CN101917260A - Feedback method and device of channel state information - Google Patents

Feedback method and device of channel state information Download PDF

Info

Publication number
CN101917260A
CN101917260A CN2010102627550A CN201010262755A CN101917260A CN 101917260 A CN101917260 A CN 101917260A CN 2010102627550 A CN2010102627550 A CN 2010102627550A CN 201010262755 A CN201010262755 A CN 201010262755A CN 101917260 A CN101917260 A CN 101917260A
Authority
CN
China
Prior art keywords
information
carrier component
dicode
cqi
feedback
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN2010102627550A
Other languages
Chinese (zh)
Other versions
CN101917260B (en
Inventor
李儒岳
徐前子
徐俊
陈艺戬
张峻峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZTE Corp
Original Assignee
ZTE Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZTE Corp filed Critical ZTE Corp
Priority to CN201010262755.0A priority Critical patent/CN101917260B/en
Publication of CN101917260A publication Critical patent/CN101917260A/en
Priority to PCT/CN2011/076734 priority patent/WO2012022202A1/en
Application granted granted Critical
Publication of CN101917260B publication Critical patent/CN101917260B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity 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
    • H04B7/0615—Diversity 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
    • H04B7/0619—Diversity 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
    • H04B7/0621—Feedback content
    • H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity 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
    • H04B7/0615—Diversity 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
    • H04B7/0619—Diversity 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
    • H04B7/0621—Feedback content
    • H04B7/063—Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses feedback method and device of channel state information, which support multiple carrier components and/or multiple PMI (Purchase management Index) feedbacks. The method comprises the step of feeding-back rand indicator (RI) information as well as broad-band channel information and/or each piece of carrier component channel information to a base station by user equipment (UE); wherein the RI information, the broad-band channel information and the carrier component channel information are respectively carried in different report types. Compared with the prior art, the technical scheme of the invention solves the problem that the multiple carrier components and/or multiple PMI feedbacks can not be supported by relevant technologies.

Description

Feedback method of channel status information and device
Technical field
The present invention relates to the communications field, relate in particular to a kind of feedback method of channel status information and device.
Background technology
In wireless communication system, transmitting terminal and receiving terminal take the mode of spatial reuse to use many antennas to obtain higher speed.Wherein a kind of technology that strengthens spatial reuse is that receiving terminal feeds back to transmitting terminal channel information (being also referred to as channel condition information), and transmitting terminal uses the emission precoding technique according to the channel information that obtains, and can improve transmission performance.
At 3GPP Long Term Evolution (Long Term Evolution, abbreviate LTE as) in the works, the feedback of channel information mainly is to utilize the feedback method of better simply single code book, and the performance of the emission precoding technique of multiple-input and multiple-output (Multi-input Multi-output abbreviates MIMO as) depends on the wherein accuracy of code book feedback.
The basic principle that channel information based on code book is quantized to feed back is carried out brief description below.
Suppose that the Limited Feedback channel capacity is Bbps/Hz, the number of so available code word is N=2 BIndividual.The space of feature vectors of channel matrix is through quantizing to constitute the code book space Transmitting terminal and receiving terminal preserve or produce in real time this code book jointly
Figure BSA00000243957800012
(transmitting terminal is identical with receiving terminal).To needing the channel H of feeding back channel state information (CSI), the certain criterion of receiving terminal basis is from the code book space
Figure BSA00000243957800013
Code word of mating most of middle selection with actual channel H
Figure BSA00000243957800014
And with this code word
Figure BSA00000243957800015
Sequence number i (code word sequence number) feed back to transmitting terminal.Here, code word sequence is known as and is the precoding matrix indicators in the code book (Precoding MatrixIndicator abbreviates PMI as).Transmitting terminal finds corresponding pre-encoding codeword according to this sequence number i
Figure BSA00000243957800016
Thereby also obtain corresponding channel information,
Figure BSA00000243957800017
The characteristic vector information of having represented channel.
In general code book space
Figure BSA00000243957800018
Can be divided into the corresponding code book of a plurality of orders (Rank) further, each Rank can corresponding a plurality of code words quantize the pre-coding matrix that this Rank lower channel characteristic vector constitutes down.Because the Rank and the non-zero characteristics vector number of channel equate that therefore, code word all can have the N row when in general Rank was N.So, the code book space
Figure BSA00000243957800021
Can be divided into a plurality of sub-codebooks by the difference of Rank, as shown in table 1.
Table 1
Figure BSA00000243957800022
Wherein, the code word that o'clock need store in Rank＞1 all is a matrix form, and wherein the code book in the LTE agreement is exactly the feedback method of this codebook quantification that adopts, in fact among the LTE precoding codebook to quantize the code book implication with channel information be the same.Wherein, also can to regard a dimension as be 1 matrix to vector.
In the standard of LTE, the minimum feedback unit of channel information is subband (Subband), and a subband is made up of several Resource Block (Resource Block abbreviates RB as), each RB is made up of a plurality of Resource Units (Resource Element abbreviates RE as); RE is the least unit of running time-frequency resource among the LTE.The object of correspondence can be a subband during UE feedback channel information, or a plurality of subband (Multi-Subband), and broadband (Wideband).
In the LTE system, there are a lot of feedback models, different feedback models is arranged under the different transmission modes.During spatial reuse, the feedback content of uplink channel information mainly contains three kinds:
PMI information, the characteristic feature Vector Message is recommended the base station, is used for the downlink precoding technology;
Order designator (Rank Indicator abbreviates RI as), the order of sign channel is recommended the number of plies of base station as descending support, wherein, the maximum RI=4 that supports during LTE;
CQI (Channel Quality Indicator abbreviates CQI as) characterizes quality of channel information, characterizes channel quality with the modulation coding mode of recommending, and the modulation coding mode of high-order represents that performance is good more more, supports 16 kinds of selections; As shown in table 2:
Table 2
Figure BSA00000243957800031
Wherein, the feedback of channel information is divided into following two kinds:
Periodic feedback mainly is carried on the feedback on the ascending control channel (PUCCH);
Aperiodic, feedback was carried on the feedback on the Uplink Shared Channel (PUSCH).
Below the periodic feedback on the PUCCH is described.
In the LTE system, PUCCH upper signal channel feedback information one has 4 kinds of feedback kind (Type):
Type 1, the CQI of the subband that feedback UE selects;
Type 2, the CQI and the PMI information in feedback broadband;
Type 3, feedback RI information;
Type 4, only feed back the CQI in broadband.
Fig. 1 is the schematic diagram according to the feedback form of two kinds of feedback models of correspondence of the LTE system of correlation technique.
Wherein, report (Report) type 3RI information is absolute coding, and for example, totally 4 state representation RI of 4 transmitting antennas following use 2 bits (bit) are 1,2,3,4 situation.
The PMI information that comprises 4bit among the Report type 2, certain code word in the indication LTE code book also comprises CQI information in addition.Be 1 CQI during RI=1, RI＞1 o'clock is 2 CQI.Be 4bit during 1 CQI, when feeding back 2 CQI, the 2nd CQI uses differential technique, based on the 1st CQI difference, is 3bit.Be 11bit to the maximum, this also be on PUCCH when feedback CSI information maximum supported expense.
The definition of 3bit differential CQI is as shown in table 3:
Table 3
Space differential CQI value Side-play amount
0 0
1 1
2 2
3 ≥3
4 ≤-4
5 -3
6 -2
7 -1
The positional information that comprises subband CQI information and subband among the Report type 1, the channel quality and the position of indication subband.Each subband comprises the CQI information of 1 4bit and the positional information of L bit current sub, i.e. 4+L bit during RI=1; RI＞1 o'clock each subband also comprises the differential CQI information of a 3bit except the positional information of the CQI information that comprises 1 4bit and L bit current sub, always total 7+Lbit.Though L is relevant with the size of bandwidth, the total load of subband CQI and subband positional information can not surpass the expense that PUCCH goes up supported maximum 11bit.
Senior Long Term Evolution (Long Term Evolution Advanced the abbreviates LTE-A as) system bandwidth (reaching as high as 100MHz) that system's support is bigger, and the existing standard of backward compatibility LTE.For covering and the throughput that improves cell edge, LTE-A is on the basis of prior LTE system, descending 8 antennas of maximum of having supported, and RI=8, and some feedback technique for enhancing have been proposed the time in feedback, mainly be the feedback accuracy that strengthens code book, the availability of frequency spectrum, alleviation frequency spectrum resource that this technology can improve international mobile communication (International Mobile Telecommunications-Advance the abbreviates IMT-Advance as) system of evolution are in short supply.
Below the technology in the LTE-A system is described.
1) precoding/feedback arrangement of a subband is made up of two matrixes.
2) each matrix in two matrixes all is under the jurisdiction of an independent code book.Code book is known by base station and UE simultaneously in advance.Code book can change on different time and different subband to some extent.
3) the matrix notation broadband or the attribute of channel when long.Another matrix notation is determined on the frequency band or the attribute of channel in short-term.
4) employed matrix code book is represented with the form of limited denumerable matrix stack, and for UE and base station, each matrix all is as can be known.
From the above, in the LTE-A system, the feedback aspect of channel information has proposed a kind of based on dicode structure originally, is explained below.
For the subband or a plurality of associating subband that need feedback channel information, UE is respectively PMI1 and PMI2 at least two PMI information of terminal feedback, the code word W 1 among the corresponding code book C1 of PMI1 wherein, the code word W 2 among the corresponding another one code book of the PMI2 C2.The base station end has the information of identical C1 and C2, receive behind PMI1 and the PMI2 from the code book C1 of correspondence and C2 and find corresponding code word W 1 and W2, and functional rule F according to a preconcerted arrangement (W1 W2) obtains channel information.
Therefore, in the LTE-A system, support under the transmission mode of single subscriber terminal (SU)/multiple users (MU) that needing needs channel transmitted information that RI, PMI1 and PMI2 and CQI are arranged in broadband/many sub-band channel information of feedback.
Because the feedback quantity that PUCCH goes up channel condition information is conditional, only can support single PMI feedback (not consider not have the situation of PMI feedback here, for example pattern 1-0 and 2-0), therefore for having adopted the situation that strengthens code book need solve feedback how to support two PMI.
In the LTE system, its supported maximum bandwidth is 20MHz, and in the LTE-A system, by a plurality of carrier waves of polymerization to the LTE backward compatibility, then can obtain the bandwidth that maximum reaches 100MHz, thereby satisfy bigger bandwidth demand, meanwhile also keep backwards compatibility the LTE system.Concrete, in the LTE-A system, when the receiving ability of UE surpasses the 20MHz bandwidth, then can receive a plurality of carrier component information; And, then can receive only one of them carrier component information for the R8 terminal UE that can only reach 20MHz.
Distinguish according to different scenes, carrier aggregation can be divided into: discontinuous carrier polymerization and the outer discontinuous carrier polymerization of band in continuous carrier polymerization in the band, the band.
Because carrier aggregation technology has comprised a plurality of carrier components, thereby feeding back channel state information has been proposed new requirement.
Summary of the invention
Technical problem to be solved by this invention is that a kind of feedback method of channel status information and device need be provided, and supports a plurality of carrier components and/or a plurality of PMI feedback.
In order to solve the problems of the technologies described above, the present invention at first provides a kind of feedback method of channel status information, comprising:
Subscriber equipment (UE) is to base station feedback order designator (RI) information, and broad-band channel information and/or each carrier component channel information;
Wherein, RI information, broad-band channel information, carrier component channel information are carried on respectively in the different Report Type (Report Type).
Preferably, the content in described broad-band channel information and/or each the carrier component channel information is determined according to the RI information of previous moment by Report Type.
Preferably,
For this feedback arrangement of solid size:
Described broad-band channel information comprises broadband CQI information and broadband P MI information; Described carrier component channel information comprises CQI information and the PMI information on each carrier component;
For this feedback arrangement of dicode, and UE is when base station feedback RI information, broad-band channel information and each carrier component channel information:
Described broad-band channel information comprises the PMI1 information in broadband CQI information and the dicode basis; Described carrier component channel information comprises CQI information on each carrier component and the dicode PMI2 information in this;
For this feedback arrangement of dicode, and UE is when base station feedback RI information and broad-band channel information or each carrier component channel information:
Described broad-band channel information comprises the PMI information in broadband CQI information and the dicode basis; Described carrier component channel information comprises CQI information on each carrier component and the dicode PMI information in this.
Preferably,
For this feedback arrangement of solid size, the RI of described previous moment is 1 o'clock:
Carry in the Report Type of described broad-band channel information and comprise broadband CQI information and broadband P MI information;
Carry the CQI information that comprises in the Report Type of described carrier component channel information on the current carrier component and the PMI information on the current carrier component;
For this feedback arrangement of solid size, the RI of described previous moment was greater than 1 o'clock:
Carry in the Report Type of described broad-band channel information and comprise the broadband CQI information that is used for first streams of code words, be used for the broadband differential CQI information and the broadband P MI information based on the broadband CQI information of described first streams of code words of second streams of code words;
Carry the carrier component CQI information that is used for first streams of code words that comprises in the Report Type of described carrier component channel information on the current carrier component, be used for second streams of code words based on the difference carrier component CQI information of the carrier component CQI information of first streams of code words and the PMI information on the current carrier component.
Preferably, for this feedback arrangement of solid size, described broadband P MI information and each carrier component PMI information are based on that same code book selects.
Preferably,
For this feedback arrangement of dicode, the RI of described previous moment is 1 o'clock:
Carry and comprise broadband CQI information and the dicode PMI1 information in this in the Report Type of described broad-band channel information; Carry the CQI information that comprises in the Report Type of described carrier component channel information on the current carrier component and the dicode PMI2 information in this;
Perhaps, carry and comprise broadband CQI information and the dicode PMI information in this in the Report Type of described broad-band channel information; Carry the CQI information that comprises in the Report Type of described carrier component channel information on the current carrier component and the dicode PMI information in this;
For this feedback arrangement of dicode, the RI of described previous moment was greater than 1 o'clock:
Carry in the Report Type of described broad-band channel information and comprise the broadband CQI information that is used for first streams of code words, be used for second streams of code words based on the broadband differential CQI information of the broadband CQI information of described first streams of code words and the dicode PMI1 information in this; Carry the carrier component CQI information that is used for first streams of code words that comprises in the Report Type of described carrier component channel information on the current carrier component, be used for second streams of code words based on the difference carrier component CQI information of the carrier component CQI information of first streams of code words and the dicode PMI2 information in this;
Perhaps, carry in the Report Type of described broad-band channel information and comprise the broadband CQI information that is used for first streams of code words, be used for second streams of code words based on the broadband differential CQI information of the broadband CQI information of described first streams of code words and the dicode PMI information in this; Carry the carrier component CQI information that is used for first streams of code words that comprises in the Report Type of described carrier component channel information on the current carrier component, be used for second streams of code words based on the difference carrier component CQI information of the carrier component CQI information of first streams of code words and the dicode PMI information in this.
Preferably, for this feedback arrangement of dicode, the described dicode PMI1 information in this is based on that the code book C1 of dicode in this select, and the PMI2 information of described dicode in this is based on that the code book C2 of dicode in this select.
Preferably, for this feedback arrangement of dicode,
The described dicode PMI information in this is formed according to PMI1 information and/or the PMI2 information of described dicode in this of described dicode in this;
Perhaps, the PMI information in the described dicode basis, the expression sampling merges the pre-coding matrix index of code book;
Wherein, this code book of described sampling combine code according to code book C1 in the dicode basis and/or code book C2 generation.
Preferably,
Described RI is 1 o'clock, and the PMI information of p bit is made of jointly the PMI1 information of p1 bit and the PMI2 information of p2 bit in the described dicode basis, wherein p1+p2=p;
When RI greater than 1 the time, wherein dicode in this PMI information of q bit form q1+q2=q wherein jointly by the PMI1 information of q1 bit and the PMI2 information of q2 bit;
Wherein, described p1, p2, q1 and q2 are the integer more than or equal to 0.
Preferably,
Described RI be 1 and p1 be 0 o'clock, UE feedback be RI report information, broadband CQI information and dicode PMI2 information in this;
Described RI be 1 and p2 be 0 o'clock, the UE feedack is RI report information, broadband CQI information and the dicode PMI1 in this;
Described RI greater than 1 and q1 be 0 o'clock, UE feedback be RI report information, broadband CQI information, differential broadband CQI and dicode PMI2 information in this;
Described RI greater than 1 and q2 be 0 o'clock, the UE feedack is RI report information, broadband CQI information, differential broadband CQI information and the dicode PMI1 in this.
Preferably,
When described sampling merged code book and is the code book C1 of described dicode in this, the PMI information of described dicode in this was the PMI1 information of described dicode in this;
When described sampling merged code book and is the code book C2 of described dicode in this, the PMI information of described dicode in this was the PMI2 information of described dicode in this.
In order to solve the problems of the technologies described above, the present invention also provides a kind of feedback device of channel condition information, comprise module and feedback module are set, wherein:
The described module that is provided with is used in broad-band channel information and/or carrier component channel information the designator (PMI) that carries pre-coding matrix being set;
Described feedback module is used for to base station feedback order designator (RI) information, and described broad-band channel information and/or each carrier component channel information;
Wherein, described RI information, broad-band channel information and carrier component channel information are carried on respectively in three different Report Types.
Preferably, content in described broad-band channel information and/or each the carrier component channel information is determined according to the RI information of previous moment by Report Type.
Compared with prior art, technical scheme of the present invention has proposed a kind of method and apparatus of feeding back channel state information, solved the problem that to support a plurality of carrier components and/or a plurality of PMI feedback in the correlation technique, and then can realize the feedback of a plurality of carrier components and/or a plurality of PMI, the feedback requirements of a plurality of PMI when a plurality of carrier components and this structure of dicode when satisfying carrier aggregation adapts to the developing direction of LTE-A system.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in specification, claims and accompanying drawing.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the schematic diagram of feedback form of two kinds of feedback models of correspondence of existing LTE system;
Fig. 2 (a) and Fig. 2 (b) are the schematic diagrames of the channel state information feedback method of the embodiment of the invention one;
Fig. 3 (a), Fig. 3 (b) and Fig. 3 (c) are the schematic diagrames of the channel state information feedback method of the embodiment of the invention two;
Fig. 4 is the schematic diagram according to the channel state information feedback method of the embodiment of the invention three;
Fig. 5 is the schematic diagram according to the channel state information feedback method of the embodiment of the invention four;
Fig. 6 is the structural representation according to the channel condition information feedback device of the embodiment of the invention five.
Embodiment
Describe embodiments of the present invention in detail below with reference to drawings and Examples, how the application technology means solve technical problem to the present invention whereby, and the implementation procedure of reaching technique effect can fully understand and implements according to this.
At first, if do not conflict, the mutually combining of each feature among the embodiment of the invention and the embodiment is all within protection scope of the present invention.In addition, can in computer system, carry out in the step shown in the flow chart of accompanying drawing such as a set of computer-executable instructions, and, though there is shown logical order in flow process, but in some cases, can carry out step shown or that describe with the order that is different from herein.
Embodiment one, a kind of feedback method of channel status information
The feedback method of channel status information that present embodiment provides is applied to support in the senior Long Term Evolution LTE-A system transmission mode of carrier aggregation, supports this channel condition information feedback system of dicode.
This method mainly comprises the steps:
Subscriber equipment (UE) is to base station feedback order designator (RI) information, and broad-band channel information and/or each carrier component channel information;
Wherein, RI information, broad-band channel information, carrier component channel information are carried on respectively in three different Report Types (Report Type).
Below in conjunction with Fig. 2 (a) and Fig. 2 (b), the Report Type of the carrying broad-band channel information in the present embodiment and the Report Type of bearing carrier wave component channel information are described in detail.
The content of carrying in broad-band channel information and/or each the carrier component channel information is determined according to the RI information of previous moment by Report Type.
During current one constantly RI=1,
Comprise following information in the Report Type of carrying broad-band channel information:
PMI1 information in broad-band channel quality indicator (CQI) information and the dicode basis;
Comprise following information in the Report Type of bearing carrier wave component channel information:
PMI2 information in CQI information on the current carrier component and the dicode basis.
Current one constantly RI is greater than 1 o'clock,
Comprise following information in the Report Type of carrying broad-band channel information:
Broad-band channel quality indicator (CQI) information that is used for first streams of code words, be used for second streams of code words based on differential channel quality designator (CQI) information of first streams of code words broadband CQI information and the dicode PMI1 information in this;
Comprise following information in the Report Type of bearing carrier wave component channel information:
Carrier component CQI (CQI) information that is used for first streams of code words on the current carrier component, be used for second streams of code words based on difference carrier component channel quality indicator (CQI) information of first streams of code words carrier component CQI information and the dicode PMI2 information in this.
Wherein, PMI1 information is based on that code book C1 selects, and each carrier component PMI2 information is based on that code book C2 selects.
By foregoing as seen, the PMI information in the dicode basis is carried in broad-band channel information and the carrier component channel information.
The channel status information reports of feedback can feed back according to the described form of Fig. 2 (a), comprising: RI report information, the broad-band channel report information that comprises broadband CQI information (WB-CQI) and PMI1 information and N carrier component channel information;
Wherein, N is the number of carrier component;
Wherein, i carrier component channel information comprise i on the carrier component CQI information (CCi-CQI) and PMI2 (CCi-PMI2) information on i carrier component; The value of i is to N from 1.Wherein, the WB-CQI among the figure can comprise the CQI information of first streams of code words, perhaps the differential CQI information of the CQI information of first streams of code words and second streams of code words; CCi-CQI can comprise the CQI information of first streams of code words, perhaps the differential CQI information of the CQI information of first streams of code words and second streams of code words.
Specifically, when RI was 1, the content of feedback was followed successively by: RI report information, broadband CQI information, PMI1 information, CQI information on first carrier component, the PMI2 information on first carrier component, the CQI information on second carrier component, PMI2 information on second carrier component, ..., the CQI information on N carrier component, the PMI2 information on N carrier component.When RI greater than 1 the time, the content of feedback is followed successively by: the RI report information, broadband CQI information, the broadband differential CQI information, PMI1 information, CQI information on first carrier component, differential CQI information on first carrier component, the PMI2 information on first carrier component, the CQI information on second carrier component, differential CQI information on second carrier component, PMI2 information on second carrier component ..., the CQI information on N carrier component, PMI2 information on the differential CQI information on N carrier component, N carrier component.
The channel status information reports of feedback can also feed back according to the described form of Fig. 2 (b), comprising: the RI report information, comprise the broad-band channel report information of broadband CQI information and PMI1 information;
Wherein, the WB-CQI among the figure can comprise the CQI information of first streams of code words, perhaps the differential CQI information of the CQI information of first streams of code words and second streams of code words.
Specifically, when RI was 1, the content of feedback was followed successively by: RI report information, broadband CQI information and PMI1 information; When RI greater than 1 the time, the content of feedback is followed successively by: RI report information, broadband CQI information, broadband differential CQI information and PMI1 information.
In the broad-band channel report information, the broadband CQI information that is used for first streams of code words can be 4 bits, the broadband differential CQI information based on the broadband CQI information of first streams of code words that is used for second streams of code words can be 3 bits, and the PMI1 information of dicode in this can be 4 bits;
Perhaps, when RI=1, the broadband CQI information that is used for first streams of code words can be 4 bits, and the PMI information in the dicode basis can be 6 bits; When RI greater than 1 the time, the broadband CQI information that is used for first streams of code words can be 4 bits, the broadband differential CQI information based on the broadband CQI information of first streams of code words that is used for second streams of code words can be 1 bit, and the PMI1 information of dicode in this can be 6 bits.
In the carrier component channel information reporting, the carrier component CQI information that is used for first streams of code words can be 4 bits, and the carrier component differential CQI information that is used for second streams of code words can be 3 bits, and the PMI2 information in the dicode basis can be 4 bits.
Pass through present embodiment, it is the requirement for restriction of 11 bits that technical scheme of the present invention can satisfy ascending control channel (PUCCH) heap(ed) capacity, also can satisfy simultaneously in the LTE-A system for the feedback requirements of multicarrier component channel state information, can adapt to this channel condition information of the dicode feedback arrangement in the LTE-A system.
Need to prove that technical scheme of the present invention is not limited to the bit number of above-mentioned setting when practical application.Technical scheme of the present invention might surpass PUCCH and go up supported ultimate load when practical application, need be to the PUCCH dilatation.Such as, can adopt following preferred implementation:
If the ultimate load (such as 11 bits) that the bit number of each carrier component channel information or broad-band channel information is supported greater than ascending control channel (PUCCH), then reduce the bit number of the differential CQI (carrier component differential CQI or broadband differential CQI) in each carrier component channel information or the broad-band channel information, the bit number that differential CQI reduces is used to feed back PMI information.By this preferred implementation can be compatible better the LTE system.
Need to prove that in the above embodiment of the present invention, the channel information of different carrier component need transmission separately in different carrier component feedback reports.
Embodiment two, a kind of feedback method of channel status information
The feedback method of channel status information that present embodiment provides is applied to support in the senior Long Term Evolution LTE-A system transmission mode of carrier aggregation, supports the channel condition information feedback system of this feedback arrangement of solid size.
This method comprises the steps:
Subscriber equipment (UE) is to base station feedback order designator (RI) information, and broad-band channel information and/or each carrier component channel information;
Wherein, RI information, broad-band channel information, carrier component channel information are carried on respectively in three different Report Types (Report Type).
Below in conjunction with Fig. 3 (a), Fig. 3 (b) and Fig. 3 (c), the Report Type of the carrying broad-band channel information in the present embodiment and the Report Type of bearing carrier wave component channel information are described in detail.
Content in the Report Type of broad-band channel information and/or each carrier component channel information is determined according to the RI information of previous moment by ReportType.
During current one constantly RI=1,
Comprise following information in the Report Type of carrying broad-band channel information:
Broadband CQI information (WB-CQI) and broadband P MI information (WB-PMI);
Comprise following information in the Report Type of bearing carrier wave component channel information:
CQI information on the current carrier component and the PMI information on the current carrier component.
Current one constantly RI is greater than 1 o'clock,
Comprise following information in the Report Type of carrying broad-band channel information:
Broad-band channel quality indicator (CQI) information that is used for first streams of code words is used for differential channel quality designator (CQI) information and the broadband P MI information based on first streams of code words broadband CQI information of second streams of code words;
Comprise following information in the Report Type of bearing carrier wave component channel information:
Carrier component CQI (CQI) information that is used for first streams of code words on the current carrier component, be used for second streams of code words based on difference carrier component channel quality indicator (CQI) information of first streams of code words carrier component CQI information and the PMI information on the current carrier component.
Wherein, broadband P MI information and each carrier component PMI information are based on all that same codebook selects.
By above content as seen, the PMI information in the solid size basis is carried in broad-band channel information and the carrier component channel information.
Especially, the channel status information reports of feedback can feed back according to the described form of Fig. 3 (a), comprising: RI report information, the broad-band channel report information that comprises broadband CQI information and broadband P MI information and N carrier component channel information;
Wherein, N is the number of carrier component;
Wherein, i carrier component channel information comprise i on the carrier component CQI information (CCi-CQI) and the PMI information (CCi-PMI) on i carrier component; Wherein, the value of i is to N from 1.
Wherein, the WB-CQI among the figure can comprise the CQI information of first streams of code words, perhaps the differential CQI information of the CQI information of first streams of code words and second streams of code words; CCi-CQI can comprise the CQI information of first streams of code words, perhaps the differential CQI information of the CQI information of first streams of code words and second streams of code words.
Specifically, when RI was 1, the content of feedback was followed successively by: RI report information, broadband CQI information, broadband P MI information, CQI information on first carrier component, the PMI information on first carrier component, the CQI information on second carrier component, PMI information on second carrier component, ..., the CQI information on N carrier component, the PMI information on N carrier component.When RI greater than 1 the time, the content of feedback is followed successively by: the RI report information, broadband CQI information, the broadband differential CQI information, broadband P MI information, CQI information on first carrier component, differential CQI information on first carrier component, the PMI information on first carrier component, the CQI information on second carrier component, differential CQI information on second carrier component, PMI information on second carrier component ..., the CQI information on N carrier component, PMI information on the differential CQI information on N carrier component, N carrier component;
The channel status information reports of feedback also can feed back according to the described form of Fig. 3 (b), comprising: the RI report information, comprise the broad-band channel report information of broadband CQI information and broadband P MI information; Wherein, the WB-CQI among the figure can comprise the CQI information of first streams of code words, perhaps the differential CQI information of the CQI information of first streams of code words and second streams of code words.
Specifically, when RI was 1, the content of feedback was followed successively by: RI report information, broadband CQI information and broadband P MI information; When RI greater than 1 the time, the content of feedback is followed successively by: RI report information, broadband CQI information, broadband differential CQI information and broadband P MI information.
The channel status information reports of feedback also can feed back according to the described form of Fig. 3 (c), comprising: RI report information and N carrier component channel information reporting.
Wherein, N is the number of carrier component;
Wherein, i carrier component channel information comprise i on the carrier component CQI information and the PMI information on i carrier component; Wherein, the value of i is to N from 1.
Wherein, the CCi-CQI among the figure can comprise the CQI information of first streams of code words, perhaps the differential CQI information of the CQI information of first streams of code words and second streams of code words.
Specifically, when RI is 1, the content of feedback is followed successively by: the RI report information, CQI information on first carrier component, the PMI information on first carrier component, the CQI information on second carrier component, PMI information on second carrier component, ..., the CQI information on N carrier component, the PMI information on N carrier component.When RI greater than 1 the time, the content of feedback is followed successively by: RI report information, the CQI information on first carrier component, the differential CQI information on first carrier component, PMI information on first carrier component, PMI information on the differential CQI information on the CQI information on second carrier component, second carrier component, second carrier component, ..., PMI information on the differential CQI information on the CQI information on N carrier component, N carrier component, N carrier component.
In the broad-band channel report information, the broadband CQI information that is used for first streams of code words can be 4 bits, and the broadband differential CQI information that is used for second streams of code words can be 3 bits, and broadband P MI information can be 4 bits.
In the carrier component channel information reporting, the carrier component CQI information that is used for first streams of code words can be 4 bits, and the carrier component differential CQI information that is used for second streams of code words can be 3 bits, and carrier component PMI information can be 4 bits.
By present embodiment, it is the requirement for restriction of 11 bits that technical scheme of the present invention can satisfy ascending control channel (PUCCH) heap(ed) capacity, simultaneously, also can satisfy in the LTE-A system feedback requirements for multicarrier component channel state information.
Need to prove that technical scheme of the present invention is not limited to the bit number of above-mentioned setting when practical application, when practical application, might surpass PUCCH and go up supported ultimate load, need be to the PUCCH dilatation.Such as, can adopt following preferred implementation:
If the ultimate load (such as 11 bits) that the bit number of each carrier component channel information or broad-band channel information is supported greater than ascending control channel (PUCCH), then reduce the bit number of the differential CQI (carrier component differential CQI or broadband differential CQI) in each carrier component channel information or the broad-band channel information, the bit number that differential CQI reduces is used to feed back PMI information.By this preferred implementation can be compatible better the LTE system.
Need to prove that in the above embodiment of the present invention, the channel information of different carrier component need transmission separately in different carrier component feedback reports.
Embodiment three, a kind of feedback method of channel status information
The feedback method of channel status information that present embodiment provides is applied to support in the senior Long Term Evolution LTE-A system transmission mode of carrier aggregation, supports the channel condition information feedback system of this feedback arrangement of dicode.
This method mainly comprises the steps:
Subscriber equipment (UE) is to base station feedback order designator (RI) information, and broad-band channel information;
Wherein, RI information is carried on respectively in two different Report Types (ReportType) with broad-band channel information.
Below in conjunction with Fig. 4, the Report Type of the carrying broad-band channel information in the present embodiment is described in detail.
The content of broad-band channel information is determined according to the RI information of previous moment by Report Type.
During current one constantly RI=1,
Comprise following information in the Report Type of carrying broad-band channel information:
PMI information in broad-band channel quality indicator (CQI) information and the dicode basis.
Current one constantly RI is greater than 1 o'clock,
Comprise following information in the Report Type of carrying broad-band channel information:
Broad-band channel quality indicator (CQI) information that is used for first streams of code words, be used for second streams of code words based on differential channel quality designator (CQI) information of first streams of code words broadband CQI information and the dicode PMI information in this.
The described dicode PMI information in this, also can represent to sample merges the pre-coding matrix index of code book; Described sampling merge code book be according to dicode in this code book C1 and/or code book C2 through over-sampling or the common code book that generates of other algorithms.
When sampling merging code book was code book C1, the PMI information in the then described dicode basis was PMI1 information;
When sampling merging code book was code book C2, the PMI information of then described this kind of dicode was PMI2 information.
Wherein, PMI1 information is based on that code book C1 selects, and PMI2 information is based on that code book C2 selects.
The channel status information reports of feedback can feed back according to the described form of Fig. 4, comprising: the RI report information, comprise the PMI information in broadband CQI information (WB-CQI) and the dicode;
Wherein, the WB-CQI among the figure can comprise the CQI information of first streams of code words, perhaps the differential CQI information of the CQI information of first streams of code words and second streams of code words.
Specifically, when RI was 1, the content of feedback was followed successively by: RI report information, broadband CQI information, the PMI information in the dicode basis; When RI greater than 1 the time, the content of feedback is followed successively by: RI report information, broadband CQI information, broadband differential CQI information, the PMI information of dicode in this.
The described dicode PMI information in this can be formed according to PMI1 information and/or dicode the PMI2 information this in of dicode in this.
According to the method for present embodiment for instance, when RI is 1, the RI information of user terminal feedback r bit, the WB-CQI information of c bit, this PMI of dicode information of p bit; Wherein this PMI information of p bit of dicode is made of jointly the PMI1 information of p1 bit and the PMI2 information of p2 bit, p1+p2=p wherein, and p1 and p2 are the integer more than or equal to 0; Perhaps, this PMI information of dicode also can be the p bit be used to indicate pre-coding matrix to merge the code book index value in sampling, wherein said sampling merge code book be by this C1 of dicode and C2 common generate 2 pThe code book of individual code word.
When RI greater than 1 the time, the RI information of user terminal feedback r bit, the WB-CQI information of c bit, this PMI of dicode information of the differential broadband CQI information of dc bit and q bit; Wherein this PMI information of q bit of dicode can be made of jointly the PMI1 information of q1 bit and the PMI2 information of q2 bit, q1+q2=q wherein, and q1 and q2 are the integer more than or equal to 0; Perhaps, wherein this PMI information of dicode also can be the q bit be used to indicate pre-coding matrix to merge the code book index value in sampling, wherein said sampling merge code book be by this C1 of dicode and C2 common generate 2 qThe code book of individual code word.
When RI is 1, and this PMI information of dicode is when being made up of jointly the PMI2 information of the PMI1 information of p1 bit and p2 bit, and when described p2 was 0, then the UE feedack was RI report information, broadband CQI information and the dicode PMI1 in this; When described p1 was 0, then the UE feedback was PMI2 information in RI report information, broadband CQI information and the dicode basis.
When RI greater than 1, and when this PMI information of dicode is made of jointly the PMI2 information of the PMI1 information of q 1 bit and q2 bit, when described q2 was 0, then the UE feedack was the PMI1 in RI report information, broadband CQI information, differential broadband CQI information and the dicode basis; When described q1 was 0, then the UE feedback was PMI2 information in RI report information, broadband CQI information, differential broadband CQI and the dicode basis.
When RI is 1, and this PMI information of dicode be the q bit be used to indicate pre-coding matrix when sampling merges the code book index value, when described sampling merged code book and is the C1 code book of dicode in this, then the UE feedack was RI report information, broadband CQI information and the dicode PMI1 in this; When described sampling merged code book and is the C2 code book of dicode in this, then the UE feedack was RI report information, broadband CQI information and the dicode PMI2 in this.
When RI greater than 1, and this PMI information of dicode be the q bit be used to indicate pre-coding matrix when sampling merges the code book index value, when described sampling merged code book and is the C1 code book of dicode in this, then the UE feedack was RI report information, broadband CQI information, differential broadband CQI information and the dicode PMI1 in this; When described sampling merged code book and is the C2 code book of dicode in this, then the UE feedack was RI report information, broadband CQI information, differential broadband CQI information and the dicode PMI2 in this.
Above-mentioned r can be 3, and c can be 4, and dc can be 3, and p can be 7, and p1 can be 4, and p2 can be 3, and q can be 4, and q1 can be 2, and q2 can be 2.
Need to prove that technical scheme of the present invention is not limited to the bit number of above-mentioned setting when practical application; Need to prove that technical scheme of the present invention is not limited to the bit number of above-mentioned setting when practical application.
Pass through present embodiment, it is maximal bit quantitative limitation requirement that technical scheme of the present invention can satisfy ascending control channel (PUCCH) heap(ed) capacity, also can satisfy simultaneously in the LTE-A system for the feedback requirements of multichannel state information, can adapt to this channel condition information of the dicode feedback arrangement in the LTE-A system.Need to prove that technical scheme of the present invention might surpass PUCCH and go up supported ultimate load, need be to the PUCCH dilatation when practical application.Perhaps, can adopt following preferred implementation:
If the ultimate load (such as 11 bits) that the bit number of broad-band channel information is supported greater than ascending control channel (PUCCH), then reduce the bit number of the broadband differential CQI in the broad-band channel information, the bit number that the broadband differential CQI reduces is used to feed back PMI information.By this preferred implementation can be compatible better the LTE system.
Embodiment four, a kind of feedback method of channel status information
The feedback method of channel status information that present embodiment provides is applied to support in the senior Long Term Evolution LTE-A system transmission mode of carrier aggregation, supports this channel condition information feedback system of dicode.
This method mainly comprises the steps:
Subscriber equipment (UE) is to base station feedback order designator (RI) information, and each carrier component channel information;
Wherein, RI information is carried on respectively in two different Report Types (Report Type) with the carrier component channel information.
Below in conjunction with Fig. 5, the Report Type of the bearing carrier wave component channel information in the present embodiment is described in detail.
The content of carrying in each carrier component channel information is determined according to the RI information of previous moment by Report Type.
During current one constantly RI=1,
Comprise following information in the Report Type of bearing carrier wave component channel information:
PMI information in carrier component CQI (CQI) information and the dicode basis.
Current one constantly RI is greater than 1 o'clock,
Comprise following information in the Report Type of carrying broad-band channel information:
Carrier component CQI (CQI) information that is used for first streams of code words, be used for second streams of code words based on differential channel quality designator (CQI) information of first streams of code words carrier component CQI information and the dicode PMI information in this.
The described dicode PMI information in this, also can represent to sample merges the pre-coding matrix index of code book; Described sampling merge code book be according to dicode in this code book C1 and/or code book C2 through over-sampling or the common code book that generates of other algorithms.
When sampling merging code book was code book C1, the PMI information in the then described dicode basis was PMI1 information;
When sampling merging code book was code book C2, the PMI information of then described this kind of dicode was PMI2 information.
Wherein, PMI1 information is based on that code book C1 selects, and PMI2 information is based on that code book C2 selects.
The channel status information reports of feedback can feed back according to the described form of Fig. 5, comprising: the RI report information, comprise carrier component CQI information and the dicode PMI information in this;
Carrier component CQI information can comprise the CQI information of first streams of code words, perhaps the differential CQI information of the CQI information of first streams of code words and second streams of code words.
Specifically, when RI was 1, the content of feedback was followed successively by: RI report information, carrier component CQI information, the PMI information in the dicode basis; When RI greater than 1 the time, the content of feedback is followed successively by: RI report information, carrier component CQI information, difference carrier component CQI information, the PMI information of dicode in this.
According to the method for present embodiment for instance, when RI is 1, the RI information of user terminal feedback r bit, the carrier component CQI information of c bit, this PMI of dicode information of p bit; Wherein dicode PMI information originally is made of jointly the PMI1 information of p1 bit and the PMI2 information of p2 bit, wherein p1+p2=p; Perhaps, this PMI information of dicode also can be the p bit be used to indicate pre-coding matrix to merge the code book index value in sampling, wherein said sampling merge code book be by this C1 of dicode and C2 common generate 2 pThe code book of individual code word.
When RI greater than 1 the time, the RI information of user terminal feedback r bit, the carrier component CQI information of c bit, the difference carrier component CQI information of dc bit and this PMI of dicode information of q bit; Wherein dicode PMI information originally can be made of jointly the PMI1 information of q1 bit and the PMI2 information of q2 bit; Perhaps, wherein this PMI information of dicode also can be the q bit be used to indicate pre-coding matrix to merge the code book index value in sampling, wherein said sampling merge code book be by this C1 of dicode and C2 common generate 2 qThe code book of individual code word.
When RI is 1, and this PMI information of dicode is when being made up of jointly the PMI2 information of the PMI1 information of p1 bit and p2 bit, and when described p2 was 0, then the UE feedack was RI report information, carrier component CQI information and the dicode PMI1 in this; When described p1 was 0, then the UE feedback was PMI2 information in RI report information, carrier component CQI information and the dicode basis.
When RI greater than 1, and when this PMI information of dicode is made of jointly the PMI2 information of the PMI1 information of q 1 bit and q2 bit, when described q2 was 0, then the UE feedack was the PMI1 in RI report information, carrier component CQI information, difference carrier component CQI information and the dicode basis; When described q1 was 0, then the UE feedback was PMI2 information in RI report information, carrier component CQI information, difference carrier component CQI and the dicode basis.
When RI is 1, and this PMI information of dicode be the q bit be used to indicate pre-coding matrix when sampling merges the code book index value, when described sampling merged code book and is the C1 code book of dicode in this, then the UE feedack was RI report information, carrier component CQI information and the dicode PMI1 in this; When described sampling merged code book and is the C2 code book of dicode in this, then the UE feedack was RI report information, carrier component CQI information and the dicode PMI2 in this.
When RI greater than 1, and this PMI information of dicode be the q bit be used to indicate pre-coding matrix when sampling merges the code book index value, when described sampling merged code book and is the C1 code book of dicode in this, then the UE feedack was RI report information, carrier component CQI information, difference carrier component CQI information and the dicode PMI1 in this; When described sampling merged code book and is the C2 code book of dicode in this, then the UE feedack was RI report information, carrier component CQI information, difference carrier component CQI information and the dicode PMI2 in this.
Above-mentioned r can be 3, and c can be 4, and dc can be 3, and p can be 7, and p1 can be 4, and p2 can be 3, and q can be 4, and q1 can be 2, and q2 can be 2.Need to prove that technical scheme of the present invention is not limited to the bit number of above-mentioned setting when practical application.
Pass through present embodiment, it is maximal bit quantitative limitation requirement that technical scheme of the present invention can satisfy ascending control channel (PUCCH) heap(ed) capacity, also can satisfy simultaneously in the LTE-A system for the feedback requirements of multicarrier component channel state information, can adapt to this channel condition information of the dicode feedback arrangement in the LTE-A system.Need to prove that technical scheme of the present invention might surpass PUCCH and go up supported ultimate load, need be to the PUCCH dilatation when practical application.Such as, can adopt following preferred implementation:
If the ultimate load (such as 11 bits) that the bit number of each carrier component channel information is supported greater than ascending control channel (PUCCH), then reduce the bit number of the carrier component differential CQI in each carrier component channel information, the bit number that differential CQI reduces is used to feed back PMI information.By this preferred implementation can be compatible better the LTE system.
Need to prove that in the above embodiment of the present invention, the channel information of different carrier component need transmission separately in different carrier component feedback reports.
The feedback device of embodiment five, channel condition information
As shown in Figure 6, the feedback device of the channel condition information that provides at present embodiment mainly comprises module 22 and feedback module 24 is set, wherein:
Module 22 is set, is used for the designator (PMI) that carries pre-coding matrix being set in broad-band channel information and/or carrier component channel information;
Feedback module 24, connection is provided with module 22, is used for the information to base station feedback RI, and broad-band channel information and/or each carrier component channel information;
Wherein, RI information, broad-band channel information, carrier component channel information are carried on respectively in three different Report Types (Report Type).
Preferably, the content of carrying in broad-band channel information and/or each the carrier component channel information is determined according to the information of previous moment by Report Type (Report Type).
Preferably, module 22 is set also to be used under the situation of the maximum load bit number that the bit number of each carrier component channel information or broad-band channel information is supported greater than ascending control channel (PUCCH), reduce the bit number of the differential CQI (carrier component differential CQI or broadband differential CQI) in each carrier component channel information or the broad-band channel information, and the bit number that differential CQI is reduced is used to feed back PMI information.
Those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
Though the disclosed execution mode of the present invention as above, the execution mode that described content just adopts for the ease of understanding the present invention is not in order to limit the present invention.Technical staff in any the technical field of the invention; under the prerequisite that does not break away from the disclosed spirit and scope of the present invention; can do any modification and variation what implement in form and on the details; but scope of patent protection of the present invention still must be as the criterion with the scope that appending claims was defined.

Claims (13)

1. a feedback method of channel status information is characterized in that, comprising:
Subscriber equipment (UE) is to base station feedback order designator (RI) information, and broad-band channel information and/or each carrier component channel information;
Wherein, RI information, broad-band channel information, carrier component channel information are carried on respectively in the different Report Type (Report Type).
2. method according to claim 1 is characterized in that:
Content in described broad-band channel information and/or each the carrier component channel information is determined according to the RI information of previous moment by Report Type.
3. method according to claim 1 is characterized in that:
For this feedback arrangement of solid size:
Described broad-band channel information comprises broadband CQI information and broadband P MI information; Described carrier component channel information comprises CQI information and the PMI information on each carrier component;
For this feedback arrangement of dicode, and UE is when base station feedback RI information, broad-band channel information and each carrier component channel information:
Described broad-band channel information comprises the PMI1 information in broadband CQI information and the dicode basis; Described carrier component channel information comprises CQI information on each carrier component and the dicode PMI2 information in this;
For this feedback arrangement of dicode, and UE is when base station feedback RI information and broad-band channel information or each carrier component channel information:
Described broad-band channel information comprises the PMI information in broadband CQI information and the dicode basis; Described carrier component channel information comprises CQI information on each carrier component and the dicode PMI information in this.
4. method according to claim 3 is characterized in that:
For this feedback arrangement of solid size, the RI of described previous moment is 1 o'clock:
Carry in the Report Type of described broad-band channel information and comprise broadband CQI information and broadband P MI information;
Carry the CQI information that comprises in the Report Type of described carrier component channel information on the current carrier component and the PMI information on the current carrier component;
For this feedback arrangement of solid size, the RI of described previous moment was greater than 1 o'clock:
Carry in the Report Type of described broad-band channel information and comprise the broadband CQI information that is used for first streams of code words, be used for the broadband differential CQI information and the broadband P MI information based on the broadband CQI information of described first streams of code words of second streams of code words;
Carry the carrier component CQI information that is used for first streams of code words that comprises in the Report Type of described carrier component channel information on the current carrier component, be used for second streams of code words based on the difference carrier component CQI information of the carrier component CQI information of first streams of code words and the PMI information on the current carrier component.
5. method according to claim 4 is characterized in that:
For this feedback arrangement of solid size, described broadband P MI information and each carrier component PMI information are based on that same code book selects.
6. method according to claim 3 is characterized in that:
For this feedback arrangement of dicode, the RI of described previous moment is 1 o'clock:
Carry and comprise broadband CQI information and the dicode PMI1 information in this in the Report Type of described broad-band channel information; Carry the CQI information that comprises in the Report Type of described carrier component channel information on the current carrier component and the dicode PMI2 information in this;
Perhaps, carry and comprise broadband CQI information and the dicode PMI information in this in the Report Type of described broad-band channel information; Carry the CQI information that comprises in the Report Type of described carrier component channel information on the current carrier component and the dicode PMI information in this;
For this feedback arrangement of dicode, the RI of described previous moment was greater than 1 o'clock:
Carry in the Report Type of described broad-band channel information and comprise the broadband CQI information that is used for first streams of code words, be used for second streams of code words based on the broadband differential CQI information of the broadband CQI information of described first streams of code words and the dicode PMI1 information in this; Carry the carrier component CQI information that is used for first streams of code words that comprises in the Report Type of described carrier component channel information on the current carrier component, be used for second streams of code words based on the difference carrier component CQI information of the carrier component CQI information of first streams of code words and the dicode PMI2 information in this;
Perhaps, carry in the Report Type of described broad-band channel information and comprise the broadband CQI information that is used for first streams of code words, be used for second streams of code words based on the broadband differential CQI information of the broadband CQI information of described first streams of code words and the dicode PMI information in this; Carry the carrier component CQI information that is used for first streams of code words that comprises in the Report Type of described carrier component channel information on the current carrier component, be used for second streams of code words based on the difference carrier component CQI information of the carrier component CQI information of first streams of code words and the dicode PMI information in this.
7. method according to claim 6 is characterized in that:
For this feedback arrangement of dicode, the described dicode PMI1 information in this is based on that the code book C1 of dicode in this select, and the PMI2 information of described dicode in this is based on that the code book C2 of dicode in this select.
8. method according to claim 6 is characterized in that:
For this feedback arrangement of dicode,
The described dicode PMI information in this is formed according to PMI1 information and/or the PMI2 information of described dicode in this of described dicode in this;
Perhaps, the PMI information in the described dicode basis, the expression sampling merges the pre-coding matrix index of code book;
Wherein, this code book of described sampling combine code according to code book C1 in the dicode basis and/or code book C2 generation.
9. method according to claim 8 is characterized in that:
Described RI is 1 o'clock, and the PMI information of p bit is made of jointly the PMI1 information of p1 bit and the PMI2 information of p2 bit in the described dicode basis, wherein p1+p2=p;
When RI greater than 1 the time, wherein dicode in this PMI information of q bit form q1+q2=q wherein jointly by the PMI1 information of q1 bit and the PMI2 information of q2 bit;
Wherein, described p1, p2, q1 and q2 are the integer more than or equal to 0.
10. method according to claim 9 is characterized in that:
Described RI be 1 and p1 be 0 o'clock, UE feedback be RI report information, broadband CQI information and dicode PMI2 information in this;
Described RI be 1 and p2 be 0 o'clock, the UE feedack is RI report information, broadband CQI information and the dicode PMI1 in this;
Described RI greater than 1 and q1 be 0 o'clock, UE feedback be RI report information, broadband CQI information, differential broadband CQI and dicode PMI2 information in this;
Described RI greater than 1 and q2 be 0 o'clock, the UE feedack is RI report information, broadband CQI information, differential broadband CQI information and the dicode PMI1 in this.
11. method according to claim 8 is characterized in that:
When described sampling merged code book and is the code book C1 of described dicode in this, the PMI information of described dicode in this was the PMI1 information of described dicode in this;
When described sampling merged code book and is the code book C2 of described dicode in this, the PMI information of described dicode in this was the PMI2 information of described dicode in this.
12. the feedback device of a channel condition information is characterized in that, comprises module and feedback module are set, wherein:
The described module that is provided with is used in broad-band channel information and/or carrier component channel information the designator (PMI) that carries pre-coding matrix being set;
Described feedback module is used for to base station feedback order designator (RI) information, and described broad-band channel information and/or each carrier component channel information;
Wherein, described RI information, broad-band channel information and carrier component channel information are carried on respectively in three different Report Types.
13. device according to claim 12 is characterized in that:
Content in described broad-band channel information and/or each the carrier component channel information is determined according to the RI information of previous moment by Report Type.
CN201010262755.0A 2010-08-18 2010-08-18 Feedback method and device of channel state information Active CN101917260B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201010262755.0A CN101917260B (en) 2010-08-18 2010-08-18 Feedback method and device of channel state information
PCT/CN2011/076734 WO2012022202A1 (en) 2010-08-18 2011-06-30 Method and apparatus for feeding back channel status information

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201010262755.0A CN101917260B (en) 2010-08-18 2010-08-18 Feedback method and device of channel state information

Publications (2)

Publication Number Publication Date
CN101917260A true CN101917260A (en) 2010-12-15
CN101917260B CN101917260B (en) 2015-01-28

Family

ID=43324662

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201010262755.0A Active CN101917260B (en) 2010-08-18 2010-08-18 Feedback method and device of channel state information

Country Status (2)

Country Link
CN (1) CN101917260B (en)
WO (1) WO2012022202A1 (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102263583A (en) * 2011-08-19 2011-11-30 电信科学技术研究院 Method for sending and receiving channel state information (CSI), system and equipment thereof
CN102271028A (en) * 2011-08-03 2011-12-07 中兴通讯股份有限公司 Method and device for feeding back channel state information
WO2012022202A1 (en) * 2010-08-18 2012-02-23 中兴通讯股份有限公司 Method and apparatus for feeding back channel status information
WO2012083530A1 (en) * 2010-12-22 2012-06-28 富士通株式会社 Resource allocation method, channel state information transmission method, base station and user equipment
WO2012094930A1 (en) * 2011-01-12 2012-07-19 中兴通讯股份有限公司 Method and user equipment for feeding back channel state information
CN102986184A (en) * 2011-06-23 2013-03-20 华为技术有限公司 Method, receiver, transmitter and communication system for suppressing out-of-band radiation
CN103460634A (en) * 2011-02-18 2013-12-18 高通股份有限公司 Feedback reporting based on channel state information reference signal (CSI-RS) groups
US8817647B2 (en) 2011-02-15 2014-08-26 Mediatek Inc. Priority rules of periodic CSI reporting in carrier aggregation
CN105871435A (en) * 2016-04-01 2016-08-17 北京北方烽火科技有限公司 Channel status information feedback method, device and user equipment
US9673945B2 (en) 2011-02-18 2017-06-06 Qualcomm Incorporated Implicitly linking aperiodic channel state information (A-CSI) reports to CSI-reference signal (CSI-RS) resources
CN107104717A (en) * 2013-06-05 2017-08-29 Lg电子株式会社 The method and apparatus for sending channel condition information in a wireless communication system
CN110830165A (en) * 2013-05-24 2020-02-21 中兴通讯股份有限公司 Channel state information feedback method and terminal
CN111769902A (en) * 2011-08-15 2020-10-13 华为技术有限公司 Method for transmitting channel state information, user equipment and base station
US10924162B2 (en) 2017-05-05 2021-02-16 At&T Intellectual Property I, L.P. Facilitation of incremental feedback for 5G or other next generation network
CN114285447A (en) * 2017-01-09 2022-04-05 中兴通讯股份有限公司 Method and device for feeding back and determining channel state information

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090207784A1 (en) * 2008-02-14 2009-08-20 Lg Electronics Inc. Rank feedback method for multiple-input multiple-output transmission
US20100075672A1 (en) * 2008-09-25 2010-03-25 Electronics And Telecommunications Research Institute Multiple antenna wireless communication system which adaptively determines downlink transmission mode

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101917260B (en) * 2010-08-18 2015-01-28 中兴通讯股份有限公司 Feedback method and device of channel state information

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090207784A1 (en) * 2008-02-14 2009-08-20 Lg Electronics Inc. Rank feedback method for multiple-input multiple-output transmission
US20100075672A1 (en) * 2008-09-25 2010-03-25 Electronics And Telecommunications Research Institute Multiple antenna wireless communication system which adaptively determines downlink transmission mode

Cited By (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012022202A1 (en) * 2010-08-18 2012-02-23 中兴通讯股份有限公司 Method and apparatus for feeding back channel status information
RU2555365C2 (en) * 2010-12-22 2015-07-10 Фудзицу Лимитед Resource allocation method, channel state information transmission method, base station and user equipment
US10631332B2 (en) 2010-12-22 2020-04-21 Fujitsu Limited Method for resource allocation, method for channel state information transmission, base station and user equipment
WO2012083530A1 (en) * 2010-12-22 2012-06-28 富士通株式会社 Resource allocation method, channel state information transmission method, base station and user equipment
RU2629008C1 (en) * 2010-12-22 2017-08-24 Фудзицу Лимитед Method of distribution of resources, method of transmitting information about state of channel, base station and user equipment
US9510333B2 (en) 2010-12-22 2016-11-29 Fujitsu Limited Method for resource allocation, method for channel state information transmission, base station and user equipment
RU2600978C1 (en) * 2010-12-22 2016-10-27 Фудзицу Лимитед Method of allocating resources, method of transmitting channel state information, base station and user equipment
US9155074B2 (en) 2010-12-22 2015-10-06 Fujitsu Limited Method for resource allocation, method for channel state information transmission, base station and user equipment
WO2012094930A1 (en) * 2011-01-12 2012-07-19 中兴通讯股份有限公司 Method and user equipment for feeding back channel state information
US8929476B2 (en) 2011-01-12 2015-01-06 Zte Corporation Method and user equipment for feeding back channel state information
TWI463899B (en) * 2011-02-15 2014-12-01 Mediatek Inc Method and user equipment of determining priority rules of periodic csi reporting in carrier aggregation
US9247557B2 (en) 2011-02-15 2016-01-26 Mediatek Inc. Priority rules of periodic CSI reporting in carrier aggregation
US8817647B2 (en) 2011-02-15 2014-08-26 Mediatek Inc. Priority rules of periodic CSI reporting in carrier aggregation
US9673945B2 (en) 2011-02-18 2017-06-06 Qualcomm Incorporated Implicitly linking aperiodic channel state information (A-CSI) reports to CSI-reference signal (CSI-RS) resources
US10439782B2 (en) 2011-02-18 2019-10-08 Qualcomm Incorporated Implicitly linking aperiodic channel state information (A-CSI) reports to CSI-reference signal (CSI-RS) resources
CN103460634B (en) * 2011-02-18 2016-08-24 高通股份有限公司 Feedback report based on channel state information reference signals (CSI-RS) group
CN103460634A (en) * 2011-02-18 2013-12-18 高通股份有限公司 Feedback reporting based on channel state information reference signal (CSI-RS) groups
US9559820B2 (en) 2011-02-18 2017-01-31 Qualcomm Incorporated Feedback reporting based on channel state information reference signal (CSI-RS) groups
CN102986184A (en) * 2011-06-23 2013-03-20 华为技术有限公司 Method, receiver, transmitter and communication system for suppressing out-of-band radiation
CN102271028B (en) * 2011-08-03 2017-04-12 中兴通讯股份有限公司 Method and device for feeding back channel state information
CN102271028A (en) * 2011-08-03 2011-12-07 中兴通讯股份有限公司 Method and device for feeding back channel state information
CN111769902B (en) * 2011-08-15 2023-10-13 华为技术有限公司 Method for transmitting channel state information, user equipment and base station
CN111769902A (en) * 2011-08-15 2020-10-13 华为技术有限公司 Method for transmitting channel state information, user equipment and base station
CN102263583A (en) * 2011-08-19 2011-11-30 电信科学技术研究院 Method for sending and receiving channel state information (CSI), system and equipment thereof
CN114257341A (en) * 2013-05-24 2022-03-29 中兴通讯股份有限公司 Channel state information feedback method and terminal
CN110830165A (en) * 2013-05-24 2020-02-21 中兴通讯股份有限公司 Channel state information feedback method and terminal
CN114257341B (en) * 2013-05-24 2023-08-29 中兴通讯股份有限公司 Channel state information feedback method and terminal
CN110830165B (en) * 2013-05-24 2021-12-21 中兴通讯股份有限公司 Channel state information feedback method and terminal
US10868597B2 (en) 2013-06-05 2020-12-15 Lg Electronics Inc. Method and apparatus for transmitting channel state information in wireless communication system
US10998950B2 (en) 2013-06-05 2021-05-04 Lg Electronics Inc. Method and apparatus for transmitting channel state information in wireless communication system
CN107104717B (en) * 2013-06-05 2020-06-30 Lg电子株式会社 Method and apparatus for transmitting channel state information in wireless communication system
CN107104717A (en) * 2013-06-05 2017-08-29 Lg电子株式会社 The method and apparatus for sending channel condition information in a wireless communication system
CN105871435A (en) * 2016-04-01 2016-08-17 北京北方烽火科技有限公司 Channel status information feedback method, device and user equipment
CN105871435B (en) * 2016-04-01 2019-04-02 北京北方烽火科技有限公司 Channel state information feedback method, device and user equipment
CN114285447A (en) * 2017-01-09 2022-04-05 中兴通讯股份有限公司 Method and device for feeding back and determining channel state information
CN114285447B (en) * 2017-01-09 2022-11-08 中兴通讯股份有限公司 Method and device for feeding back and determining channel state information
US10924162B2 (en) 2017-05-05 2021-02-16 At&T Intellectual Property I, L.P. Facilitation of incremental feedback for 5G or other next generation network
US11569874B2 (en) 2017-05-05 2023-01-31 At&T Intellectual Property I, L.P. Facilitation of incremental feedback for 5G or other next generation network

Also Published As

Publication number Publication date
WO2012022202A1 (en) 2012-02-23
CN101917260B (en) 2015-01-28

Similar Documents

Publication Publication Date Title
CN101917260B (en) Feedback method and device of channel state information
CN101867458B (en) The feedback method of channel condition information and device
CN101877627B (en) The feedback method of channel condition information and terminal
CN113708810B (en) Communication method and device
CN101969363B (en) Channel state information feedback method and terminal
CN102237969B (en) Channel state information transmission method and device
CN102835054B (en) Method and system for precoding
CN101958773B (en) The method of feedback channel information and terminal
CN101917365B (en) Method, device and system for configuring codebook
CN102013956B (en) A kind of channel state information feedback method and device
CN101944985B (en) Feedback method for channel state information
CN101771505B (en) A kind of indicating means of extra pre-coding matrix index and system
KR101896753B1 (en) Method and terminal for feeding back channel state information
CN101969367B (en) Channel information feedback method and terminal
CN101771510B (en) Method and system for feeding backing MIMO channel information
CN104488210A (en) Precoding matrix indicator feedback method, receiving end and transmitting end
CN101931513A (en) Channel state information feedback method and user equipment
CN101820335B (en) A kind of method using secondary code words feeding back channel state information
CN102468925B (en) Precoding matrix index reporting and precoding processing method, system and apparatus thereof
CN101902307B (en) Feedback method of channel state information and terminal
CN101777968B (en) Method, system and mobile terminal for transmitting channel information
CN101902309B (en) Feedback method and terminal for channel state information
CN102025450B (en) Method for feeding back channel information coding and mobile terminal
CN101902263B (en) Feedback method of channel state information
CN101777965B (en) Channel state information feedback method and user terminal

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant