiment of the present invention provides, are obtained by first network equipment First channel quality information and second channel quality information are determined according to the first channel quality information and second channel quality information Precoding vector, according to precoding vector at least one user equipment send information, alternatively, by precoding vector be sent to A few user equipment simultaneously receives the information that at least one user equipment is sent according to precoding vector.Because determine precoding to With reference to second channel quality information during amount, it can reduce and the signal that other users equipment generates is done when information is sent It disturbs, solves the signal interference that user equipment generates other users equipment in communication network and be affected to information transmission quality The problem of.

Detailed description of the invention

In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, embodiment will be described below Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some Embodiment for those of ordinary skill in the art without creative efforts, can also be attached according to these Figure obtains other attached drawings.

Fig. 1 is a kind of information transferring method flow diagram that the embodiment of the present invention provides；

Fig. 2 is another information transferring method flow diagram that the embodiment of the present invention provides；

Fig. 3 is a kind of information transferring method information exchange schematic diagram that another embodiment of the present invention provides；

Fig. 4 is a kind of application scenarios schematic network structure that the embodiment of the present invention provides；

Fig. 5 is another application scenarios schematic network structure that the embodiment of the present invention provides；

Fig. 6 is a kind of first network device structure schematic diagram that the embodiment of the present invention provides；

Fig. 7 is one kind the second network equipment infrastructure schematic diagram that the embodiment of the present invention provides；

Fig. 8 is a kind of first network device structure schematic diagram that another embodiment of the present invention provides；

Fig. 9 is one kind the second network equipment infrastructure schematic diagram that another embodiment of the present invention provides；

Figure 10 is a kind of Radio Network System structural schematic diagram that the embodiment of the present invention provides.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.

The embodiment of the present invention provides a kind of information transferring method, is applied to first network equipment, shown referring to Fig.1, packet Include following steps:

101, first network equipment obtains the first channel quality information.

Wherein, first network equipment belongs to first community, and the first channel quality information is used to indicate at least one user and sets The standby channel quality in first community.

102, first network equipment obtains second channel quality information.

Wherein, second channel quality information is used to indicate at least one user equipment in the channel quality of second community.

Herein, step 101 and 102 has no tandem relationship.

103, first network equipment determines precoding vector according to the first channel quality information and second channel quality information.

Optionally, the first channel quality information includes channel quality estimation square of at least one user equipment in first community Battle array A, second channel quality information includes channel quality estimation matrix B of at least one user equipment in second community, by matrix A The first formula is substituted into matrix B, and precoding vector is calculated.

First formula is

Wherein, F is precoding vector, and U, which is that first network equipment is maximum on I subcarrier when adjacent area interference is minimum, to be received The estimated value of the sum of power, i are subcarrier number, and 1≤i≤I.Tr [] is the mark for seeking matrix, []^HIt is to turn to matrix Conjugater transformation is set, | | | |_FIt is to seek norm of matrix, AF represents matrix A and is multiplied with vector F, and BF represents matrix B and vector F phase Multiply.

It is specific optional, precoding vector F=[f₁ f₂ … f_N]^T, (0 < | f₁|,|f₂|…|f_N|≤1), N is positive whole Number, it is preferred that N is the quantity of the transmitting antenna of single user's equipment, f_n(1≤n≤N) indicates at least one user equipment Precoding vector on n-th of transmitting antenna of one cell.First network equipment section (0,1] in be arranged according to preset step-length Code word f_n(1≤n≤N), n are positive integer, f_nFor plural number.By the code word f of setting_nIt substitutes into the first formula and calculates adjacent area interference minimum When first network equipment the sum of maximal received power on I subcarrier estimated value U, will be so that the maximum code word f of U value_n Form precoding vector F, it is preferred that can be grouped with sub-carrier, the subcarrier in same group is prelisted using identical Code vector can reduce the time for calculating U in this way.

Herein, because matrix A represents at least one user channel quality estimation matrix that information is transmitted in first community, Matrix B represents at least one user channel quality estimation matrix that information is transmitted in second community, and the power of matrix B instruction is got over Greatly, it is bigger to the interference of the other users equipment in second community in information transmission just to represent at least one user, therefore, makes The channel received power of matrix A instruction is as big as possible, and the channel received power for indicating matrix B is as small as possible, it is ensured that When at least one user transmits information, transmission quality is high and interferes other users equipment small.

104, first network equipment sends information at least one user equipment according to precoding vector, alternatively, the first net Precoding vector is sent at least one user equipment and receives at least one user equipment according to precoding vector by network equipment The information of transmission.

Optionally, precoding vector can also be sent to second network equipment by first network equipment, so as to the second network Information of the equipment according to precoding vector and received reference pilot signal at least one user equipment in second community is transmitted Power is estimated next time.

The information transferring method that the embodiment of the present invention provides obtains the first channel quality information by first network equipment And second channel quality information, precoding vector is determined according to the first channel quality information and second channel quality information, according to Precoding vector sends information at least one user equipment, alternatively, precoding vector is sent at least one user equipment And receive the information that at least one user equipment is sent according to precoding vector.Because being referred to during determining precoding vector Second channel quality information can reduce the signal interference generated when information is sent to other users equipment, solve communication The problem of signal interference that user equipment generates other users equipment in network is affected to information transmission quality.

The corresponding embodiment of corresponding diagram 1, the embodiment of the present invention provide another information transferring method, are applied to the second net Network equipment, referring to shown in Fig. 2, comprising the following steps:

201, second network equipment receives the reference pilot signal of at least one user equipment transmission.

Optionally, it is that at least one user equipment is matched that the sequence of reference pilot signal and transmission power, which can be upper layer network, It sets.

202, second network equipment estimates reception function of at least one user in second community according to reference pilot signal Rate simultaneously generates second channel quality information.

Optionally, second network equipment can be according to the pre- of reference pilot signal and at least one user equipment previous moment Coding vector estimates reception power of at least one user in second community.It is further alternative, the second network equipment period Reception power of at least one user equipment of the estimation of property in second community, at least one user equipment previous moment prelist Code vector can be used for estimating the reception power at this moment, and the reception power at this moment is generated second channel quality information Being sent to first network equipment afterwards can be generated the precoding vector at least one this moment of user equipment.Certainly, the second net Network equipment estimate at least one user equipment in second community reception power period can as the case may be depending on, this Invention is with no restrictions.

203, second channel quality information is sent to first network equipment by second network equipment.

Optionally, second network equipment sends second channel quality information to first network equipment so as to first network equipment Determine that precoding vector, second channel quality information are used to indicate according to second channel quality information and the first channel quality information For at least one user equipment in the channel quality of second community, second network equipment belongs to second community, the first channel quality letter Breath is used to indicate at least one user equipment in the channel quality of first community, and first network equipment belongs to first community.

Optionally, it after second channel quality information is sent to first network equipment by second network equipment, can also connect The precoding vector that first network equipment is sent is received, under second network equipment is estimated according to reference pilot signal and precoding vector Reception power of at least one user of one moment in second community simultaneously generates second channel quality information.

The information transferring method that the embodiment of the present invention provides obtains second channel quality letter by second network equipment Breath, and second channel quality information is sent to first network equipment, so that first network equipment is believed according to the first channel quality Breath and second channel quality information determine precoding vector, receive the precoding vector that first network equipment is sent.Because true Determine to can reduce when information is sent with reference to second channel quality information and produce other users equipment during precoding vector Raw signal interference solves user equipment in communication network and transmits matter to information to the signal interference that other users equipment generates The problem of amount is affected.

Based on the corresponding embodiment of above-mentioned Fig. 1 and Fig. 2, another embodiment of the present invention provides a kind of information transferring method, Applied to first network equipment, second network equipment and at least one user equipment, optionally, first network equipment belongs to first Cell, second network equipment belong to second community, and first community is the serving cell of at least one user equipment, and second community is The adjacent cell of at least one user equipment, further alternative, first network equipment and second network equipment can be base station, join According to shown in Fig. 3, comprising the following steps:

301, at least one user equipment sends reference pilot signal to first network equipment and second network equipment.

302, first network equipment generates the first channel quality information.

It optionally, can basis after first network equipment receives the reference pilot signal that at least one user equipment is sent The reference pilot signal that at least one user equipment is sent estimates reception power of at least one user equipment in first community And generate the first channel quality information.

Optionally, referring to the description of step 202 in the corresponding embodiment of Fig. 2, first network equipment can also be according at least The precoding vector of reference pilot signal and previous moment that one user equipment is sent estimates at least one user equipment the Reception power in one cell.

303, first network equipment receives the second channel quality information that second network equipment is sent.

Optionally, after second network equipment receives the reference pilot signal that at least one user equipment is sent, according at least The reference pilot signal that one user equipment is sent estimates at least one user equipment in the power of second community internal transmission information And generate second channel quality information.

Optionally, the reference pilot signal and previous that second network equipment can also be sent according at least one user equipment The precoding vector at moment estimates reception power of at least one user equipment in second community.

304, first network equipment determines precoding vector according to the first channel quality information and second channel quality information.

Specific optional, matrix A and matrix B are substituted into the first formula and precoding vector are calculated by first network equipment, Matrix A is channel quality estimation matrix of at least one user equipment in first community, and matrix B is that at least one user equipment exists The channel quality estimation matrix of second community.

First formula is

Wherein, F is precoding vector, and U, which is that first network equipment is maximum on I subcarrier when adjacent area interference is minimum, to be received The estimated value of the sum of power, i are subcarrier number, and 1≤i≤I.Specifically, tr [] is the mark for seeking matrix, []^HIt is to matrix Transposition conjugater transformation is carried out, | | | |_FTo seek norm of matrix, AF represents matrix A and is multiplied with vector F, BF represent matrix B with to F is measured to be multiplied.

It is further alternative, precoding vector F=[f₁ f₂ … f_N]^T, (0 < | f₁|,|f₂|…|f_N|≤1), N is positive Integer, it is preferred that N is the number of transmission antennas of single user's equipment, f_n(1≤n≤N) indicates at least one user equipment Precoding vector on n-th of transmitting antenna of one cell.First network equipment section (0,1] in be arranged according to preset step-length Code word f_n(1≤n≤N), n are positive integer, f_nFor plural number.By the code word f of setting_nIt substitutes into the first formula and calculates adjacent area interference minimum When the first user equipment the sum of maximal received power on I subcarrier estimated value U, will be so that the maximum code word f of U value_n Precoding vector F is formed, it is of course also possible to be configured with other methods to code word, the present invention is without limitation.It is preferred that , it can be grouped with sub-carrier, the subcarrier in same group uses identical precoding vector, can reduce meter in this way Calculate the time of U.

Specific optional, in the first application scenarios, at least one user equipment includes the first user equipment, is applied to CoMP technology, referring to shown in Fig. 4, in application scenarios shown in Fig. 4, first network equipment and second network equipment are all to first User equipment sends or receives information to complete the first user equipment transmitting uplink data or downlink data transmission.It is shown in Fig. 4 In application scenarios out, first community is the serving cell of the first user equipment, and second community is the cooperation of the first user equipment Cell.

Optionally, first network equipment and second network equipment obtain the first user equipment in first community and second respectively The Reference Signal Received Power (Reference Signal Receiving Power, RSRP) of cell, when the first user equipment In the RSRP of first community and the first user equipment when the difference of the RSRP of second community is less than first threshold, illustrate that second is small Area can be used as cooperation cell and the first user equipment carries out information transmission.Meanwhile when the first user equipment is in first community When RSRP is greater than second threshold, illustrate that the first user equipment is met the requirements in the quality that first community information is transmitted, at this point, due to Received signal power of first user equipment in first community is sufficiently high, so not needing to carry out CoMP transmission.But due to First user equipment illustrates the first user equipment to second community in the RSRP difference of first community and second community and very little Interference signal is also very strong, this just needs to inhibit the first user equipment to the signal interference of second community.Certain first threshold and the The specific value of two threshold values is set according to actual conditions, and the present invention is with no restrictions.Specifically, in application scenarios shown in Fig. 4:

First channel quality information includes

Wherein, A is channel quality estimation matrix of first user equipment in first community, H_nm,0,i(1≤n≤N, 1≤n≤ M and n, m are positive integer) it is m-th receiving antenna of first user equipment on i-th of subcarrier of first community corresponding the Channel estimation value on n transmitting antenna, N are single user's equipment number of transmission antennas, and M is single subdistrict receiving antenna quantity And M >=N, i are subcarrier number.

Second channel quality information includes

Wherein, B is channel quality estimation matrix of first user equipment in second community, H_nm,1,i(1≤n≤N, 1≤n≤ M and n, m are integer) it is m-th receiving antenna corresponding n-th of first user equipment on i-th of subcarrier of second community Channel estimation value on a transmitting antenna, N are the number of transmission antennas of single user's equipment, and M is the receiving antenna of single subdistrict Quantity and M >=N, i are subcarrier number.

Precoding vector is F=[f_1i f_2i … f_Ni]^T, (0 < | f_1i|,|f_2i|…|f_Ni|≤1), f_ni(1≤n≤N) table Show precoding vector of first user equipment on i-th of subcarrier of n-th of transmitting antenna of first community, f_niFor plural number.

Or it is optional, in second of application scenarios, at least one user equipment includes the first user equipment and second User equipment is applied to VMIMO technology, referring to Figure 5.In application scenarios shown in Fig. 5, the first user equipment and second User equipment shares physical resource and first network equipment carries out information transmission and the first user equipment and second user equipment exists Identical frequency range and period send different information.Specifically, in application scenarios shown in Fig. 5:

State the first channel quality information packet

Wherein, A is the channel quality estimation matrix of the first user equipment and second user equipment in first community, H_nm,00,i (1≤n≤N, 1≤n≤M and n, m are positive integer) is m-th of the first user equipment on i-th of subcarrier of first community Channel estimation value on corresponding n-th of the transmitting antenna of receiving antenna, H_nm,01,i(1≤n≤N, 1≤n≤M and n, m are integer) It is second user equipment on corresponding n-th of the transmitting antenna of m-th of receiving antenna on i-th of subcarrier of first community Channel estimation value, N are the number of transmission antennas of single user's equipment, and M is the receiving antenna quantity of single subdistrict and M >=2N, i are Subcarrier number.

Second channel quality information packet

Wherein, B is the channel quality estimation matrix of the first user equipment and second user equipment in second community, H_nm,10,i (1≤n≤N, 1≤n≤M and n, m are positive integer) is m-th of the first user equipment on i-th of subcarrier of second community Channel estimation value on corresponding n-th of the transmitting antenna of receiving antenna, H_nm,11,i(1≤n≤N, 1≤n≤M and n, m are integer) It is second user equipment on corresponding n-th of the transmitting antenna of m-th of receiving antenna on i-th of subcarrier of second community Channel estimation value, N are the number of transmission antennas of single user's equipment, and M is the receiving antenna quantity of single subdistrict and M >=2N, i are Subcarrier number.

Precoding vector is

F=[f_01,i f_02,i … f_0N,i f_11,i f_12,i … f_{1N, i}]^T, (0 < | f_{01, i}|…|f_{0N, i}|, | f_{11, i}|…| f_{1N, i}|≤1), f_0n,i(1≤n≤N) indicates the first user equipment in i-th of subcarrier of n-th of transmitting antenna of first community On precoding vector, f_1n,i(1≤n≤N) indicates second user equipment at i-th of n-th of transmitting antenna of first community Precoding vector on subcarrier, f_0n,i, f_1n,iIt is all plural number.

Certainly, it is merely illustrative two kinds of applicable application scenarios of the present invention herein, does not represent the present invention and is only applicable to Both application scenarios.

305, precoding vector is sent at least one user equipment by first network equipment.

Optionally, first network equipment can send information at least one user equipment according to precoding vector, or Receive the information that at least one user equipment is sent according to precoding vector.

Further alternative, when the first user sends information to the first user equipment, the first user equipment is according to prelisting The concrete meaning of each code word adjusts transmitting signal in code vector, illustratively, for the code word f of precoding vector F_0n,i(1 ≤ n≤N), the first user equipment is by the transmitting signal S on i-th of subcarrier of n-th of transmitting antenna of the first user equipment_iRoot According to code word f_0n,iIt is adjusted, it is preferred that by S_iMultiplied by f_0n,i, in this way, user equipment can adjust each transmitting antenna Transmission power and phase on each subcarrier.

Optionally, precoding vector can also be sent to second network equipment by first network equipment.

In conjunction with the corresponding embodiment of above-mentioned Fig. 1 and Fig. 3, the embodiment of the present invention provides a kind of first network equipment, for holding Information transferring method described in the corresponding embodiment of the above-mentioned Fig. 1 and Fig. 3 of row, referring to shown in Fig. 6, the first network equipment 60 It include: acquiring unit 601, coding unit 602, Transmit-Receive Unit 603.

Wherein, acquiring unit 601, for obtaining the first channel quality information and second channel quality information, first network Equipment belongs to first community, and the first channel quality information is used to indicate at least one user equipment in the channel matter of first community Amount, second channel quality information are used to indicate at least one user equipment in the channel quality of second community.

Coding unit 602, the first channel quality information and second channel quality letter for being obtained according to acquiring unit 601 It ceases and determines precoding vector.

Transmit-Receive Unit 603, the precoding vector for generating according to coding unit 602 are sent at least one user equipment Information.

Alternatively, Transmit-Receive Unit 603, the precoding vector for generating coding unit 602 is sent at least one user Equipment simultaneously receives the information that at least one user equipment is sent according to precoding vector.

Optionally, coding unit 602, specifically for by matrix A and matrix B substitute into the first formula be calculated precoding to Amount, matrix A are channel quality estimation matrix of at least one user equipment in first community, and matrix B is that at least one user sets The standby channel quality estimation matrix in second community.

First formula is

Wherein, F is precoding vector, and U, which is that first network equipment is maximum on I subcarrier when adjacent area interference is minimum, to be received The estimated value of the sum of power, i are subcarrier number, and 1≤i≤I.

Optionally, precoding vector F=[f₁ f₂ … f_N]^T, (0 < | f₁|,|f₂|…|f_N|≤1), N is positive integer.

Coding unit 602, be specifically used for section (0,1] according to preset step-length be arranged code word f_n(1≤n≤N), n is Positive integer, f_nFor plural number, by the code word f of setting_nIt substitutes into the first formula and calculates estimation of maximum power value U, it will be so that maximum power be estimated The maximum code word f of evaluation U value_nForm precoding vector F.

Optionally, in a kind of application scenarios, referring to application scenarios shown in Fig. 4, at least one user equipment includes the One user equipment.

First channel quality information includes

Wherein, A is channel quality estimation matrix of first user equipment in first community, H_nm,0,i(1≤n≤N, 1≤n≤ M and n, m are integer) it is that the first user equipment is n-th corresponding in m-th of receiving antenna of i-th of subcarrier of first community Transmitting antenna upper signal channel estimated value, N are the number of transmission antennas of single user's equipment, and M is the receiving antenna quantity of single subdistrict And M >=N, i are subcarrier number.

Second channel quality information includes

Wherein, B is channel quality estimation matrix of first user equipment in second community, H_nm,1,i(1≤n≤N, 1≤n≤ M and n, m are integer) it is m-th receiving antenna corresponding n-th of first user equipment in i-th of subcarrier of second community A transmitting antenna upper signal channel estimated value, N are the number of transmission antennas of single user's equipment, and M is the receiving antenna number of single subdistrict It measures and M >=N, i is subcarrier number.

Optionally, in another application scenarios, application scenarios referring to Figure 5, at least one user equipment includes First user equipment and second user equipment.

First channel quality information packet

Wherein, A is the channel quality estimation matrix of the first user equipment and second user equipment in first community, H_nm,00,i (1≤n≤N, 1≤n≤M and n, m are integer) is m-th reception of first user equipment in i-th of subcarrier of first community Corresponding n-th of transmitting antenna upper signal channel estimated value of antenna, H_nm,01,i(1≤n≤N, 1≤n≤M and n, m are integer) is second M-th receiving antenna corresponding n-th transmitting antenna upper signal channel estimation of the user equipment in i-th of subcarrier of first community Value, N are the number of transmission antennas of single user's equipment, and M is the receiving antenna quantity of single subdistrict and M >=2N, i are that subcarrier is compiled Number.

Second channel quality information packet

Wherein, B is the channel quality estimation matrix of the first user equipment and second user equipment in second community, H_nm,10,i (1≤n≤N, 1≤n≤M and n, m are integer) is m-th reception of first user equipment in i-th of subcarrier of second community Corresponding n-th of transmitting antenna upper signal channel estimated value of antenna, H_nm,11,i(1≤n≤N, 1≤n≤M and n, m are integer) is second M-th receiving antenna corresponding n-th transmitting antenna upper signal channel estimation of the user equipment in i-th of subcarrier of second community Value, N are the number of transmission antennas of single user's equipment, and M is the receiving antenna quantity of single subdistrict and M >=2N, i are that subcarrier is compiled Number.

Precoding vector is

Optionally, acquiring unit 601 includes the first receiving subelement 6011, the second receiving subelement 6012 and estimation unit 6013。

First receiving subelement 6011, for receiving the reference pilot signal of at least one user equipment transmission.

Subelement 6013 is estimated, for what is sent according at least one the received user equipment of the first receiving subelement 6011 Reference pilot signal estimates at least one user equipment in the power of first community internal transmission information and generates the first channel quality Information.

Second receiving subelement 6012, for receiving the second channel quality information of second network equipment transmission, the second net Network equipment belongs to second community.

The first network equipment that the embodiment of the present invention provides, by obtaining the first channel quality information and second channel matter Measure information, precoding vector is determined according to the first channel quality information and second channel quality information, according to precoding vector to At least one user equipment sends information, alternatively, precoding vector is sent at least one user equipment and receives at least one The information that a user equipment is sent according to precoding vector.Because with reference to second channel matter during determining precoding vector Information is measured, the signal interference generated when information is sent to other users equipment is can reduce, solves user in communication network and set The problem of standby signal interference generated to other users equipment is affected to information transmission quality.

In conjunction with the corresponding embodiment of above-mentioned Fig. 2 and Fig. 3, the embodiment of the present invention provides a kind of second network equipment, for holding Information transferring method described in the corresponding embodiment of the above-mentioned Fig. 2 and Fig. 3 of row, referring to shown in Fig. 7, second network equipment 70 Including receiving unit 701, estimation unit 702 and transmission unit 703.

Wherein, receiving unit 701, for receiving the reference pilot signal of at least one user equipment transmission.

Estimation unit 702, for estimating at least one user second according to the received reference pilot signal of receiving unit Reception power in cell simultaneously generates second channel quality information.

Transmission unit 703, for second channel quality information to be sent to first network equipment, so as to first network equipment Determine that precoding vector, second channel quality information are used to indicate according to second channel quality information and the first channel quality information For at least one user equipment in the channel quality of second community, second network equipment belongs to second community, the first channel quality letter Breath is used to indicate at least one user equipment in the channel quality of first community, and first network equipment belongs to first community.

Optionally, in a kind of application scenarios, referring to application scenarios shown in Fig. 4, at least one user equipment includes the One user equipment,

Second channel quality information includes

Wherein, B is channel quality estimation matrix of first user equipment in second community, H_nm,1,i(1≤n≤N, 1≤n≤ M and n, m are integer) it is that the first user equipment is n-th corresponding in m-th of receiving antenna of i-th of subcarrier of second community Transmitting antenna upper signal channel estimated value, N are the number of transmission antennas of single user's equipment, and M is the receiving antenna quantity of single subdistrict And M >=N, i are subcarrier number.

Optionally, in another application scenarios, application scenarios referring to Figure 5, at least one user equipment includes First user equipment and second user equipment,

Second channel quality information packet

Second network equipment that the embodiment of the present invention provides is believed by obtaining second channel quality information, and by second Road quality information is sent to first network equipment, so that first network equipment is according to the first channel quality information and second channel matter Amount information determines precoding vector, receives the precoding vector that first network equipment is sent.Because determining precoding vector In the process with reference to second channel quality information, the signal interference generated when information is sent to other users equipment can reduce, Solve what the signal interference that user equipment generates other users equipment in communication network was affected to information transmission quality Problem.

In conjunction with the corresponding embodiment of above-mentioned Fig. 1 and Fig. 3, another embodiment of the present invention provides a kind of first network equipment, use In executing information transferring method described in the corresponding embodiment of above-mentioned Fig. 1 and Fig. 3, referring to shown in Fig. 8, which can be embedding Enter or inherently micro process computer, such as: general purpose computer, customization machine, mobile phone terminal or purl machine etc. are portable to be set Standby, which includes: at least one processor 801, memory 802, bus 803, transmitter 804 and receiver 805, which connects by bus 803 and completes phase Communication between mutually.

It is total that the bus 803 can be ISA (Industry Standard Architecture, industry standard architecture) Line, PCI (Peripheral CoMPonent, external equipment interconnection) bus or EISA (Extended Industry Standard Architecture, extended industry-standard architecture) bus etc..The bus 803 can be divided into address bus, Data/address bus, control bus etc..Only to be indicated with a thick line convenient for indicating, in Fig. 8, it is not intended that an only bus or A type of bus.Wherein:

Memory 802 is used to execute the application code of the present invention program, executes the application program generation of the present invention program Code saves in memory, and execution is controlled by processor 801.

The memory can be read only memory ROM or can store the other kinds of static storage of static information and instruction Equipment, random access memory ram or the other kinds of dynamic memory that can store information and instruction, are also possible to electricity Erasable programmable read-only memory EEPROM, CD-ROM CD-ROM or other optical disc storages, optical disc storage (including squeezed light Dish, laser disc, optical disc, Digital Versatile Disc, Blu-ray Disc etc.), magnetic disk storage medium or other magnetic storage apparatus or energy Be enough in carrying or storage have instruction or data structure form desired program code and can by computer access times What his medium, but not limited to this.These memories are connected by bus with processor.

Processor 801 may be a central processing unit 801 (Central Processing Unit, referred to as CPU), Either specific integrated circuit (Application Specific Integrated Circuit, referred to as ASIC), either It is configured to implement one or more integrated circuits of the embodiment of the present invention.

Processor 801, for calling the program code in memory 802, in a kind of possible embodiment, when above-mentioned When application program is executed by the processor 801, implement function such as.

Processor 801 belongs to for obtaining the first channel quality information and second channel quality information, first network equipment First community, the first channel quality information are used to indicate at least one user equipment in the channel quality of first community, the second letter Road quality information is used to indicate at least one user equipment in the channel quality of second community.

Processor 801 is also used to determine precoding vector according to the first channel quality information and second channel quality information.

Processor 801 is also used to send by transmitter 804 at least one user equipment according to precoding vector and believe Breath, alternatively, processor 801, is also used to that precoding vector is sent at least one user equipment by transmitter 804 and passes through Receiver 805 receives the information that at least one user equipment is sent according to precoding vector.

Optionally, processor 801, specifically for by matrix A and matrix B substitute into the first formula be calculated precoding to Amount, matrix A are channel quality estimation matrix of at least one user equipment in first community, and matrix B is that at least one user sets The standby channel quality estimation matrix in second community.

First formula is

Processor 801, be specifically used for section (0,1] according to preset step-length be arranged code word f_n(1≤n≤N), n is positive Integer, f_nFor plural number, by the code word f of setting_nIt substitutes into the first formula and calculates estimation of maximum power value U, it will be so that estimation of maximum power The maximum code word f of value U value_nForm precoding vector F.

First channel quality information includes

Second channel quality information includes

First channel quality information packet

Second channel quality information packet

Precoding vector is

Optionally, processor 801, specifically for receiving the reference that at least one user equipment is sent by receiver 805 Pilot signal estimates at least one user equipment in first community according to the reference pilot signal that at least one user equipment is sent The power of internal transmission information simultaneously generates the first channel quality information.

Processor 801 is believed specifically for receiving the second channel quality that second network equipment is sent by receiver 805 Breath, second network equipment belong to second community.

In conjunction with the corresponding embodiment of above-mentioned Fig. 2 and Fig. 3, another embodiment of the present invention provides a kind of second network equipments, use In executing information transferring method described in the corresponding embodiment of above-mentioned Fig. 2 and Fig. 3, referring to shown in Fig. 9, which can be embedding Enter or inherently micro process computer, such as: general purpose computer, customization machine, mobile phone terminal or purl machine etc. are portable to be set Standby, which includes: at least one processor 901, memory 902, bus 903, transmitter 904 and receiver 905, which connects by bus 903 and completes phase Communication between mutually.

It is total that the bus 903 can be ISA (Industry Standard Architecture, industry standard architecture) Line, PCI (Peripheral CoMPonent, external equipment interconnection) bus or EISA (Extended Industry Standard Architecture, extended industry-standard architecture) bus etc..The bus 903 can be divided into address bus, Data/address bus, control bus etc..Only to be indicated with a thick line convenient for indicating, in Fig. 9, it is not intended that an only bus or A type of bus.Wherein:

Memory 902 is used to execute the application code of the present invention program, executes the application program generation of the present invention program Code saves in memory, and execution is controlled by processor 901.

Processor 901 may be a central processing unit 901 (Central Processing Unit, referred to as CPU), Either specific integrated circuit (Application Specific Integrated Circuit, referred to as ASIC), either It is configured to implement one or more integrated circuits of the embodiment of the present invention.

Processor 901, for calling the program code in memory 902, in a kind of possible embodiment, when above-mentioned When application program is executed by the processor 901, implement function such as.

Processor 901, for receiving the reference pilot signal that at least one user equipment is sent by receiver 905.

Processor 901 is also used to estimate according to reference pilot signal reception function of at least one user in second community Rate simultaneously generates second channel quality information.

Processor 901 is also used to that second channel quality information is sent to first network equipment by transmitter 904, with Just first network equipment determines precoding vector, second channel matter according to second channel quality information and the first channel quality information Amount information is used to indicate at least one user equipment in the channel quality of second community, and second network equipment belongs to second community, First channel quality information is used to indicate at least one user equipment in the channel quality of first community, and first network equipment belongs to First community.

Second channel quality information includes

Second channel quality information packet

The embodiment of the present invention provides a kind of Radio Network System, and referring to Fig.1 shown in 0, which includes the One network equipment 1011, second network equipment 1012 and at least one user equipment 1013.

Wherein, first network equipment 1011 is first network equipment described in the corresponding embodiment of Fig. 6, and the second network is set Standby 1012 be second network equipment described in the corresponding embodiment of Fig. 7.

Alternatively, first network equipment 1011 is first network equipment described in the corresponding embodiment of Fig. 8, the second network is set Standby 1012 be second network equipment described in the corresponding embodiment of Fig. 9.

The Radio Network System that the embodiment of the present invention provides obtains the first channel quality information by first network equipment And second channel quality information, precoding vector is determined according to the first channel quality information and second channel quality information, according to Precoding vector sends information at least one user equipment, alternatively, precoding vector is sent at least one user equipment And receive the information that at least one user equipment is sent according to precoding vector.Because being referred to during determining precoding vector Second channel quality information can reduce the signal interference generated when information is sent to other users equipment, solve communication The problem of signal interference that user equipment generates other users equipment in network is affected to information transmission quality.

Through the above description of the embodiments, it is apparent to those skilled in the art that the present invention can be with It is realized with hardware realization or firmware realization or their combination mode.It when implemented in software, can be by above-mentioned function Storage in computer-readable medium or as on computer-readable medium one or more instructions or code transmitted.Meter Calculation machine readable medium includes computer storage media and communication media, and wherein communication media includes convenient for from a place to another Any medium of a place transmission computer program.Storage medium can be any usable medium that computer can access.With For this but be not limited to: computer-readable medium may include random access memory (Random Access Memory, RAM), only Rdma read (Read Only Memory, ROM), Electrically Erasable Programmable Read-Only Memory (Electrically Erasable Programmable Read Only Memory, EEPROM), CD-ROM (CoMPact Disc Read Only Memory, CD-ROM) or other optical disc storages, magnetic disk storage medium or other magnetic storage apparatus or can be used in carry or store tool There is the desired program code of instruction or data structure form and can be by any other medium of computer access.Furthermore.Appoint What connection appropriate can become computer-readable medium.For example, if software is using coaxial cable, optical fiber cable, multiple twin Line, digital subscriber line (Digital Subscriber Line, DSL) or such as infrared ray, radio and microwave etc Wireless technology is transmitted from website, server or other remote sources, then coaxial cable, optical fiber cable, twisted pair, DSL or The wireless technology of person's such as infrared ray, wireless and microwave etc includes in the fixing of affiliated medium.As used in the present invention, Plate and dish includes compression optical disc (CoMPact Disc, CD), laser disc, optical disc, Digital Versatile Disc (Digital Versatile Disc, DVD), floppy disk and Blu-ray Disc, the usually magnetic replicate data of which disk, and dish is then with laser come light Replicate data.Combination above should also be as including within the protection scope of computer-readable medium.

The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain Lid is within protection scope of the present invention.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. a kind of first network equipment characterized by comprising

Acquiring unit belongs to for obtaining the first channel quality information and second channel quality information, the first network equipment First community, first channel quality information are used to indicate at least one user equipment in the channel matter of the first community Amount, the second channel quality information are used to indicate at least one described user equipment in the channel quality of second community；

Coding unit, first channel quality information and the second channel quality for being obtained according to the acquiring unit Information determines precoding vector；

Transmit-Receive Unit, the precoding vector for generating according to the coding unit are sent out at least one described user equipment It delivers letters breath；

Alternatively, the Transmit-Receive Unit, the precoding vector for generating the coding unit is sent to described at least one A user equipment simultaneously receives the information that at least one described user equipment is sent according to the precoding vector；

The precoding vector, institute is calculated specifically for matrix A and matrix B are substituted into the first formula in the coding unit Stating matrix A is at least one described user equipment in the channel quality estimation matrix of the first community, and the matrix B is described Channel quality estimation matrix of at least one user equipment in the second community；

First formula is

Wherein, F is the precoding vector, and U is that the first network equipment is maximum on I subcarrier when adjacent area interference is minimum Receive the estimated value of the sum of power, i is subcarrier number, and 1≤i≤I；

Precoding vector F=[the f₁ f₂…f_N]^T, (0 < | f₁|,f₂|…f_N|≤1), N is positive integer；

The coding unit is specifically used for setting code word f_n(1≤n≤N), n are positive integer, f_nFor plural number；By the code word f of setting_n It substitutes into first formula and calculates U, it will be so that the maximum code word f of U value_nForm the precoding vector F.

2. equipment according to claim 1, which is characterized in that

The coding unit, be specifically used for section (0,1] according to preset step-length be arranged code word f_n。

3. equipment according to claim 1, which is characterized in that at least one described user equipment includes that the first user sets It is standby；

First channel quality information includes

Wherein, A is channel quality estimation matrix of first user equipment in the first community, H_nm,0,i(1≤n≤L, 1 ≤ m≤M and n, m are integer) it is first user equipment in m-th of reception day of i-th of subcarrier of the first community Corresponding n-th of transmitting antenna upper signal channel estimated value of line, L are the number of transmission antennas of single user's equipment, and M is single subdistrict Receiving antenna quantity and M >=L, i are subcarrier number；

The second channel quality information includes

Wherein, B is channel quality estimation matrix of first user equipment in the second community, H_nm,1,i(1≤n≤L, 1 ≤ m≤M and n, m are integer) it is m-th reception of first user equipment in i-th of subcarrier of the second community Corresponding n-th of transmitting antenna upper signal channel estimated value of antenna, L are the number of transmission antennas of single user's equipment, and M is single subdistrict Receiving antenna quantity and M >=L, i be subcarrier number；

The precoding vector is F=[f_1i f_2i…f_Ni]^T, (0 < | f_1i|,f_2i|…|f_Ni|≤1), f_ni(1≤n≤N) is indicated Precoding vector of first user equipment on i-th of subcarrier of n-th of transmitting antenna of the first community, f_niFor Plural number.

4. equipment according to claim 1, which is characterized in that at least one described user equipment includes the first user equipment And second user equipment；

The first channel quality information packet

Wherein, A is the channel quality estimation square of first user equipment and the second user equipment in the first community Battle array, H_nm,00,i(1≤n≤L, 1≤m≤M and n, m are integer) is first user equipment at i-th of the first community Corresponding n-th of transmitting antenna upper signal channel estimated value of m-th of receiving antenna of subcarrier, H_nm,01,i(1≤n≤L, 1≤m≤M and N, m are integer) it is that the second user equipment is corresponding in m-th of receiving antenna of i-th of subcarrier of the first community N-th of transmitting antenna upper signal channel estimated value, L are the number of transmission antennas of single user's equipment, and M is the receiving antenna of single subdistrict Quantity and M >=2L, i are subcarrier number；

The second channel quality information packet

Wherein, B is the channel quality estimation square of first user equipment and the second user equipment in the second community Battle array, H_nm,10,i(1≤n≤L, 1≤m≤M and n, m are integer) is first user equipment at i-th of the second community Corresponding n-th of transmitting antenna upper signal channel estimated value of m-th of receiving antenna of subcarrier, H_nm,11,i(1≤n≤L, 1≤m≤M and N, m are integer) it is that the second user equipment is corresponding in m-th of receiving antenna of i-th of subcarrier of the second community N-th of transmitting antenna upper signal channel estimated value, L are the number of transmission antennas of single user's equipment, and M is the receiving antenna of single subdistrict Quantity and M >=2L, i are subcarrier number；

The precoding vector is

F=[f_01,i f_02,i … f_0N,i f_11,i f_12,i … f_1N,i]^T, (0 < | f_01,i|…|f_0N,i|,|f_11,i|…|f_1N,i|≤ 1), f_0n,i(1≤n≤N) indicates that first user equipment is carried in i-th of son of n-th of transmitting antenna of the first community Precoding vector on wave, f_1n,i(1≤n≤N) indicates the second user equipment in n-th of transmitting day of the first community Precoding vector on i-th of subcarrier of line, f_0n,i, f_1n,iIt is all plural number.

5. equipment according to claim 4, which is characterized in that

The acquiring unit includes the first receiving subelement, the reference pilot sent for receiving at least one described user equipment Signal；

The acquiring unit further includes estimation subelement, for according to first receiving subelement it is received it is described at least one The reference pilot signal that user equipment is sent estimates that at least one described user equipment transmits letter in the first community The power of breath simultaneously generates first channel quality information.

6. equipment according to claim 1-5, which is characterized in that

The acquiring unit further includes the second receiving subelement, for receiving the second channel matter of second network equipment transmission Information is measured, second network equipment belongs to second community.

7. a kind of second network equipment characterized by comprising

Estimation unit, for estimating that at least one described user exists according to the received reference pilot signal of the receiving unit Reception power in second community simultaneously generates second channel quality information；

Transmission unit, for the second channel quality information to be sent to first network equipment, so that the first network is set It is standby that precoding vector, the second channel quality letter are determined according to the second channel quality information and the first channel quality information Breath is used to indicate at least one described user equipment in the channel quality of second community, and it is small that second network equipment belongs to second Area, first channel quality information are used to indicate at least one described user equipment in the channel quality of first community, described First network equipment belongs to first community；The first network equipment is according to first channel quality information and second letter Road quality information determines precoding vector, comprising: matrix A and matrix B are substituted into the first formula and calculated by the first network equipment The precoding vector is obtained, the matrix A is that at least one described user equipment is estimated in the channel quality of the first community Matrix is counted, the matrix B is channel quality estimation matrix of at least one the described user equipment in the second community；Described One formula isWherein, F is the precoding vector, and U is dry for adjacent area The estimated value of described first network equipment the sum of maximal received power on I subcarrier when minimum is disturbed, i is subcarrier number, And 1≤i≤I；The precoding vector

F=[f₁ f₂…f_N]^T, (0 < | f₁|,|f₂|…|f_N|≤1), N is positive integer；

Alternatively, the first network equipment determines in advance according to first channel quality information and the second channel quality information Coding vector, comprising: code word f is arranged in the first network equipment_n(1≤n≤N), n are positive integer, f_nFor plural number；By setting Code word f_nIt substitutes into first formula and calculates U, it will be so that the maximum code word f of U value_nForm the precoding vector F.

8. equipment according to claim 7, which is characterized in that at least one described user equipment includes that the first user sets It is standby,

The second channel quality information includes

Wherein, B is channel quality estimation matrix of first user equipment in the second community, H_nm,1,i(1≤n≤L, 1 ≤ m≤M and n, m are integer) it is first user equipment in m-th of reception day of i-th of subcarrier of the second community Corresponding n-th of transmitting antenna upper signal channel estimated value of line, L are the number of transmission antennas of single user's equipment, and M is single subdistrict Receiving antenna quantity and M >=L, i are subcarrier number.

9. equipment according to claim 7, which is characterized in that at least one described user equipment includes the first user equipment And second user equipment,

The second channel quality information packet

Wherein, B is the channel quality estimation square of first user equipment and the second user equipment in the second community Battle array, H_nm,10,i(1≤n≤L, 1≤m≤M and n, m are integer) is first user equipment at i-th of the second community Corresponding n-th of transmitting antenna upper signal channel estimated value of m-th of receiving antenna of subcarrier, H_nm,11,i(1≤n≤L, 1≤m≤M and N, m are integer) it is that the second user equipment is corresponding in m-th of receiving antenna of i-th of subcarrier of the second community N-th of transmitting antenna upper signal channel estimated value, L are the number of transmission antennas of single user's equipment, and M is the receiving antenna of single subdistrict Quantity and M >=2L, i are subcarrier number.

10. a kind of first network equipment, which is characterized in that described including processor, memory, bus, transmitter and receiver Processor, the memory, the transmitter and the receiver are connected with each other by the bus；

Wherein, the processor is set for obtaining the first channel quality information and second channel quality information, the first network Standby to belong to first community, first channel quality information is used to indicate at least one user equipment in the letter of the first community Road quality, the second channel quality information are used to indicate at least one described user equipment in the channel quality of second community；

The processor is also used to determine precoding according to first channel quality information and the second channel quality information Vector；

The processor is also used to send out by the transmitter at least one described user equipment according to the precoding vector Deliver letters breath, alternatively, the processor, be also used to by the transmitter by the precoding vector be sent to it is described at least one User equipment simultaneously receives the information that at least one described user equipment is sent according to the precoding vector by the receiver；

The precoding vector is calculated specifically for matrix A and matrix B are substituted into the first formula in the processor, described Matrix A is channel quality estimation matrix of at least one the described user equipment in the first community, the matrix B be it is described extremely Channel quality estimation matrix of few user equipment in the second community；

First formula is

Precoding vector F=[the f₁ f₂…f_N]^T, (0 < | f₁|,|f₂|…|f_N|≤1), N is positive integer；

The processor is specifically used for setting code word f_n(1≤n≤N), n are positive integer, f_nFor plural number；By the code word f of setting_nGeneration Enter first formula and calculates U, it will be so that the maximum code word f of U value_nForm the precoding vector F.

11. equipment according to claim 10, which is characterized in that

The processor, be specifically used for section (0,1] according to preset step-length be arranged code word f_n。

12. equipment according to claim 10, which is characterized in that at least one described user equipment includes that the first user sets It is standby；

First channel quality information includes

The second channel quality information includes

The precoding vector is F=[f_1i f_2i…f_Ni]^T, (0 < | f_1i|,|f_2i|…|f_Ni|≤1), f_ni(1≤n≤N) is indicated Precoding vector of first user equipment on i-th of subcarrier of n-th of transmitting antenna of the first community, f_niFor Plural number.

13. equipment according to claim 10, which is characterized in that at least one described user equipment includes that the first user sets Standby and second user equipment；

The first channel quality information packet

The second channel quality information packet

The precoding vector is

F=[f_01,i f_02,i…f_0N,i f_11,i f_12,i…f_1N,i]^T, (0 < | f_01,i|…|f_0N,i|,|f_11,i|…|f_1N,i|≤1), f_0n,i(1≤n≤N) indicates first user equipment on i-th of subcarrier of n-th of transmitting antenna of the first community Precoding vector, f_1n,i(1≤n≤N) indicates the second user equipment in n-th of transmitting antenna of the first community Precoding vector on i-th of subcarrier, f_0n,i, f_1n,iIt is all plural number.

14. equipment according to claim 13, which is characterized in that

The processor is believed specifically for receiving the reference pilot that at least one described user equipment is sent by the receiver Number, the reference pilot signal sent according at least one described user equipment estimates at least one described user equipment in institute It states the power of first community internal transmission information and generates first channel quality information.

15. the described in any item equipment of 0-14 according to claim 1, which is characterized in that

The processor is believed specifically for receiving the second channel quality that second network equipment is sent by the receiver Breath, second network equipment belong to second community.

16. a kind of second network equipment, which is characterized in that described including processor, memory, bus, transmitter and receiver Processor, the memory, the transmitter and the receiver are connected with each other by the bus；

Wherein, the processor, for receiving the reference pilot signal of at least one user equipment transmission by the receiver；

The processor is also used to estimate at least one user connecing in second community according to the reference pilot signal It receives power and generates second channel quality information；

The processor is also used to that the second channel quality information is sent to first network equipment by the transmitter, So that the first network equipment determines precoding vector according to the second channel quality information and the first channel quality information, The second channel quality information is used to indicate at least one described user equipment in the channel quality of second community, and described second The network equipment belongs to second community, and it is small first that first channel quality information is used to indicate at least one described user equipment The channel quality in area, the first network equipment belong to first community；The first network equipment is according to the first channel matter Amount information and the second channel quality information determine precoding vector, comprising: the first network equipment is by matrix A and matrix B substitutes into the first formula and the precoding vector is calculated, and the matrix A is at least one described user equipment described first The channel quality estimation matrix of cell, the matrix B are channel matter of at least one the described user equipment in the second community Measure estimated matrix；First formula isWherein, F is described pre- Coding vector, U are the estimation of described first network equipment the sum of maximal received power on I subcarrier when adjacent area interference is minimum Value, i are subcarrier number, and 1≤i≤I；Precoding vector F=[the f₁ f₂…f_N]^T, (0 < | f₁|,|f₂|…|f_N|≤ 1), N is positive integer；

17. equipment according to claim 16, which is characterized in that at least one described user equipment includes that the first user sets It is standby,

The second channel quality information includes

18. equipment according to claim 16, which is characterized in that at least one described user equipment includes that the first user sets Standby and second user equipment,

The second channel quality information includesWherein, B Channel quality estimation matrix for first user equipment and the second user equipment in the second community, H_nm,10,i(1 ≤ n≤L, 1≤m≤M and n, m are integer) it is m of first user equipment in i-th of subcarrier of the second community Corresponding n-th of transmitting antenna upper signal channel estimated value of a receiving antenna, H_nm,11,i(1≤n≤L, 1≤m≤M and n, m are integer) It is the second user equipment in m-th of receiving antenna corresponding n-th of transmitting day of i-th of subcarrier of the second community Line upper signal channel estimated value, L be single user's equipment number of transmission antennas, M be single subdistrict receiving antenna quantity and M >= 2L, i are subcarrier number.

19. a kind of information transferring method characterized by comprising

First network equipment obtains the first channel quality information, and the first network equipment belongs to first community, first letter Road quality information is used to indicate at least one user equipment in the channel quality of the first community；

The first network equipment obtains second channel quality information, the second channel quality information be used to indicate it is described at least Channel quality of one user equipment in second community；

The first network equipment determines precoding according to first channel quality information and the second channel quality information Vector；

The first network equipment sends information at least one described user equipment according to the precoding vector, alternatively, institute First network equipment is stated the precoding vector is sent at least one described user equipment and receives at least one described use The information that family equipment is sent according to the precoding vector；

The first network equipment determines precoding according to first channel quality information and the second channel quality information Vector, comprising:

Matrix A and matrix B are substituted into the first formula and the precoding vector, the matrix are calculated by the first network equipment A is channel quality estimation matrix of at least one the described user equipment in the first community, and the matrix B is described at least one Channel quality estimation matrix of a user equipment in the second community；First formula is

Precoding vector F=[the f₁ f₂…f_N]^T, (0 < ... | f₁|,|f₂|…|f_N|≤1), N is positive integer；

Alternatively,

Code word f is arranged in the first network equipment_n(1≤n≤N), n are positive integer, f_nFor plural number；

By the code word f of setting_nIt substitutes into first formula and calculates U, it will be so that the maximum code word f of U value_nForm the precoding Vector F.

20. according to the method for claim 19, which is characterized in that code word is arranged in the first network equipment, comprising:

The first network equipment section (0,1] according to preset step-length be arranged code word f_n。

21. according to the method for claim 19, which is characterized in that at least one described user equipment includes that the first user sets It is standby；

First channel quality information includes

The second channel quality information includes

22. according to the method for claim 19, which is characterized in that at least one described user equipment includes that the first user sets Standby and second user equipment；

The first channel quality information packet

The second channel quality information packet

The precoding vector is

23. according to the method for claim 22, which is characterized in that the first network equipment obtains the first channel quality letter Breath, comprising:

The first network equipment is described extremely according to the reference pilot signal estimation that at least one described user equipment is sent Lack a user equipment in the power of the first community internal transmission information and generates first channel quality information.

24. the described in any item methods of 9-23 according to claim 1, which is characterized in that the first network equipment obtains second Channel quality information, comprising:

The first network equipment receives the second channel quality information that second network equipment is sent, and second network is set It is standby to belong to second community.

25. a kind of information transferring method characterized by comprising

Second network equipment estimates at least one user connecing in second community according to the reference pilot signal It receives power and generates second channel quality information；

The second channel quality information is sent to first network equipment by second network equipment, so as to the first network Equipment determines precoding vector, the second channel quality according to the second channel quality information and the first channel quality information Information is used to indicate at least one described user equipment in the channel quality of second community, and second network equipment belongs to second Cell, first channel quality information are used to indicate the channel quality of at least one user equipment in first community, institute It states first network equipment and belongs to first community；The first network equipment is according to first channel quality information and described second Channel quality information determines precoding vector, comprising: matrix A and matrix B are substituted into the first formula meter by the first network equipment Calculation obtains the precoding vector, and the matrix A is channel quality of at least one the described user equipment in the first community Estimated matrix, the matrix B are channel quality estimation matrix of at least one the described user equipment in the second community；It is described First formula isWherein, F is the precoding vector, and U is adjacent area The estimated value of interference described first network equipment the sum of maximal received power on I subcarrier when minimum, i are subcarrier volume Number, and 1≤i≤I；The precoding vector

26. according to the method for claim 25, which is characterized in that at least one described user equipment includes that the first user sets It is standby,

The second channel quality information includes

27. according to the method for claim 25, which is characterized in that at least one described user equipment includes that the first user sets Standby and second user equipment,

The second channel quality information packet

28. a kind of Radio Network System, which is characterized in that including first network equipment, second network equipment and at least one use Family equipment；

Wherein, the first network equipment is first network equipment described in any one of claims 1-6, and second network is set It is standby to remove described in any item second network equipments of 7-9 for right；

Alternatively, the first network equipment is the described in any item first network equipment of claim 10-15, second network Equipment is that right will remove described in any item second network equipments of 16-18.