CN105634577A

CN105634577A - Method and device of calculating and feeding back channel quality indicator (CQI), and user scheduling method and device based on CQI

Info

Publication number: CN105634577A
Application number: CN201410624442.3A
Authority: CN
Inventors: 李迅; 罗庆霖
Original assignee: Alcatel Lucent Shanghai Bell Co Ltd
Current assignee: Nokia Shanghai Bell Co Ltd
Priority date: 2014-11-06
Filing date: 2014-11-06
Publication date: 2016-06-01
Anticipated expiration: 2034-11-06
Also published as: CN105634577B

Abstract

The present invention provides a method and device of calculating and feeding back a CQI, and a user scheduling method and device based on the CQI, and provides a method and device used for calculating and feeding back the channel station information (CSI) of a 3D channel in a user equipment of a wireless communication system, and a user scheduling method and device used for the 3D channel in a base station of the wireless communication system. Compared with the prior art, the method used for calculating and feeding back the CSI of the 3D channel in the user equipment of the wireless communication system can calculate and feed back in allusion to a horizontal channel and a vertical channel, and the user scheduling method used for the 3D channel in the base station of the wireless communication system can determine an MIMO mode based on the CSI feedback information received from the user equipment and in allusion to the horizontal channel and the vertical channel, and carries out the user pairing correspondingly, thereby realizing the effective user scheduling in the 3D channel.

Description

A kind of calculate and feedback CQI, the method and apparatus of user scheduling based on this CQI

Technical field

The present invention relates to wireless communication field, the CQI particularly for radio communication calculates and feedback field and user scheduling field.

Background technology

In LTE system, two dimension (2D) transmission has been widely studied and has adopted. Traditional aerial array forms wave beam with horizontally disposed at horizontal plane. In order to utilize the more spatial gain in three-dimensional (3D) space, 3D multiple-input and multiple-output (MIMO) channel propagation model has come into question in nearest 3GPP meeting and has modeled. In 3DMIMO channel, planar array antenna may be utilized to obtain vertical space and horizontal space gain. For 3DMIMO, propose many independent processing schemes based on vertical channel and horizontal channel, therefore how to calculate and feed back the CSI (ChannelStateInformation, channel condition information) of 3D channel, and be worth research based on this user scheduling carrying out 3D channel.

Summary of the invention

It is an object of the invention to provide a kind of in the subscriber equipment of wireless communication system for calculating and feed back the method and apparatus of CSI of 3D channel, and a kind of in the base station of wireless communication system for the method and apparatus of the user scheduling of 3D channel.

According to an aspect of the present invention, a kind of method being used for calculating and feed back the CSI of 3D channel in the subscriber equipment of wireless communication system is provided, wherein, described wireless communication system uses for 3D channel and is respectively used to the horizontal code book of horizontal channel and vertical channel and vertical code book, and the method includes:

-based on the channel information of described 3D channel, described horizontal code book and described vertical code book, it is determined that described subscriber equipment, be below denoted as subscriber equipment i, for horizontal channel pre-coding matrix instruction PMI_h,i, it is denoted as W in below equation_h,i;

-based on the channel information of described 3D channel, described horizontal code book and described vertical code book, it is determined that described subscriber equipment i is for the pre-coding matrix instruction PMI of vertical channel_v,i, it is denoted as W in below equation_v,i;

-based on the channel information of described 3D channel, described horizontal code book and described vertical code book, and based on described PMI_h,iAnd PMI_v,i, it is determined that described subscriber equipment i indicates BCI for the best partner of horizontal channel_h,i, it is denoted as W in below equation_h,j, in which it is assumed that this best partner being used for horizontal channel is subscriber equipment j;

-based on the channel information of described 3D channel, described horizontal code book and described vertical code book, and based on described PMI_h,iAnd PMI_v,i, it is determined that described subscriber equipment i indicates BCI for the best partner of vertical channel_v,i, it is denoted as W in below equation_v,j, in which it is assumed that this best partner being used for vertical channel is subscriber equipment j;

-based on described W_h,iAnd W_v,i, determine that described subscriber equipment i is under SU-MIMO pattern according to following formula

Wherein, �� (W_v,i,W_h,i) for W_h,iAnd W_v,iComposite function, OCI is other area interference, P_SUFor the signal power under SU-MIMO pattern, H_iChannel matrix for subscriber equipment i;

-based on described W_h,i��W_v,i��W_h,jAnd W_v,j, determine that described subscriber equipment i is under MU-MIMO pattern according to following formula

Wherein, �� (W_v,j,W_h,j) for W_h,jAnd W_v,jComposite function, P_MUFor the signal power under MU-MIMO pattern;

-described PMI will be indicated_h,i��PMI_v,i��BCI_h,i��BCI_v,i��AndInformation send to base station.

According to said method, wherein, also include:

-determine when being based only upon horizontal channel and being transmitted based on following formula

-determine when being based only upon vertical channel and being transmitted based on following formula

According to said method, wherein also include:

-basisAndDetermine the preferred dimension for carrying out space division multiplexing of this subscriber equipment i based on following formula, wherein said preferred dimension is horizontal dimensions or vertical dimensions:

WhenTime, it is determined that horizontal dimensions is preferred dimension, otherwise, it determines vertical dimensions is preferred dimension;

-when described preferred dimension is horizontal dimensions, willAsWhen described preferred dimension is vertical dimensions, willAs

-information indicating described preferred dimension is sent to base station;

-by described in instructionInformation send to base station.

According to said method, wherein, also include:

-by described in instructionAndInformation send to base station.

According to said method, wherein, also include:

Described in indicatingInformation send to base station.

According to said method, wherein, also include:

-amount R of the order distributing to this subscriber equipment i in horizontal territory will be indicated_h,iInformation send to base station;

-instruction is distributed in perpendicular domains the amount R of order of this subscriber equipment i_v,iInformation send to base station.

According to another aspect of the present invention, a kind of method for the user scheduling of 3D channel in the base station of wireless communication system is provided, wherein, the described horizontal code book of wireless communication system use and vertical codes are originally respectively used to horizontal channel and the vertical channel of this 3D channel, and the method includes:

-from subscriber equipment, below it is denoted as subscriber equipment i, place receives the PMI of this subscriber equipment i determined according to said method_h,i��PMI_v,i��BCI_h,i��BCI_v,i��And

-according to from this subscriber equipment i each information received, it is determined that and the MIMO mode of described subscriber equipment i, wherein said MIMO mode is SU-MIMO pattern or MU-MIMO pattern;

-when the MIMO mode of described subscriber equipment i is MU-MIMO pattern, based on from this subscriber equipment i each information received, it is determined that the pairing subscriber equipment of described subscriber equipment i.

Method according to above-mentioned user scheduling, wherein, described basis is from this subscriber equipment i each information received, it is determined that the step of the MIMO mode of described subscriber equipment i includes:

-according to from this subscriber equipment i each information received, determining first MIMO mode of described subscriber equipment i according to following formula:

-whenThe first MIMO mode determining described subscriber equipment i is SU-MIMO pattern;

-whenFirst MIMO mode of described subscriber equipment i is MU-MIMO pattern;

The mapping function that wherein Cap (CQI) is CQI to capacity,Total capacity for subscriber equipment i and best buddy subscriber equipment j thereof;

Wherein, when the MIMO mode of described subscriber equipment i is MU-MIMO pattern, based on from this subscriber equipment i each information received, it is determined that the step of the pairing subscriber equipment of described subscriber equipment i includes:

-when described first MIMO mode is MU-MIMO pattern, by PMI_v,jCoupling BCI_v,iAnd PMI_h,jCoupling BCI_h,iSubscriber equipment j be defined as described subscriber equipment i first pairing subscriber equipment.

Method according to above-mentioned user scheduling, wherein, also includes:

-receive instruction from this subscriber equipment iAndInformation;

-according to from this subscriber equipment i each information received, it is determined that the preferred dimension being used for space division multiplexing of this subscriber equipment i;

Method according to above-mentioned user, wherein, also includes:

-information of preferred dimension for space division multiplexing of instruction this subscriber equipment i is received from this subscriber equipment i;

-receive instruction from this subscriber equipment iInformation.

-according to from this subscriber equipment i each information received, and based on described preferred dimension and described inDetermine for described subscriber equipment i when being based only upon described preferred dimension and carrying out space division multiplexing according to following formula, second MIMO mode of described subscriber equipment i:

-whenDetermine that described second MIMO mode is SU-MIMO pattern;

-whenDetermine that described second MIMO mode is MU-MIMO pattern;

Wherein, described when the MIMO mode of described subscriber equipment i is MU-MIMO pattern, it is determined that to include with the step of the subscriber equipment of described subscriber equipment i pairing:

If-described first pairing subscriber equipment is absent from, and described second MIMO mode is MU-MIMO pattern, then when described preferred dimension is vertical dimensions, by PMI_v,jWith BCI_v,iThe subscriber equipment j of coupling is defined as the second pairing subscriber equipment of described subscriber equipment i, when described preferred dimension is horizontal dimensions, by PMI_h,jWith BCI_h,iThe subscriber equipment j of coupling is defined as the second pairing subscriber equipment of described subscriber equipment i.

Method according to above-mentioned user scheduling, wherein, also includes:

-receive instruction from this subscriber equipment iInformation.

Method according to above-mentioned user scheduling, wherein, described basis is from this subscriber equipment i each information received, it is determined that the MIMO mode of described subscriber equipment i, and the step that wherein said MIMO mode is SU-MIMO pattern or MU-MIMO pattern includes:

-according to from this subscriber equipment i each information received, and based on describedDetermine for described subscriber equipment i when being based only upon not preferred dimension and carrying out space division multiplexing according to following formula, the 3rd MIMO mode of described subscriber equipment i:

-whenDetermine that described 3rd MIMO mode is SU-MIMO pattern;

-whenDetermine that described 3rd MIMO mode is MU-MIMO pattern;

If-described first pairing subscriber equipment and described second pairing subscriber equipment are all absent from, and described 3rd MIMO mode is MU-MIMO pattern, then when not preferred dimension is vertical dimensions, by PMI_v,jCoupling BCI_v,iSubscriber equipment j be defined as described subscriber equipment i the 3rd pairing subscriber equipment, when not preferred dimension is horizontal dimensions, by PMI_h,jCoupling BCI_h,iSubscriber equipment j be defined as described subscriber equipment i the 3rd pairing subscriber equipment.

Method according to above-mentioned user scheduling, wherein, also includes:

-receive, from this subscriber equipment i, the amount R that the order of this subscriber equipment i is distributed in instruction in horizontal territory_h,i;

-receive, from this subscriber equipment i, the amount R that the order of this subscriber equipment i is distributed in instruction in perpendicular domains_v,i;

Wherein, described when the MIMO mode of described subscriber equipment i is MU-MIMO pattern, it is determined that also to include with the step of the subscriber equipment of described subscriber equipment i pairing:

-determine and meet the following conditions between selected pairing subscriber equipment j and this subscriber equipment i:

R_v,i+R_v,j�� M, and

R_h,i+R_h,j�� N,

Wherein M is the vertical antenna port number of this base station, and N is the horizontal antenna port number of this base station.

Another method according to the present invention, a kind of device being used for calculating and feed back the CSI of 3D channel in the subscriber equipment of wireless communication system is provided, wherein, described wireless communication system uses for 3D channel and is respectively used to the horizontal code book of horizontal channel and vertical channel and vertical code book, and this device includes:

-for based on the channel information of described 3D channel, described horizontal code book and described vertical code book, it is determined that described subscriber equipment, be below denoted as subscriber equipment i, the pre-coding matrix instruction PMI for horizontal channel_h,i, it is denoted as W in below equation_h,iDevice;

-for based on the channel information of described 3D channel, described horizontal code book and described vertical code book, it is determined that described subscriber equipment i is for the pre-coding matrix instruction PMI of vertical channel_v,i, it is denoted as W in below equation_v,iDevice;

-be used for based on the channel information of described 3D channel, described horizontal code book and described vertical code book, and based on described PMI_h,iAnd PMI_v,i, it is determined that described subscriber equipment i indicates BCI for the best partner of horizontal channel_h,i, it is denoted as W in below equation_h,j, in which it is assumed that this is used for the device that best partner is subscriber equipment j of horizontal channel;

-be used for based on the channel information of described 3D channel, described horizontal code book and described vertical code book, and based on described PMI_h,iAnd PMI_v,i, it is determined that described subscriber equipment i indicates BCI for the best partner of vertical channel_v,i, it is denoted as W in below equation_v,j, in which it is assumed that this is used for the device that best partner is subscriber equipment j of vertical channel;

-for based on described W_h,iAnd W_v,i, determine that described subscriber equipment i is under SU-MIMO pattern according to following formulaDevice:

-for based on described W_h,i��W_v,i��W_h,jAnd W_v,j, determine that described subscriber equipment i is under MU-MIMO pattern according to following formulaDevice:

-for described PMI will be indicated_h,i��PMI_v,i��BCI_h,i��BCI_v,i��AndInformation send to the device of base station.

Still another aspect according to the present invention, the device of the user scheduling being used for 3D channel in the base station of wireless communication system is provided, wherein, the described horizontal code book of wireless communication system use and vertical codes are originally respectively used to horizontal channel and the vertical channel of this 3D channel, and this device includes:

-for from subscriber equipment, below it is denoted as subscriber equipment i, place receives the calculating according to one aspect of the invention and feeds back the PMI of this subscriber equipment i that the method for CSI is determined_h,i��PMI_v,i��BCI_h,i��BCI_v,i��AndDevice;

-for according to from this subscriber equipment i each information received, it is determined that and the MIMO mode of described subscriber equipment i, wherein said MIMO mode is SU-MIMO pattern or the device of MU-MIMO pattern;

-for when the MIMO mode of described subscriber equipment i is MU-MIMO pattern, based on from this subscriber equipment i each information received, it is determined that the device matching subscriber equipment of described subscriber equipment i.

Compared with prior art, the method of the CSI in the subscriber equipment of wireless communication system for calculating and feeding back 3D channel provided by the present invention can be calculated for horizontal channel and vertical channel and feed back, the pattern that can determine MIMO in the base station of wireless communication system for the method for the user scheduling of 3D channel based on the CSI feedback information for horizontal channel and vertical channel received from subscriber equipment provided by the present invention, and carry out user's pairing accordingly, it is achieved thereby that the effective user scheduling in 3D channel.

Accompanying drawing explanation

By reading the detailed description that non-limiting example is made made with reference to the following drawings, the other features, objects and advantages of the present invention will become more apparent upon:

Fig. 1 is illustrated based on the schematic diagram of 3D channel;

Fig. 2 illustrate the embodiment according to one aspect of the invention in the subscriber equipment of wireless communication system for calculating and feed back the method flow diagram of CSI of 3D channel;

Fig. 3 illustrate embodiment according to a further aspect of the present invention in the base station of wireless communication system for the method flow diagram of the user scheduling of 3D channel;

Fig. 4 illustrate the embodiment according to another aspect of the present invention in the base station of wireless communication system for the device schematic diagram of the user scheduling of 3D channel;

Fig. 5 illustrate the embodiment according to still another aspect of the present invention in the base station of wireless communication system for the device schematic diagram of the user scheduling of 3D channel.

In accompanying drawing, same or analogous accompanying drawing labelling represents same or analogous parts.

Detailed description of the invention

Below in conjunction with accompanying drawing, the present invention is described in further detail.

Radio communication as herein described includes the communication mode undertaken based on GSM, 3GPP agreement by wireless signal. Wherein, cordless communication network includes the communication network based on GSM, 3GPP agreement, and usually, including multiple base stations, each base station provides the wireless coverage of its community, place and multiple subscriber equipment, each subscriber equipment can in different districts or between move. Base station includes but not limited to NodeB, eNodeB. A base station can be disposed in each community, and each base station can comprise several sector. Can use between the base stations for transmitting customer service or controlling the interface intercommunication of business. Base station can directly or indirectly with each subscriber equipment communication. And each subscriber equipment can be any electronic equipment that can wirelessly directly or indirectly communicate with base station, include but not limited to: mobile phone, PDA etc. Additionally, as a kind of optimal way, each base station in this cordless communication network has many antennas, and each subscriber equipment also has many antennas. Additionally, subscriber equipment can be distributed in different vertical heights. Thus, subscriber equipment and base station may make up the wireless communication system based on 3D channel. Preferably, each subscriber equipment and base station in this cordless communication network can adopt TDD mode (time-divisionduplexingmode, TDDmode) receive and send messages and mode of frequency division duplexing (frequency-divisionduplexingmode, FDDmode) is received and sent messages. Those skilled in the art should understand that; the pattern of wireless communication technology and each subscriber equipment and base station transceiver information is not limited with above-mentioned; other existing or wireless communication technologys of being likely to occur from now on and the pattern received and sent messages are as being applicable to the present invention; also should be included within scope, and be incorporated herein with way of reference.

Fig. 1 is illustrated based on the schematic diagram of 3D channel. As it can be seen, base station 1 utilizes aerial array to define the wave beam being respectively directed to subscriber equipment 1 and subscriber equipment 2. Owing to subscriber equipment 1 and subscriber equipment 2 lay respectively in different vertical heights, the wave beam of these two subscriber equipmenies being respectively directed to different vertical height is except needing to have different azimuths, also need to that there is different angle of declinations, namely the beam shaping of 3D channel needs the beam shaping of support level direction and vertical direction. For the vertical channel in 3D channel and horizontal channel, this radio communication can use vertical code book and horizontal code book respectively.

Fig. 2 illustrate the embodiment according to one aspect of the invention in the subscriber equipment of wireless communication system for calculating and feed back the method flow diagram of 3D channel CSI.

For subscriber equipment i, the method is described below.

In the step s 21, subscriber equipment i is based on the channel information of described 3D channel, described horizontal code book and described vertical code book, it is determined that described subscriber equipment i is for the pre-coding matrix instruction PMI of horizontal channel_h,i, it is denoted as W in below equation_h,i, it is a certain code word in horizontal code book. Herein, subscriber equipment can use any known method to determine this PMI_h,i, repeat no more herein.

In step S22, subscriber equipment is based on the channel information of described 3D channel, described horizontal code book and described vertical code book, it is determined that described subscriber equipment i is for the pre-coding matrix instruction PMI of vertical channel_v,i, it is denoted as W in below equation_v,i, it is a certain code word in vertical code book. Herein, user can use any known method to determine this PMI_v,i, repeat no more herein.

In step S23, subscriber equipment i is based on the channel information of described 3D channel, described horizontal code book and described vertical code book, and based on described PMI_h,iAnd PMI_v,i, it is determined that described subscriber equipment i indicates BCI for the best partner of horizontal channel_h,i, it is denoted as W in below equation_h,j, it is a certain code word in horizontal code book, in which it is assumed that this best partner being used for horizontal channel is subscriber equipment j. Herein, subscriber equipment can use any known method to determine this BCI_h,i, repeat no more herein.

In step s 24, subscriber equipment i is based on the channel information of described 3D channel, described horizontal code book and described vertical code book, and based on described PMI_h,iAnd PMI_v,i, it is determined that described subscriber equipment i indicates BCI for the best partner of vertical channel_v,i, it is denoted as W in below equation_v,j, it is a certain code word in vertical code book, in which it is assumed that this best partner being used for vertical channel is subscriber equipment j. Herein, subscriber equipment can use any known method to determine this BCI_v,i, repeat no more herein.

In step s 25, subscriber equipment i is based on described W_h,iAnd W_v,i, determine that described subscriber equipment i is under SU-MIMO pattern according to following formula

Wherein, �� (W_v,i,W_h,i) for W_h,iAnd W_v,iComposite function, OCI is other area interference, P_SUFor the signal power under SU-MIMO pattern, H_iChannel matrix for subscriber equipment i. Herein, �� (W_v,i,W_h,i) can be about W_h,iAnd W_v,iAny available composite function.

In step S26, subscriber equipment i is based on described W_h,i��W_v,i��W_h,jAnd W_v,j, determine that described subscriber equipment i is under MU-MIMO pattern according to following formula

Wherein, �� (W_v,j,W_h,j) for W mentioned above_h,jAnd W_v,jComposite function, P_MUFor the signal power under MU-MIMO pattern.

In step s 27, subscriber equipment i will indicate described PMI_h,i��PMI_v,i��BCI_h,i��BCI_v,i��AndInformation send to base station. Herein, subscriber equipment can pass through air interface by the above-mentioned CSI information transmission about this subscriber equipment to base station.

In one embodiment, subscriber equipment i determines that based on following formula ought be based only upon horizontal channel carries out

Further, subscriber equipment i determines when being based only upon vertical channel and being transmitted based on following formula

Herein, �� (W_v,j,W_h,j)��P_MU, described in the literary composition as defined above such as OCI.

In one embodiment, subscriber equipment i according toAndDetermine the preferred dimension for carrying out space division multiplexing of this subscriber equipment i based on following formula, wherein said preferred dimension is horizontal dimensions or vertical dimensions: whenTime, it is determined that horizontal dimensions is preferred dimension, otherwise, it determines vertical dimensions is preferred dimension. When described preferred dimension is horizontal dimensions, subscriber equipment i willAsWhen described preferred dimension is vertical dimensions, subscriber equipment i willAsThen the information indicating described preferred dimension is sent to base station by subscriber equipment i. Herein, subscriber equipment i such as can represent, with 1bit, the information indicating this preferred dimension, for instance when its value is 0, can represent that preferred dimension is vertical dimensions, when its value is 1, can represent that preferred dimension is horizontal dimensions. Additionally, subscriber equipment i can by described in instructionInformation send to base station. Herein, subscriber equipment i can will be somebody's turn to doValue sends to base station, it is also possible to shouldValue is with above-mentionedSide-play amount between valueSend to base station. Additionally, the value that above-mentioned offset value can also be mapped as such as 2bit by subscriber equipment represents. Such as, whenDuring for 0db, represent with 00; WhenFor [-1db-0db) time, represent with 01; And so on. It will be understood by those skilled in the art that herein, indicate information and the instruction of preferred dimensionThe representation of information be merely illustrative and indefiniteness describes, within any antenna suitable in the present invention also should be included in scope, and be incorporated herein with way of reference.

In a preferred embodiment, when described preferred dimension is horizontal dimensions, subscriber equipment i willAsWhen described preferred dimension is vertical dimensions, subscriber equipment willAsFurther, subscriber equipment i will indicateInformation send to base station. Herein, subscriber equipment i can will be somebody's turn to doValue sends to base station, it is also possible to shouldValue is with above-mentionedSide-play amount between valueSend to base station, it is also possible to shouldValue is with above-mentionedSide-play amount between valueSend to base station. Additionally, subscriber equipment i can also method as described above, the value that above-mentioned side-play amount is mapped as such as 2bit is represented, repeats no more herein. It will be understood by those skilled in the art that herein, instructionThe representation of information be merely illustrative and indefiniteness describes, within any antenna suitable in the present invention also should be included in scope, and be incorporated herein with way of reference.

In another embodiment, subscriber equipment i can by described in instructionAndInformation send to base station. Herein, the preferred dimension being used for carrying out space division multiplexing is not determined by subscriber equipment i, but by CQI when being based respectively on horizontal channel and vertical channel to be transmitted, namelyWithInformation all send to base station, base station determine the preferred dimension for carrying out space division multiplexing of this subscriber equipment i according to the information received. Herein, subscriber equipment i can be byWithValue send to base station, it is also possible to by it respectively with above-mentionedSide-play amount between value, namelyWithSend to base station. As described above, this offset value can also be mapped as the value of such as 2bit by subscriber equipment, repeats no more herein. It will be understood by those skilled in the art that herein, instructionWithThe representation of information be merely illustrative and indefiniteness describes, within any antenna suitable in the present invention also should be included in scope, and be incorporated herein with way of reference.

In yet another embodiment, instruction can be distributed to the amount R of the order of this subscriber equipment i by subscriber equipment i in horizontal territory_h,iInformation send to base station, and instruction is distributed in perpendicular domains the amount R of order of this subscriber equipment i_v,iInformation send to base station.

Fig. 3 illustrate embodiment according to a further aspect of the present invention in the base station of wireless communication system for the method flow diagram of the user scheduling of 3D channel, this horizontal code book of wireless communication system use and vertical codes are originally respectively used to horizontal channel and the vertical channel of this 3D channel.

Carry out user scheduling for base station for subscriber equipment i below to illustrate.

In step S31, base station receives the PMI according to method as discussed above this subscriber equipment determined i from subscriber equipment i_h,i��PMI_v,i��BCI_h,i��BCI_v,i��AndSpecifically, base station can be passed through air interface and receive above-mentioned information from subscriber equipment i, repeats no more herein.

In step s 32, base station is according to from this subscriber equipment i each information received, it is determined that the MIMO mode of described subscriber equipment i, wherein said MIMO mode is SU-MIMO pattern or MU-MIMO pattern. Then, in step S33, when the MIMO mode of described subscriber equipment i is MU-MIMO pattern, base station is based on from this subscriber equipment i each information received, it is determined that the pairing subscriber equipment of described subscriber equipment i.

In one embodiment, base station is according to from this subscriber equipment i each information received, determining first MIMO mode of described subscriber equipment i according to following formula:

-whenFirst MIMO mode of described subscriber equipment i is MU-MIMO pattern;

The mapping function that wherein Cap (CQI) is CQI to capacity,Total capacity for subscriber equipment i and best buddy subscriber equipment j thereof.

Herein, the first predetermined threshold is for according to such as statistical value or empirical value threshold value set in advance, and its value can be actually needed according to system and be adjusted.

Herein, above-mentioned first MIMO mode is when carrying out space division multiplexing based on horizontal dimensions and vertical dimensions, the MIMO mode of subscriber equipment i.

Further, when above-mentioned first MIMO mode is MU-MIMO pattern, base station is by PMI_v,jCoupling BCI_v,iAnd PMI_h,jCoupling BCI_h,iSubscriber equipment j be defined as described subscriber equipment i first pairing subscriber equipment.

In one embodiment, base station can also receive instruction from subscriber equipment iAndInformation. Then, base station is according to from this subscriber equipment i each information received, it is determined that the preferred dimension for space division multiplexing of this subscriber equipment i. Specifically, whenTime, base station determines that horizontal dimensions is preferred dimension, and otherwise, base station determines that vertical dimensions is preferred dimension. Further, when described preferred dimension is horizontal dimensions, base station willAsWhen described preferred dimension is vertical dimensions, base station willAsIn another embodiment, base station can receive the information of the preferred dimension for space division multiplexing of instruction this subscriber equipment i from subscriber equipment i. Such as, the information of this preferred dimension can be the value of 1bit, when its value is 0, base station using horizontal dimensions as preferred dimension, and when its value is 1, base station using vertical dimensions as preferred dimension. Additionally, base station can also receive instruction from this subscriber equipment iInformation. As described above, this instructionInformation can beValue, orValue withSide-play amount between valueSide-play amount, and this side-play amount can be mapped to the value of such as 2bit. Base station is according to received information, it is possible to correspondingly calculate thisValue. It will be understood by those skilled in the art that herein, the instruction receivedWithThe representation of information be merely illustrative and indefiniteness describes, within any antenna suitable in the present invention also should be included in scope, and be incorporated herein with way of reference.

In a preferred embodiment, base station based on described preferred dimension and described inDetermine for described subscriber equipment i when being based only upon described preferred dimension and carrying out space division multiplexing according to following formula, second MIMO mode of described subscriber equipment i:

-whenDetermine that described second MIMO mode is SU-MIMO pattern;

-whenDetermine that described second MIMO mode is MU-MIMO pattern;

Herein, the second predetermined threshold is for according to such as statistical value or empirical value threshold value set in advance, and its value can be actually needed according to system and be adjusted.

Above-mentioned second MIMO mode is when being based only upon preferred dimension to carry out space division multiplexing, the MIMO mode of subscriber equipment i.

Further, when the MIMO mode of described subscriber equipment i is MU-MIMO pattern, if described first pairing subscriber equipment is absent from, and described second MIMO mode is MU-MIMO pattern, then, when described preferred dimension is vertical dimensions, base station is by PMI_v,jWith BCI_v,iThe subscriber equipment j of coupling is defined as the second pairing subscriber equipment of described subscriber equipment i, and when described preferred dimension is horizontal dimensions, base station is by PMI_h,jWith BCI_h,iThe subscriber equipment j of coupling is defined as the second pairing subscriber equipment of described subscriber equipment i.

Method as described above, when base station be subscriber equipment i can not match the first pairing subscriber equipment time, base station still is able to according to preferred dimension, come for subscriber equipment i find second pairing subscriber equipment so that the user scheduling strategy of base station is more flexible.

In one embodiment, when base station is according to from the subscriber equipment i instruction receivedAndInformation determine preferred dimension after, when described preferred dimension is horizontal dimensions, base station willAsWhen described preferred dimension is vertical dimensions, base station willAsIn another embodiment, base station receives the information of the preferred dimension for space division multiplexing of instruction this subscriber equipment i from this subscriber equipment i, additionally, base station also receives instruction from this subscriber equipment iInformation. As described above, this instruction that base station receivesInformation can for this willValue, or for shouldValue is with above-mentionedSide-play amount between valueCan also be shouldValue is with above-mentionedSide-play amount between valueFurther, as described above, above-mentioned side-play amount can also be mapped as the value of such as 2bit. Herein, base station is according to received information, it is possible to correspondingly calculate thisValue, repeat no more herein.

Then, in a preferred embodiment, base station is according to from this subscriber equipment i each information received, and based on describedDetermine for described subscriber equipment i when being based only upon not preferred dimension and carrying out space division multiplexing according to following formula, the 3rd MIMO mode of described subscriber equipment i:

-whenDetermine that described 3rd MIMO mode is SU-MIMO pattern;

-whenDetermine that described 3rd MIMO mode is MU-MIMO pattern;

Herein, the 3rd predetermined threshold is for according to such as statistical value or empirical value threshold value set in advance, and its value can be actually needed according to system and be adjusted.

Above-mentioned 3rd MIMO mode is when being based only upon not preferred dimension to carry out space division multiplexing, the MIMO mode of subscriber equipment i.

Further, if described first pairing subscriber equipment and described second pairing subscriber equipment are all absent from, and described 3rd MIMO mode is MU-MIMO pattern, then, when not preferred dimension is vertical dimensions, base station is by PMI_v,jCoupling BCI_v,iSubscriber equipment j be defined as described subscriber equipment i the 3rd pairing subscriber equipment, when not preferred dimension is horizontal dimensions, base station is by PMI_h,jCoupling BCI_h,iSubscriber equipment j be defined as described subscriber equipment i the 3rd pairing subscriber equipment.

Method as described above, when base station be subscriber equipment i can not mate the first pairing subscriber equipment and second pairing subscriber equipment time, base station still is able to according to not preferred dimension, to find the 3rd pairing subscriber equipment for subscriber equipment i, thus increasing user scheduling strategy flexible of base station further.

In yet another embodiment, base station can receive, from subscriber equipment i, amount R h, the i that the order of this subscriber equipment i is distributed in instruction in horizontal territory, and receives, from subscriber equipment i, amount R v, the i that the order of this subscriber equipment i is distributed in instruction in perpendicular domains. Now, when the MIMO mode of described subscriber equipment i is MU-MIMO pattern, base station, when determining the subscriber equipment with described subscriber equipment i pairing, also should determine that and meets the following conditions between selected pairing subscriber equipment j and this subscriber equipment i:

R_v,i+R_v,j�� M, and

R_h,i+R_h,j�� N,

Fig. 4 illustrate the embodiment according to another aspect of the present invention in the subscriber equipment of wireless communication system for calculating and feed back the device schematic diagram of 3D channel CSI.

For subscriber equipment i, this device is described below.

Subscriber equipment i for based on the channel information of described 3D channel, described horizontal code book and described vertical code book, it is determined that described subscriber equipment, be below denoted as subscriber equipment i, the pre-coding matrix instruction PMI for horizontal channel_h,i, it is denoted as W in below equation_h,iDevice 41, hereinafter referred to as horizontal channel pre-coding matrix instruction determine device 41, based on the channel information of described 3D channel, described horizontal code book and described vertical code book, it is determined that described subscriber equipment i for horizontal channel pre-coding matrix instruction PMI_h,i, it is denoted as W in below equation_h,i, it is a certain code word in horizontal code book. Herein, the instruction of horizontal channel pre-coding matrix determines that device 41 can use any known method to determine this PMI_h,i, repeat no more herein.

Subscriber equipment i is used for based on the channel information of described 3D channel, described horizontal code book and described vertical code book, it is determined that described subscriber equipment i is for the pre-coding matrix instruction PMI of vertical channel_v,i, it is denoted as W in below equation_v,iDevice 42, hereinafter referred to as vertical channel pre-coding matrix indicate determine device 42, based on the channel information of described 3D channel, described horizontal code book and described vertical code book, it is determined that described subscriber equipment i for vertical channel pre-coding matrix instruction PMI_v,i, it is denoted as W in below equation_v,i, it is a certain code word in vertical code book. Herein, the pre-coding matrix instruction of vertical channel determines that device 42 can use any known method to determine this PMI_v,i, repeat no more herein.

Subscriber equipment i is used for based on the channel information of described 3D channel, described horizontal code book and described vertical code book, and based on described PMI_h,iAnd PMI_v,i, it is determined that described subscriber equipment i indicates BCI for the best partner of horizontal channel_h,i, it is denoted as W in below equation_h,jIn which it is assumed that this is used for the device 43 that best partner is subscriber equipment j of horizontal channel, determine device 43 hereinafter referred to as horizontal channel the best partner instruction, based on the channel information of described 3D channel, described horizontal code book and described vertical code book, and based on described PMI_h,iAnd PMI_v,i, it is determined that described subscriber equipment i indicates BCI for the best partner of horizontal channel_h,i, it is denoted as W in below equation_h,j, it is a certain code word in horizontal code book, in which it is assumed that this best partner being used for horizontal channel is subscriber equipment j. Herein, horizontal channel the best partner instruction determines that device 43 can use any known method to determine this BCI_h,i, repeat no more herein.

Subscriber equipment i is used for based on the channel information of described 3D channel, described horizontal code book and described vertical code book, and based on described PMI_h,iAnd PMI_v,i, it is determined that described subscriber equipment i indicates BCI for the best partner of vertical channel_v,i, it is denoted as W in below equation_v,jIn which it is assumed that this is used for the device 44 that best partner is subscriber equipment j of vertical channel, determine device 44 hereinafter referred to as vertical channel the best partner instruction, based on the channel information of described 3D channel, described horizontal code book and described vertical code book, and based on described PMI_h,iAnd PMI_v,i, it is determined that described subscriber equipment i indicates BCI for the best partner of vertical channel_v,i, it is denoted as W in below equation_v,j, it is a certain code word in vertical code book, in which it is assumed that this best partner being used for vertical channel is subscriber equipment j. Herein, vertical channel the best partner instruction determines that device 44 can use any known method to determine this BCI_v,i, repeat no more herein.

Subscriber equipment i is used for based on described W_h,iAnd W_v,i, it is determined that described subscriber equipment i is under SU-MIMO patternDevice 45, hereinafter referred to asDetermine device 45, based on described W_h,iAnd W_v,i, determine that described subscriber equipment i is under SU-MIMO pattern according to following formula

Subscriber equipment i is used for based on described W_h,i��W_v,i��W_h,jAnd W_v,j, it is determined that described subscriber equipment i is under MU-MIMO patternDevice 46, hereinafter referred to asDetermine that device 46 is based on described W_h,i��W_v,i��W_h,jAnd W_v,j, determine that described subscriber equipment i is under MU-MIMO pattern according to following formula

Subscriber equipment i for described PMI will be indicated_h,i��PMI_v,i��BCI_h,i��BCI_v,i��AndInformation send to the device 47 of base station, hereinafter referred to as the first dispensing device 47, described PMI will be indicated_h,i��PMI_v,i��BCI_h,i��BCI_v,i��AndInformation send to base station. Herein, the first dispensing device 47 can pass through air interface by the above-mentioned CSI information transmission about this subscriber equipment to base station.

In one embodiment, subscriber equipment i for determining when being based only upon horizontal channel to be transmittedDevice, hereinafter referred to asDetermine device 48 (not shown),

Further, subscriber equipment i for determining when being based only upon vertical channel to be transmittedDevice, hereinafter referred to asDetermine device 49 (not shown), based on following formula

In one embodiment, subscriber equipment i for basisAndDetermining the preferred dimension for carrying out space division multiplexing of this subscriber equipment i, wherein said preferred dimension is the device of horizontal dimensions or vertical dimensions, determines device 49 (not shown) hereinafter referred to as preferred dimension, according toAndDetermine the preferred dimension for carrying out space division multiplexing of this subscriber equipment i based on following formula, wherein said preferred dimension is horizontal dimensions or vertical dimensions: whenTime, it is preferable that dimension determines that device 49 determines that horizontal dimensions is preferred dimension, otherwise, it is preferable that dimension determines that device 49 determines that vertical dimensions is preferred dimension. When described preferred dimension is horizontal dimensions, it is used for when described preferred dimension is horizontal dimensions, willAsWhen described preferred dimension is vertical dimensions, willAsDevice, hereinafter referred to asDetermine device 410 (not shown), willAsWhen described preferred dimension is vertical dimensions,Determine that device 410 willAsThen the device of the information transmission to base station for indicating described preferred dimension of subscriber equipment i, hereinafter referred to as preferred dimension dispensing device 411 (not shown), sends the information indicating described preferred dimension to base station. Herein, it is preferable that dimension dispensing device 411 such as can represent, with 1bit, the information indicating this preferred dimension, for instance when its value is 0, can represent that preferred dimension is vertical dimensions, when its value is 1, can represent that preferred dimension is horizontal dimensions. Additionally, subscriber equipment i's is used for described in instructionInformation send to the device of base station, hereinafter referred to asInformation transmitting apparatus 412 (not shown), it is possible to described in indicatingInformation send to base station. Herein,Information transmitting apparatus 412 can will be somebody's turn to doValue sends to base station, it is also possible to shouldValue is with above-mentionedSide-play amount between valueSend to base station. Additionally,Above-mentioned offset value can also be mapped as the value of such as 2bit and represent by information transmitting apparatus 412. Such as, whenDuring for 0db, represent with 00; WhenFor [-1db-0db) time, represent with 01; And so on. It will be understood by those skilled in the art that herein, indicate information and the instruction of preferred dimensionThe representation of information be merely illustrative and indefiniteness describes, within any antenna suitable in the present invention also should be included in scope, and be incorporated herein with way of reference.

In a preferred embodiment, when described preferred dimension is horizontal dimensions, subscriber equipment i is used for when described preferred dimension is horizontal dimensions, willAsWhen described preferred dimension is vertical dimensions, willAsDevice, hereinafter referred to asDetermine device 413 (not shown), willAsWhen described preferred dimension is vertical dimensions,Determine that device 413 willAsFurther, subscriber equipment i will indicateInformation send to base station. Herein, subscriber equipment i for will instruction described inInformation send to the device of base station, hereinafter referred to asInformation transmitting apparatus 414 (not shown), it is possible to shouldValue sends to base station, it is also possible to shouldValue is with above-mentionedSide-play amount between valueSend to base station, it is also possible to shouldValue is with above-mentionedSide-play amount between valueSend to base station. Additionally,Information transmitting apparatus 414 can also method as described above, the value that above-mentioned side-play amount is mapped as such as 2bit is represented, repeats no more herein. It will be understood by those skilled in the art that herein, instructionThe representation of information be merely illustrative and indefiniteness describes, within any antenna suitable in the present invention also should be included in scope, and be incorporated herein with way of reference.

In another embodiment, subscriber equipment i for will instruction described inAndInformation send to the device of base station, hereinafter referred to as the second information transmitting apparatus 415 (not shown), it is possible to will described in instructionAndInformation send to base station. Herein, the preferred dimension being used for carrying out space division multiplexing is not determined by subscriber equipment i, but by CQI when being based respectively on horizontal channel and vertical channel to be transmitted, namelyWithInformation all send to base station, base station determine the preferred dimension for carrying out space division multiplexing of this subscriber equipment i according to the information received. Herein, the second information transmitting apparatus 415 can be byWithValue send to base station, it is also possible to by it respectively with above-mentionedSide-play amount between value, namelyWithSend to base station. As described above, this offset value can also be mapped as the value of such as 2bit by the second information transmitting apparatus 415, repeats no more herein. It will be understood by those skilled in the art that herein, instructionWithThe representation of information be merely illustrative and indefiniteness describes, within any antenna suitable in the present invention also should be included in scope, and be incorporated herein with way of reference.

In yet another embodiment, the amount R of the order for instruction to be distributed to this subscriber equipment i in horizontal territory of subscriber equipment i_h,iInformation send to the device of base station, hereinafter referred to as R_h,iInformation transmitting apparatus 416 (not shown), it is possible to instruction is distributed in horizontal territory the amount R of the order of this subscriber equipment i_h,iInformation send to base station, and for instruction to be distributed to the amount R of order of this subscriber equipment i in perpendicular domains_v,iInformation send to the device of base station, hereinafter referred to as R_v,iInformation transmitting apparatus 417 (not shown), distributes to the amount R of the order of this subscriber equipment i by instruction in perpendicular domains_v,iInformation send to base station.

Fig. 5 illustrate the embodiment according to still another aspect of the present invention in the base station of wireless communication system for the device schematic diagram of the user scheduling of 3D channel, this horizontal code book of wireless communication system use and vertical codes are originally respectively used to horizontal channel and the vertical channel of this 3D channel.

Being used for from subscriber equipment of base station, is below denoted as subscriber equipment i, and place receives the PMI of this subscriber equipment i determined according to described method mentioned above_h,i��PMI_v,i��BCI_h,i��BCI_v,i��AndDevice 51, hereinafter referred to as first receiving device 51, receive the PMI according to method as discussed above this subscriber equipment determined i from subscriber equipment i_h,i��PMI_v,i��BCI_h,i��BCI_v,i��AndSpecifically, first receiving device 51 can pass through air interface and receive above-mentioned information from subscriber equipment i, repeats no more herein.

Base station for according to from this subscriber equipment i each information received, determine the MIMO mode of described subscriber equipment i, wherein said MIMO mode is the device 52 of SU-MIMO pattern or MU-MIMO pattern, device 52 is determined hereinafter referred to as base station pattern, according to from this subscriber equipment i each information received, determining the MIMO mode of described subscriber equipment i, wherein said MIMO mode is SU-MIMO pattern or MU-MIMO pattern. Then, for when the MIMO mode of described subscriber equipment i is MU-MIMO pattern, based on from this subscriber equipment i each information received, determine the device 53 of the pairing subscriber equipment of described subscriber equipment i, hereinafter referred to as subscriber equipment contrast means 53, when the MIMO mode of described subscriber equipment i is MU-MIMO pattern, based on from this subscriber equipment i each information received, it is determined that the pairing subscriber equipment of described subscriber equipment i.

In one embodiment, for according to from this subscriber equipment i each information received, determine the device of first MIMO mode of described subscriber equipment i, device 521 (not shown) is determined hereinafter referred to as the first MIMO mode, according to from this subscriber equipment i each information received, determining first MIMO mode of described subscriber equipment i according to following formula:

-whenFirst MIMO mode of described subscriber equipment i is MU-MIMO pattern;

Further, when above-mentioned first MIMO mode is MU-MIMO pattern, subscriber equipment contrast means 53 is by PMI_v,jCoupling BCI_v,iAnd PMI_h,jCoupling BCI_h,iSubscriber equipment j be defined as described subscriber equipment i first pairing subscriber equipment.

In one embodiment, base station for from this subscriber equipment i receive indicateAndThe device of information, receive device 54 (not shown) hereinafter referred to as second, it is also possible to receive from subscriber equipment i and indicateAndInformation. Then, base station for according to from this subscriber equipment i each information received, determine the device of the preferred dimension for space division multiplexing of this subscriber equipment i, device 55 (not shown) is determined hereinafter referred to as base station preferred dimension, according to from this subscriber equipment i each information received, it is determined that the preferred dimension for space division multiplexing of this subscriber equipment i. Specifically, whenTime, base station preferred dimension determines that device 55 determines that horizontal dimensions is preferred dimension, and otherwise, base station preferred dimension determines that device 55 determines that vertical dimensions is preferred dimension. Further, when described preferred dimension is horizontal dimensions, being used for when described preferred dimension is horizontal dimensions of base station, willAsWhen described preferred dimension is vertical dimensions, willAsDevice, hereinafter referred to asDetermine device 56 (not shown), willAsWhen described preferred dimension is vertical dimensions,Determine that device 56 willAsIn another embodiment, the device of the information of the preferred dimension for space division multiplexing for receiving instruction this subscriber equipment i from this subscriber equipment i of base station, device 57 (not shown) is received, it is possible to receive the information of the preferred dimension for space division multiplexing of instruction this subscriber equipment i from subscriber equipment i hereinafter referred to as preferred dimension. Such as, the information of this preferred dimension can be the value of 1bit, when its value is 0, it is preferable that dimensional reception device 57 using horizontal dimensions as preferred dimension, and when its value is 1, it is preferable that dimensional reception device 57 using vertical dimensions as preferred dimension. Additionally, base station for from this subscriber equipment i receive indicateThe device of information, hereinafter referred to asReceive device 58 (not shown), it is also possible to receive instruction from this subscriber equipment iInformation. As described above, this instructionInformation can beValue, orValue withSide-play amount between valueSide-play amount, and this side-play amount can be mapped to the value of such as 2bit.Receive device 58 according to received information, it is possible to correspondingly calculate thisValue. It will be understood by those skilled in the art that herein, the instruction receivedWithThe representation of information be merely illustrative and indefiniteness describes, within any antenna suitable in the present invention also should be included in scope, and be incorporated herein with way of reference.

In a preferred embodiment, base station for according to from this subscriber equipment i each information received, and based on described preferred dimension and described inDetermine for described subscriber equipment i when being based only upon described preferred dimension to carry out space division multiplexing, the device of second MIMO mode of described subscriber equipment i, determine device 522 (not shown) hereinafter referred to as the second MIMO mode, based on described preferred dimension and described inDetermine for described subscriber equipment i when being based only upon described preferred dimension and carrying out space division multiplexing according to following formula, second MIMO mode of described subscriber equipment i:

-whenDetermine that described second MIMO mode is SU-MIMO pattern;

-whenDetermine that described second MIMO mode is MU-MIMO pattern;

And, when the MIMO mode of described subscriber equipment i is MU-MIMO pattern, if described first pairing subscriber equipment is absent from, and described second MIMO mode is MU-MIMO pattern, then when described preferred dimension is vertical dimensions, subscriber equipment contrast means 53 is by PMI_v,jWith BCI_v,iThe subscriber equipment j of coupling is defined as the second pairing subscriber equipment of described subscriber equipment i, and when described preferred dimension is horizontal dimensions, subscriber equipment contrast means 53 is by PMI_h,jWith BCI_h,iThe subscriber equipment j of coupling is defined as the second pairing subscriber equipment of described subscriber equipment i.

Method as described above, when subscriber equipment contrast means 53 can not match the first pairing subscriber equipment for subscriber equipment i, subscriber equipment contrast means 53 still is able to according to preferred dimension, to find the second pairing subscriber equipment for subscriber equipment i, so that the user scheduling strategy of base station is more flexible.

In one embodiment, when base station is according to from the subscriber equipment i instruction receivedAndInformation determine preferred dimension after, when described preferred dimension is horizontal dimensions, base station for when described preferred dimension is horizontal dimensions, willAsWhen described preferred dimension is vertical dimensions, willAsDevice, hereinafter referred to asDetermine device 59 (not shown), willAsWhen described preferred dimension is vertical dimensions,Determine that device 59 willAsIn another embodiment, the device of the information of the preferred dimension for space division multiplexing for receiving instruction this subscriber equipment i from this subscriber equipment i of base station, device 510 (not shown) is received hereinafter referred to as preferred dimension, the information of the preferred dimension for space division multiplexing of instruction this subscriber equipment i is received from this subscriber equipment i, additionally, base station for from this subscriber equipment i receive indicateThe device of information, hereinafter referred to asReceive device 511 (not shown), also receive instruction from this subscriber equipment iInformation. As described above,Receive this instruction that device 511 receivesInformation can for this willValue, or for shouldValue is with above-mentionedSide-play amount between valueCan also be shouldValue is with above-mentionedSide-play amount between valueFurther, as described above, above-mentioned side-play amount can also be mapped as the value of such as 2bit. Herein,Receive device 511 according to received information, it is possible to correspondingly calculate thisValue, repeat no more herein.

Then, in a preferred embodiment, base station for according to from this subscriber equipment i each information received, and based on describedDetermine for described subscriber equipment i when being based only upon not preferred dimension to carry out space division multiplexing, the device of the 3rd MIMO mode of described subscriber equipment i, device 523 (not shown) is determined hereinafter referred to as the 3rd MIMO mode, according to from this subscriber equipment i each information received, and based on describedDetermine for described subscriber equipment i when being based only upon not preferred dimension and carrying out space division multiplexing according to following formula, the 3rd MIMO mode of described subscriber equipment i:

-whenDetermine that described 3rd MIMO mode is SU-MIMO pattern;

-whenDetermine that described 3rd MIMO mode is MU-MIMO pattern;

Further, if described first pairing subscriber equipment and described second pairing subscriber equipment are all absent from, and described 3rd MIMO mode is MU-MIMO pattern, then, when not preferred dimension is vertical dimensions, subscriber equipment contrast means 52 is by PMI_v,jCoupling BCI_v,iSubscriber equipment j be defined as described subscriber equipment i the 3rd pairing subscriber equipment, when not preferred dimension is horizontal dimensions, subscriber equipment contrast means 52 is by PMI_h,jCoupling BCI_h,iSubscriber equipment j be defined as described subscriber equipment i the 3rd pairing subscriber equipment.

Method as described above, when subscriber equipment contrast means 52 can not mate the first pairing subscriber equipment and the second pairing subscriber equipment for subscriber equipment i, subscriber equipment contrast means 52 still is able to according to not preferred dimension, to find the 3rd pairing subscriber equipment for subscriber equipment i, thus increasing user scheduling strategy flexible of base station further.

In yet another embodiment, the amount R of the order for distributing to this subscriber equipment i in horizontal territory from this subscriber equipment i reception instruction of base station_h,iDevice, hereinafter referred to as R_h,iReceive device 512 (not shown), the amount R h that the order of this subscriber equipment i is distributed in instruction in horizontal territory can be received from subscriber equipment i, i, and, the amount R of the order for distributing to this subscriber equipment i in perpendicular domains from this subscriber equipment i reception instruction of base station_v,iDevice, hereinafter referred to as R_v,iReceive device 513 (not shown), receive, from subscriber equipment i, amount R v, the i that the order of this subscriber equipment i is distributed in instruction in perpendicular domains. Now, when the MIMO mode of described subscriber equipment i is MU-MIMO pattern, subscriber equipment contrast means 52, when determining the subscriber equipment with described subscriber equipment i pairing, also should determine that and meets the following conditions between selected pairing subscriber equipment j and this subscriber equipment i:

R_v,i+R_v,j�� M, and

R_h,i+R_h,j�� N,

It should be noted that the present invention can be implemented in the assembly of software and/or software and hardware, for instance, special IC (ASIC), general purpose computer or any other similar hardware device can be adopted to realize. In one embodiment, the software program of the present invention can perform to realize steps described above or function by processor. Similarly, the software program of the present invention can be stored in computer readable recording medium storing program for performing (including the data structure being correlated with), for instance, RAM memory, magnetically or optically driver or floppy disc and similar devices. It addition, some steps of the present invention or function can employ hardware to realize, for instance, as coordinating with processor thus performing the circuit of each step or function.

It addition, the part of the present invention can be applied to computer program, for instance computer program instructions, when it is computer-executed, by the operation of this computer, it is possible to call or provide the method according to the invention and/or technical scheme. And call the programmed instruction of the method for the present invention, it is possibly stored in fixing or moveable record medium, and/or by broadcast or data stream in other signal bearing medias and be transmitted, and/or be stored in the working storage of the computer equipment run according to described programmed instruction. At this, include a device according to one embodiment of present invention, this device includes the memorizer for storing computer program instructions and for performing the processor of programmed instruction, wherein, when this computer program instructions is performed by this processor, trigger this plant running based on the method for aforementioned multiple embodiments according to the present invention and/or technical scheme.

It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when without departing substantially from the spirit of the present invention or basic feature, it is possible to realize the present invention in other specific forms. Therefore, no matter from which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the invention rather than described above limits, it is intended that all changes in the implication of the equivalency dropping on claim and scope be included in the present invention. Any accompanying drawing labelling in claim should be considered as the claim that restriction is involved. Furthermore, it is to be understood that " including " word is not excluded for other unit or step, odd number is not excluded for plural number. In device claim, multiple devices of statement can also be realized by software or hardware by a device. The first, the second word such as grade is used for representing title, and is not offered as any specific order.

Claims

1. the method being used for calculating and feed back the CSI of 3D channel in the subscriber equipment of wireless communication system, wherein, described wireless communication system uses for 3D channel and is respectively used to the horizontal code book of horizontal channel and vertical channel and vertical code book, and the method includes:

2. method according to claim 1, wherein, also includes:

-based on following formula determine when be based only upon vertical channel carry out pass 2 defeated time

3. method according to claim 2, wherein also includes:

-information indicating described preferred dimension is sent to base station;

-by described in instructionInformation send to base station.

4. method according to claim 2, wherein, also includes:

-by described in instructionAndInformation send to base station.

5. according to the method in claim 2 or 3, wherein, also include:

-by described in instructionInformation send to base station.

6. method according to any one of claim 1 to 5, wherein, also includes:

7., for a method for the user scheduling of 3D channel in the base station of wireless communication system, wherein, the described horizontal code book of wireless communication system use and vertical codes are originally respectively used to horizontal channel and the vertical channel of this 3D channel, and the method includes:

-from subscriber equipment, below it is denoted as subscriber equipment i, place receives the PMI of this subscriber equipment i that method according to any one of claim 1 to 6 is determined_h,i��PMI_v,i��BCI_h,i��BCI_v,i��And

8. method according to claim 7, wherein, described basis is from this subscriber equipment i each information received, it is determined that the step of the MIMO mode of described subscriber equipment i includes:

-whenDescribed subscriber equipment

First MIMO mode of i is MU-MIMO pattern;

9. the method according to claim 7 or 8, wherein, also includes:

-receive instruction from this subscriber equipment iAndInformation;

10. the method according to claim 7 or 8, wherein, also includes:

-receive instruction from this subscriber equipment iInformation.

11. the method according to claim 9 or 10, wherein, described basis is from this subscriber equipment i each information received, it is determined that the step of the MIMO mode of described subscriber equipment i includes:

-whenDetermine that described second MIMO mode is SU-MIMO pattern;

-whenDetermine that described second MIMO mode is MU-MIMO pattern;

12. method according to claim 9, wherein, also include:

13. method according to claim 10, wherein, also include:

-receive instruction from this subscriber equipment iInformation.

14. the method according to claim 12 or 13, wherein, described basis is from this subscriber equipment i each information received, it is determined that the MIMO mode of described subscriber equipment i, and the step that wherein said MIMO mode is SU-MIMO pattern or MU-MIMO pattern includes:

-whenDetermine that described 3rd MIMO mode is SU-MIMO pattern;

-whenDetermine that described 3rd MIMO mode is MU-MIMO pattern;

15. the method according to any one of claim 7 to 14, wherein, also include:

R_v,i+R_v,j�� M, and

R_h,i+R_h,j�� N,

16. be used for calculating and feeding back a device of the CSI of 3D channel in the subscriber equipment of wireless communication system, wherein, described wireless communication system uses for 3D channel and is respectively used to the horizontal code book of horizontal channel and vertical channel and vertical code book, and this device includes:

17. device according to claim 16, wherein, also include:

-for determining when being based only upon horizontal channel and being transmitted based on following formulaDevice:

-for determining when being based only upon vertical channel and being transmitted based on following formulaDevice:

18. device according to claim 17, wherein also include:

-for basisAndDetermine the preferred dimension for carrying out space division multiplexing of this subscriber equipment i based on following formula, wherein said preferred dimension is the device of horizontal dimensions or vertical dimensions:

-be used for when described preferred dimension is horizontal dimensions, willAsWhen described preferred dimension is vertical dimensions, willAsDevice;

-for the information indicating described preferred dimension is sent the device to base station;

-for by described in instructionInformation send to the device of base station.

19. device according to claim 18, wherein, also include:

-for by described in instructionAndInformation send to the device of base station.

20. the device according to claim 17 or 18, wherein, also include:

-for by described in instructionInformation send to the device of base station.

21. the device according to any one of claim 16 to 20, wherein, also include:

-for instruction to be distributed to the amount R of the order of this subscriber equipment i in horizontal territory_h,iInformation send to the device of base station;

-for instruction to be distributed to the amount R of the order of this subscriber equipment i in perpendicular domains_v,iInformation send to the device of base station.

22. for a device for the user scheduling of 3D channel in the base station of wireless communication system, wherein, the described horizontal code book of wireless communication system use and vertical codes are originally respectively used to horizontal channel and the vertical channel of this 3D channel, and this device includes:

-for from subscriber equipment, being below denoted as subscriber equipment i, place receives the PMI of this subscriber equipment i that method according to any one of claim 1 to 5 is determined_h,i��PMI_v,i��BCI_h,i��BCI_v,i��AndDevice;

23. device according to claim 22, wherein, described for according to from this subscriber equipment i each information received, it is determined that the device of the MIMO mode of described subscriber equipment i includes:

-for according to from this subscriber equipment i each information received, determining the device of first MIMO mode of described subscriber equipment i according to following formula:

-whenFirst MIMO mode of described subscriber equipment i is MU-MIMO pattern;

Wherein, for when the MIMO mode of described subscriber equipment i is MU-MIMO pattern, based on from this subscriber equipment i each information received, it is determined that the device of subscriber equipment of matching of described subscriber equipment i is used for:

24. the device according to claim 22 or 23, wherein, also include:

-for receiving instruction from this subscriber equipment iAndThe device of information;

-for according to from this subscriber equipment i each information received, it is determined that the device of the preferred dimension being used for space division multiplexing of this subscriber equipment i;

-be used for when described preferred dimension is horizontal dimensions, willAsWhen described preferred dimension is vertical dimensions, willAsDevice.

25. the device according to claim 22 or 23, wherein, also include:

-for receiving the device of the information of the preferred dimension for space division multiplexing of instruction this subscriber equipment i from this subscriber equipment i;

-for receiving instruction from this subscriber equipment iThe device of information.

26. the device according to claim 24 or 25, wherein, described for according to from this subscriber equipment i each information received, it is determined that the device of the MIMO mode of described subscriber equipment i includes:

-for according to from this subscriber equipment i each information received, and based on described preferred dimension and described inDetermine for described subscriber equipment i when being based only upon described preferred dimension and carrying out space division multiplexing according to following formula, the device of second MIMO mode of described subscriber equipment i:

-whenDetermine that described second MIMO mode is SU-MIMO pattern;

-whenDetermine that described second MIMO mode is MU-MIMO pattern;

Wherein, described for when the MIMO mode of described subscriber equipment i is MU-MIMO pattern, it is determined that to be used for the device of the subscriber equipment of described subscriber equipment i pairing:

If-described first pairing subscriber equipment is absent from, and described second MIMO mode is MU-MIMO pattern, then when described preferred dimension is vertical dimensions, by its PMI_v,jWith BCI_v,iThe subscriber equipment j of coupling is defined as the second pairing subscriber equipment of described subscriber equipment i, when described preferred dimension is horizontal dimensions, by its PMI_h,jWith BCI_h,iThe subscriber equipment j of coupling is defined as the second pairing subscriber equipment of described subscriber equipment i.

27. device according to claim 24, wherein, also include:

28. device according to claim 27, wherein, also include:

29. the device according to claim 25 or 26, wherein, described for according to from this subscriber equipment i each information received, it is determined that the MIMO mode of described subscriber equipment i, the device that wherein said MIMO mode is SU-MIMO pattern or MU-MIMO pattern includes:

-it is used for basis from this subscriber equipment i each information received, and based on describedDetermine for described subscriber equipment i when being based only upon not preferred dimension and carrying out space division multiplexing according to following formula, the device of the 3rd MIMO mode of described subscriber equipment i:

-whenDetermine that described 3rd MIMO mode is SU-MIMO pattern;

-whenDetermine that described 3rd MIMO mode is MU-MIMO pattern;

30. the device according to any one of claim 22 to 29, wherein, also include:

-for receiving, from this subscriber equipment i, the amount R that the order of this subscriber equipment i is distributed in instruction in horizontal territory_h,iDevice;

-for receiving, from this subscriber equipment i, the amount R that the order of this subscriber equipment i is distributed in instruction in perpendicular domains_v,iDevice;

Wherein, described for when the MIMO mode of described subscriber equipment i is MU-MIMO pattern, it is determined that to be additionally operable to the device of the subscriber equipment of described subscriber equipment i pairing:

R_v,i+R_v,j�� M, and

R_h,i+R_h,j�� N,