CN104243003B - A kind of transmission method and device of the channel condition information based on code book - Google Patents

A kind of transmission method and device of the channel condition information based on code book Download PDF

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Publication number
CN104243003B
CN104243003B CN201310224583.1A CN201310224583A CN104243003B CN 104243003 B CN104243003 B CN 104243003B CN 201310224583 A CN201310224583 A CN 201310224583A CN 104243003 B CN104243003 B CN 104243003B
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pre
coding matrix
code book
compression
coding
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CN201310224583.1A
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Chinese (zh)
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CN104243003A (en
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张然然
苏昕
拉盖施
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电信科学技术研究院
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0636Feedback format
    • H04B7/0639Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413MIMO systems
    • H04B7/0456Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0617Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621Feedback content
    • H04B7/063Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621Feedback content
    • H04B7/0632Channel quality parameters, e.g. channel quality indicator [CQI]

Abstract

The embodiment of the invention discloses a kind of transmission method and device of the channel condition information based on code book, for solving to be directed in the case of 4 antenna ports, there is presently no the problem of the concrete scheme for the feedback that channel condition information is carried out based on enhanced code book.Its method includes:Terminal from 4 antenna codebooks after compression, determines RI and used pre-coding matrix after the configured information of base station transmission is received;According to the combined coding of setting rule, RI combined coding values corresponding with the first PMI of the first code book index for indicating the pre-coding matrix are determined;According to the feedback model indicated in the configured information, at the feedback moment of setting, the combined coding value of determination is sent to base station, at the feedback moment of another setting, the 2nd PMI and CQI of the second code book index for indicating the pre-coding matrix is sent to base station.It is achieved thereby that in the case of 4 antenna ports, the feedback of channel condition information is carried out based on enhanced code book.

Description

A kind of transmission method and device of the channel condition information based on code book

Technical field

The present invention relates to communication technical field, the transmission method of more particularly to a kind of channel condition information based on code book and Device.

Background technology

At present, Long Term Evolution enhancing (Long Term Evolution-Advanced, LTE-A) system supports 10 kinds of transmission Pattern, 4 kinds of Physical Uplink Control Channel (Physical Downlink Control Channel, PUCCH) report pattern.Base In being semi-statically configured for high-level signaling, terminal (User Equipment, UE;Also referred to as user equipment) on PUCCH using such as PUCCH shown in table 1 reports pattern (Reporting Mode) to feed back different channel quality identification (Channel periodically Quality Indication, CQI), pre-coding matrix mark (Precoding Matrix Indication, PMI) and order refer to Show (Rank Indication, RI).

Table 1

Specifically, for every kind of transmission mode, it supports following PUCCH to report pattern:

Transmission mode 1:Pattern 1-0 and pattern 2-0.

Transmission mode 2:Pattern 1-0 and pattern 2-0.

Transmission mode 3:Pattern 1-0 and pattern 2-0.

Transmission mode 4:Pattern 1-1 and pattern 2-1.

Transmission mode 5:Pattern 1-1 and pattern 2-1.

Transmission mode 6:Pattern 1-1 and pattern 2-1.

Transmission mode 7:Pattern 1-0 and pattern 2-0.

Transmission mode 8:Reported if UE is configured to PMI/RI, support pattern 1-1 and pattern 2-1;

Reported if UE is configured without PMI/RI, support pattern 1-0 and pattern 2-0.

Transmission mode 9:If UE is configured to, PMI/RI is reported and CSI-RS port numbers are more than 1, supports pattern 1-1 and pattern 2-1;

If UE is configured without, PMI/RI is reported or CSI-RS port numbers are 1, supports pattern 1-0 and pattern 2-0.

Transmission mode 10:If UE is configured to, PMI/RI is reported and CSI-RS port numbers are more than 1, supports pattern 1-1 and mould Formula 2-1;

If UE is configured without, PMI/RI is reported or CSI-RS port numbers are 1, supports pattern 1-0 and pattern 2-0.

Wherein, pattern 1-1 is reported to be used to feed back RI, broadband PMI and broadband CQI.

In PMI calculating, when antenna port number (CRS ports or CSI-RS ports) is 4, used code book (Codebook) as shown in table 2:

Table 2

However, the feedback accuracy in order to improve channel condition information in the case of 4 antenna ports, LTE-A redactions (R12, Release-12 the code book to 4 antenna ports is strengthened in).The possible enhanced scheme of code book includes:

Code book enhanced scheme 1:

and Y∈{e1,e2,e3,e4And α (i)=q1 2(i-1)

and(Y1,Y2)=(ei,ek)∈{(e1,e1),(e2,e2),(e3,e3),(e4,e4),(e1,e2),(e2,e3),(e1, e4),(e2,e4)};

Or;

Code book enhanced scheme 2:

and Y∈{e1,e2,e3,e4And α (i)=q1 2(i-1)

For rank 2,

and

and

Wherein, in above two enhanced scheme in the case of Rank3 and Rank4, the code of existing 4 antenna port is still continued to use This.

The user of redaction (R12) may be used also in addition to PMI feedbacks being carried out using the code book in table 2 in lte-a system To select the feedback that channel condition information is carried out using enhanced code book.Strengthen code book and use different code books from existing code book Structure, is in particular in:Code book index one pre-coding matrix of correspondence in existing code book, and will be adopted in enhanced code book Corresponding to a pre-coding matrix in a pre-coding matrixes, i.e., enhanced code book with two code book indexes needs by a pair of code books Index (being designated as the first code book index and the second code book index) and determine that therefore, existing PUCCH Mode1-1 can not support user to make RI, broadband PMI, broadband CQI and subband CQI feedback are carried out with enhanced code book.

In summary, in the case of 4 antenna ports, there is presently no carry out channel condition information based on enhanced code book Feedback concrete scheme.

The content of the invention

The embodiments of the invention provide a kind of transmission method and dress of the channel condition information based on code bookPut, for solving In the case of 4 antenna ports, there is presently no the specific side for the feedback that channel condition information is carried out based on enhanced code book The problem of case.

The embodiments of the invention provide a kind of sending method of the channel condition information based on code book, including:

Terminal receive base station transmission configured information after, from 4 antenna codebooks after compression, determine order instruction RI with And used pre-coding matrix;

The terminal according to the combined coding of setting rule, determine the RI with for indicating the of the pre-coding matrix The corresponding combined coding values of the first pre-coding matrix instruction PMI of one code book index;

The terminal is according to the feedback model indicated in the configured information, at the feedback moment of setting, by the connection of determination Compile in collaboration with code value and be sent to the base station, at the feedback moment of another setting, by for indicating the second of the pre-coding matrix The 2nd PMI and channel quality indicator (CQI) of code book index are sent to the base station;

Wherein, 4 antenna codebooks refer to the configuration of 4 pilot frequency ports it is lower be used to carrying out pre-coding matrix instruction feedback and comprising The code book of first code book index and the second code book index, the span of the first code book index is 0~N-1, and wherein N is more than 1 Integer;4 antenna codebooks after the compression refer to corresponding first precoding of the first code book index in 4 antenna codebook The code book that set of matrices is obtained after being compressed, the first pre-coding matrix set after the compression is pre- comprising first before compression Part pre-coding matrix in encoder matrix set.

The embodiments of the invention provide a kind of method of reseptance of the channel condition information based on code book, including:

Base station to terminal send configured information, the configured information be used for indicate the terminal feeding back channel state information with And feedback model used in this feedback;

The base station is according to the feedback model, at the feedback moment of setting, receives the RI and first that the terminal is sent PMI combined coding value, and be used for 4 days after instruction is compressed what terminal described in another feedback set reception was sent 2nd PMI and CQI of the second code book index of pre-coding matrix in line code sheet;

The base station is according to the combined coding of setting rule, it is determined that the corresponding RI of the combined coding value received and described First code book index of pre-coding matrix;

Wherein, 4 antenna codebooks refer to the configuration of 4 pilot frequency ports it is lower be used to carrying out pre-coding matrix instruction feedback of the information and Code book comprising the first code book index and the second code book index, the span of the first code book index is 0~N-1, and wherein N is big In 1 integer;4 antenna codebooks after the compression refer to that corresponding to the first code book index in 4 antenna codebook first is pre- The code book that encoder matrix set is obtained after being compressed, the first pre-coding matrix set after the compression includes the before compression Part pre-coding matrix in one pre-coding matrix set.

The embodiments of the invention provide a kind of terminal, including:

First determining module, for after the configured information of base station transmission is received, from 4 antenna codebooks after compression, Determine RI and used pre-coding matrix;

Second determining module, for the combined coding rule according to setting, determines that the RI indicates described prelist with being used for The corresponding combined coding values of the first pre-coding matrix instruction PMI of first code book index of code matrix;

Feedback module, for according to the feedback model indicated in the configured information, at the feedback moment of setting, will determine Combined coding value be sent to the base station, another setting the feedback moment, by for indicating the pre-coding matrix The 2nd PMI and channel quality indicator (CQI) of second code book index are sent to the base station;

Wherein, 4 antenna codebooks refer to the configuration of 4 pilot frequency ports it is lower be used to carrying out pre-coding matrix instruction feedback and comprising The code book of first code book index and the second code book index, the span of the first code book index is 0~N-1, and wherein N is more than 1 Integer;4 antenna codebooks after the compression refer to corresponding first precoding of the first code book index in 4 antenna codebook The code book that set of matrices is obtained after being compressed, the first pre-coding matrix set after the compression is pre- comprising first before compression Part pre-coding matrix in encoder matrix set.

The embodiments of the invention provide a kind of base station, including:

Sending module, for sending configured information to terminal, the configured information is used to indicate the terminal feedback channel Feedback model used in status information and this feedback;

Receiving module, for according to the feedback model, at the feedback moment of setting, receive RI that the terminal sends with First PMI combined coding value, and after terminal transmission described in another feedback set reception is for indicating to compress 4 antenna codebooks in pre-coding matrix the second code book index the 2nd PMI and CQI;

Processing module, for according to setting combined coding rule, it is determined that the corresponding RI of the combined coding value received with And the first code book index of the pre-coding matrix;

Wherein, 4 antenna codebooks refer to the configuration of 4 pilot frequency ports it is lower be used to carrying out pre-coding matrix instruction feedback of the information and Code book comprising the first code book index and the second code book index, the span of the first code book index is 0~N-1, and wherein N is big In 1 integer;4 antenna codebooks after the compression refer to that corresponding to the first code book index in 4 antenna codebook first is pre- The code book that encoder matrix set is obtained after being compressed, the first pre-coding matrix set after the compression includes the before compression Part pre-coding matrix in one pre-coding matrix set.

In the embodiment of the present invention, terminal is after the configured information of base station transmission is received, from 4 antenna codebooks after compression In, determine RI and used pre-coding matrix;According to the combined coding of setting rule, determine that the RI indicates that this is pre- with being used for The corresponding combined coding values of the first PMI of first code book index of encoder matrix;And according to the feedback indicated in configured information Pattern, at the feedback moment of setting, is sent to base station, and at next feedback moment, will be used for by the combined coding value of determination Indicate that the 2nd PMI and CQI of the second code book index of the pre-coding matrix is sent to base station;

Base station sends configured information to terminal, with used in instruction terminal feeding back channel state information and this feedback Feedback model;According to the feedback model, at the feedback moment of setting, the RI that receiving terminal is sent combines volume with the first PMI's Code value, the 2nd PMI and CQI sent in the feedback reception terminal of another setting;And according to the combined coding of setting Rule, it is determined that the corresponding RI of the combined coding value received and the first code book index;

It can be seen that, the transmission method and device of channel condition information provided in an embodiment of the present invention pass through 4 antennas after compression Corresponding relation defined in code book and the combined coding of setting rule, in the case of realizing 4 antenna ports, based on enhanced Code book carries out the feedback of channel condition information.

Brief description of the drawings

Fig. 1 is the schematic flow sheet of the sending method of the channel condition information provided in an embodiment of the present invention based on code book;

Fig. 2 is the schematic flow sheet of the method for reseptance of the channel condition information provided in an embodiment of the present invention based on code book;

Fig. 3 is the structural representation of the first terminal provided in an embodiment of the present invention;

Fig. 4 is the structural representation of the first base station provided in an embodiment of the present invention;

Fig. 5 is the structural representation of second of terminal provided in an embodiment of the present invention;

Fig. 6 is the structural representation of second of base station provided in an embodiment of the present invention.

Embodiment

The present invention is real by the corresponding relation defined in 4 antenna codebooks after compression and the combined coding of setting rule Show in the case of 4 antenna ports, the feedback of channel condition information is carried out based on enhanced code book.

In order to support double PMI feedbacks, in the case that antenna port (CRS ports or CSI-RS ports) number is 8, on PUCCH Report pattern 1-1 further supports following two subpatterns (Submode):

Submode 1:Include 2 class Report Types:Report Type 5, for feeding back RI and the first PMI;Report Type 2b, is used In feedback CQI and the 2nd PMI;

Submode 2:Include 2 class Report Types:Report Type 3, for feeding back RI;Report Type 2c, for feeding back CQI, the first PMI and the 2nd PMI.

In the case of 4 antenna ports, the pre-coding matrix in enhanced code book is by corresponding first precodings of the first PMI Each precoding square in the second pre-coding matrix set corresponding with the 2nd PMI of each pre-coding matrix in set of matrices Battle array, is formed according to the enhanced scheme of setting, and the number for the pre-coding matrix that enhanced code book is included is the first pre-coding matrix Gather the number for the pre-coding matrix that the pre-coding matrix set of number × second of the pre-coding matrix included is included, and after strengthening Code book in each pre-coding matrix need determined jointly by the first PMI and the 2nd PMI.Therefore, existing PUCCH Mode 1-1 can not support to carry out RI, broadband PMI (including the first PMI and the 2nd PMI), broadband CQI using enhanced code book With subband CQI feedback;It can be allowed using the method similar with 8 antenna ports and also support Submode 1 in the case of 4 antenna ports With Submode 2.

However, due to the number and 8 antenna port feelings of the pre-coding matrix in enhanced code book in the case of 4 antenna ports The number of pre-coding matrix under condition in code book is different, therefore, the feedback of the PUCCH patterns 1-1 of 8 antenna ports subpattern 1 Method can not directly apply to the feedback of 4 antenna ports.

The embodiments of the invention provide a kind of transmission method and dress of the channel condition information based on code bookPut, to solve In the case of 4 antenna ports, the problem of feedback of channel condition information is carried out based on enhanced code book;The embodiment of the present invention In, in the case of 4 antenna ports, PUCCH reports pattern 1-1 also to support the PUCCH of similar 8 antenna port to report pattern 1-1's Subpattern 1, i.e., including one feedback RI and the first PMI combined coding value Report Type and one feedback the 2nd PMI and CQI Report Type, RI, the first PMI, the 2nd PMI and CQI are reported using above-mentioned pattern cycle.

Because the code book enhanced scheme that may be used in the case of 4 antenna ports includes needing to use 4 ratios in the case of RI=1 Spy represents that the first PMI and 4 bits represent to need to use 4 bits to represent the first PMI and 4 bit tables in the case of the 2nd PMI, RI=2 Show and be respectively necessary for representing that the first PM and 4 bits represent second using 0 bit in the case of the 2nd PMI, and RI=3 and RI=4 PMI, therefore, RI and the first PMI carry out including 2 after combined coding4+24+20+20=34 kinds of states are, it is necessary to which 6 bits are fed back.

Bigger in view of the RI and the information bit of the first PMI combined coding value that report, its transmission reliability is lower, And the 2nd PMI and CQI of subsequent feedback is all based on what the RI fed back and the first PMI was calculated, therefore, RI and the first PMI Combined coding value error code occurs in feedback procedure, can cause to go out in next two PMI and CQI of feedback cycle internal feedback It is wrong.In the case of 4 antenna ports, in order to ensure PUCCH transmission reliability, it is necessary to press the code book of 4 antenna ports Contracting, enables information bit after RI and the first PMI combined codings to be no more than the corresponding bit number of the bit error rate that system is tolerated.

Describe for convenience,, can in the case of 4 antenna ports according to the preferred structure of code book used in 8 antenna ports The code book for the code book enhanced scheme formation that can be used is represented using following two-dimensional table:

Definition:

1st, 4 antenna codebooks obtained using code book enhanced scheme 1 are as shown in table 3A and table 3B, wherein, i1With i2It is code book Index, i1Represent the first code book index, i2Represent the second code book index.

Table 3A:RI=1 code book;

Table 3B:RI=2 code book;

2nd, 4 antenna codebooks obtained using code book enhanced scheme 2 are as shown in table 4A and table 4B, wherein, i1With i2It is code book Index, i1Represent the first code book index, i2Represent the second code book index.

Table 4A:RI=1 code book;

Table 4B:RI=2 code book;

It should be noted that the structure of above-mentioned 4 antenna codebooks enumerated be intended merely to description it is convenient and provide it is a kind of excellent The realization of choosing, be not in the restriction of the structure to 4 antenna codebooks, 4 antenna codebooks the first code book index and pre-coding matrix it Between, and/or the second code book index and pre-coding matrix between can using other it is corresponding order, change 4 antenna codebooks in advance Encoder matrix does not influence 4 antenna codebook with the corresponding order of the first code book index and pre-coding matrix and the second code book index Performance.

The code book compression scheme that the embodiment of the present invention is provided is all based on upper table 3A~table 3B and table 4A~table 4B Corresponding order between the first shown code book index and pre-coding matrix between the second code book index and pre-coding matrix And design.For a code book compression scheme, if change before compression the first code book index of code book and pre-coding matrix it Between between the second code book index and pre-coding matrix it is corresponding order, after the compression that corresponding code book compression scheme is obtained The value of first code book index should be adjusted accordingly, but should regard as being same code book compression scheme;

That is, for two code book compression schemes, if the pre-coding matrix number included in code book after compression is identical, and For any pre-coding matrix in the code book after any one compression, it can be found from the code book after another compression Exactly the same pre-coding matrix, then it is assumed that the two code book compression schemes are compression schemes of the same race.

The embodiment of the present invention is described in further detail with reference to Figure of description.

It is shown in Figure 1, should the embodiments of the invention provide a kind of sending method of the channel condition information based on code book Method includes:

Step 11, terminal from 4 antenna codebooks after compression, determine RI after the configured information of base station transmission is received And used pre-coding matrix;

Wherein, the configured information is used for the feedback of instruction terminal progress channel condition information, and indicates this feedback institute The feedback model used;

It is preferred that, the configured information can pass through control signaling (such as Downlink Control Information (Downlink Control Information, DCI)) send.

In this step, terminal can according to transmission characteristic and/or terminal capability, from 4 antenna codebooks after compression, it is determined that RI and used pre-coding matrix.

Step 12, terminal according to the combined coding of setting rule, determine the RI with for indicating the of the pre-coding matrix The corresponding combined coding values of the first PMI of one code book index;

Wherein, RI and the first PMI combined coding value (is designated as I defined in combined coding ruleRI/PMI1), RI, with And the corresponding relation in 4 antenna codebooks after compression between the first code book index of pre-coding matrix, the first PMI is for indicating First code book index of pre-coding matrix in 4 antenna codebooks after compression, and with precoding square in 4 antenna codebooks after the compression First code book index of battle array is corresponded.

Step 13, terminal are according to the feedback model indicated in configured information, at the feedback moment of setting, by the joint of determination Encoded radio is sent to base station, and at the feedback moment of another setting, the 2nd PMI and CQI of pre-coding matrix is sent into base Stand.

Wherein, the 2nd PMI is used for the second code book index for indicating pre-coding matrix in 4 antenna codebooks after compression, and Corresponded with the second code book index of pre-coding matrix in 4 antenna codebooks after the compression.

In the embodiment of the present invention, 4 antenna codebooks, which refer to that 4 pilot frequency port configurations are lower, to be used to carry out pre-coding matrix instruction letter Breath the feeds back and code book comprising the first code book index and the second code book index, the span of the first code book index is 0~N- 1, wherein N are the integer more than 1;4 antenna codebooks after the compression refer to corresponding to the first PMI in above-mentioned 4 antenna codebook The code book that one pre-coding matrix set is obtained after being compressed, and before the first pre-coding matrix set after the compression is comprising compression The first pre-coding matrix set in part pre-coding matrix.

Specifically, 4 antenna codebooks after being compressed in the embodiment of the present invention are the first pre-coding matrix set after compressing And the second corresponding second pre-coding matrix set of code book index, obtained using the code book enhanced scheme of setting;4 after compression Part pre-coding matrix in 4 antenna codebooks before compression is included in antenna codebook.

In force, in order to reduce RI bit numbers corresponding with the first PMI combined coding value, in 4 antenna codebooks The corresponding first pre-coding matrix set of first code book index is compressed, so as to determined based on 4 antenna codebooks after compression The total number of RI and the first PMI combined coding value is not more than 2N, wherein, N is the corresponding biography of the bit error rate that system can be tolerated Defeated bit number;

If for example, system can tolerate the bit error rate under 5 bit informations, i.e. N=5, then based on 4 antennas after compression The RI and the total number of the first PMI combined coding value that code book is determined are not more than 25=32, i.e. RI and the first PMI combined coding Value can only take 0~31;

If system can tolerate the bit error rate under 4 bit informations, i.e. N=4, then determined based on 4 antenna codebooks after compression RI and the first PMI total number of combined coding value be not more than 24=16, i.e. RI and the first PMI combined coding value can only take 0~15.

In the embodiment of the present invention, the first pre-coding matrix set after compression includes the first pre-coding matrix collection before compression Part pre-coding matrix in conjunction, that is, before the pre-coding matrix that the first pre-coding matrix set after compressing is included is still for compression Pre-coding matrix in first pre-coding matrix set, the precoding square that the first pre-coding matrix set after simply compressing is included The number of battle array is less than the pre-coding matrix that the first pre-coding matrix set before compression is included, so that based on 4 antennas after compression The RI and the total number of the first PMI combined coding value that code book is determined are not more than 2N

For example, being corresponding first pre-coding matrix of the first code book index in 1 code book such as by order in 4 antenna codebooks It is the corresponding first precoding square of the first code book index in 2 code book to gather boil down to only comprising 15 pre-coding matrixes, and order Battle array set boil down to only includes 15 pre-coding matrixes, then the RI's and the first PMI based on the 4 antenna codebooks determination after the compression The total number of combined coding value can be at least 31, it is only necessary to which 5 bits are represented;

And for example, it is the corresponding first pre-coding matrix collection combined pressure of the first code book index in 1 code book by order in 4 antenna codebooks It is the corresponding first pre-coding matrix collection combined pressure of the first code book index in 2 code book to be condensed to only comprising 8 pre-coding matrixes, and order It is condensed to only comprising 8 pre-coding matrixes, then the RI and the first PMI combined coding determined based on 4 antenna codebooks after the compression The total number of value can be at least 18, it is only necessary to which 5 bits are represented;Etc..

In force, the first pre-coding matrix set after compression uses following any preferred structure:

Mode one, the pre-coding matrix in the first pre-coding matrix set before compression is divided intoGroup, wherein every group of bag The pre-coding matrix contained has identical discrete Fourier transform (Discrete Fourier Transform, DFT) vector;From It is any in the pre-coding matrix that every group includes to choose one, it is used as the precoding square in the first pre-coding matrix set after compression Battle array.

Further, row of the DFT vectors that each pre-coding matrix in every group is included in different pre-coding matrixes Row order may be different.

Based on the first code book index shown in table 3A, table 3B, table 4A and table 4B, the second code book index and pre-coding matrix Sequentially, the code book compression scheme of which one is specially correspondence:

Pre-coding matrix in the first pre-coding matrix set before compression is divided intoGroup, wherein every group includes one the The pre-coding matrix and the first code book index that one code book index is n bePre-coding matrix, n span isAny from every group of pre-coding matrix to choose one, the first pre-coding matrix set after the compression is comprising all The pre-coding matrix selected;

Specifically, so that N takes 16 as an example, the pre-coding matrix in the first pre-coding matrix set before compression is divided into 8 groups, Every group comprising first code book index be n pre-coding matrix and first code book index be n+8 pre-coding matrix, from It is any in every group of pre-coding matrix to choose one, the first pre-coding matrix set after the compression comprising it is all select prelist Code matrix, wherein, n=0,1,2 ..., 15;

No matter use code book enhanced scheme 1 or use n-th first yard in code book enhanced scheme 2, enhanced code book Included in corresponding first pre-coding matrix of this index the first pre-coding matrix corresponding with the n-th+8 the first code book indexes Column vector set is identical, the difference is that only its difference that puts in order respectively arranged, specific as follows:

(1) so that N takes 16 as an example, as RI=1, the first code book index is n and the first code book index is n+8 institutes Comprising pre-coding matrix as shown in table 5A and table 5B:

Table 5A:First code book index is n

Table 5B:First code book index is n

Two groups of pre-coding matrixes in contrast table 5A and table 5B on relevant position, it can be seen that DFT corresponding to both to Measure vmIt is identical, the difference is that onlyArrangement of phase difference of pi/8, the i.e. DFT vector in different pre-coding matrixes is suitable Sequence is different, according to the rule of the codebook design under dual-polarized antenna array, vmFor quantifying beam direction,It is bipolar for quantifying Change the phase between array, therefore, using 4 antenna codebooks (i.e. a pair of 4 antennas of employing mode after compression under dual-polarized array Code book is compressed) with influenceing minimum to the first PMI and the 2nd PMI feedback performances using 4 antenna codebooks before compression.

Based on the first code book index shown in table 3A, table 3B, table 4A and table 4B, the second code book index and pre-coding matrix Correspondence order, as a kind of preferred structure, the first pre-coding matrix set after the compression includes the first precoding before compression The first code book index is in set of matricesPre-coding matrix.

For example, so that N takes 16 as an example, in the case of RI=1, using code book enhanced scheme 1 or the shape of code book enhanced scheme 2 Into 4 antenna codebooks can be with boil down to as shown in table 6A structure:

Table 6A

Based on the first code book index shown in table 3A, table 3B, table 4A and table 4B, the second code book index and pre-coding matrix Correspondence order, as another preferred structure, the first pre-coding matrix set after the compression prelists comprising first before compression The first code book index is in code set of matricesPre-coding matrix.

For example, so that N takes 16 as an example, in the case of RI=1, using code book enhanced scheme 1 or the shape of code book enhanced scheme 2 Into 4 antenna codebooks can be with boil down to as shown in table 6B structure:

Table 6B

The first code book index can be continued to use before compression under the preferred structure, in 4 antenna codebooks after compression first prelists First yard in 4 antenna codebooks in corresponding first code book index of pre-coding matrix in code set of matrices, such as table 6B after the compression This index is 8~15, or the pre-coding matrix that the first pre-coding matrix set after compression is included is renumberd (i.e. Redefine corresponding first code book index of each pre-coding matrix), such as the first code book index in 4 antenna codebooks after the compression For 0~8, as long as ensureing that terminal is consistent to the understanding of the first code book index in 4 antenna codebooks after compression with base station.

(2) so that N takes 16 as an example, as RI=2, the first code book index is n and the first code book index is n+8 institutes Comprising pre-coding matrix as shown in table 7A and table 7B:

Table 7A:First code book index is n, and using code book enhanced scheme 1

Table 7B:First code book index is n+8, and using code book enhanced scheme 1:

Two groups of pre-coding matrixes in contrast table 7A and table 7B on relevant position, it can be seen that find both corresponding vm Vector is identical or vmWith vm′Numbering difference be identical, the difference is that only the phase between dual-polarized array, because This, using 4 antenna codebooks after compression and using 4 antenna codebooks before compression to the first PMI and second under dual-polarized array The influence of PMI feedback performances is minimum.

As a kind of preferred structure, the first pre-coding matrix set after the compression includes the first precoding square before compression The first code book index is in battle array setPre-coding matrix.

For example, in the case of RI=1, using 4 antenna codebooks of the formation of code book enhanced scheme 1 can be with boil down to such as table Structure shown in 8A:

Table 8A

For example, in the case of RI=2, using 4 antenna codebooks of the formation of code book enhanced scheme 2 can be with boil down to such as table Structure shown in 8B:

Table 8B

As another preferred structure, the first pre-coding matrix set after the compression includes the first precoding before compression The first code book index is in set of matricesPre-coding matrix.

The first code book index can be continued to use before compression under the preferred structure, in 4 antenna codebooks after compression first prelists Corresponding first code book index of pre-coding matrix in code set of matrices, or to the first pre-coding matrix set after compression Comprising pre-coding matrix renumber and (redefine corresponding first code book index of each pre-coding matrix), such as the compression The first code book index is 0~8 in 4 antenna codebooks afterwards, as long as ensureing terminal with base station in 4 antenna codebooks after compression first The understanding of code book index is consistent.

It should be noted that based on the first code book index shown in table 3A, table 3B, table 4A and table 4B, the second code book index Under order corresponding with pre-coding matrix, which, so that N takes 16 as an example, the first code book index pair in 4 antenna codebooks after compression The individual pre-coding matrix set W for including 8 pre-coding matrixes of Ying Yuyi1, such as:

And for example,

The compress mode ensure that in 4 antenna codebooks after compression comprising 32 different discrete Fourier transforms (Discrete Fourier Transform, DFT) vector vm=[1 ej2πm/32]T, m=0 ..., 31.

Mode two, the pre-coding matrix in the first pre-coding matrix set before compression is divided intoGroup, wherein, in every group Two pre-coding matrixes first row DFT vector for adjacent DFT vector;It is any from every group of pre-coding matrix to choose one, It is used as the pre-coding matrix in the first pre-coding matrix set after compression.

Wherein, so-called adjacent DFT vectors refer to, vm=[1 ej2πm/32]TMiddle m takes two that adjacent two values are obtained Individual DFT vectors, such as vmAnd vm+1

Based on the first code book index shown in table 3A, table 3B, table 4A and table 4B, the second code book index and pre-coding matrix Sequentially, the code book compression scheme of which two is specially correspondence:

The first pre-coding matrix set after the compression includes the first code book in the first pre-coding matrix set before compression Index the pre-coding matrix for even number or odd number;

No matter use code book enhanced scheme 1 or use in code book enhanced scheme 2, enhanced code book and take the first code book rope The pre-coding matrix (or taking the pre-coding matrix that the first code book index is odd number) of even number is cited as, can enter quantization beam direction The uniform rarefaction of row, therefore, using 4 antenna codebooks (i.e. two pair of 4 antenna codebook of employing mode after compression under dual-polarized array It is compressed) with influenceing minimum to the first PMI and the 2nd PMI feedback performances using 4 antenna codebooks before compression.

For example, so that N takes 16 as an example, in the case of RI=1, using code book enhanced scheme 1 or the shape of code book enhanced scheme 2 Into 4 antenna codebooks can be with boil down to as shown in table 9A or the structure as shown in table 9B:

Table 9A

Table 9B

For example, so that N takes 16 as an example, can using 4 antenna codebooks of the formation of code book enhanced scheme 1 in the case of RI=2 With structure of the boil down to as shown in table 10A:

Table 10A

It should be noted that in the case of RI=2, using 4 antenna codebooks of the formation of code book enhanced scheme 1 can be with boil down to Only comprising structure and table 10A of the first code book index in the first pre-coding matrix set before compression for the pre-coding matrix of odd number Shown structure is similar, will not enumerate herein.

For example, so that N takes 16 as an example, can using 4 antenna codebooks of the formation of code book enhanced scheme 2 in the case of RI=2 With structure of the boil down to as shown in table 10B:

Table 10B

It should be noted that in the case of RI=2, using 4 antenna codebooks of the formation of code book enhanced scheme 2 can be with boil down to Only comprising structure and table 10B of the first code book index in the first pre-coding matrix set before compression for the pre-coding matrix of odd number Shown structure is similar, will not enumerate herein.

Under which, the first code book index can continue to use the first precoding square before compression in 4 antenna codebooks after compression The first code book index is 0 in 4 antenna codebooks after corresponding first code book index of pre-coding matrix in battle array set, such as compression, 2,4 ... ..., 14 or 1,3,5 ... ..., 15, or the precoding square included to the first pre-coding matrix set after compression Battle array renumbers and (redefines corresponding first code book index of each pre-coding matrix), 4 antenna codebooks after such as compression In the first code book index be 0~8, as long as ensureing the reason of terminal and base station to the first code book index in 4 antenna codebooks after compression Solution is consistent.

It should be noted that under which, based on the first code book index shown in table 3A, table 3B, table 4A and table 4B, second Code book index order corresponding with pre-coding matrix, so that N takes 16 as an example, the first code book index pair in 4 antenna codebooks after compression The individual pre-coding matrix set W for including 8 pre-coding matrixes of Ying Yuyi1, such as:

Or,

The compress mode ensure that in 4 antenna codebooks after compression comprising 16 equally spaced DFT vectorsOr vm=[1 ej2πm/32]T, m=1,3 ..., 15.

In order to further improve PUCCH transmission reliability, RI and the first PMI combined coding value can be further reduced Information bit, for example, RI and the first PMI combined coding value information bit are reduced into 4 bits, it is preferred that should The first pre-coding matrix set after compression can also use following preferred structure:

Mode three, it is any choose employing mode one or employing mode two be compressed after the first pre-coding matrix set in Part pre-coding matrix, regard the pre-coding matrix of selection as the first pre-coding matrix set after final compression.

For example, from employing mode one or employing mode two be compressed after the first pre-coding matrix set in arbitrarily choose 7 pre-coding matrixes are as the first pre-coding matrix set after final compression, to cause RI and the first PMI combined coding value Information bit be 4 bits.

For example, in the case of RI=1, the first pre-coding matrix set after being compressed to employing mode one is carried out Further compression, obtains the structure as shown in table 11A, wherein, using code book enhanced scheme 1 or 2;

Table 11A:RI=1 and use code book enhanced scheme 1 or 2

For example, so that N takes 16 as an example, in the case of RI=2, the first precoding after being compressed to employing mode one Set of matrices is further compressed, and obtains the structure as shown in table 11B, wherein, using code book enhanced scheme 1;

Table 11B:RI=2 and use code book enhanced scheme 1

For example, so that N takes 16 as an example, in the case of RI=2, the first precoding after being compressed to employing mode one Set of matrices is further compressed, and obtains the structure as shown in table 11C, wherein, using code book enhanced scheme 2:

Table 11C:RI=2 and use code book enhanced scheme 2

In force, 4 antenna codebooks after the compression use following structure:

Order is combined into the first precoding after compression for the corresponding first pre-coding matrix collection of the first code book index in 1 code book Set of matrices;And/or,

Order is combined into the first precoding after compression for the corresponding first pre-coding matrix collection of the first code book index in 2 code book Set of matrices.

Specifically include situations below:

First, in 4 antenna codebook, order uses either type in one~mode of aforesaid way three to compress for 1 code book, and order Do not compressed for 2 code book;

2nd, in 4 antenna codebook, order uses either type in one~mode of aforesaid way three to compress for 1 code book, and order Either type in one~mode of aforesaid way three is used to compress for 2 code book;

3rd, in 4 antenna codebook, order is not compressed for 1 code book, and order uses one~mode of aforesaid way for 2 code book Either type is compressed in three.

Further, in step 12, terminal determines that the RI indicates the precoding with being used for according to the combined coding rule of setting The corresponding combined coding values of the first PMI of first code book index of matrix, wherein, the combined coding rule of setting is specifically included:

If order prelists for the corresponding first pre-coding matrix collection of the first code book index in 1 code book is combined into after compression first Code set of matrices, then in combined coding rule the corresponding combined coding values of RI=1 and the number of the first code book index with pressure The number for the pre-coding matrix that the first pre-coding matrix set after contracting is included is identical, and each combined coding value correspondence one is not The first same code book index;

If order prelists for the corresponding first pre-coding matrix collection of the first code book index in 2 code book is combined into after compression first Code set of matrices, then in combined coding rule the corresponding combined coding values of RI=2 and the number of the first code book index with pressure The number for the pre-coding matrix that the first pre-coding matrix set after contracting is included is identical, and each combined coding value correspondence one is not The first same code book index.

So that N takes 16 as an example, combined coding rule is illustrated:

1st, RI=1 code book employing mode one is compressed, and RI=2 code book does not compress, then RI combines with the first PMI Totally 5 bit information after coding, corresponding combined coding rule is as shown in table 12A:

Table 12A

2nd, RI=1 code book and the equal employing mode one of RI=2 code book are compressed, then RI and the first PMI combined codings Totally 5 bit information afterwards, corresponding combined coding rule is as shown in table 12B:

Table 12B

3rd, RI=1 code book is not compressed, and RI=2 code book employing mode one is compressed, then RI and the first PMI joints are compiled Totally 5 bit information after code, corresponding combined coding rule is as shown in table 12C:

Table 12C

4th, RI=1 code book employing mode one is compressed, and RI=2 code book does not compress, then RI and the first PMI joints are compiled Totally 5 bit information after code, corresponding combined coding rule is as shown in table 12D:

Table 12D

5th, RI=1 code book employing mode two is compressed, and RI=2 code book employing mode one is compressed,

Then totally 5 bit informations after RI and the first PMI combined codings, corresponding combined coding rule is as shown in table 12E:

Table 12E

6th, RI=1 code book employing mode two is compressed, and RI=2 code book employing mode two is compressed, then RI and Totally 5 bit informations after first PMI combined codings, corresponding combined coding rule is as shown in table 12F:

Table 12F

7th, RI=1 code book is not compressed, and RI=2 code book employing mode two is compressed, then RI and the first PMI joints are compiled Totally 5 bit information after code, corresponding combined coding rule is as shown in table 12G:

Table 12G

8th, RI=1 code book and the equal employing mode three of RI=2 code book are compressed, RI=2 code book employing mode three It is compressed, then totally 4 bit informations after RI and the first PMI combined codings, corresponding combined coding rule is as shown in table 12H:

Table 12H

It should be noted that only listing 8 kinds of preferred code book compression schemes above, provide according to embodiments of the present invention Compress mode (i.e. one~mode of mode three), in addition to other code book compression schemes, such as RI=1 code book employing mode one are carried out Compression and RI=2 code book employing mode two are compressed, and and for example, RI=1 code book employing mode three is compressed and RI=2 Code book employing mode two be compressed, for another example, RI=1 code book employing mode three is compressed and RI=2 code book is not pressed Contracting, etc., because the regular combined coding rule corresponding with above-mentioned 8 kinds preferred code book compression schemes of combined coding is similar, this Place is no longer illustrated one by one.

In the embodiment of the present invention, terminal and the structure of 4 antenna codebooks after compression used in base station can be true by terminal Base station is notified after fixed, terminal is notified after can also being determined by base station, can also be arranged by terminal with base station, can also be in association Provide, the structure of 4 antenna codebooks after used compression is managed between terminal and base station in view or standard as long as ensure that Solution is consistent;

The combined coding rule of setting, notifies base station after being determined by terminal, is notified eventually after can also being determined by base station End, can also be arranged with base station by terminal, can also be provided in agreement or standard, as long as ensure that terminal and base station Between it is consistent to the combined coding rule understanding of setting.

Based on above-described embodiment, the embodiment of the present invention additionally provides a kind of recipient of the channel condition information based on code book Method, shown in Figure 2, this method includes:

Step 21, base station send configured information to terminal, and the configured information is used for instruction terminal feeding back channel state information And feedback model used in this feedback;

It is preferred that, the configured information can be sent by control signaling (such as DCI).

Step 22, base station are according to the feedback model, the RI and the first PMI sent at the feedback moment of setting, receiving terminal Combined coding value, the precoding in 4 antenna codebooks that being used for of sending of another feedback reception terminal indicates after compression 2nd PMI and CQI of the second code book index of matrix;

Step 23, base station according to the combined coding of setting rule, it is determined that the corresponding RI of the combined coding value received and First code book index of the pre-coding matrix.

Wherein, RI and the first PMI combined coding value I defined in combined coding ruleRI/PMI1, RI and compression First code book index (i of pre-coding matrix in 4 antenna codebooks afterwards1) between corresponding relation.

Further, the first code book of base station pre-coding matrix in 4 antenna codebooks after the compression of terminal transmission is determined After index and the second code book index, it is possible to the pre-coding matrix that terminal is recommended is determined from 4 antenna codebooks after compression.

In the embodiment of the present invention, 4 antenna codebooks, which refer to that 4 pilot frequency port configurations are lower, to be used to carry out pre-coding matrix instruction letter Breath the feeds back and code book comprising the first code book index and the second code book index, the span of the first code book index is 0~N- 1, wherein N are the integer more than 1;4 antenna codebooks after the compression refer to corresponding to the first code book index in 4 antenna codebook The code book that first pre-coding matrix set is obtained after being compressed, and the first pre-coding matrix set after the compression includes compression Part pre-coding matrix in the first preceding pre-coding matrix set.

In force, the first pre-coding matrix set after compression uses following any preferred structure:

Mode one, the pre-coding matrix in the first pre-coding matrix set before compression is divided intoGroup, wherein every group of bag Two pre-coding matrixes contained have identical discrete Fourier transform DFT vectors;Appoint from every group of pre-coding matrix included Meaning chooses one, is used as the pre-coding matrix in the first pre-coding matrix set after compression;Specifically refer to retouching for end side State, here is omitted.

Mode two, the pre-coding matrix in the first pre-coding matrix set before compression is divided intoGroup, wherein, every group of bag The first row DFT vectors of two pre-coding matrixes contained are adjacent DFT vectors;Prelisted from every group;Specifically refer to end side Description, here is omitted.

In order to further improve PUCCH transmission reliability, RI and the first PMI combined coding value can be further reduced Information bit, for example, RI and the first PMI combined coding value information bit are reduced into 4 bits, it is preferred that should The first pre-coding matrix set after compression can also use following preferred structure:

Part pre-coding matrix in mode three, any the first pre-coding matrix set chosen after compression, by the pre- of selection Encoder matrix is used as the first pre-coding matrix set after final compression;Referring specifically to the description of end side, here is omitted.

For example, from employing mode one or employing mode two be compressed after the first pre-coding matrix set in arbitrarily choose 7 pre-coding matrixes are as the first pre-coding matrix set after final compression, to cause RI and the first PMI combined coding value Information bit be 4 bits.

In force, 4 antenna codebooks after the compression use following structure:

Order is combined into the first precoding after compression for the corresponding first pre-coding matrix collection of the first code book index in 1 code book Set of matrices;And/or,

Order is combined into the first precoding after compression for the corresponding first pre-coding matrix collection of the first code book index in 2 code book Set of matrices.

Specifically include situations below:

First, in 4 antenna codebook, order uses either type in one~mode of aforesaid way three to compress for 1 code book, and order Do not compressed for 2 code book;

2nd, in 4 antenna codebook, order uses either type in one~mode of aforesaid way three to compress for 1 code book, and order Either type in one~mode of aforesaid way three is used to compress for 2 code book;

3rd, in 4 antenna codebook, order is not compressed for 1 code book, and order uses one~mode of aforesaid way for 2 code book Either type is compressed in three.

Further, if order is combined into after compression for the corresponding first pre-coding matrix collection of the first code book index in 1 code book First pre-coding matrix set, then of the corresponding combined coding values of RI=1 and the first code book index during the combined coding is regular Number is identical with the number for the pre-coding matrix that the first pre-coding matrix set after compression is included, and each combined coding value pair A first different code book index is answered, referring specifically to the description of end side;

If order prelists for the corresponding first pre-coding matrix collection of the first code book index in 2 code book is combined into after compression first Code set of matrices, then in combined coding rule the corresponding combined coding values of RI=2 and the number of the first code book index with pressure The number for the pre-coding matrix that the first pre-coding matrix set after contracting is included is identical, and each combined coding value correspondence one is not The first same code book index, referring specifically to the description of end side.

Above method handling process can realize that the software program can be stored in storage medium with software program, when When the software program of storage is called, above method step is performed.

Based on same inventive concept, a kind of terminal is additionally provided in the embodiment of the present invention, because the terminal solves problem Principle is similar to the sending method of the above-mentioned channel condition information based on code book, therefore the implementation of the terminal may refer to be based on code The implementation of the sending method of this channel condition information, repeats part and repeats no more.

It is shown in Figure 3, terminal provided in an embodiment of the present invention, including:

First determining module 31, for after the configured information of base station transmission is received, from 4 antenna codebooks after compression In, determine RI and used pre-coding matrix;

Second determining module 32, for the combined coding rule according to setting, determines what the first determining module 31 was determined RI combined coding values corresponding with the first PMI of the first code book index for indicating the pre-coding matrix;

Feedback module 33, for according to the feedback model indicated in configured information, at the feedback moment of setting, by determination Combined coding value is sent to base station, at the feedback moment of another setting, by the second code book for indicating the pre-coding matrix The 2nd PMI and channel quality indicator (CQI) of index are sent to base station;

Wherein, 4 antenna codebooks refer to the configuration of 4 pilot frequency ports it is lower be used to carrying out pre-coding matrix instruction feedback of the information and Code book comprising the first code book index and the second code book index, the span of the first code book index is 0~N-1, and wherein N is big In 1 integer;4 antenna codebooks after compression refer to corresponding first pre-coding matrix of the first code book index in 4 antenna codebooks The code book that set is obtained after being compressed, the first pre-coding matrix set after compression includes the first pre-coding matrix before compression Part pre-coding matrix in set.

It is preferred that, the first pre-coding matrix set after compression uses following any preferred structure:

Mode one, the pre-coding matrix in the first pre-coding matrix set before compression is divided intoGroup, wherein every group of bag Two pre-coding matrixes contained have identical discrete Fourier transform DFT vectors;Appoint from every group of pre-coding matrix included Meaning chooses one, is used as the pre-coding matrix in the first pre-coding matrix set after compression;

Mode two, the pre-coding matrix in the first pre-coding matrix set before compression is divided intoGroup, wherein, every group of bag The first row DFT vectors of two pre-coding matrixes contained are adjacent DFT vectors;It is any from every group of pre-coding matrix to choose one It is individual, it is used as the pre-coding matrix in the first pre-coding matrix set after compression..

It is preferred that, the first pre-coding matrix set after compression can also use following preferred structure:

Part pre-coding matrix in mode three, any the first pre-coding matrix set chosen after compression, by the pre- of selection Encoder matrix is used as the first pre-coding matrix set after final compression.

It is preferred that, 4 antenna codebooks after compression use following structure:

Order is combined into the first precoding after compression for the corresponding first pre-coding matrix collection of the first code book index in 1 code book Set of matrices;And/or,

Order is combined into the first precoding after compression for the corresponding first pre-coding matrix collection of the first code book index in 2 code book Set of matrices.

Further, if order is combined into after compression for the corresponding first pre-coding matrix collection of the first code book index in 1 code book First pre-coding matrix set, then of the corresponding combined coding values of RI=1 and the first code book index during the combined coding is regular Number is identical with the number for the pre-coding matrix that the first pre-coding matrix set after compression is included, and each combined coding value pair Answer a first different code book index;

If order prelists for the corresponding first pre-coding matrix collection of the first code book index in 2 code book is combined into after compression first Code set of matrices, then in combined coding rule the corresponding combined coding values of RI=2 and the number of the first code book index with pressure The number for the pre-coding matrix that the first pre-coding matrix set after contracting is included is identical, and each combined coding value correspondence one is not The first same code book index.

Based on same inventive concept, a kind of base station is additionally provided in the embodiment of the present invention, because the base station solves problem Principle is similar to the method for reseptance of the above-mentioned channel condition information based on code book, therefore the implementation of the base station may refer to be based on code The implementation of the method for reseptance of this channel condition information, repeats part and repeats no more.

It is shown in Figure 4, base station provided in an embodiment of the present invention, including:

Sending module 41, for sending configured information to terminal, configured information is believed for instruction terminal fed-back channel status Feedback model used in breath and this feedback;

Receiving module 42, for according to the feedback model, at the feedback moment of setting, the RI and first of receiving terminal transmission PMI combined coding value, and it is used for 4 antenna codes after instruction is compressed what another feedback reception set terminal was sent 2nd PMI and CQI of the second code book index of pre-coding matrix in this;

Processing module 43, for the combined coding rule according to setting, it is determined that the corresponding RI of the combined coding value received And the first code book index of the pre-coding matrix;

Wherein, 4 antenna codebooks refer to the configuration of 4 pilot frequency ports it is lower be used to carrying out pre-coding matrix instruction feedback of the information and Code book comprising the first code book index and the second code book index, the span of the first code book index is 0~N-1, and wherein N is big In 1 integer;4 antenna codebooks after compression refer to corresponding first pre-coding matrix of the first code book index in 4 antenna codebooks The code book that set is obtained after being compressed, the first pre-coding matrix set after compression includes the first pre-coding matrix before compression Part pre-coding matrix in set.

It is preferred that, the first pre-coding matrix set after compression uses following any preferred structure:

Mode one, the pre-coding matrix in the first pre-coding matrix set before compression is divided intoGroup, wherein every group of bag Two pre-coding matrixes contained have identical discrete Fourier transform DFT vectors;Appoint from every group of pre-coding matrix included Meaning chooses one, is used as the pre-coding matrix in the first pre-coding matrix set after compression;

Mode two, the pre-coding matrix in the first pre-coding matrix set before compression is divided intoGroup, wherein, every group of bag The first row DFT vectors of two pre-coding matrixes contained are adjacent DFT vectors;It is any from every group of pre-coding matrix to choose one It is individual, it is used as the pre-coding matrix in the first pre-coding matrix set after compression.

It is preferred that, the first pre-coding matrix set after compression can also use following structure:

Part pre-coding matrix in mode three, any the first pre-coding matrix set chosen after compression, by the pre- of selection Encoder matrix is used as the first pre-coding matrix set after final compression.

It is preferred that, 4 antenna codebooks after compression include:

Order is combined into the first precoding after compression for the corresponding first pre-coding matrix collection of the first code book index in 1 code book Set of matrices;And/or,

Order is combined into the first precoding after compression for the corresponding first pre-coding matrix collection of the first code book index in 2 code book Set of matrices.

Further, if order is combined into after compression for the corresponding first pre-coding matrix collection of the first code book index in 1 code book First pre-coding matrix set, then of the corresponding combined coding values of RI=1 and the first code book index during the combined coding is regular Number is identical with the number for the pre-coding matrix that the first pre-coding matrix set after compression is included, and each combined coding value pair Answer a first different code book index;

If order prelists for the corresponding first pre-coding matrix collection of the first code book index in 2 code book is combined into after compression first Code set of matrices, then in combined coding rule the corresponding combined coding values of RI=2 and the number of the first code book index with pressure The number for the pre-coding matrix that the first pre-coding matrix set after contracting is included is identical, and each combined coding value correspondence one is not The first same code book index.

With reference to particular hardware structure, structure, processing mode to terminal provided in an embodiment of the present invention are illustrated.

Shown in Figure 5, the terminal at least includes:Memory 51, processor 52 and antenna 53, wherein:

At least be stored with 4 antenna codebooks after compressing in memory 51, and the combined coding of setting is regular;

Antenna 53 receives the configured information that base station is sent, and triggers the feedback that processor 52 performs channel condition information;

Processor 52 in 4 antenna codebooks after the compression stored from memory 51, determines RI under the triggering of antenna 53 And used pre-coding matrix;According to the combined coding of the setting stored in memory 51 rule, determine the RI with being used for The corresponding combined coding values of the first PMI of the first code book index of the pre-coding matrix are indicated, and received according to antenna 53 The feedback model indicated in configured information, marker antenna 53 sends out the combined coding value itself determined at the feedback moment of setting Base station is given, at the feedback moment of another setting, by the 2nd PMI of the second code book index for indicating the pre-coding matrix And CQI is sent to base station.

Wherein, 4 antenna codebooks refer to the configuration of 4 pilot frequency ports it is lower be used to carrying out pre-coding matrix instruction feedback of the information and Code book comprising the first code book index and the second code book index, the span of the first code book index is 0~N-1, and wherein N is big In 1 integer;4 antenna codebooks after compression refer to corresponding first pre-coding matrix of the first code book index in 4 antenna codebooks The code book that set is obtained after being compressed, the first pre-coding matrix set after the compression includes the first precoding square before compression Part pre-coding matrix in battle array set.

It should be noted that the concrete structure of the first pre-coding matrix set after compression, and the combined coding set Rule is referring to the description of method part, and here is omitted.

Shown in Figure 6, the base station at least includes:Memory 61, processor 62 and antenna 63, wherein:

At least be stored with 4 antenna codebooks after compressing in memory 61, and the combined coding of setting is regular;

Antenna 63 sends configured information, it is anti-that the configured information is used for instruction terminal under the triggering of processor 62 to terminal Present feedback model used in channel condition information and this feedback;And under the triggering of processor 62, according to the feedback mould Formula, the RI and the first PMI combined coding value sent at the feedback moment of setting, receiving terminal, in the feedback of another setting What reception terminal was sent is used to indicate second of the second code book index of pre-coding matrix in 4 antenna codebooks after compression PMI and CQI, and trigger processor 62 and work;

Processor 62 is under the triggering of antenna 63, the combined coding rule of the setting stored from memory 61, it is determined that connecing The corresponding RI of combined coding value received and the first code book index, further, 4 days after the compression stored from memory 61 In line code sheet, it is determined that the first code book index and the corresponding pre-coding matrix of the second code book index that receive.

Wherein, 4 antenna codebooks refer to the configuration of 4 pilot frequency ports it is lower be used to carrying out pre-coding matrix instruction feedback of the information and Code book comprising the first code book index and the second code book index, the span of the first code book index is 0~N-1, and wherein N is big In 1 integer;4 antenna codebooks after compression refer to corresponding first pre-coding matrix of the first code book index in 4 antenna codebooks The code book that set is obtained after being compressed, the first pre-coding matrix set after the compression includes the first precoding square before compression Part pre-coding matrix in battle array set.

It should be noted that the concrete structure of the first pre-coding matrix set after compression, and the combined coding set Rule is referring to the description of method part, and here is omitted.

It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or computer program Product.Therefore, the present invention can be using the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware Apply the form of example.Moreover, the present invention can be used in one or more computers for wherein including computer usable program code The computer program production that usable storage medium is implemented on (including but is not limited to magnetic disk storage, CD-ROM, optical memory etc.) The form of product.

The present invention is the flow with reference to method according to embodiments of the present invention, equipment (system) and computer program product Figure and/or block diagram are described.It should be understood that can be by every first-class in computer program instructions implementation process figure and/or block diagram Journey and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided The processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce A raw machine so that produced by the instruction of computer or the computing device of other programmable data processing devices for real The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.

These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which is produced, to be included referring to Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or The function of being specified in multiple square frames.

These computer program instructions can be also loaded into computer or other programmable data processing devices so that in meter Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, thus in computer or The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one The step of function of being specified in individual square frame or multiple square frames.

, but those skilled in the art once know basic creation although preferred embodiments of the present invention have been described Property concept, then can make other change and modification to these embodiments.So, appended claims are intended to be construed to include excellent Select embodiment and fall into having altered and changing for the scope of the invention.

Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to comprising including these changes and modification.

Claims (20)

1. a kind of sending method of the channel condition information based on code book, it is characterised in that this method includes:
Terminal from 4 antenna codebooks after compression, determines order instruction RI and institute after the configured information of base station transmission is received The pre-coding matrix used;
The terminal determines the RI and first yard that is used to indicate the pre-coding matrix according to the combined coding rule of setting The corresponding combined coding values of the first pre-coding matrix instruction PMI of this index;
The terminal, at the feedback moment of setting, the joint of determination is compiled according to the feedback model indicated in the configured information Code value is sent to the base station, at the feedback moment of another setting, by the second code book for indicating the pre-coding matrix The 2nd PMI and channel quality indicator (CQI) of index are sent to the base station;
Wherein, 4 antenna codebooks refer to the configuration of 4 pilot frequency ports it is lower be used to carrying out pre-coding matrix instruction feedback and comprising first The code book of code book index and the second code book index, the span of the first code book index is 0~N-1, and wherein N is whole more than 1 Number;4 antenna codebooks after the compression refer to corresponding first pre-coding matrix of the first code book index in 4 antenna codebook The code book that set is obtained after being compressed, the first pre-coding matrix set after the compression includes the first precoding before compression Part pre-coding matrix in set of matrices.
2. the method as described in claim 1, it is characterised in that the first pre-coding matrix collection after the compression is combined into:
Mode one, the pre-coding matrix in the first pre-coding matrix set before the compression is divided intoGroup, wherein every group of bag Two pre-coding matrixes contained have identical discrete Fourier transform DFT vectors;Appoint from every group of pre-coding matrix included Meaning chooses one, is used as the pre-coding matrix in the first pre-coding matrix set after compression;
Or,
Mode two, the pre-coding matrix in the first pre-coding matrix set before the compression is divided intoGroup, wherein, every group of bag The first row DFT vectors of two pre-coding matrixes contained are adjacent DFT vectors;It is any from every group of pre-coding matrix to choose one It is individual, it is used as the pre-coding matrix in the first pre-coding matrix set after compression;Wherein, the adjacent DFT vectors refer to, vm= [1 ej2πm/32]TMiddle m takes two DFT vectors that adjacent two values are obtained.
3. method as claimed in claim 2, it is characterised in that the first pre-coding matrix set after the compression is using following Structure:
Mode three, part pre-coding matrix in the first pre-coding matrix set after the compression is arbitrarily chosen, by the pre- of selection Encoder matrix is used as the first pre-coding matrix set after final compression.
4. the method as described in any one of claims 1 to 3, it is characterised in that 4 antenna codebooks after the compression are using following Structure:
Order is combined into the first pre-coding matrix after compression for the corresponding first pre-coding matrix collection of the first code book index in 1 code book Set;And/or,
Order is combined into the first pre-coding matrix after compression for the corresponding first pre-coding matrix collection of the first code book index in 2 code book Set.
5. method as claimed in claim 4, it is characterised in that
If order is combined into the first precoding square after compression for the corresponding first pre-coding matrix collection of the first code book index in 1 code book Battle array set, then in combined coding rule the corresponding combined coding values of RI=1 and the number of the first code book index with it is described The number for the pre-coding matrix that the first pre-coding matrix set after compression is included is identical, and each combined coding value correspondence one The first different code book indexes;
If order is combined into the first precoding square after compression for the corresponding first pre-coding matrix collection of the first code book index in 2 code book Battle array set, then in combined coding rule the corresponding combined coding values of RI=2 and the number of the first code book index with it is described The number for the pre-coding matrix that the first pre-coding matrix set after compression is included is identical, and each combined coding value correspondence one The first different code book indexes.
6. a kind of method of reseptance of the channel condition information based on code book, it is characterised in that this method includes:
Base station sends configured information to terminal, and the configured information is used to indicate the terminal feeding back channel state information and sheet Feedback model used in secondary feedback;
The base station, at the feedback moment of setting, receives the RI and the first PMI of the terminal transmission according to the feedback model Combined coding value, and it is used for 4 antenna codes after instruction is compressed what terminal described in another feedback set reception was sent 2nd PMI and CQI of the second code book index of pre-coding matrix in this;
The base station is according to the combined coding of setting rule, it is determined that the corresponding RI of the combined coding value received and described prelisting First code book index of code matrix;
Wherein, 4 antenna codebooks refer to the configuration of 4 pilot frequency ports it is lower be used to carrying out pre-coding matrix instruction feedback of the information and comprising The code book of first code book index and the second code book index, the span of the first code book index is 0~N-1, and wherein N is more than 1 Integer;4 antenna codebooks after the compression refer to corresponding first precoding of the first code book index in 4 antenna codebook The code book that set of matrices is obtained after being compressed, the first pre-coding matrix set after the compression is pre- comprising first before compression Part pre-coding matrix in encoder matrix set.
7. method as claimed in claim 6, it is characterised in that the first pre-coding matrix set after the compression is using following Structure:
Mode one, the pre-coding matrix in the first pre-coding matrix set before the compression is divided intoGroup, wherein every group of bag Two pre-coding matrixes contained have identical discrete Fourier transform DFT vectors;Appoint from every group of pre-coding matrix included Meaning chooses one, is used as the pre-coding matrix in the first pre-coding matrix set after compression;
Or,
Mode two, the pre-coding matrix in the first pre-coding matrix set before the compression is divided intoGroup, wherein, every group of bag The first row DFT vectors of two pre-coding matrixes contained are adjacent DFT vectors;It is any from every group of pre-coding matrix to choose one It is individual, it is used as the pre-coding matrix in the first pre-coding matrix set after compression;Wherein, the adjacent DFT vectors refer to, vm= [1 ej2πm/32]TMiddle m takes two DFT vectors that adjacent two values are obtained.
8. method as claimed in claim 7, it is characterised in that the first pre-coding matrix set after the compression is using following Structure:
Mode three, part pre-coding matrix in the first pre-coding matrix set after the compression is arbitrarily chosen, by the pre- of selection Encoder matrix is used as the first pre-coding matrix set after final compression.
9. the method as described in any one of claim 6~8, it is characterised in that 4 antenna codebooks after the compression are using following Structure:
Order is combined into the first pre-coding matrix after compression for the corresponding first pre-coding matrix collection of the first code book index in 1 code book Set;And/or,
Order is combined into the first pre-coding matrix after compression for the corresponding first pre-coding matrix collection of the first code book index in 2 code book Set.
10. method as claimed in claim 9, it is characterised in that
If order is combined into the first precoding square after compression for the corresponding first pre-coding matrix collection of the first code book index in 1 code book Battle array set, then in combined coding rule the corresponding combined coding values of RI=1 and the number of the first code book index with it is described The number for the pre-coding matrix that the first pre-coding matrix set after compression is included is identical, and each combined coding value correspondence one The first different code book indexes;
If order is combined into the first precoding square after compression for the corresponding first pre-coding matrix collection of the first code book index in 2 code book Battle array set, then in combined coding rule the corresponding combined coding values of RI=2 and the number of the first code book index with it is described The number for the pre-coding matrix that the first pre-coding matrix set after compression is included is identical, and each combined coding value correspondence one The first different code book indexes.
11. a kind of terminal, it is characterised in that the terminal includes:
First determining module, for after the configured information of base station transmission is received, from 4 antenna codebooks after compression, it is determined that RI and used pre-coding matrix;
Second determining module, for the combined coding rule according to setting, determines that the RI indicates the precoding square with being used for The corresponding combined coding values of the first pre-coding matrix instruction PMI of first code book index of battle array;
Feedback module, for according to the feedback model indicated in the configured information, at the feedback moment of setting, by the connection of determination Compile in collaboration with code value and be sent to the base station, at the feedback moment of another setting, by for indicating the second of the pre-coding matrix The 2nd PMI and channel quality indicator (CQI) of code book index are sent to the base station;
Wherein, 4 antenna codebooks refer to the configuration of 4 pilot frequency ports it is lower be used to carrying out pre-coding matrix instruction feedback and comprising first The code book of code book index and the second code book index, the span of the first code book index is 0~N-1, and wherein N is whole more than 1 Number;4 antenna codebooks after the compression refer to corresponding first pre-coding matrix of the first code book index in 4 antenna codebook The code book that set is obtained after being compressed, the first pre-coding matrix set after the compression includes the first precoding before compression Part pre-coding matrix in set of matrices.
12. terminal as claimed in claim 11, it is characterised in that the first pre-coding matrix set after the compression use with Lower structure:
Mode one, the pre-coding matrix in the first pre-coding matrix set before the compression is divided intoGroup, wherein every group of bag Two pre-coding matrixes contained have identical discrete Fourier transform DFT vectors;Appoint from every group of pre-coding matrix included Meaning chooses one, is used as the pre-coding matrix in the first pre-coding matrix set after compression;
Or,
Mode two, the pre-coding matrix in the first pre-coding matrix set before the compression is divided intoGroup, wherein, every group of bag The first row DFT vectors of two pre-coding matrixes contained are adjacent DFT vectors;It is any from every group of pre-coding matrix to choose one It is individual, it is used as the pre-coding matrix in the first pre-coding matrix set after compression;Wherein, the adjacent DFT vectors refer to, vm= [1 ej2πm/32]TMiddle m takes two DFT vectors that adjacent two values are obtained.
13. terminal as claimed in claim 12, it is characterised in that the first pre-coding matrix set after the compression use with Lower structure:
Mode three, part pre-coding matrix in the first pre-coding matrix set after the compression is arbitrarily chosen, by the pre- of selection Encoder matrix is used as the first pre-coding matrix set after final compression.
14. the terminal as described in any one of claim 11~13, it is characterised in that 4 antenna codebooks after the compression are used Following structure:
Order is combined into the first pre-coding matrix after compression for the corresponding first pre-coding matrix collection of the first code book index in 1 code book Set;And/or,
Order is combined into the first pre-coding matrix after compression for the corresponding first pre-coding matrix collection of the first code book index in 2 code book Set.
15. terminal as claimed in claim 14, it is characterised in that
If order is combined into the first precoding square after compression for the corresponding first pre-coding matrix collection of the first code book index in 1 code book Battle array set, then in combined coding rule the corresponding combined coding values of RI=1 and the number of the first code book index with it is described The number for the pre-coding matrix that the first pre-coding matrix set after compression is included is identical, and each combined coding value correspondence one The first different code book indexes;
If order is combined into the first precoding square after compression for the corresponding first pre-coding matrix collection of the first code book index in 2 code book Battle array set, then in combined coding rule the corresponding combined coding values of RI=2 and the number of the first code book index with it is described The number for the pre-coding matrix that the first pre-coding matrix set after compression is included is identical, and each combined coding value correspondence one The first different code book indexes.
16. a kind of base station, it is characterised in that the base station includes:
Sending module, for sending configured information to terminal, the configured information is used to indicate the terminal fed-back channel status Feedback model used in information and this feedback;
Receiving module, for according to the feedback model, at the feedback moment of setting, receives the RI and first that the terminal is sent PMI combined coding value, and be used for 4 days after instruction is compressed what terminal described in another feedback set reception was sent 2nd PMI and CQI of the second code book index of pre-coding matrix in line code sheet;
Processing module, for the combined coding rule according to setting, it is determined that the corresponding RI of the combined coding value received and institute State the first code book index of pre-coding matrix;
Wherein, 4 antenna codebooks refer to the configuration of 4 pilot frequency ports it is lower be used to carrying out pre-coding matrix instruction feedback of the information and comprising The code book of first code book index and the second code book index, the span of the first code book index is 0~N-1, and wherein N is more than 1 Integer;4 antenna codebooks after the compression refer to corresponding first precoding of the first code book index in 4 antenna codebook The code book that set of matrices is obtained after being compressed, the first pre-coding matrix set after the compression is pre- comprising first before compression Part pre-coding matrix in encoder matrix set.
17. base station as claimed in claim 16, it is characterised in that the first pre-coding matrix set after the compression use with Lower structure:
Mode one, the pre-coding matrix in the first pre-coding matrix set before the compression is divided intoGroup, wherein every group of bag Two pre-coding matrixes contained have identical discrete Fourier transform DFT vectors;Appoint from every group of pre-coding matrix included Meaning chooses one, is used as the pre-coding matrix in the first pre-coding matrix set after compression;
Or,
Mode two, the pre-coding matrix in the first pre-coding matrix set before the compression is divided intoGroup, wherein, every group of bag The first row DFT vectors of two pre-coding matrixes contained are adjacent DFT vectors;It is any from every group of pre-coding matrix to choose one It is individual, it is used as the pre-coding matrix in the first pre-coding matrix set after compression;Wherein, the adjacent DFT vectors refer to, vm= [1 ej2πm/32]TMiddle m takes two DFT vectors that adjacent two values are obtained.
18. base station as claimed in claim 17, it is characterised in that the first pre-coding matrix set after the compression use with Lower structure:
Mode three, part pre-coding matrix in the first pre-coding matrix set after the compression is arbitrarily chosen, by the pre- of selection Encoder matrix is used as the first pre-coding matrix set after final compression.
19. the base station as described in any one of claim 16~18, it is characterised in that 4 antenna codebooks after the compression are used Following structure:
Order is combined into the first pre-coding matrix after compression for the corresponding first pre-coding matrix collection of the first code book index in 1 code book Set;And/or,
Order is combined into the first pre-coding matrix after compression for the corresponding first pre-coding matrix collection of the first code book index in 2 code book Set.
20. base station as claimed in claim 19, it is characterised in that
If order is combined into the first precoding square after compression for the corresponding first pre-coding matrix collection of the first code book index in 1 code book Battle array set, then in combined coding rule the corresponding combined coding values of RI=1 and the number of the first code book index with it is described The number for the pre-coding matrix that the first pre-coding matrix set after compression is included is identical, and each combined coding value correspondence one The first different code book indexes;
If order is combined into the first precoding square after compression for the corresponding first pre-coding matrix collection of the first code book index in 2 code book Battle array set, then in combined coding rule the corresponding combined coding values of RI=2 and the number of the first code book index with it is described The number for the pre-coding matrix that the first pre-coding matrix set after compression is included is identical, and each combined coding value correspondence one The first different code book indexes.
CN201310224583.1A 2013-06-06 2013-06-06 A kind of transmission method and device of the channel condition information based on code book CN104243003B (en)

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106612132A (en) * 2015-10-16 2017-05-03 电信科学技术研究院 Method and device for transmitting channel state information
CN107181514A (en) * 2016-03-11 2017-09-19 电信科学技术研究院 A kind of CSI feedback method, method for precoding and device
CN107181509A (en) * 2016-03-11 2017-09-19 电信科学技术研究院 A kind of data transmission method and device
CN107872294A (en) * 2016-09-28 2018-04-03 北京信威通信技术股份有限公司 A kind of periodic report CSI method
CN107888323B (en) 2016-09-29 2020-01-17 电信科学技术研究院 Method and device for transmitting channel state information
WO2018227542A1 (en) * 2017-06-16 2018-12-20 Qualcomm Incorporated Channel state information feedback for semi-open-loop and open loop schemes
WO2020118501A1 (en) * 2018-12-11 2020-06-18 Qualcomm Incorporated Basis report for compressed csi feedback with non-contiguous subband configuration

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101958773A (en) * 2010-09-30 2011-01-26 中兴通讯股份有限公司 Method and terminal for feeding back channel information
CN101969363A (en) * 2010-09-30 2011-02-09 中兴通讯股份有限公司 Channel state information feedback method and terminal
CN102122983A (en) * 2011-04-18 2011-07-13 电信科学技术研究院 Method and equipment for generating codebook and sending and feeding back information
CN102291218A (en) * 2010-06-21 2011-12-21 夏普株式会社 Channel state information feedback resource allocation method and channel state information feedback method
CN102368698A (en) * 2011-11-10 2012-03-07 电信科学技术研究院 Precoding matrix indicator (PMI) information transmission method and apparatus thereof
WO2012112281A2 (en) * 2011-02-18 2012-08-23 Qualcomm Incorporated Feedback reporting based on channel state information reference signal (csi-rs) groups
CN103119859A (en) * 2010-09-26 2013-05-22 Lg电子株式会社 Method and apparatus for efficient feedback in a wireless communication system that supports multiple antennas

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7701844B2 (en) * 2005-02-09 2010-04-20 Interdigital Technology Corporation Method and apparatus for recognizing radio link failures associated with HSUPA and HSDPA channels
US8379578B2 (en) * 2006-12-01 2013-02-19 Qualcomm Incorporated Control signal transmission for wireless communication systems
US8594219B2 (en) * 2007-04-25 2013-11-26 Qualcomm Incorporated Transposed structure for cyclic delay diversity (CDD) based precoding
JP5276047B2 (en) * 2010-04-30 2013-08-28 株式会社エヌ・ティ・ティ・ドコモ Mobile terminal device
CN101826951B (en) * 2010-05-05 2016-03-30 中兴通讯股份有限公司 The method of feeding back channel state information and device
CN101969367B (en) * 2010-09-30 2016-03-30 中兴通讯股份有限公司 Channel information feedback method and terminal
EP2625884A4 (en) * 2010-10-08 2017-11-29 BlackBerry Limited Method and apparatus for lte channel state information estimation

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102291218A (en) * 2010-06-21 2011-12-21 夏普株式会社 Channel state information feedback resource allocation method and channel state information feedback method
CN103119859A (en) * 2010-09-26 2013-05-22 Lg电子株式会社 Method and apparatus for efficient feedback in a wireless communication system that supports multiple antennas
CN101969363A (en) * 2010-09-30 2011-02-09 中兴通讯股份有限公司 Channel state information feedback method and terminal
CN101958773A (en) * 2010-09-30 2011-01-26 中兴通讯股份有限公司 Method and terminal for feeding back channel information
WO2012112281A2 (en) * 2011-02-18 2012-08-23 Qualcomm Incorporated Feedback reporting based on channel state information reference signal (csi-rs) groups
CN102122983A (en) * 2011-04-18 2011-07-13 电信科学技术研究院 Method and equipment for generating codebook and sending and feeding back information
CN102368698A (en) * 2011-11-10 2012-03-07 电信科学技术研究院 Precoding matrix indicator (PMI) information transmission method and apparatus thereof

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