CN103391154B - The feedback method and device of channel condition information - Google Patents
The feedback method and device of channel condition information Download PDFInfo
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- CN103391154B CN103391154B CN201210144322.4A CN201210144322A CN103391154B CN 103391154 B CN103391154 B CN 103391154B CN 201210144322 A CN201210144322 A CN 201210144322A CN 103391154 B CN103391154 B CN 103391154B
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Abstract
The invention discloses the feedback method of channel condition information and device, this method includes：The RI that terminal receives the channel condition information CSI RS for indicating the multiple CSI RS of terminal feedback that base station is sent carries out combined coding, and feeds back to base station：The same interferometry resource of the whether corresponding configurations of multiple CSI RS；The bit number that the RI combined codings got are supported；The code book limitation cluster of the base station configuration got；The resource for carrying multiple CSI RS is overlapping.By the present invention, the load of feedback channel feedback information is reduced.
Description
Technical field
The present invention relates to the communications field, in particular to the feedback method and device of a kind of channel condition information.
Background technology
Long Term Evolution (Long Term Evolution, referred to as LTE) system after it experienced the several versions of R8/9/10,
It is again accurate successively to study R11 technologies.Current part R8 products start progressively commercialization, and R9 and R10 need further product programming.
R8 the and R9 stages are being experienced, R10 adds many new characteristics, such as demodulation ginseng again on the basis of the above two
Examine signal (Demodulation Reference Signal, referred to as DMRS), channel state information reference signals (Channel
State Information Reference Signal, referred to as CSI-RS) etc. pilot tone characteristic, 8 antennas support etc. transmission and
Feedback characteristics etc., particularly inter-cell interference offset enhancing (ehanced Inter-Cell Interference
Cancellin, referred to as eICIC) technology is on the basis for considering R8/9ICIC, the further interference between consideration cell
Avoid technology.Done for solving cell of the technology of interference problem between cell in the case where R10 mainly considers homogenous networks initial stage in stage
Disturb and avoid, wherein the consideration eICIC technologies of main flow and multipoint cooperative (Coordinated Multi-point, referred to as CoMP)
Technology.CoMP as the term suggests exactly multiple nodes cooperate to one or more UE identical running time-frequency resource or it is different when
Frequency resource sends data.So technology can reduce the interference between cell, improve the throughput of cell edge, expand cell
Covering.But it is due to discuss that the later stage considers heterogeneous network and introduces more scenes, complexity and the R10 discussion of CoMP technologies
Time restriction, it is final to determine not introducing extra CoMP standardized contents in the R10 stages, but can be examined in design CSI-RS
Consider the demand of CoMP parts to design, thus CoMP technologies after 60bis meetings with regard to not carrying out further discussion.
Feedback for R10 can be largely classified into periodic feedback and non-periodic feedback.
Uplink authorization or Stochastic accessing authorization control signaling is needed to trigger non-periodic feedback for non-periodic feedback.It is right
Uplink authorization or Stochastic accessing authorization control signaling is needed to trigger non-periodic feedback in non-periodic feedback.Aperiodic feedback
Pattern can be divided into following several：
Table 1:CQI and PMI Feedback Types for PUSCH CSI reporting Modes
Aperiodic Report mode is configured to end side by high-level signaling cqi-ReportModeAperiodic.
Feedback is just needed when base station side configurating terminal side has PMI/RI feedback configurations using transmission mode 3,4,8 and 9
RI.For broadband feedback pattern 1-2, end side needs the broadband fed back multiple subband PMI and calculated based on multiple subband PMI
CQI, for the subband CQI of high level configuration, including pattern 3-0 and pattern 3-1, feedback one is needed for pattern 3-0 end sides
The CQI in broadband and multiple subband CQI, and broadband CQI and subband CQI be all based on code word to be calculated, for transmission
Pattern 3, CQI calculating needs to consider different RI values, all assumes RI=1 to count for the transmission mode in addition to pattern 3
Calculate CQI.Need to feed back the PMI in a broadband for pattern 3-1 end sides, then calculated respectively simultaneously according to the broadband PMI of feedback
Feed back a broadband CQI and multiple subband CQI, wherein CQI calculating for transmission mode 4,8,9 will the value based on RI come true
It is fixed, CQI calculated value is determined equal to 1 for other transmission modes RI value.For pattern 3-0 and pattern 3-1 subband CQI
Using differential feedback.Include pattern 2-0 and 2-2 for the UE subband feedbacks selected.Feedback one is needed for pattern 2-0 end sides
CQI and broadband CQI of individual M Prefer subbands, for transmission mode 3, CQI calculating needs to consider that different RI take
Value, all assumes RI=1 to calculate CQI for the transmission mode in addition to pattern 3.Feedback one is needed for pattern 2-2 end sides
The PMI in PMI and broadband of individual M Prefer subbands, the CQI for additionally needing one M Prefer subband of feedback (is based on one
The PMI of individual M Prefer subbands is calculated) and a broadband CQI (PMI based on a broadband is calculated).
It is semi-statically configured, can be divided into following several by high level for periodic feedback：
Table 2:CQI and PMI Feedback Types for PUCCH CSI reporting Modes
For transmission mode 9, and the terminal of 8 CSI-RS antenna ports is configured with, pattern 1-1 can be divided into subpattern
1 and subpattern 2, different subpatterns are configured by high-level signaling PUCCH_format1-1_CSI_reporting_mode.
Periodic feedback can distinguish different feedback cycle and sub-frame offset feedback entity by following classification：
The subband CQI of the report UE selections of Type 1.
Type 1a include subband CQI and second PMI.
Type 2, Type 2b and Type 2c reports broadband CQI and PMI.
Type 2a report broadband PMI feedbacks.
Type 3 reports RI.
Type 4 reports broadband CQI
Type 5 reports RI and broadband PMI
Type 6 reports RI and PTI
Broadband feedback includes pattern 1-0, pattern 1-1.Wherein pattern 1-1 can be divided into subpattern 1 and subpattern 2 again.It is right
In pattern 1-0, end side feeds back Type3 RI and Type4 broadband CQI for transmission mode 3.For pattern 1-
1, other transmission modes in addition to transmission mode 9 configures 8 CSI-RS ports feed back Type3 RI and Type2 width
Band CQI and broadband PMI.The pattern 1-1 of the 8 CSI-RS ports end side of subpattern 1 feedback is configured for transmission mode 9
Type5 RI and first broadband PMI combined coding and Type2b broadbands CQI and second broadband PMI combined coding.It is right
In transmission mode 9 configure 8 CSI-RS ports pattern 1-1 subpattern 2, end side feed back a Type3 RI and
Type2c broadband CQI, first broadband PMI and second broadband PMI combined coding.The subband CQI bags selected for UE
Include pattern 2-0 and pattern 2-1.For pattern 2-0, end side reports Type3 RI's and Type4 for transmission mode 3
Subband CQI in CQI and the Type1 portions of bandwidth of broadband.For transmission mode 2-1, except transmission mode 9 configures 8 CSI-RS ends
Other transmission modes outside mouthful feed back Type3 RI and Type2 broadband CQI and PMI combined coding and Type1
Subband CQI in portions of bandwidth.The pattern 2-1 of 8 CSI-RS ports is configured for transmission mode 9, Type6 PTI is fed back
With RI combined coding.Then feedback system is further selected according to PTI value, as PTI=0, feeds back a Type2a
First, broadband PMI, then feed back a Type2b broadband CQI and second broadband PMI combined coding, work as PTI=1
When, feed back a Type2b broadband CQI and second broadband PMI combined coding, then feed back a 1a subband CQI and
Second subband PMI combined coding.
For in correlation technique during the channel condition information of multiple CSI-RSs expense than it is larger the problem of, at present not yet
Propose effective solution.
The content of the invention
For in correlation technique during the channel condition information of multiple CSI-RSs expense than it is larger the problem of, the present invention is carried
A kind of channel state information feedback method and device are supplied, at least to solve the problem.
According to an aspect of the invention, there is provided a kind of channel state information feedback method, including：Terminal receives base station
The signaling of the channel condition information for indicating the multiple CSI-RS of terminal feedback of transmission；The terminal is according to one below or its group
Close and combined coding is carried out to the RI of multiple channel state information reference signals (CSI-RS), and feed back to the base station：
The same interferometry resource of the whether corresponding configurations of multiple CSI-RS；
The bit number that the RI combined codings got are supported；
The code book limitation cluster of the base station configuration got；
The resource for carrying multiple CSI-RS is overlapping.
Preferably, the terminal is according to the same interferometry resource determination pair of the whether corresponding configurations of the multiple CSI-RS
Multiple CSI-RS RI, which carries out combined coding, to be included：
The corresponding RI of multiple CSI-RS that the terminal-pair is configured to same interferometry resource carry out combined coding.
Preferably, the bit that the rank information RI combined codings that the terminal is configured according to the base station got are supported
Number determines that carrying out combined coding to multiple CSI-RS RI includes：
The bit number got is distributed equally the terminal on the multiple CSI-RS, according to described flat
The result distributed determines the maximum RI bit numbers supported or RI maximum of each CSI-RS in the multiple CSI-RS
Value, and combined coding is carried out to the multiple CSI-RS RI.
Preferably, the code book limitation cluster that the terminal is configured according to the base station got is determined to multiple CSI-RS's
RI, which carries out combined coding, to be included：
The code book limitation cluster that the terminal is configured according to the base station determines each CSI- in the multiple CSI-RS
The bit number or RI maximum for the RI that RS maximums are supported, and combined coding is carried out to the multiple CSI-RS RI；
The code book that the terminal configures the base station got limits the maximum number of plies of cluster the multiple
Be distributed equally on CSI-RS, determine the maximum RI supported of each CSI-RS in the multiple CSI-RS bit number or
Person RI maximum, and combined coding is carried out to the multiple CSI-RS RI；
Code book limitation cluster of the terminal according to corresponding to each CSI-RS in the multiple CSI-RS determines each CSI-
The bit number or RI maximum for the RI that RS maximums are supported, and combined coding is carried out to the multiple CSI-RS RI.
Preferably, the terminal determines to enter multiple CSI-RS RI according to the resource for carrying the multiple CSI-RS is overlapping
Row combined coding includes：
The terminal determines to hold according to each CSI-RS RI cycle in the multiple CSI-RS and sub-frame offset information
The physical resource for carrying the multiple CSI-RS is overlapping；
The terminal judges that the bit number of the multiple CSI-RS RI progress combined codings is propped up less than RI combined codings
The bit number held；
If it is judged that being yes, each CSI-RS RI carries out joint volume in the multiple CSI-RS of terminal-pair
Code；
If it is judged that being no, the terminal is matched somebody with somebody according to the multiple CSI-RS configuration sequence, correspondence interferometry
The sizes of each RI values determines priority in the order and/or the multiple CSI of collision put, and true according to the priority
The fixed one or more CSI-RS abandoned from the multiple CSI-RS RI, by each CSI-RS in the multiple CSI-RS
Remove that remaining RI after the RI of the discarding carries out combined coding or feedback priority level highest CSI is corresponding in RI
RI。
Preferably, the combined coding is fed back to the base station and included by the terminal：The terminal compiles the joint
Code feeds back to the base station in same subframe.
Preferably, the bit number that the RI combined codings are supported is that base station is sent to the terminal or the bit number
Pre-set for base station and the terminal.
According to another aspect of the present invention there is provided a kind of information feedback device, including：Receiving module, is used
In the signaling for receiving the channel condition information for indicating the multiple CSI-RS of terminal feedback that base station is sent；First coding module, is used
In carrying out combined coding to multiple channel state information reference signals CSI-RS RI according to one below or its combination：
The same interferometry resource of the whether corresponding configurations of multiple CSI-RS；
The bit number that the RI combined codings got are supported；
The code book limitation cluster of the base station configuration got；
The resource for carrying the multiple CSI-RS is overlapping；
Feedback module, for combined coding to be fed back into base station.
Preferably, first coding module is used for multiple CSI-RS correspondences to being configured to same interferometry resource
RI carry out combined coding.
Preferably, first coding module includes：First distribute module, for by the bit number got in institute
State and be distributed equally on multiple CSI-RS；First determining module is described more for being determined according to the result of the mean allocation
The each CSI-RS maximum RI supported bit number or the maximum of the RI in individual CSI-RS；Second coding module,
For the multiple CSI-RS RI to be carried out into combined coding.
Preferably, first coding module includes：
Processing module, the code book limitation cluster for being configured according to the base station determines each in the multiple CSI-RS
The bit number or RI maximum for the RI that CSI-RS maximums are supported；3rd coding module, for the multiple CSI-RS
RI carry out combined coding；
Second distribute module a, code book for the base station got to be configured limits the maximum number of plies of cluster in institute
State and be distributed equally on multiple CSI-RS；Second determining module, for determining that each CSI-RS is most in the multiple CSI-RS
The RI supported greatly bit number or RI maximum；3rd coding module, for the RI progress to the multiple CSI-RS
Combined coding；
Second determining module, is additionally operable to the code book limitation according to corresponding to each CSI-RS in the multiple CSI-RS
Cluster determines the bit number or RI maximum for the RI that each CSI-RS maximums are supported；4th coding module, for described
Multiple CSI-RS RI carries out combined coding.
Preferably, first coding module includes：
3rd determining module, for according to each CSI-RS RI cycle in the multiple CSI-RS and sub-frame offset letter
Breath determines that the multiple CSI-RS of carrying physical resource is overlapping；
Judge module, for judging that the multiple CSI-RS RI carries out the bit number of combined coding less than RI combined codings
The bit number supported；
5th coding module, for when the judged result of judge module is to be, to each in the multiple CSI-RS
CSI-RS RI carries out combined coding；
4th determining module, for when the judged result of the judge module is no, according to the multiple CSI-RS's
The size of each RI values comes true in the multiple CSI-RS of configuration sequence, the order of correspondence interferometry configuration and/or collision
Determine priority；5th determining module, for determine to abandon from the multiple CSI-RS according to the priority one or many
Individual CSI-RS value；6th coding module, for the discarding will to be removed in each CSI-RS RI in the multiple CSI-RS
RI after remaining RI carry out combined coding or the corresponding RI of feedback priority level highest CSI.
Preferably, the feedback module, for the combined coding to be fed back into the base station in same subframe.
By the present invention, the bit number that can be supported using terminal according to combined coding, code book limitation cluster or carrying are more
The individual CSI-RS overlapping RI on multiple CSI-RS of resource carries out combined coding, and realize reduces letter using combined coding mode
The bit number of channel state information feedback, expense compares when solving the channel condition information of multiple CSI-RSs in correlation technique
Big the problem of, the bit number of information feedback is reduced, born it is achieved thereby that lowering information feedback signaling
Lotus.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this hair
Bright schematic description and description is used to explain the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the flow chart of the feedback method of channel condition information according to embodiments of the present invention；
Fig. 2 is the structured flowchart of the feedback device of channel condition information according to embodiments of the present invention；And
Fig. 3 is the preferred structured flowchart of the feedback device of channel condition information according to embodiments of the present invention.
Embodiment
Describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that not conflicting
In the case of, the feature in embodiment and embodiment in the application can be mutually combined.
A kind of flow of the feedback method of channel condition information is present embodiments provided, Fig. 1 is according to embodiments of the present invention
Channel condition information feedback method flow chart, as shown in figure 1, should steps S102 be included to step S104.
Step S102：Terminal receives the letter for the channel condition information for indicating the multiple CSI-RS of terminal feedback that base station is sent
Order；
Step S104：Terminal carries out combined coding according to one below or its combination to multiple CSI-RS RI, and feeds back
Give the base station：
The same interferometry resource of the whether corresponding configurations of multiple CSI-RS；
The bit number that the RI combined codings got are supported；
The code book limitation cluster of the base station configuration got；
The resource for carrying the plurality of CSI-RS is overlapping.
By above-mentioned steps, whether bit number that terminal can be supported according to combined coding, multiple CSI-RS are corresponding to be matched somebody with somebody
Put the overlapping RI on multiple CSI-RS of resource of same interferometry resource, code book limitation cluster or the plurality of CSI-RS of carrying
Combined coding is carried out, realize reduces the bit number of information feedback using combined coding mode, solves related skill
In art during the channel condition information of multiple CSI-RSs expense than it is larger the problem of, reduce the ratio of information feedback
Special number, it is achieved thereby that lowering information feedback signaling traffic load.
Carry out the mode of combined coding corresponding to the bit number supported according to the RI combined codings that get, terminal can be with
In the following way：The bit number got is distributed equally terminal on the plurality of CSI-RS, according to the average mark
The result matched somebody with somebody determines the maximum RI bit numbers supported or RI maximums of each CSI-RS in the plurality of CSI-RS, and many to this
Individual CSI-RS RI carries out combined coding.This preferred embodiment realizes the bit number pair that the RI combined codings got are supported
Multiple CSI-RS RI carries out combined coding, reduces the bit number of information feedback.
Corresponding to the mode that combined coding is carried out according to the code book limitation cluster of the base station configuration got, terminal can be adopted
Use following manner：The code book limitation cluster that the terminal is configured according to the base station determines each CSI-RS in the plurality of CSI-RS
The RI of support bit number or RI maximum, and combined coding is carried out to the plurality of CSI-RS RI；Terminal will be obtained
To base station configuration a code book limitation cluster the maximum number of plies be distributed equally on the plurality of CSI-RS, determine the plurality of
Each CSI-RS RI bit number or RI maximum in CSI-RS, and the RI of the plurality of CSI-RS support is carried out
Combined coding；Code book limitation cluster of the terminal according to corresponding to each CSI-RS in the plurality of CSI-RS determines that each CSI-RS is supported
RI bit number or RI maximum, and combined coding is carried out to the plurality of CSI-RS RI.
Corresponding to the overlapping mode for carrying out combined coding of the resource for carrying the plurality of CSI-RS, terminal can use such as lower section
Formula：Terminal determines to carry the plurality of CSI- according to each CSI-RS RI cycle in the plurality of CSI-RS and sub-frame offset information
RS physical resource is overlapping；The terminal judges that the plurality of CSI-RS RI carries out the bit number of combined coding less than RI combined codings
The bit number supported；If it is judged that being yes, each CSI-RS RI is combined in the plurality of CSI-RS of the terminal-pair
Coding；If it is judged that being no, the order that the terminal is configured according to the plurality of CSI-RS configuration sequence, correspondence interferometry
And/or the size of each RI values determines priority in the plurality of CSI of collision, and according to priority determination from the plurality of
The one or more CSI-RS abandoned in CSI-RS RI, will remove the discarding in the plurality of CSI-RS in each CSI-RS RI
RI after remaining RI carry out combined coding or the corresponding RI of feedback priority level highest CSI.
Preferably, the combined coding is fed back into the base station in same subframe.
Preferably, the bit number that RI combined codings are supported be base station be sent to the terminal or the bit number be base station and
What the terminal was pre-set.
It should be noted that can be in such as one group computer executable instructions the step of the flow of accompanying drawing is illustrated
Performed in computer system, and, although logical order is shown in flow charts, but in some cases, can be with not
The order being same as herein performs shown or described step.
In another embodiment, a kind of feedback device software of channel condition information is additionally provided, the software is used for
Technical scheme described in execution above-described embodiment and preferred embodiment.
In another embodiment, a kind of storage medium is additionally provided, be stored with above-mentioned channel shape in the storage medium
The feedback device software of state information, the storage medium includes but is not limited to：CD, floppy disk, hard disk, scratch pad memory etc..
The embodiment of the present invention additionally provides a kind of feedback device of channel condition information, the feedback dress of the channel condition information
Put and can be used for the feedback method and preferred embodiment of realizing above-mentioned channel condition information, carried out explanation, no longer
Repeat, the module being related in the feedback device of the channel condition information is illustrated below.As used below, term
" module " can realize the combination of the software and/or hardware of predetermined function.Although the system and method described by following examples
Preferably realized with software, but hardware, or the realization of the combination of software and hardware is also that may and be contemplated.
Fig. 2 is the structured flowchart of the feedback device of channel condition information according to embodiments of the present invention, as shown in Fig. 2 should
Device includes：Said structure is described in detail below for receiving module 22, the first coding module 24, feedback module 26.
Receiving module 22, for receiving the channel condition information for indicating the multiple CSI-RS of terminal feedback that base station is sent
Signaling；
First coding module 24, is connected to receiving module 22, for according to one below or its combination to multiple CSI-RS
RI carry out combined coding：
The same interferometry resource of the whether corresponding configurations of multiple CSI-RS；
The bit number that the RI combined codings got are supported；
The code book limitation cluster of the base station configuration got；
The resource for carrying the plurality of CSI-RS is overlapping；
Feedback module 26, is connected to the first coding module 24, and the combined coding for the first coding module 24 to be obtained is anti-
Feed the base station.
Preferably, the first coding module 24 is used for corresponding to being configured to multiple CSI-RS of same interferometry resource
RI carries out combined coding.
Preferably, feedback module 26, for the combined coding to be fed back into the base station in same subframe.
Fig. 3 is the preferred structured flowchart of the feedback device of channel condition information according to embodiments of the present invention, such as Fig. 3 institutes
Show, the first coding module 24 includes：Including：First distribute module 241, the first determining module 242, the second coding module 243；Place
Manage module 244, the 3rd coding module 245, the second distribute module 246, the second determining module 247, the 3rd coding module 248；The
Two determining modules 247, the 4th coding module 240；3rd determining module 31, judge module 32, the 5th coding module 33, the 4th is true
Said structure is described in detail below for cover half block 34, the 5th determining module 35, the 6th coding module 36.
First coding module 24 includes：First distribute module 241, for by the bit number got in the plurality of CSI-
It is distributed equally on RS；First determining module 242, it is every in the plurality of CSI-RS for being determined according to the result of the mean allocation
RI and RI maximum that individual CSI-RS maximums are supported；Second coding module 243, for the plurality of CSI-RS RI to be joined
Compile in collaboration with code.
First coding module 24 includes：Processing module 244, the code book limitation cluster for being configured according to the base station is determined
Each CSI-RS RI bit number or RI maximum in the plurality of CSI-RS；3rd coding module 245, for this
Multiple CSI-RS RI carries out combined coding；Or
Second distribute module 246, the maximum number of plies that a code book for the base station got to be configured limits cluster exists
It is distributed equally on the plurality of CSI-RS；Second determining module 247, for determining each CSI-RS in the plurality of CSI-RS
RI bit number or RI maximum；3rd coding module 248, joint volume is carried out for the RI to the plurality of CSI-RS
Code；Or
Second determining module 247, it is true for the code book limitation cluster according to corresponding to each CSI-RS in the plurality of CSI-RS
The bit number or RI maximum for the RI that fixed each CSI-RS maximums are supported；4th coding module 240, for the plurality of
CSI-RS RI carries out combined coding.
First coding module 24 includes：3rd determining module 31, for according to each CSI-RS in the plurality of CSI-RS
RI cycle and sub-frame offset information determine that the plurality of CSI-RS of carrying physical resource is overlapping；
Judge module 32, is connected to the 3rd determining module 31, for judging that the plurality of CSI-RS RI carries out combined coding
Bit number be less than the bit number supported of RI combined codings；
5th coding module 33, is connected to judge module 32, the judged result for the judge module in judge module 32
During to be, combined coding is carried out to the RI of each CSI-RS in the plurality of CSI-RS；
4th determining module 34, is connected to judge module 32, the judged result for the judge module in judge module 32
For it is no when, according to the plurality of CSI-RS configuration sequence, correspondence interferometry configure order and/or collision the plurality of CSI-
The sizes of each RI values determines priority in RS；5th determining module 35, is connected to the 4th determining module 34, for according to
The priority that four determining modules 34 are determined determines the one or more CSI-RS abandoned from the plurality of CSI-RS value；6th compiles
Code module 36, is connected to the 5th determining module 35, for will remove the discarding in each CSI-RS RI in the plurality of CSI-RS
RI after remaining RI carry out combined coding or the corresponding RI of feedback priority level highest CSI.
Illustrated below in conjunction with preferred embodiment, preferred embodiment below combines above-described embodiment and is preferable to carry out
Mode.
Preferred embodiment one
This preferred embodiment provides a kind of feedback method of radio channel status information, and this method includes：Base station side is led to
High-rise signal deployment end side is crossed measure and feed back multiple CSI-RSs, end side RI according to consistent as defined in limit with or
The code book configured according to base station side limits cluster to carry out combined coding and anti-to the corresponding RI of one or more CSI-RS
Feedback.
Present embodiments provide following manner and carry out combined coding：
Mode one：End side RI according to as defined in consistent limitation is corresponding to feed back one or more CSI-RS
RI combined coding is indicated.
In this approach, when high level one CSI-RS of configuration is used for channel measurement, end side assume that configuration
The RI maximums of CSI-RS support the maximum of code book cluster limitation.As high level configuration NS (NS>1) individual CSI-RS is used for
During channel measurement, end side assume that the RI maximums of each CSI-RS of configuration support N1 (N1>0) value.Wherein N1
Value can directly be provided consistent, or end side is notified by high-level signaling or code book limitation cluster.
Mode two：End side limits cluster to feed back the corresponding RI of one or more CSI-RS joint according to code book
Coding is indicated.
In this approach, as high level configuration NS (NS>0) when CSI-RS is used for channel measurement, base station side Pei Zhi Give are whole
The RI combined coding bits limitation signaling limitation maximum RI combined codings bit of side one is N2 (N2>0), end side is according to joint
Coded-bit limitation signaling N2 assumes that the RI of each CSI-RS is maximum in the upper mean allocation of Ns CSI-RS
The value of support.
Preferably, end side limits cluster according to code book and referred to feed back the corresponding RI of multiple CSI-RSs combined coding
Show.As high level configuration NS (NS>0) when CSI-RS is used for channel measurement, one of mode can be implemented as follows：
Embodiment one：Base station side Pei Zhi Give end sides one code book cluster limitation signaling, end side limits cluster according to code book
The maximum number of plies of configuration come assume each CSI-RS RI maximum support value.
Embodiment two：Base station side Pei Zhi Give end sides one code book cluster limitation signaling, end side limits cluster according to code book
The maximum number of plies of configuration assumes the value that the RI maximums of each CSI-RS are supported in the upper average of Ns CSI-RS.
Embodiment three：Base station side Pei Zhi Give end side NS (NS>0) individual code book cluster limitation signaling, end side is according to each
The corresponding code book of CSI-RS limits the maximum number of plies of cluster configuration come the value for the RI maximum supports for assuming each CSI-RS.
Preferably, end side can also limit cluster to feed back the corresponding RI's of one or more CSI-RSs according to code book
Combined coding is indicated.Consistent regulation is when high level one CSI-RS of configuration is used for channel measurement, base station side Pei Zhi Give terminals
The code book cluster limitation signaling of side one, end side limits the maximum number of plies of cluster configuration according to code book to assume to feed back CSI-RS
The value that RI maximums are supported.As high level configuration NS (NS>0) when individual CSI-RS is used for channel measurement, base station side Pei Zhi Give terminals
Side NS (NS>0) individual code book cluster limitation signaling, the maximum that end side is configured according to the corresponding code book limitation cluster of each CSI-RS
The number of plies come assume each CSI-RS RI maximum support value.
Preferably, in order to save feedback resources, end side carries out combined coding same to the RI of multiple CSI-RSs
Fed back in individual subframe.
Mode three：End side judges to match somebody with somebody according to the RI of each CSI-RS of configuration cycle and sub-frame offset information
The feedback RI put subframe, if the RI feedbacks of two or three CSI-RSs collide, then in corresponding subframe
Upper progress combined coding feedback.
Preferably, end side judges to match somebody with somebody according to the RI of each CSI-RS of configuration cycle and sub-frame offset information
The feedback RI put subframe, if the RI feedbacks of multiple CSI-RSs collide, then if entered in corresponding subframe
Row combined coding feedback is not above the maximum RI bit numbers of defined or high-rise configuration, then feed back the multiple of collision
CSI-RS RI combined coding is indicated.
Than preferably, if carrying out the maximum RI bit numbers that combined coding feedback exceedes defined or high-rise configuration,
So according to CSI-RS configuration sequence and/or RI feed back order value come determine abandon CSI-RS RI.(power 11)
By this preferred embodiment, can reduce uplink feedback expense while so that uplink feedback it is simple in rule
Change, unitize, reduce the collision probability of uplink channel status feedback of the information.
Preferred embodiment two
This preferred embodiment provides a kind of feedback method of radio channel status information, in this embodiment it is assumed that UE1
For R11 or the user of more highest version, base station side is measured by high-level signaling configurating terminal side and feeds back multiple CSI-RSs,
UE1 RI according to as defined in consistent limitation indicates to feed back the corresponding RI of one or more CSI-RS combined coding.
Consistent regulation is when high level one CSI-RS of configuration is used for channel measurement, and UE1 assume that the CSI-RS of configuration
RI maximums support the value of code book cluster limitation.Then UE1 feeds back the RI Give base station sides of correspondence CSI-RS.When base station side is configured eventually
When the CSI-RS of side two is used for channel measurement, limit to limit by the RI of consistent defined RI limitations or high-rise configuration
UE1 processed is 2 to the maximum for the RI values of CSI-RS1 resources, and the RI values for CSI-RS2 resources are 2 to the maximum, at this moment two CSI-RS
The bit of resource joint coding is 2 bits.When the CSI-RS of base station side configurating terminal side three is used for channel measurement, pass through
The RI of RI limitations or high-rise configuration as defined in consistent limits is 2 to the maximum to limit UE1 for the RI values of CSI-RS1 resources, right
It is 2 to the maximum in the RI values of CSI-RS2 resources, the RI values for CSI-RS3 resources are 2 to the maximum, at this moment three CSI-RS connection
The bit for compiling in collaboration with code is 3 bits.
Preferred embodiment three
This preferred embodiment provides a kind of feedback method of radio channel status information, in this embodiment it is assumed that UE1
For R11 or the user of more highest version, base station side is measured by high-level signaling configurating terminal side and feeds back multiple CSI-RSs,
Whether UE1 is configured to same interferometry resource according to multiple CSI-RSs to judge to join which CSI-RS
Compile in collaboration with code.Such as CSI-RS 1 and the configuration a set of interferometry resource of identical of CSI-RS 2, then UE1 is for CSI-
The RI that RS resources 1 and CSI-RS 2 are configured carries out combined coding.UE1 RI according to as defined in consistent limitation feeds back two
The corresponding RI of CSI-RS combined coding is indicated.Consistent regulation is used for channel measurement when high-rise one CSI-RS of configuration
When, UE1 assume that the RI maximums of the CSI-RS of configuration support the value of code book cluster limitation.Then UE1 feeds back correspondence CSI-
The RI Give base station sides of RS resources.When the CSI-RS of base station side configurating terminal side two is used for channel measurement, by unanimously advising
Fixed RI limitations or the RI limitations of high-rise configuration are 2 to the maximum to limit UE1 for the RI values of CSI-RS1 resources, for CSI-
The RI values of RS2 resources are 2 to the maximum, and at this moment the bit of two CSI-RS combined codings is 2 bits.When base station side configurating terminal
When the CSI-RS of side three is used for channel measurement, limit to limit by the RI of consistent defined RI limitations or high-rise configuration
UE1 is 2 to the maximum for the RI values of CSI-RS1 resources, and the RI values for CSI-RS2 resources are 2 to the maximum, for CSI-RS3 resources
RI values be 2 to the maximum, at this moment the bit of three CSI-RS combined codings be 3 bits.
Preferred embodiment four
This preferred embodiment provides a kind of feedback method of radio channel status information, in this embodiment it is assumed that UE1
For R11 or the user of more highest version, base station side is measured by high-level signaling configurating terminal side and feeds back multiple CSI-RSs,
Whether UE1 is configured to same interferometry resource according to multiple CSI-RSs to judge to join which CSI-RS
Compile in collaboration with code.Such as CSI-RS 1 and the configuration a set of interferometry resource of identical of CSI-RS 2, then UE1 is for CSI-
The RI that RS resources 1 and CSI-RS 2 are configured carries out combined coding.UE1 RI according to as defined in consistent limitation feeds back two
The corresponding RI of CSI-RS combined coding is indicated.Consistent regulation is used for channel measurement when high-rise one CSI-RS of configuration
When, UE1 assume that the RI maximums of the CSI-RS of configuration support the value of code book cluster limitation.Then UE1 feeds back correspondence CSI-
The RI Give base station sides of RS resources.When the CSI-RS of base station side configurating terminal side two is used for channel measurement, by unanimously advising
Fixed RI limitations or the RI limitations of high-rise configuration are 2 or high specific to the maximum to limit UE1 for the RI values of CSI-RS1 resources
Specially for 1 bit, the RI values for CSI-RS2 resources are 2 to the maximum, and at this moment the bit of two CSI-RS combined codings is 2 ratios
It is special.When the CSI-RS of base station side configurating terminal side three is used for channel measurement, pass through consistent defined RI limitations or high
The RI limitations of layer configuration are 2 to the maximum to limit UE1 for the RI values of CSI-RS1 resources, and the RI values for CSI-RS2 resources are maximum
For 2, the RI values for CSI-RS3 resources are 2 to the maximum, and at this moment the bit of three CSI-RS combined codings is 3 bits.
Preferred embodiment five
This preferred embodiment provides a kind of feedback method of radio channel status information, in this embodiment it is assumed that UE1
For R11 or the user of more highest version, base station side is measured by high-level signaling configurating terminal side and feeds back multiple CSI-RSs,
UE1 RI according to as defined in consistent limitation indicates to feed back the corresponding RI of one or more CSI-RS combined coding.
Consistent regulation is when high level one CSI-RS of configuration is used for channel measurement, and UE1 assume that the CSI-RS of configuration
RI maximums support the value of code book cluster limitation.Then UE1 feeds back the RI Give base station sides of correspondence CSI-RS.When base station side is configured eventually
When the CSI-RS of side two is used for channel measurement, each of configuration is determined by the code book limitation cluster of high level configuration
The bit number of CSI-RS RI combined codings.When base station side two CSI-RSs of configuration UE1 are used for channel measurement, lead to
The RI for crossing each CSI-RS of code book limitation cluster configuration feedback is 2 to the maximum, and at this moment UE1 feeds back two CSI-RS RI connection
The bit number for compiling in collaboration with code is 2.When base station side tri- CSI-RSs of configuration UE1 are used for channel measurement, cluster is limited by code book
The RI for configuring each CSI-RS of feedback is 2 to the maximum, and at this moment UE1 feeds back the bit of three CSI-RS RI combined codings
Number is 3.
Preferred embodiment six
This preferred embodiment provides a kind of feedback method of radio channel status information, in this embodiment it is assumed that UE1
For R11 or the user of more highest version, base station side is measured by high-level signaling configurating terminal side and feeds back multiple CSI-RSs,
UE1 RI according to as defined in consistent limitation indicates to feed back the corresponding RI of one or more CSI-RS combined coding.
Consistent regulation is when high level one CSI-RS of configuration is used for channel measurement, and UE1 assume that the CSI-RS of configuration
RI supports the value of code book cluster limitation.Then UE1 feeds back the RI Give base station sides of correspondence CSI-RS.When base station side configurating terminal side
When two CSI-RSs are used for channel measurement, limit cluster to determine each CSI- of configuration by a code book of high level configuration
The bit number of RS resource RI combined codings.When base station side two CSI-RSs of configuration UE1 are used for channel measurement, pass through code
The RI maximum number bits of each CSI-RS of this limitation cluster configuration feedback are 1, for example, can only be passed using RI=2 and RI=4
Defeated, the bit number that at this moment UE1 feeds back two CSI-RS RI combined codings is 2.When tri- CSI-RS moneys of base station side configuration UE1
When source is used for channel measurement, the RI maximum number bits that each CSI-RS of cluster configuration feedback is limited by code book are 1, at this moment
The bit number that UE1 feeds back three CSI-RS RI combined codings is 3.
Preferred embodiment seven
This preferred embodiment provides a kind of feedback method of radio channel status information, in this embodiment it is assumed that UE1
For R11 or the user of more highest version, base station side is measured by high-level signaling configurating terminal side and feeds back multiple CSI-RSs,
UE1 RI according to as defined in consistent limitation indicates to feed back the corresponding RI of one or more CSI-RS combined coding.
Consistent regulation is when high level one CSI-RS of configuration is used for channel measurement, and UE1 assume that the CSI-RS of configuration
RI maximums support the value of code book cluster limitation.Then UE1 feeds back the RI Give base station sides of correspondence CSI-RS.When base station side is configured eventually
When the CSI-RS of side two is used for channel measurement, each of configuration is determined by two code books limitation cluster of high level configuration
The bit number of CSI-RS RI combined codings.When base station side two CSI-RSs of configuration UE1 are used for channel measurement, lead to
The RI for crossing the CSI-RS1 resources of code book limitation cluster configuration feedback is 2, CSI-RS2 RI to the maximum and is 4 to the maximum, at this moment UE1 feedbacks two
The bit number of individual CSI-RS RI combined codings is 3.When base station side tri- CSI-RSs of configuration UE1 are used for channel measurement
When, the RI that the CSI-RS1 resources of cluster configuration feedback are limited by the corresponding code book of each CSI-RS is 4, CSI-RS2 to the maximum
The RI that the RI of resource is 2, CSI-RS3 resources to the maximum is 2 to the maximum, and at this moment UE1 feeds back three CSI-RS RI combined codings
Bit number is 3.
Preferred embodiment eight
This preferred embodiment provides a kind of feedback method of radio channel status information, in this embodiment it is assumed that UE1
For R11 or the user of more highest version, base station side is measured by high-level signaling configurating terminal side and feeds back multiple CSI-RSs,
UE1 RI according to as defined in consistent limitation indicates to feed back the corresponding RI of one or more CSI-RS combined coding.
Consistent regulation is when high level one CSI-RS of configuration is used for channel measurement, and UE1 assume that the CSI-RS of configuration
RI maximums support the value of code book cluster limitation.Then UE1 feeds back the RI Give base station sides of correspondence CSI-RS.When base station side is configured eventually
When the CSI-RS of side two is used for channel measurement, each of configuration is determined by two code books limitation cluster of high level configuration
The bit number of CSI-RS RI combined codings.When base station side two CSI-RSs of configuration UE1 are used for channel measurement, lead to
The RI for crossing the CSI-RS1 resources of code book limitation cluster configuration feedback is 8, CSI-RS2 RI to the maximum and is 8 to the maximum, at this moment UE1 feedbacks two
The bit number of individual CSI-RS RI combined codings is 4.When base station side tri- CSI-RSs of configuration UE1 are used for channel measurement
When, the RI that the CSI-RS1 resources of cluster configuration feedback are limited by the corresponding code book of each CSI-RS is 8, CSI-RS2 to the maximum
The RI that the RI of resource is 8, CSI-RS3 resources to the maximum is 8 to the maximum, and at this moment UE1 feeds back three CSI-RS RI combined codings
Bit number is 5.
Preferred embodiment nine
This preferred embodiment provides a kind of feedback method of radio channel status information, in this embodiment it is assumed that UE1
For R11 or the user of more highest version, base station side is measured by high-level signaling configurating terminal side and feeds back multiple CSI-RSs,
UE1 RI according to as defined in consistent limitation indicates to feed back the corresponding RI of one or more CSI-RS combined coding.
Consistent regulation is when high level one CSI-RS of configuration is used for channel measurement, and UE1 assume that the CSI-RS of configuration
RI maximums support the value of code book cluster limitation.Then UE1 feeds back the RI Give base station sides of correspondence CSI-RS.When base station side is configured eventually
When the CSI-RS of side two is used for channel measurement, each of configuration is determined by the code book limitation cluster of high level configuration
The bit number of the bit number of CSI-RS RI combined codings no more than.When two CSI-RS moneys of base station side configuration UE1
When source is used for channel measurement, the RI that the CSI-RS1 resources of cluster configuration feedback are limited by code book is 8 to the maximum, at this moment requires that UE1 is anti-
The RI combined codings number of feedback feeds back the bit number of two CSI-RS RI combined codings no more than 3, UE1 can for 3, UE1
The allocation order of 3 bits is determined with the order configured according to CSI-RS, the RI for for example distributing CSI-RS1 resources 1 is to the maximum
The RI of 4, CSI-RS2 resources is 4 to the maximum.When base station side tri- CSI-RSs of configuration UE1 are used for channel measurement, pass through code book
The RI of the CSI-RS1 resources of limitation cluster configuration feedback is 8 to the maximum, and at this moment requiring the RI combined codings number of UE1 feedbacks can not surpass
3 are crossed, this UE1 determines the RI of each CSI-RS according to the high-rise notification sequences of CSI-RS, for example：CSI-RS1 resources
The RI that RI is 3, CSI-RS2 resources to the maximum is 3 to the maximum, and at this moment UE1 feeds back the bit number of three CSI-RS RI combined codings
For 2, then the combined coding RI of UE1 feedbacks bit number is 3.Wherein selecting each CSI-RS RI formula can be：
The RI values of preceding N-1 CSI-RS areThe RI values of n-th CSI-RS areWherein n is the RI of limitation
Combined coding bit number.
Preferred embodiment ten
This preferred embodiment provides a kind of feedback method of radio channel status information, in this embodiment it is assumed that UE1
For R11 or the user of more highest version, base station side is measured by high-level signaling configurating terminal side and feeds back multiple CSI-RSs,
UE1 RI according to as defined in consistent limitation indicates to feed back the corresponding RI of one or more CSI-RS combined coding.
Consistent regulation is when high level one CSI-RS of configuration is used for channel measurement, and UE1 assume that the CSI-RS of configuration
RI maximums support the value of code book cluster limitation.Then UE1 feeds back the RI Give base station sides of correspondence CSI-RS.When base station side is configured eventually
The CSI-RS of side two be used for channel measurement when, by high level configuration a RI combined coding bit number limit come
Notify the bit number of UE RI combined codings no more than.When base station side two CSI-RSs of configuration UE1 are used for channel measurement
When, indicate that the bit number of combined coding is 3 to the maximum by the bit number limitation of RI combined codings, at this moment require that UE1 feeds back
RI combined codings number feed back the bit number of two CSI-RS RI combined codings no more than 3, UE1 can be with for 3, UE1
The order configured according to CSI-RS determines the allocation order of 3 bits, and the RI for for example distributing CSI-RS1 resources 1 is 4 to the maximum,
The RI of CSI-RS2 resources is 4 to the maximum.When base station side tri- CSI-RSs of configuration UE1 are used for channel measurement, combined by RI
The bit number limitation of coding indicates that the bit number of combined coding is 3 to the maximum, at this moment requires the RI combined coding numbers of UE1 feedbacks
Mesh is no more than 3, and this UE1 determines the RI of each CSI-RS according to the high-rise notification sequences of CSI-RS, for example：CSI-
The RI that the RI of RS1 resources is 3, CSI-RS2 resources to the maximum is 3 to the maximum, and at this moment UE1 feeds back three CSI-RS RI combined codings
Bit number be 2, then UE1 feedback combined coding RI bit number be 3.Wherein select each CSI-RS RI formula
Can be：The RI values of preceding N-1 CSI-RS areThe RI values of n-th CSI-RS areWherein n is
The RI combined coding bit numbers of limitation.
Preferred embodiment 11
This preferred embodiment provides a kind of feedback method of radio channel status information, in this embodiment it is assumed that UE1
For R11 or the user of more highest version, base station side is measured by high-level signaling configurating terminal side and feeds back multiple CSI-RSs,
UE1 RI according to as defined in consistent limitation indicates to feed back the corresponding RI of one or more CSI-RS combined coding.
Consistent regulation is when high level one CSI-RS of configuration is used for channel measurement, and UE1 assume that the CSI-RS of configuration
RI maximums support the value of code book cluster limitation.Then UE1 feeds back the RI Give base station sides of correspondence CSI-RS.When base station side is configured eventually
When the CSI-RS of side two is used for channel measurement, and the cycle of two CSI-RSs and sub-frame offset configuration cause it is each
Collided from RI feedback in some subframes, at this moment RIs of the UE1 for two CSI-RSs in collision subframe is carried out
Combined coding feeds back.
Preferred embodiment 12
This preferred embodiment provides a kind of feedback method of radio channel status information, in this embodiment it is assumed that UE1
For R11 or the user of more highest version, base station side is measured by high-level signaling configurating terminal side and feeds back multiple CSI-RSs,
UE1 RI according to as defined in consistent limitation indicates to feed back the corresponding RI of one or more CSI-RS combined coding.
Consistent regulation is when high level one CSI-RS of configuration is used for channel measurement, and UE1 assume that the CSI-RS of configuration
RI maximums support the value of code book cluster limitation.Then UE1 feeds back the RI Give base station sides of correspondence CSI-RS.When base station side is configured eventually
When the CSI-RS of side two is used for channel measurement, and the cycle of two CSI-RSs and sub-frame offset configuration cause it is each
Collided from RI feedback in some subframes, if at this moment UE1 judges that the RI of two CSI-RSs of combined coding is being touched
Hit to feed back in subframe and whether exceeded the maximum allowable bit number that RI subframes are fed back, such as 5 bits, if be not above, that
The RI of two CSI-RSs is fed back in the way of combined coding, otherwise according to abandon CSI-RS configuration sequences rearward or
The RI of the relatively low CSI-RS of person's RI values.
By above-described embodiment there is provided a kind of feedback method of channel condition information and device, by realizing reduction
While uplink feedback expense so that simple in ruleization of uplink feedback, unitize, reduce uplink channel status feedback of the information
Collision probability.Have it should be noted that these technique effects are not above-mentioned all embodiments, some technologies
Effect is that some preferred embodiments could be obtained.
Obviously, those skilled in the art should be understood that above-mentioned each module of the invention or each step can be with general
Computing device realize that they can be concentrated on single computing device, or be distributed in multiple computing devices and constituted
Network on, alternatively, the program code that they can be can perform with computing device be realized, so as to being stored in
Performed in storage device by computing device, they are either fabricated to each integrated circuit modules respectively or by them
Multiple modules or step single integrated circuit module is fabricated to realize.So, the present invention is not restricted to any specific hard
Part and software are combined.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (11)
1. a kind of feedback method of channel condition information, it is characterised in that including：
Terminal receives the channel status for indicating the multiple channel state information reference signals CSI-RS of terminal feedback that base station is sent
The signaling of information；
The terminal is combined according to one below or its combination to multiple channel state information reference signals CSI-RS RI
Coding, and feed back to the base station：
The same interferometry resource of the whether corresponding configurations of the multiple CSI-RS；
The bit number that the rank information RI combined codings got are supported；
The code book limitation cluster of the base station configuration got；
The resource for carrying the multiple CSI-RS is overlapping；
Wherein, the terminal determines to combine multiple CSI-RS RI according to the resource for carrying the multiple CSI-RS is overlapping
Coding includes：
The terminal determines carrying institute according to each CSI-RS RI cycle in the multiple CSI-RS and sub-frame offset information
The physical resource for stating multiple CSI-RS is overlapping；
The terminal judges that the bit number of the multiple CSI-RS RI progress combined codings is less than what RI combined codings were supported
Bit number；
If it is judged that being yes, each CSI-RS RI carries out combined coding in the multiple CSI-RS of terminal-pair；
If it is judged that being no, the terminal is configured according to the multiple CSI-RS configuration sequence, correspondence interferometry
The size of each RI values determines priority in order and/or the multiple CSI of collision, and according to priority determination from
The one or more CSI-RS abandoned in the multiple CSI-RS RI, by each CSI-RS RI in the multiple CSI-RS
Remove remaining RI after the RI of the discarding and carry out combined coding or the corresponding RI of feedback priority level highest CSI.
2. according to the method described in claim 1, it is characterised in that the terminal is matched somebody with somebody according to whether the multiple CSI-RS is corresponding
Put same interferometry resource and determine that carrying out combined coding to multiple CSI-RS RI includes：
The corresponding RI of multiple CSI-RS that the terminal-pair is configured to same interferometry resource carry out combined coding.
3. according to the method described in claim 1, it is characterised in that the order that the terminal is configured according to the base station got
The bit number that information RI combined codings are supported determines that carrying out combined coding to multiple CSI-RS RI includes：
The bit number got is distributed equally the terminal on the multiple CSI-RS, according to the average mark
The result matched somebody with somebody determines the maximum RI bit numbers supported or RI maximum of each CSI-RS in the multiple CSI-RS, and
Combined coding is carried out to the multiple CSI-RS RI.
4. according to the method described in claim 1, it is characterised in that the code that the terminal is configured according to the base station got
This limitation cluster determines that carrying out combined coding to multiple CSI-RS RI includes：
The code book limitation cluster that the terminal is configured according to the base station determines that each CSI-RS is most in the multiple CSI-RS
The RI supported greatly bit number or RI maximum, and combined coding is carried out to the multiple CSI-RS RI；
The code book that the terminal configures the base station got limits the maximum number of plies of cluster in the multiple CSI-RS
On be distributed equally, determine the maximum RI supported of each CSI-RS in the multiple CSI-RS bit number or RI
Maximum, and combined coding is carried out to the multiple CSI-RS RI；
Code book limitation cluster of the terminal according to corresponding to each CSI-RS in the multiple CSI-RS determines each CSI-RS most
The RI supported greatly bit number or RI maximum, and combined coding is carried out to the multiple CSI-RS RI.
5. method according to any one of claim 1 to 4, it is characterised in that the terminal is anti-by the combined coding
The base station of feeding includes：
The combined coding is fed back to the base station by the terminal in same subframe.
6. method according to any one of claim 1 to 4, the bit number that the RI combined codings are supported is sent out for base station
It is that base station and the terminal are pre-set to give the terminal or the bit number.
7. a kind of feedback device of channel condition information, applied to terminal, it is characterised in that including：
Receiving module, for receiving the multiple channel state information reference signals CSI-RS's of the instruction of base station transmission terminal feedback
The signaling of channel condition information；
First coding module, for according to one below or its combination to multiple channel state information reference signals CSI-RS RI
Carry out combined coding：
The same interferometry resource of the whether corresponding configurations of the multiple CSI-RS；
The bit number that the rank information RI combined codings got are supported；
The code book limitation cluster of the base station configuration got；
The resource for carrying the multiple CSI-RS is overlapping；
Feedback module, for the combined coding to be fed back into the base station；
Wherein, first coding module includes：
3rd determining module, for true according to each CSI-RS RI cycle and sub-frame offset information in the multiple CSI-RS
Surely the physical resource for carrying the multiple CSI-RS is overlapping；
Judge module, for judging that the multiple CSI-RS bit number of RI progress combined codings is propped up less than RI combined codings
The bit number held；
5th coding module, for when the judged result of judge module is to be, to each CSI-RS in the multiple CSI-RS
RI carry out combined coding；
4th determining module, for when the judged result of the judge module is no, according to the multiple CSI-RS configuration
Sequentially, the size of each RI values is excellent to determine in correspondence interferometry is configured order and/or the multiple CSI-RS of collision
First level；5th determining module, for according to the priority determine abandoned from the multiple CSI-RS it is one or more
CSI-RS value；6th coding module, for the discarding will to be removed in each CSI-RS RI in the multiple CSI-RS
Remaining RI carries out combined coding or the corresponding RI of feedback priority level highest CSI after RI.
8. device according to claim 7, it is characterised in that first coding module is used for same dry to being configured to
The corresponding RI of multiple CSI-RS for disturbing measurement resource carry out combined coding.
9. device according to claim 7, it is characterised in that first coding module includes：
First distribute module, for the bit number got to be distributed equally on the multiple CSI-RS；First
Determining module, for determining each CSI-RS maximum support in the multiple CSI-RS according to the result of the mean allocation
The maximum of RI bit number or the RI；Second coding module, for the multiple CSI-RS RI to be combined
Coding.
10. device according to claim 7, it is characterised in that first coding module includes：
Processing module, the code book limitation cluster for being configured according to the base station determines each CSI- in the multiple CSI-RS
The bit number or RI maximum for the RI that RS maximums are supported；3rd coding module, for the RI to the multiple CSI-RS
Carry out combined coding；
Second distribute module a, code book for the base station got to be configured limits the maximum number of plies of cluster described many
It is distributed equally on individual CSI-RS；Second determining module, for determining each CSI-RS maximums branch in the multiple CSI-RS
The RI held bit number or RI maximum；3rd coding module, combines for the RI to the multiple CSI-RS
Coding；
Second determining module, the code book limitation cluster being additionally operable to according to corresponding to each CSI-RS in the multiple CSI-RS is true
The bit number or RI maximum for the RI that fixed each CSI-RS maximums are supported；4th coding module, for the multiple
CSI-RS RI carries out combined coding.
11. the device according to any one of claim 7 to 10, it is characterised in that the feedback module, for by described in
Combined coding feeds back to the base station in same subframe.
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| CN106612132B (en) * | 2015-10-16 | 2021-05-18 | 电信科学技术研究院 | Method and device for transmitting channel state information |
| CN107689843A (en) * | 2016-08-05 | 2018-02-13 | 北京信威通信技术股份有限公司 | Feedback method and device |
| CN107733502A (en) * | 2016-08-11 | 2018-02-23 | 株式会社Ntt都科摩 | Reference signal is sent and feedback method, base station and mobile station |
| WO2018201456A1 (en) * | 2017-05-05 | 2018-11-08 | Qualcomm Incorporated | Partial band configuration for channel state information |
| WO2018232751A1 (en) | 2017-06-23 | 2018-12-27 | Oppo广东移动通信有限公司 | Wireless communication method and apparatus |
| CN109120313B (en) | 2017-06-26 | 2023-11-10 | 华为技术有限公司 | Rank indication reporting method and device, and indication method and device |
| EP3614576B1 (en) * | 2017-06-26 | 2022-03-02 | Huawei Technologies Co., Ltd. | Rank indication reporting method and device, and indication method and device |
| CN112655157B (en) * | 2018-09-14 | 2023-12-12 | 高通股份有限公司 | CSI reporting configuration with codebook list |
| CN111278005B (en) | 2019-01-22 | 2021-09-24 | 维沃移动通信有限公司 | Capability information reporting method, precoding matrix indication feedback method and related equipment |
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| CN102387107A (en) * | 2010-09-01 | 2012-03-21 | 夏普株式会社 | Joint encoding method and encoder based on binary tree |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2011129585A2 (en) * | 2010-04-12 | 2011-10-20 | 엘지전자 주식회사 | Method and apparatus for efficient feedback in a wireless communication system that supports multiple antennas |
| 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 |
| WO2012011718A2 (en) * | 2010-07-19 | 2012-01-26 | 엘지전자 주식회사 | Method and device for transmitting control information in wireless communication system |
| CN102387107A (en) * | 2010-09-01 | 2012-03-21 | 夏普株式会社 | Joint encoding method and encoder based on binary tree |
| CN102263613A (en) * | 2011-08-08 | 2011-11-30 | 中兴通讯股份有限公司 | Method and device for feeding back channel state information |
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