CN106941391A - The method and device that channel condition information CSI is reported - Google Patents

Abstract

The invention provides the method and device that a kind of channel condition information CSI is reported, wherein, this method includes：CSI to be reported is determined according to first condition and second condition, wherein, the CSI to be reported includes M classes CSI；Report the CSI to be reported of determination.By the present invention, solving present in correlation technique CSI, to quantify feedback complexity big, the problem of high cost, and then has reached that reduction CSI quantifies the effect of feedback complexity and cost.

Description

The method and device that channel condition information CSI is reported

Technical field

The present invention relates to the communications field, the method and device reported in particular to a kind of channel condition information CSI.

Background technology

In wireless communication system, transmitting terminal and receiving terminal typically can using adopt many antennas send and receive it is higher to obtain Speed.One principle of multi-antenna technology is some features using channel to form the multilayer transmission of match channels feature, The radiation direction of signal is very targeted, can effective lifting system performance, on the basis of bandwidth and power is not increased Significant performance boost is just obtained, is a very promising technology, the extensive use in current system.Multiaerial system Data transmission performance quality depend primarily on measurement and the feedback of channel information.Therefore the measurement of channel information and feedback are many The core content of antenna technology；How the degree of accuracy of channel measurement and feedback of channel information is ensured, expense, robustness, which turn into, knows clearly One major issue.

Quantify the basic of feedback correlation with channel condition information (Channel State Information, referred to as CSI) Content is as follows：

CSI (RI/PMI/CQI) feedback content：Implicit information feedback generally comprises channel quality and indicates letter Cease (Channel quality indication, referred to as CQI), precoding matrix indicators (Precoding Matrix Indicator, referred to as PMI) and order designator (Rank Indicator, referred to as RI).CQI is measurement down channel quality One index of quality.CQI is represented with 0~15 integer value in 36-213 agreements, and different CQI etc. are represented respectively Level, different CQI correspond to respective modulation system and encoder bit rate (MCS).RI is used for the number for describing space independent channel, right Answer the order of channel response matrix., it is necessary to which UE feeds back RI information, other moulds under Open-Loop Spatial Multiplexing and Closed-Loop Spatial Multiplexing pattern RI information need not be fed back under formula.The sum of ranks number of plies correspondence of channel matrix.PMI feedbacks are optimal precoding informations, based on rope Draw feedback, the code word of the feature of present channel is most matched in the code book for indicating agreement.

CSI two kinds of feedback systems：Terminal CSI feedback is primarily present two ways：Base station can be with configurating terminal to letter Road information is measured and quantified, and passes through ascending control channel (Physical Uplink Control Channel, abbreviation For PUCCH) the CSI information (including RI/PMI/CQI) of quantization is periodically fed back.Base station can also be non-when needed Periodically triggering terminal carries out reporting for CSI information (including RI/PMI/CQI) suddenly.To overcome periodic feedback real-time not Enough height, the problem of CSI quantified precisions are limited to control channel expense.

CSI processes (Process)：3GPP also introduces the concept of CSI process (can also be referred to as Process), Base station can configure multiple CSI process for terminal, equivalent to one channel condition information of each CSI process measure and It is independent between feedback process, each CSI process, parameter configuration can be carried out respectively.In transmission mode 9,1 is supported 4 Process of maximum can be supported in individual Process, transmission mode 10.Letter defined in each CSI process configuration The configuration of road measurement part and the configuration of interferometry part and feedback model.

Feed back classification：(Long-Term Evolution are referred to as Long Term Evolution of the CSI measurement and feedback in early stage LTE) it is designed in system version fairly simple；The CSI feedback of early stage only supports a set of a small amount of pilot frequency port (2,4,8) Configuration and the feedback of low-dimensional, pilot frequency port are all non-precoded pilot tone；But as number of antennas is more and more, required precision is more next Higher, the deployment of base station is more and more various, therefore pilot-frequency expense and feedback overhead and feedback quantization complexity have obvious increasing It is long.New LTE versions introduce new CSI feedback class declaration, and the classification specifically fed back has two kinds, respectively Class A With Class B.Base station can be each CSI processes configuration feedback classification.Class A are the classification for supporting higher-dimension 2D antenna topologies (support>8 ports), non-precoded pilot measurement of the feedback based on higher-dimension has used high-precision code book；Class B are branch Hold the classification (pilot number that many set precoding CSI-RS (reference signal, Reference Signal) of configuration carry out beam selection>1 Set, total port number can be supported>8 ports), the CSI-RS that base station is sent in this case, generally precoded pilot, UE May need first to carry out the selection of precoded pilot, or precoded pilot resource Resource selections, then again based on selection CSI-RS resource carry out the quantization feedback of channel information, including resource selections information CRI (CSI-RS Resource index, are properly termed as BI, beam index again), and the corresponding RI/ of CSI-RS resource selected PMI/CQI information；

Subframe collection Subframe Set：Base station can configure subframe set for terminal in some circumstances, if do not had Configuration then thinks that all subframes are same subframe set.It can be considered as having identical interference in same subframe set Situation, such as one subframe set has the strong jamming from macro station, and another is not by the strong jamming of macro station；Cause This different subframe set can typically compare the statistical average of independent progress CSI measurements, some related CSI measurement configurations It is also to be configured respectively for different subframe set.

For some the feedback classifications newly introduced, the pilot tone dimension that wherein Class A feedbacks are generally corresponded to is all higher, greatly In 8 ports, the increase that channel estimation complexity can be at double；At the same time the code book dimension used during channel quantitative is big, code Code word also had several times of growth to number of words mesh in the past relatively, and the selection complexity of code word can be very high；Class B will enter to many set pilot tones Row channel measurement and interferometry, it is also desirable to the Performance comparision after quantifying to the channel informations for covering pilot tones, complexity more It is equally also very high；Therefore either Class A and Class B feedback can all be brought to the implementation complexity and cost of terminal compared with Big challenge.

For the quantization feedbacks of CSI present in correlation technique complexity greatly, the problem of high cost, not yet propose at present effective Solution.

The content of the invention

The invention provides the method and device that a kind of channel condition information CSI is reported, at least to solve in correlation technique It is big that the CSI of presence quantifies feedback complexity, the problem of high cost.

According to an aspect of the invention, there is provided a kind of method that channel condition information CSI is reported, including：According to One condition and second condition determine CSI to be reported, wherein, the CSI to be reported includes M classes CSI；The described of determination is reported to treat Report CSI；Wherein：The first condition includes at least one of：The feedback classification configured for current CSI processes is Class B, And K set pilot tones are configured with, wherein, K>KB, KB are positive integer；The feedback classification configured for current CSI processes is Class B, and Total port number N of configuration_total≥N_totalB, wherein, N_totalBFor the integer more than or equal to 8；For the anti-of current CSI processes configuration Feedback type be Class A, and configuration total port number N_total≥N_totalA, wherein, N_totalAFor the integer more than or equal to 8；With/ Or, the second condition includes at least one of：In X ms, the P class CSI feedback information for belonging to identical CSI processes has been reported Accuse and/or it is updated once, wherein, the X be positive integer, the P classes CSI feedback information be the M classes CSI subset, 1≤ P≤M；In X ms, belong to identical CSI processes, and CSI reference resources belong to the P class CSI feedback information of identical subframe collection and reported Accuse and/or it is updated once, wherein, the X be positive integer, the P classes CSI feedback information be the M classes CSI subset, 1≤ P≤M。

Alternatively, X >=5；And/or, the subframe collection is what is determined with base station by way of agreement, or passes through base Stand what the mode configured was determined.

Alternatively, determine that the CSI to be reported includes according to the first condition and the second condition：Judge whether same When meet the first condition and the second condition；When judged result is meets simultaneously, determine in the CSI to be reported In the information of P class CSI feedback information in the information content of the P classes CSI feedback information and the CSI reported before current time Appearance is identical, wherein, in the CSI reported before the P classes CSI feedback information and the current time in the CSI to be reported P class CSI feedback information meet following condition：Corresponding to identical CSI processes, with identical CSI types and CSI reference resources； Or, corresponding to identical CSI processes, with identical CSI types, and CSI reference resources belong to identical subframe collection.

Alternatively, the type of the CSI to be reported is according to the Meaning of Information and the CSI to be reported of the CSI to be reported Quantization granularities determine, wherein, the type of the CSI is included with least one Types Below：Broadband RI；Subband RI；Best T1 Individual subband RI；Broadband PMI；Subband PMI；T2 best subband PMI；First PMI in broadband；The PMI of broadband the 2nd；Subband second PMI；First PMI of T3 best subband, the 2nd PMI of best T4 subband；Broadband CQI, subband CQI, best T5 Individual subband CQI；Broadband CRI, subband CRI, T6 best subband CRI, wherein, described T1, T2, T3, T4, T5, T6 are just Integer.

Alternatively, determine that the CSI to be reported includes according to the first condition and the second condition：According to described One condition, the second condition and third condition determine the CSI to be reported, wherein, the third condition include it is following at least One of：Terminal capability grade belongs to predetermined set；CSI measurement limitation functions do not enable or not configured CSI measurement limitations；Prelist Code matrix indicates that PMI feedbacks are not configured；The transmission mode of configuration belongs to predetermined transmission mode set.

Alternatively, the CSI bags to be reported are determined according to the first condition, the second condition and the third condition Include：Judge whether while meeting the first condition, the second condition and the third condition；When judged result is simultaneously full When sufficient, the CSI for determining the information content of the P classes CSI feedback information in the CSI to be reported and being reported before current time In P class CSI feedback information the information content it is identical, wherein, the P classes CSI feedback information and institute in the CSI to be reported The P class CSI feedback information stated in the CSI reported before current time meets following condition：Corresponding to identical CSI processes, have Identical CSI types and CSI reference resources；Or, corresponding to identical CSI processes, with identical CSI types, and CSI reference resources Belong to identical subframe collection.

Alternatively, the X is determined according at least one following information：The frame structure type of system or the duplex side of system Formula；The ability rating of terminal UE；The number for the CSI processes that UE is supported；The number for total CSI processes that UE is handled simultaneously；Measurement Limitation arrangement parameter；Pre-coding matrix instruction PMI and/or order designator RI feedback enable configuration；The configuration parameter of code book.

According to another aspect of the present invention, a kind of method that channel condition information CSI is reported is additionally provided, including：It is determined that CSI reports the time interval demand parameter N of time-domain position and CSI reference resources time-domain positions_rpt-refOr CSI triggering time domains position Put the spaced apart condition demand parameter N with CSI reference resources time-domain positions_trg-ref, wherein it is determined that the N_rpt-refOr N_trg-refBag Include：The N is determined according at least one following information_rpt-refOr N_trg-ref：The ability rating of terminal UE, measurement limitation arrangement ginseng The feedback of number, pre-coding matrix instruction PMI and/or order designator RI enables configuration, the configuration of subframe collection, the N of base station_rpt-ref And/or N_trg-refParameter configuration signaling, transmission mode；Or, the N is determined according at least one following information_rpt-refOr N_trg-ref：Terminal UE support CSI processes number, UE simultaneously handle total CSI processes number, the frame structure type of system or The duplex mode of system；According to the N of determination_rpt-refWhen reporting the time-domain position to determine the CSI reference resources with the CSI Domain position, or according to the N of determination_trg-refThe CSI reference resources time domain position is determined with CSI triggering time-domain positions Put；CSI to be reported is determined according to the CSI reference resources time-domain position of determination；Report the CSI to be reported.

According to another aspect of the present invention, a kind of method that channel condition information CSI is reported is additionally provided, including：According to At least one following information determines the time interval parameter N that CSI reports time-domain position to trigger time-domain position with CSI_rpt-trg：Terminal UE ability rating, measurement limitation arrangement parameter, pre-coding matrix instruction PMI and/or order designator RI feedback enable configuration, Feed back classification configuration, codebook configuration parameter, the configuration of pilot tone, the configuration of subframe collection, the N of base station_rpt-trgParameter configuration signaling, UE CSI processes number, the UE of support are while total CSI processes number, the transmission mode of processing；According to the N of determination_rpt-trgAnd The CSI triggerings time-domain position determines that the CSI reports time-domain position；It is determined that the CSI report time-domain position to report to treat Report CSI.

According to another aspect of the present invention there is provided the device that a kind of channel condition information CSI is reported, including：First is true Cover half block, for determining CSI to be reported according to first condition and second condition, wherein, the CSI to be reported includes M classes CSI； First reporting module, the CSI to be reported for reporting determination；Wherein：The first condition includes at least one of：For The feedback classification of current CSI processes configuration is Class B, and is configured with K set pilot tones, wherein, K>KB, KB are positive integer；To work as The feedback classification of preceding CSI processes configuration is Class B, and total port number N of configuration_total≥N_totalB, wherein, N_totalBFor more than Or the integer equal to 8；The feedback kind configured for current CSI processes is Class A, and total port number N of configuration_total≥ N_totalA, wherein, N_totalAFor the integer more than or equal to 8；And/or, the second condition includes at least one of：X ms It is interior, belonged to the P class CSI feedbacks information of identical CSI processes it is reported that and/or it is updated once, wherein, the X be positive integer, The P classes CSI feedback information is the subset of the M classes CSI, 1≤P≤M；In X ms, belong to identical CSI processes, and CSI is referred to Resource belonged to the P class CSI feedbacks information of identical subframe collection it is reported that and/or it is updated once, wherein, the X be positive integer, The P classes CSI feedback information is the subset of the M classes CSI, 1≤P≤M.

According to another aspect of the present invention, the device that a kind of channel condition information CSI is reported is additionally provided, including：Second Determining module, for determining that CSI reports the time interval demand parameter N of time-domain position and CSI reference resources time-domain positions_rpt-ref Or the spaced apart condition demand parameter N of CSI triggering time-domain positions and CSI reference resources time-domain positions_trg-ref, wherein it is determined that institute State N_rpt-refOr N_trg-refIncluding：The N is determined according at least one following information_rpt-refOr N_trg-ref：Ability of terminal UE etc. Level, measurement limitation arrangement parameter, pre-coding matrix instruction PMI and/or order designator RI feedback enable configuration, subframe collection and matched somebody with somebody Put, the N of base station_rpt-refAnd/or N_trg-refParameter configuration signaling, transmission mode；Or, determined according at least one following information The N_rpt-refOr N_trg-ref：Total CSI processes number that CSI processes number that terminal UE is supported, UE are handled simultaneously, system The duplex mode of frame structure type or system；3rd determining module, for the N according to determination_rpt-refReported with the CSI Time-domain position determines the CSI reference resources time-domain position, or according to the N of determination_trg-refTime domain is triggered with the CSI Position determines the CSI reference resources time-domain position；4th determining module, during for according to the CSI reference resources of determination Domain position determines CSI to be reported；Second reporting module, for reporting the CSI to be reported.

According to another aspect of the present invention, the device that a kind of channel condition information CSI is reported is additionally provided, including：5th Determining module, between the time for reporting time-domain position and CSI triggering time-domain positions according at least one following information determination CSI Every parameter N_rpt-trg：Ability rating, measurement limitation arrangement parameter, pre-coding matrix instruction PMI and/or the order designator of terminal UE RI feedback enables configuration, feedback classification configuration, codebook configuration parameter, the configuration of pilot tone, the configuration of subframe collection, base station N_rpt-trgCSI processes number, the UE that parameter configuration signaling, UE are supported are while total CSI processes number, the transmission mode of processing； 6th determining module, for the N according to determination_rpt-trgAnd the CSI triggerings time-domain position determines that the CSI reports time domain Position；3rd reporting module, for it is determined that the CSI report time-domain position to report CSI to be reported.

By the present invention, CSI to be reported is determined using according to first condition and second condition, wherein, the CSI to be reported Including M classes CSI；Report the CSI to be reported of determination；Wherein：The first condition includes at least one of：To be current The feedback classification of CSI processes configuration is Class B, and is configured with K set pilot tones, wherein, K>KB, KB are positive integer；For current CSI Process configuration feedback classification be Class B, and configuration total port number N_total≥N_totalB, wherein, N_totalBTo be more than or waiting In 8 integer；The feedback kind configured for current CSI processes is Class A, and total port number N of configuration_total≥N_totalA, its In, N_totalAFor the integer more than or equal to 8；And/or, the second condition includes at least one of：In X ms, belong to phase With CSI processes P class CSI feedbacks information it is reported that and/or it is updated once, wherein, the X be positive integer, the P classes CSI feedback information is the subset of the M classes CSI, 1≤P≤M；In X ms, belong to identical CSI processes, and CSI reference resources belong to In identical subframe collection P class CSI feedbacks information it is reported that and/or it is updated once, wherein, the X be positive integer, the P Class CSI feedback information is the subset of the M classes CSI, 1≤P≤M.Solve CSI present in correlation technique and quantify feedback complexity Degree is big, the problem of high cost, and then has reached that reduction CSI quantifies the effect of feedback complexity and cost.

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 for the method that the first CSI according to embodiments of the present invention is reported；

Fig. 2 is the flow chart for the method that second of CSI according to embodiments of the present invention is reported；

Fig. 3 is the flow chart for the method that the third CSI according to embodiments of the present invention is reported；

Fig. 4 is the structured flowchart for the device that the first CSI according to embodiments of the present invention is reported；

Fig. 5 is the structured flowchart of the first determining module 42 in the device that the first CSI according to embodiments of the present invention is reported One；

Fig. 6 is the structured flowchart of the first determining module 42 in the device that the first CSI according to embodiments of the present invention is reported Two；

Fig. 7 is the structured flowchart of the second determining unit 62 in the device that the first CSI according to embodiments of the present invention is reported；

Fig. 8 is the structured flowchart for the device that second of CSI according to embodiments of the present invention is reported；

Fig. 9 is the structured flowchart for the device that the third CSI according to embodiments of the present invention is reported.

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.

It should be noted that term " first " in description and claims of this specification and above-mentioned accompanying drawing, " Two " etc. be for distinguishing similar object, without for describing specific order or precedence.

Terminal is surveyed in multiple-input and multiple-output (Multiple Input Multiple Output, referred to as MIMO) system Amount feedback CSI general flow comprises the following steps：

Step A：Whether terminal judges are needed to report into line period CSI or aperiodic CSI is reported, if on CSI needs Report, then judge the position for needing the CSI types and CSI of feedback to report；Cycle CSI does not need typically extra dynamic contact to transmit Order, aperiodic CSI then needs to be triggered in descending control signaling, and terminal carries out CSI calculating after triggering, delays some subframes Reporting for CSI is carried out again.CSI types are divided into many kinds, and the one or more that CSI types can be in following condition are drawn Point：

CSI Meaning of Information, wherein, the CSI Meaning of Information includes：RI,PMI,CQI,CRI；

CSI quantization granularities, wherein, the CSI quantization granularities include：Broadband, the subband of all size；

Some common CSI types are as follows：Broadband RI；Subband RI；T1 best subband RI；Broadband PMI；Subband PMI； T2 best subband PMI；First PMI in broadband；The PMI of broadband the 2nd；The PMI of subband the 2nd；The first of T3 best subband PMI, the 2nd PMI of best T4 subband；Broadband CQI, subband CQI, T5 best subband CQI；Broadband CRI, subband CRI, T6 best subband CRI；

Feedback kind is general to be determined according to CSI process and its corresponding feedback model (feedback mode), feedback The type combination of pattern definition CSI (CQI/PMI/RI) feedbacks, in the present embodiment, feedback kind is by feedback granularity, feedback Position, and the content etc. of feedback are determined.Wherein, non-periodic feedback physically row shared channel (Physical uplink Shared channel, referred to as PUSCH) inner transmission, including pattern as shown in table 1：

Table 1

Periodic feedback pattern refers to that in the pattern fed back periodically in PUCCH it includes pattern as shown in table 2：

Table 2

These feedback models define the content that terminal needs the CSI of feedback, specifically may be referred to LTE PHYs rule Model TS36.213；

Step B：Terminal also needs to determine the corresponding reference resources of this CSI feedback, and in general reference resources are exactly CSI The references object of quantization, the position of reference resources is that comparison is fixed in existing agreement, and position (N is reported with CSI_rptSon Frame) or CSI trigger positions N (is reported) corresponding to aperiodic CSI_trgIn the presence of certain relation.Such as single CSI process by with When putting, reference resources position is the subframe for meeting following condition：

Condition 1, positioned at N_rpt-N_rpt-refSubframe before individual subframe or its son；

Condition 2, the subframe is effective；

Condition 3, reports position nearest in the case where meeting other conditions from CSI；

Here N_rpt-ref=m, m>0, preferably can be 4；Frequency domain position is some corresponding Resource Block of CSI (Resource Block, referred to as RB) or subband Subband；

It can also be the subframe for meeting following condition if non-periodic feedback reference resources position：

Condition 1, positioned at N_trg-N_trg-refSubframe before individual subframe or its son；

Condition 2, the subframe is effective；

Condition 3, it is nearest from CSI trigger positions in the case where meeting other conditions；

N_trg-ref=n, n are integer；

Step C：Terminal can carry out channel estimation after CSI reference resources position is determined, and PMI quantifies, and CQI is calculated, Order Rank calculating of channel etc., if many set CSI-RS are configured, can also carry out CSI-RS selections, and report selection CSI-RS resource index (CRI) information is to base station；

In above process, N_rpt-refOr N_trg-refUsually compare fixed, have with CSI Process configuration number In certain relation, FDD system, respectively m, n, respectively m+ when multiple Process are configured when 1 Process is configured 1,n+1；

Using above-mentioned technical scheme can there are the following problems, terminal is difficult that processing completes all CSI under partial picture Quantify, so that the problem of CSI quantifies feedback complexity, high cost can be caused.

Regarding to the issue above, a kind of method that channel condition information CSI is reported, Fig. 1 are proposed in embodiments of the present invention It is the flow chart for the method that the first CSI according to embodiments of the present invention is reported, as shown in figure 1, the flow comprises the following steps：

Step S102, CSI to be reported is determined according to first condition and second condition, wherein, the CSI to be reported includes M classes CSI；

Step S104, reports the CSI to be reported of determination；

Wherein, above-mentioned first condition includes at least one of：The feedback classification configured for current CSI processes is Class B, and K set pilot tones are configured with, wherein, K>KB, KB are positive integer；The feedback classification configured for current CSI processes is Class B, And total port number N of configuration_total≥N_totalB, wherein, N_totalBFor the integer more than or equal to 8；Configured for current CSI processes Feedback kind be Class A, and configuration total port number N_total≥N_totalA, wherein, N_totalAFor the integer more than or equal to 8； And/or, the second condition includes at least one of：In X ms, the P class CSI feedbacks information of identical CSI processes is belonged to Report and/or it is updated once, wherein, X is positive integer, and P class CSI feedbacks information is M classes CSI subset, 1≤P≤M；X ms It is interior, belong to identical CSI processes, and CSI reference resources belong to the P class CSI feedbacks information of identical subframe collection it is reported that and/or more It is new to cross once, wherein, X is positive integer, and P class CSI feedbacks information is M classes CSI subset, 1≤P≤M.

Wherein, the main body for performing the operation shown in Fig. 1 can be terminal, for example, mobile phone.It is of course also possible to be other classes The entity device of type.

By above-mentioned steps, in the CSI to be reported determined according to above-mentioned first condition and second condition, there can be part The content that CSI was directly reported without renewal using last time, without being all updated to all CSI, so that effectively The terminal present in correlation technique that avoids be difficult that processing completes the problem of all CSI quantify, greatly reduce CSI quantizations The complexity and cost of feedback.Solving present in correlation technique CSI, to quantify feedback complexity big, the problem of high cost, enters And reached reduction CSI and quantified the effect of feedback complexity and cost.

In an optional embodiment, X >=5；In another optional embodiment, above-mentioned subframe collection is logical with base station Cross what the mode arranged was determined, or determined by way of base station is configured.When the executive agent of such scheme is terminal, on It can be terminal to state subframe to integrate and base station is determined by way of agreement or base station configures as terminal, it is necessary to say Bright, above-mentioned two ways is than determination mode more preferably, in practical application, can also be using other determination sides Formula, for example, be determined by third party's (that is, other network element devices).

In an optional embodiment, determine that CSI to be reported includes according to above-mentioned first condition and second condition：Judge Whether above-mentioned first condition and second condition are met simultaneously；When judged result is meets simultaneously, determine in above-mentioned CSI to be reported P class CSI feedback information the information content and the information content of the P class CSI feedback information in the CSI that is reported before current time It is identical, wherein, the P class CSI feedbacks in the CSI reported before the P class CSI feedback information and current time in the CSI to be reported Information meets following condition：Corresponding to identical CSI processes, with identical CSI types and CSI reference resources；Or, corresponding to phase With CSI processes, with identical CSI types, and CSI reference resources belong to identical subframe collection.

In an optional embodiment, the one or more that CSI types can be in following condition are divided：

CSI Meaning of Information, wherein, the CSI Meaning of Information includes：RI,PMI,CQI,CRI；

CSI quantization granularities, wherein, the CSI quantization granularities include：Broadband, the subband of all size；

Alternatively, CSI types can include with least one Types Below：Broadband RI；Subband RI；T1 best subband RI；Broadband PMI；Subband PMI；T2 best subband PMI；First PMI in broadband；The PMI of broadband the 2nd；The PMI of subband the 2nd；Most First PMI of T3 good subband, the 2nd PMI of best T4 subband；Broadband CQI, subband CQI, T5 best subband CQI；Broadband CRI, subband CRI, T6 best subband CRI, wherein, above-mentioned T1, T2, T3, T4, T5, T6 are positive integer.

In an optional embodiment, determine that CSI to be reported includes according to first condition and second condition：According to first Condition, second condition and third condition determine above-mentioned CSI to be reported, wherein, the third condition includes at least one of：Terminal Ability rating belongs to predetermined set；CSI measurement limitation functions do not enable or not configured CSI measurement limitations；Pre-coding matrix refers to Show that PMI feedbacks are not configured；The transmission mode of configuration belongs to predetermined transmission mode set.

In an optional embodiment, determined according to above-mentioned first condition, second condition and third condition on above-mentioned treat Reporting CSI includes：Judge whether while meeting above-mentioned first condition, second condition and third condition；When judged result is simultaneously full When sufficient, determine the information content of the P class CSI feedback information in above-mentioned CSI to be reported and the CSI that is reported before current time in The information content of P class CSI feedback information is identical, wherein, the P classes CSI feedback information and current time in the CSI to be reported P class CSI feedback information in the CSI reported before meets following condition：Corresponding to identical CSI processes, with identical CSI types With CSI reference resources；Or, corresponding to identical CSI processes, with identical CSI types, and CSI reference resources belong to identical Subframe collection.

In an optional embodiment, above-mentioned X ms can be determined according at least one following information：System Frame structure type or system duplex mode；The ability rating of terminal UE；The number for the CSI processes that UE is supported；UE is simultaneously The number of total CSI processes of processing；Measure limitation arrangement parameter；Pre-coding matrix instruction PMI's and/or order designator RI is anti- Feedback enables configuration；The configuration parameter of code book.

It should be noted that in above-mentioned mimo system terminal measurement feedback CSI general flow in processing exist it is upper State outside the problem of pointing out, it is also possible to which there are the following problems, e.g., the determination of CSI reference resources position is based only on matching somebody with somebody for Process Number determination is put, but actually this flexibility is inadequate, and CSI reference resources position is from bigger, the terminal that reports time interval Complexity can be more lower, when a kind of simple solution is increase measurement reference resources corresponding CSI report Between between spacing, but increase the spacing be likely to result in CSI delay increase, can be influenceed in the case that CSI real-time is bad The performance of downlink transfer, lack at present a preferable mode carried out between terminal complexity, CSI delays one it is good flat Weighing apparatus；Therefore, the key for solving the problem is when some computational complexities are high, it is necessary to which appropriate lower wanting for this aspect Ask.Illustrated below for the solution：

Fig. 2 is the flow chart for the method that second of CSI according to embodiments of the present invention is reported, as shown in Fig. 2 the flow bag Include following steps：

Step S202, determines that CSI reports the time interval demand parameter of time-domain position and CSI reference resources time-domain positions N_rpt-refOr the spaced apart condition demand parameter N of CSI triggering time-domain positions and CSI reference resources time-domain positions_trg-ref, wherein, really Fixed above-mentioned N_rpt-refOr N_trg-refIncluding：N is determined according at least one following information_rpt-refOr N_trg-ref：Ability of terminal UE etc. Level, measurement limitation arrangement parameter, pre-coding matrix instruction PMI and/or order designator RI feedback enable configuration, subframe collection and matched somebody with somebody Put, the N of base station_rpt-refAnd/or N_trg-refParameter configuration signaling, transmission mode；Or, determined according at least one following information The N_rpt-refOr N_trg-ref：Total CSI processes number that CSI processes number that terminal UE is supported, UE are handled simultaneously, system The duplex mode of frame structure type or system；

Step S204, according to the above-mentioned N of determination_rpt-refTime-domain position is reported to determine CSI reference resources time domain position with CSI Put, or according to the above-mentioned N of determination_trg-refCSI reference resources time-domain positions are determined with CSI triggering time-domain positions；

Step S206, CSI to be reported is determined according to the CSI reference resources time-domain positions of determination；

Step S208, reports above-mentioned CSI to be reported.

By above-mentioned steps, it can be postponed with active balance terminal complexity and CSI, solved present in correlation technique It is big that CSI quantifies feedback complexity, the problem of high cost, and then has reached that reduction CSI quantifies the effect of feedback complexity and cost.

Fig. 3 is the flow chart for the method that the third CSI according to embodiments of the present invention is reported, as shown in figure 3, the flow bag Include following steps：

Step S302, according at least one following information determine CSI report time-domain position and CSI trigger time-domain position when Between spacing parameter N_rpt-trg：Ability rating, measurement limitation arrangement parameter, pre-coding matrix instruction PMI and/or the order of terminal UE refer to Show symbol RI feedback enable configuration, feedback classification configuration, the configuration of codebook configuration parameter, pilot tone (total port number and/or pilot tone Tricks), the configuration of subframe collection, the N of base station_rpt-trgParameter configuration signaling, the CSI processes number of UE supports, UE are handled simultaneously Total CSI processes number, transmission mode；

Step S304, according to the above-mentioned N of determination_rpt-trgAnd CSI triggering time-domain positions determine that CSI reports time-domain position；

Step S306, it is determined that above-mentioned CSI report time-domain position to report CSI to be reported.

By above-mentioned steps, it can be postponed with active balance terminal complexity and CSI, solved present in correlation technique It is big that CSI quantifies feedback complexity, the problem of high cost, and then has reached that reduction CSI quantifies the effect of feedback complexity and cost.

Below exemplified by performing the main body of the method in above-described embodiment and be terminal, in conjunction with specific embodiments to the present invention Illustrate：

Embodiment 1

The implementation can include embodiment 1,2,3.

Embodiment 1：

The combination for 1 (corresponding to above-mentioned first condition) and the condition 2 (corresponding to above-mentioned second condition) of imposing a condition, should Combine the renewal for determining whether to carry out CSI；Including following some conditions 1 and the combination setting of condition 2：

Condition 1 includes at least one following：

(1a) current Process configurations Class B, and it is configured with K set pilot tones, K>K_B, K_BFor positive integer；

(1b) current Process configurations Class B, and total port number N of configuration_totalMore than or equal to N_totalB, N_totalBFor Integer more than or equal to 8；

(1c) current Process configurations Class A, and total port number N of configuration_totalMore than or equal to N_totalA, N_totalAFor Integer more than or equal to 8；

Condition 2 includes at least one following：

In (2a) X ms, belonged to identical Process P class CSI feedbacks information it is reported that/it is updated once, X is just whole Number, preferably, X >=5；

In (2b) X ms, belong to identical Process, and CSI reference resources belong to identical Subframe set P classes CSI Feedback information it is reported that/updated once X is positive integer, preferably, X >=5；Subframe set described here are by end End is configured with base station agreement or base station to terminal；

Above-mentioned P class CSI feedbacks information is the subset that M classes CSI quantifies feedback kind, 1≤P≤M, for example, it may be wide Band and/or subband, or can be the one or more in best M subband corresponding CRI, RI, PMI, CQI；Wherein, bar The corresponding relation that part 1, condition 2 and CSI update is as shown in table 3：

Table 3

Condition 1	Condition 2	CSI, which updates, to be judged
			(1a)	(2a)	Condition 1,2 is met simultaneously, then does not update P classes CSI
(1b)	(2a)	Condition 1,2 is met simultaneously, then does not update P classes CSI
			(1c)	(2a)	Condition 1,2 is met simultaneously, then does not update P classes CSI
(1a)	(2b)	Condition 1,2 is met simultaneously, then does not update P classes CSI
			(1b)	(2b)	Condition 1,2 is met simultaneously, then does not update P classes CSI
(1c)	(2b)	Condition 1,2 is met simultaneously, then does not update P classes CSI

In addition to above-mentioned condition 1 and condition 2, third condition can also be set；

Third condition includes at least one of：Terminal capability grade belongs to predetermined set C；Measurement limitation function does not make Energy；Belong to predetermined transmission mode set D；PMI feedbacks are enabled.

The example of terminal capability grade is as follows, which defines its ability value supported in some maximums of uplink and downlink, Base station can arrange set C, such as Category (7,8), Category (6,7,8), Category (8,9) etc. with terminal, will belong to Third condition is used as in set C；Table 4 is the ability value of the descending support of definition, and table 5 is the ability of the up support of definition Value：

Table 4

Table:Downlink physical layer parameter values set by the field ue- Category

Table 5

Table:Uplink physical layer parameter values set by the field ue- Category

It is pointed out that UE category are only a part of content of terminal capability grade, terminal capability grade is also Include some other contents, e.g., for same category, some UE support a certain optional function, and the UE singly having does not have It is supported, then also can is considered as different UE ability ratings.Table 6 is transmission mode definition：

Table 6

Base station can arrange set D, such as TM (9), TM (9,10), TM (8,9,10) etc. with terminal, can be by transmission mode Belong to set D as above-mentioned third condition.

Base station can for terminal configuration measurement limitation function enable or do not enable, measurement limitation function main purpose be by Time domain or the control of the measurement window of frequency domain are in certain scope so that base station can carry out different in different time ranges Pilot tone is sent, and also One function is in order to disturb the measurement of aspect to be limited in the range of certain subframe, if base station is configured Measurement limitation, the CSI report content before use may will result in inaccurate, it is therefore desirable to which meeting the condition could ensure CSI is accurately fixed；Third condition can be that measurement limitation is not enabled, or not configure measurement limitation.

Base station can enable for terminal configuration PMI feedbacks or not enable, and it is this that situation about not enabling is mainly used in TDD system Situation base station can obtain some channel informations by reciprocity, for terminal, need not now feed back PMI, its complexity Will be much lower, the limitation without carrying out CSI renewals；Third condition can be that PMI feedbacks are enabled.

Embodiment 2

If terminal judges meet first condition and second condition, or meet the one two three condition, then terminal meeting Following operation is performed to reduce the complexity of CSI quantification treatments：

What the information content of P class CSI feedback information and last time reported in this CSI for reporting of terminal " corresponds to identical The information content of Process, with identical CSI types, and CSI reference resources " P class CSI feedback information is identical；

Or, what the information content of P class CSI feedback information and last time reported in this CSI for reporting of terminal " corresponds to phase Same Process, with identical CSI types, and CSI reference resources belong to identical subframe set " P class CSI feedback information The information content it is identical；

Here P classes CSI information can be the part in all M class CSI or M classes CSI.

Embodiment 3

An X parameter is refer in condition 2 in the above embodiments 1, the X parameter can a time judge bar The threshold parameter of part, the design of the threshold parameter needs to consider several factors, preferably, can according to some following aspects come The X parameter is determined, includes the frame structure type or the duplex mode of system of system；As shown in table 7：

Table 7

Frame structure A, duplex mode FDD	Frame structure B, duplex mode TDD
		X=a1	X=a2

And/or, X parameter is determined according to UE ability ratings, as shown in table 8：

Table 8

Category set A	Category set B
		X=a3	X=a4

And/or, the Process numbers supported according to UE determine X parameter, as shown in table 9：

Table 9

The Process numbers of support<4	Process number >=4 of support
		X=a5	X=a6

And/or, X parameter is determined according to the UE total Process numbers handled simultaneously, as shown in table 10：

Table 10

The Process numbers of parallel processing<4	Process number >=4 of parallel processing
		X=a7	X=a8

And/or, X parameter is determined according to measurement limitation parameter, as shown in table 11：

Table 11

Measurement limitation is enabled	Measurement limitation is not enabled
		X=a9	X=a10

And/or, configuration is enabled according to PMI and/or RI feedback and determines X parameter, as shown in table 12：

Table 12

And/or, X parameter is determined according to transmission mode, as shown in table 13：

Table 13

Transmission mode 1-8	Transmission mode 9-10
		X=a10	X=a11

And/or, X parameter is determined according to Subframe set configuration parameter, as shown in table 14 or table 15：

Table 14

1 subframe set	2 subframe set
		X=a12	X=a13

Table 15

subframe set 1	subframe set 2
		X=a14	X=a15

And/or, the X configuration signals sent according to base station determine X parameter, wherein, base station can issue signal deployment X ginsengs Number, terminal determines X according to the configuration signal, if multiple subframe set, the X parameter can be respectively configured；

The mode of a variety of determination X above can be further combined with each other.

Embodiment 2

The embodiment mainly for increase CSI reference resources interval as needed, with reduce CSI treatment times require into Row explanation, the embodiment can include embodiment 4,5,6：

Embodiment 4：

One or more determinations of the terminal in following information aggregate are " when CSI reports time-domain position with CSI reference resources The time interval demand parameter N of domain position_rpt-ref" or " CSI triggers the interval of time-domain position and CSI reference resources time-domain positions Requirement parameter N_trg-ref”；

The information in information aggregate in the embodiment includes：

UE ability ratings, as shown in table 16：

Table 16

Ability rating set A	Ability rating set B
		Nrpt-ref=m1	Nrpt-ref=m2

Limitation arrangement parameter is measured, as shown in table 17：

Table 17

Measurement limitation is enabled	Measurement limitation is not enabled
		Nrpt-ref=m3	Nrpt-ref=m4

PMI and/or RI feedback enables configuration, as shown in table 18：

Table 18

Subframe Set configuration, as shown in table 19 or table 20：

Table 19

1 subframe set	2 subframe set
		Nrpt-ref=m10	Nrpt-ref=m11

Table 20

subframe set 1	subframe set 2
		Nrpt-ref=m12	Nrpt-ref=m13

The N of base station_rpt-refAnd/or N_trg-refParameter configuration signaling, wherein, base station can configure N for terminal_rpt-refParameter, If the parameter can also be respectively configured in multiple subframe set.

Embodiment 5：

Terminal can also determine N according to the condition of codebook configuration parameter_rpt-ref/N_trg-refParameter, Class A situation Under, base station can configure a variety of codebook parameters to terminal, such as：

The dimension of code book, including the first dimension N1 and the second dimension N2；

The basis vector density of code book：First dimension basis vector density O1 and the second dimension basis vector density O2；

Codebook configuration, mainly has 4 kinds of codebook configurations, for determining codebook construction；

Different codebook configuration complexities are different, therefore can have different N_rpt-ref, as shown in table 21,22,23：

Table 21

O1*O2≤8	O1*O2>8
		Nrpt-ref=m21	Nrpt-ref=m22

Table 22

N1*N2<8	N1*N2≥8
		Nrpt-ref=m23	Nrpt-ref=m24

Table 23

Codebook configuration 1	Codebook configuration 2,3,4
		Nrpt-ref=m25	Nrpt-ref=m26

The situation that either some joints consider, as shown in table 24,25：

Table 24

O1*O2*N1*N2≤64	O1*O2*N1*N2>64
		Nrpt-ref=m27	Nrpt-ref=m28

Table 25

Embodiment 6：

Terminal is determined " when CSI reports time-domain position with CSI reference resources always according to the one or more of following information aggregate The time interval demand parameter N of domain position_rpt-ref" or " CSI triggers the interval of time-domain position and CSI reference resources time-domain positions Requirement parameter N_trg-ref" include：

The Process numbers of UE configurations, as shown in table 26：

Table 26

Process≤X1 of UE configurations	Process of UE configurations>X1
		Nrpt-ref=m41	Nrpt-ref=m42

Total Process numbers of UE parallel processings, as shown in table 27：

Table 27

Process≤X3 of parallel processing	Process of parallel processing>X4
		Nrpt-ref=m31	Nrpt-ref=m32

The duplex mode of the frame structure type or systems of system, as shown in table 28：

Table 28

FDD, frame structure type A	TDD, frame structure type B
		Nrpt-ref=m33	Nrpt-ref=m34

Aforesaid way can be combined；Time-domain position and CSI can also be reported with the CSI in embodiment 4,5 with reference to money The time interval demand parameter N of source time-domain position_rpt-refThe method of determination combines.

N in the case of general_trg-refAnd N_rpt-refTherebetween can there are a functional relation, such as N_trg-ref= N_rpt-ref- 4 or N_trg-ref=N_rpt-ref-5。

Embodiment 3

The embodiment is mainly for the interval between increasing CSI triggerings as needed and reporting, to reduce CSI treatment times It is required that illustrating, the embodiment includes embodiment 7.

Embodiment 7

" CSI reports time-domain position to trigger time domain position with CSI for one or more determinations of the terminal in following information aggregate The time interval parameter N put_rpt-trg”；Information aggregate in the embodiment includes：

UE ability ratings, as shown in table 29：

Table 29

Ability rating set A	Ability rating set B
		Nrpt-trg=n1	Nrpt-trg=n2

Limitation arrangement parameter is measured, as shown in table 30：

Table 30

Measurement limitation is enabled	Measurement limitation is not enabled
		Nrpt-trg=n3	Nrpt-trg=n4

PMI and/or RI feedback enables configuration, as shown in table 31：

Table 31

Subframe Set configuration, as shown in table 32 or table 33：

Table 32

1 subframe set	2 subframe set
		Nrpt-trg=n10	Nrpt-trg=n11

Table 33

subframe set 1	subframe set 2
		Nrpt-trg=n12	Nrpt-trg=n13

The N of base station_rpt-ref/N_trg-refParameter configuration signaling, wherein, base station can configure N for terminal_rpt-refParameter, if There are multiple subframe set that the parameter can also be respectively configured；

The Process numbers of UE configurations, as shown in table 34：

Table 34

Process of UE configurations<=X1	Process of UE configurations>X1
		Nrpt-trg=n15	Nrpt-trg=n16

Total Process numbers of UE parallel processings, as shown in table 35：

Table 35

Process of parallel processing<=X3	Process of parallel processing>X4
		Nrpt-trg=n17	Nrpt-trg=n18

Classification configuration is fed back, as shown in table 36：

Table 36

Without Class configurations	There are ClassA or Class B configurations
		Nrpt-trg=n19	Nrpt-trg=n20

The configuration (tricks of total port number and/or pilot tones) of pilot tone, as shown in table 37,38：

Table 37

Total pilot frequency port number is less than or equal to 16/32	Total pilot frequency port number is more than 16/32
		Nrpt-trg=n21	Nrpt-trg=n22

Table 38

Pilot tone tricks=1	Pilot tone tricks is more than 1
		Nrpt-trg=n23	Nrpt-trg=n24

Codebook configuration parameter, as shown in table 39,40,41：

Table 39

O1*O2≤8	O1*O2>8
		Nrpt-trg=n25	Nrpt-trg=n26

Table 40

N1*N2<8	N1*N2≥8
		Nrpt-trg=n27	Nrpt-trg=n28

Table 41

Codebook configuration 1	Codebook configuration 2,3,4
		Nrpt-trg=n29	Nrpt-trg=n30

Or, it is the situation that some joints consider, as shown in table 42,43：

Table 42

O1*O2*N1*N2≤64	O1*O2*N1*N2>64
		Nrpt-trg=n31	Nrpt-trg=n32

Table 43

Transmission mode, as shown in table 44：

Table 44

Pattern 1-8	Pattern>8
		Nrpt-trg=n35	Nrpt-trg=n36

Aforesaid way can carry out sufficiently combining to determine N_rpt-trg。

Through the above description of the embodiments, those skilled in the art can be understood that according to above-mentioned implementation The method of example can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but a lot In the case of the former be more preferably embodiment.Understood based on such, technical scheme is substantially in other words to existing The part that technology contributes can be embodied in the form of software product, and the computer software product is stored in a storage In medium (such as ROM/RAM, magnetic disc, CD), including some instructions are make it that a station terminal equipment (can be mobile phone, calculate Machine, server, or network equipment etc.) perform method described in each of the invention embodiment.

The device that a kind of CSI is reported is additionally provided in the present embodiment, and the device is used to realize above-described embodiment and preferred Embodiment, had carried out repeating no more for explanation.As used below, term " module " can realize predetermined function The combination of software and/or hardware.Although the device described by following examples is preferably realized with software, hardware, or The realization of the combination of person's software and hardware is also that may and be contemplated.

Fig. 4 is the structured flowchart for the device that the first CSI according to embodiments of the present invention is reported, as shown in figure 4, the device Including the first determining module 42 and the first reporting module 44, the device is illustrated below.

First determining module 42, for determining CSI to be reported according to first condition and second condition, wherein, this is to be reported CSI includes M classes CSI；First reporting module 44, is connected to above-mentioned first determining module 42, for reporting the above-mentioned of determination to treat Report CSI；

Wherein, above-mentioned first condition includes at least one of：The feedback classification configured for current CSI processes is Class B, and K set pilot tones are configured with, wherein, K>KB, KB are positive integer；The feedback classification configured for current CSI processes is Class B, And total port number N of configuration_total≥N_totalB, wherein, N_totalBFor the integer more than or equal to 8；Configured for current CSI processes Feedback kind be Class A, and configuration total port number N_total≥N_totalA, wherein, N_totalAFor the integer more than or equal to 8； And/or, the second condition includes at least one of：In X ms, the P class CSI feedbacks information of identical CSI processes is belonged to Report and/or it is updated once, wherein, X is positive integer, and P class CSI feedbacks information is M classes CSI subset, 1≤P≤M；X ms It is interior, belong to identical CSI processes, and CSI reference resources belong to the P class CSI feedbacks information of identical subframe collection it is reported that and/or more It is new to cross once, wherein, X is positive integer, and P class CSI feedbacks information is M classes CSI subset, 1≤P≤M.

In an optional embodiment, above-mentioned X >=5；And/or, above-mentioned subframe collection be with base station by way of agreement Determine, or determined by way of base station is configured.

Fig. 5 is the structured flowchart of the first determining module 42 in the device that the first CSI according to embodiments of the present invention is reported One, as shown in figure 5, first determining module 42 includes the determining unit 54 of judging unit 52 and first, below to first determination Module 42 is illustrated：

Judging unit 52, for judging whether while meeting above-mentioned first condition and the second condition；First determines list Member 54, is connected to above-mentioned judging unit 52, when the judged result of above-mentioned judging unit 52 is meets simultaneously, determines above-mentioned treat Report the information content of the P class CSI feedback information in CSI and P class CSI feedback information in the CSI that is reported before current time The information content is identical, wherein, the P in the CSI reported before the P class CSI feedback information and current time in above-mentioned CSI to be reported Class CSI feedback information meets following condition：Corresponding to identical CSI processes, with identical CSI types and CSI reference resources；Or Person, corresponding to identical CSI processes, with identical CSI types, and CSI reference resources belong to identical subframe collection.

In an optional embodiment, the one or more that CSI types can be in following condition are divided：

CSI Meaning of Information, wherein, the CSI Meaning of Information includes：RI,PMI,CQI,CRI；

CSI quantization granularities, wherein, the CSI quantization granularities include：Broadband, the subband of all size；

Alternatively, CSI types can include with least one Types Below：Broadband RI；Subband RI；T1 best subband RI；Broadband PMI；Subband PMI；T2 best subband PMI；First PMI in broadband；The PMI of broadband the 2nd；The PMI of subband the 2nd；Most First PMI of T3 good subband, the 2nd PMI of best T4 subband；Broadband CQI, subband CQI, T5 best subband CQI；Broadband CRI, subband CRI, T6 best subband CRI, wherein, above-mentioned T1, T2, T3, T4, T5, T6 are positive integer.

Fig. 6 is the structured flowchart of the first determining module 42 in the device that the first CSI according to embodiments of the present invention is reported Two, as shown in fig. 6, first determining module 42 includes the second determining unit 62, second determining unit 62 is said below It is bright：

Second determining unit 62, for determining above-mentioned CSI to be reported according to first condition, second condition and third condition, Wherein, above-mentioned third condition includes at least one of：Terminal capability grade belongs to predetermined set；CSI measures limitation function Do not enable or do not configure CSI measurement limitations；Pre-coding matrix instruction PMI feedbacks are not configured；The transmission mode of configuration belongs to pre- Fixed transmission mode set.

Fig. 7 is the structured flowchart of the second determining unit 62 in the device that the first CSI according to embodiments of the present invention is reported, As shown in fig. 7, second determining unit 62 includes judgment sub-unit 72 and determination subelement 74, below to second determining unit 62 illustrate.

Judgment sub-unit 72, for judging whether while meeting above-mentioned first condition, second condition and third condition；It is determined that Subelement 74, is connected to above-mentioned judgment sub-unit 72, for when judged result is meets simultaneously, determining above-mentioned CSI to be reported In the information content of P class CSI feedback information and the information of the P class CSI feedback information in the CSI that is reported before current time in Hold it is identical, wherein, P class CSI feedback information in the CSI to be reported and P classes CSI in the CSI reported before current time are anti- Feedforward information meets following condition：Corresponding to identical CSI processes, with identical CSI types and CSI reference resources；Or, correspond to Identical CSI processes, with identical CSI types, and CSI reference resources belong to identical subframe collection.

In an optional embodiment, above-mentioned X is determined according at least one following information：The frame structure type of system or The duplex mode of person's system；The ability rating of terminal UE；The number for the CSI processes that UE is supported；Total CSI that UE is handled simultaneously enters The number of journey；Measure limitation arrangement parameter；Pre-coding matrix instruction PMI and/or order designator RI feedback enable configuration；Code book Configuration parameter.

Fig. 8 is the structured flowchart for the device that second of CSI according to embodiments of the present invention is reported, as shown in figure 8, the device Including the second determining module 82, the 3rd determining module 84, the 4th determining module 86 and the second reporting module 88, below to the device Illustrate.

Second determining module 82, for determining that CSI reports the time interval of time-domain position and CSI reference resources time-domain positions Demand parameter N_rpt-refOr the spaced apart condition demand parameter of CSI triggering time-domain positions and CSI reference resources time-domain positions N_trg-ref, wherein, wherein it is determined that above-mentioned N_rpt-refOr N_trg-refIncluding：N is determined according at least one following information_rpt-refOr N_trg-ref：The ability rating of terminal UE, measurement limitation arrangement parameter, pre-coding matrix instruction PMI and/or order designator RI it is anti- Feedback enables configuration, the configuration of subframe collection, the N of base station_rpt-refAnd/or N_trg-refParameter configuration signaling, transmission mode；Or, according to At least one following information determines the N_rpt-refOr N_trg-ref：CSI processes number, the UE that terminal UE is supported are while what is handled is total CSI processes number, the frame structure type of system or the duplex mode of system；3rd determining module 84, is connected to above-mentioned second Determining module 82, for the N according to determination_rpt-refTime-domain position is reported to determine CSI reference resources time-domain positions with CSI, or According to the N of determination_trg-refCSI reference resources time-domain positions are determined with CSI triggering time-domain positions；4th determining module 86, connection To above-mentioned 3rd determining module 84, CSI to be reported is determined for the above-mentioned CSI reference resources time-domain position according to determination；Second Reporting module 88, is connected to above-mentioned 4th determining module 86, for reporting above-mentioned CSI to be reported.

Fig. 9 is the structured flowchart for the device that the third CSI according to embodiments of the present invention is reported, as shown in figure 9, the device Including the 5th determining module 92, the 6th determining module 94 and the 3rd reporting module 96, the device is illustrated below.

5th determining module 92, during for determining that CSI reports time-domain position with CSI triggerings according at least one following information The time interval parameter N of domain position_rpt-trg：The ability rating of terminal UE, measurement limitation arrangement parameter, pre-coding matrix instruction PMI and/or order designator RI feedback enables configuration, the configuration of feedback classification, configuration (total port of codebook configuration parameter, pilot tone Number and/or pilot tone tricks), the configuration of subframe collection, the N of base station_rpt-trgParameter configuration signaling, UE support CSI processes number, UE is while total CSI processes number, the transmission mode of processing；6th determining module 94, is connected to above-mentioned 5th determining module 92, For the above-mentioned N according to determination_rpt-trgAnd CSI triggering time-domain positions determine that CSI reports time-domain position；3rd reporting module 96, Be connected to above-mentioned 6th determining module 94, for it is determined that above-mentioned CSI report time-domain position to report CSI to be reported.

It should be noted that above-mentioned modules can be by software or hardware to realize, for the latter, Ke Yitong Cross in the following manner realization, but not limited to this：Above-mentioned module is respectively positioned in same processor；Or, above-mentioned module is located at many respectively In individual processor.

Embodiments of the invention additionally provide a kind of storage medium.Alternatively, in the present embodiment, above-mentioned storage medium can The program code for performing following steps to be arranged to storage to be used for：

S11, CSI to be reported is determined according to first condition and second condition, wherein, the CSI to be reported includes M classes CSI；

S12, reports the CSI to be reported of determination.

Alternatively, above-mentioned storage medium may be also configured to the program code that storage is used to perform following steps：

S21, determines that CSI reports the time interval demand parameter N of time-domain position and CSI reference resources time-domain positions_rpt-ref Or the spaced apart condition demand parameter N of CSI triggering time-domain positions and CSI reference resources time-domain positions_trg-ref；

S22, according to the N of determination_rpt-refTime-domain position is reported to determine CSI reference resources time-domain positions with CSI, or according to The N of determination_trg-refCSI reference resources time-domain positions are determined with CSI triggering time-domain positions；

S23, CSI to be reported is determined according to the above-mentioned CSI reference resources time-domain position of determination；

S24, reports above-mentioned CSI to be reported.

Alternatively, above-mentioned storage medium may be also configured to the program code that storage is used to perform following steps：

S31, between the time that time-domain position and CSI triggering time-domain positions are reported according at least one following information determination CSI Every parameter N_rpt-trg：Ability rating, measurement limitation arrangement parameter, pre-coding matrix instruction PMI and/or the order designator of terminal UE RI feedback enables configuration, the configuration of feedback classification, configuration (total port number and/or the set of pilot tone of codebook configuration parameter, pilot tone Number), the configuration of subframe collection, the N of base station_rpt-trgCSI processes number, the UE that parameter configuration signaling, UE are supported are while what is handled is total CSI processes number, transmission mode；

S32, according to the above-mentioned N of determination_rpt-trgAnd CSI triggering time-domain positions determine that CSI reports time-domain position；

S33, it is determined that above-mentioned CSI report time-domain position to report CSI to be reported.

Alternatively, in the present embodiment, above-mentioned storage medium can include but is not limited to：USB flash disk, read-only storage (Read- Only Memory, referred to as ROM), it is random access memory (Random Access Memory, referred to as RAM), mobile hard Disk, magnetic disc or CD etc. are various can be with the medium of store program codes.

Alternatively, in the present embodiment, processor performs the above method according to the program code stored in storage medium Step in embodiment.

Alternatively, the specific example in the present embodiment may be referred to described in above-described embodiment and optional embodiment Example, the present embodiment will not be repeated here.

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, it is thus possible to they are stored Performed in the storage device by computing device, and in some cases, can be shown to be performed different from order herein The step of going out or describe, they are either fabricated to each integrated circuit modules respectively or by multiple modules in them or Step is fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific hardware and software combination.

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, improvement etc., should be included within the scope of the present invention.

Claims (12)

1. a kind of method that channel condition information CSI is reported, it is characterised in that including：

CSI to be reported is determined according to first condition and second condition, wherein, the CSI to be reported includes M classes CSI；

Report the CSI to be reported of determination；

Wherein：

The first condition includes at least one of：

The feedback classification configured for current CSI processes is Class B, and is configured with K set pilot tones, wherein, K>K_B, K_BFor positive integer；

The feedback classification configured for current CSI processes is Class B, and total port number N of configuration_total≥N_totalB, wherein, N_totalBFor the integer more than or equal to 8；

The feedback kind configured for current CSI processes is Class A, and total port number N of configuration_total≥N_totalA, wherein, N_totalAFor the integer more than or equal to 8；And/or,

The second condition includes at least one of：

In X ms, belonged to the P class CSI feedbacks information of identical CSI processes it is reported that and/or it is updated once, wherein, the X For positive integer, the P classes CSI feedback information is the subset of the M classes CSI, 1≤P≤M；

In X ms, belong to identical CSI processes, and CSI reference resources belong to the P class CSI feedback information of identical subframe collection and reported Accuse and/or it is updated once, wherein, the X be positive integer, the P classes CSI feedback information be the M classes CSI subset, 1≤ P≤M。

2. according to the method described in claim 1, it is characterised in that

X >=5；And/or,

The subframe collection is what is determined with base station by way of agreement, or determined by way of base station is configured.

3. according to the method described in claim 1, it is characterised in that institute is determined according to the first condition and the second condition Stating CSI to be reported includes：

Judge whether while meeting the first condition and the second condition；

When judged result is meets simultaneously, the information content of the P classes CSI feedback information in the CSI to be reported is determined It is identical with the information content of the P class CSI feedback information in the CSI reported before current time, wherein, in the CSI to be reported The P classes CSI feedback information and the current time before P class CSI feedback information in the CSI that reports meet following bar Part：

Corresponding to identical CSI processes, with identical CSI types and CSI reference resources；Or,

Corresponding to identical CSI processes, with identical CSI types, and CSI reference resources belong to identical subframe collection.

4. according to the method described in claim 1, it is characterised in that the type of the CSI to be reported is according to the CSI to be reported Meaning of Information and the quantization granularities of the CSI to be reported determine, wherein, the type of the CSI include with Types Below at least it One：

Broadband RI；Subband RI；T1 best subband RI；Broadband PMI；Subband PMI；T2 best subband PMI；The of broadband One PMI；The PMI of broadband the 2nd；The PMI of subband the 2nd；First PMI of T3 best subband, the second of best T4 subband PMI；Broadband CQI, subband CQI, T5 best subband CQI；Broadband CRI, subband CRI, T6 best subband CRI, wherein, Described T1, T2, T3, T4, T5, T6 are positive integer.

5. according to the method described in claim 1, it is characterised in that institute is determined according to the first condition and the second condition Stating CSI to be reported includes：

The CSI to be reported is determined according to the first condition, the second condition and third condition, wherein, the Article 3 Part includes at least one of：

Terminal capability grade belongs to predetermined set；

CSI measurement limitation functions do not enable or not configured CSI measurement limitations；

Pre-coding matrix instruction PMI feedbacks are not configured；

The transmission mode of configuration belongs to predetermined transmission mode set.

6. method according to claim 5, it is characterised in that according to the first condition, the second condition and described Third condition determines that the CSI to be reported includes：

Judge whether while meeting the first condition, the second condition and the third condition；

When judged result is meets simultaneously, the information content of the P classes CSI feedback information in the CSI to be reported is determined It is identical with the information content of the P class CSI feedback information in the CSI reported before current time, wherein, in the CSI to be reported The P classes CSI feedback information and the current time before P class CSI feedback information in the CSI that reports meet following bar Part：

Corresponding to identical CSI processes, with identical CSI types and CSI reference resources；Or,

Corresponding to identical CSI processes, with identical CSI types, and CSI reference resources belong to identical subframe collection.

7. method according to any one of claim 1 to 6, it is characterised in that the X is according at least one following information It is determined that：

The frame structure type or the duplex mode of system of system；

The ability rating of terminal UE；

The number for the CSI processes that UE is supported；

The number for total CSI processes that UE is handled simultaneously；

Measure limitation arrangement parameter；

Pre-coding matrix instruction PMI and/or order designator RI feedback enable configuration；

The configuration parameter of code book.

8. a kind of method that channel condition information CSI is reported, it is characterised in that including：

Determine that CSI reports the time interval demand parameter N of time-domain position and CSI reference resources time-domain positions_rpt-refOr CSI is touched Send out the spaced apart condition demand parameter N of time-domain position and CSI reference resources time-domain positions_trg-ref, wherein it is determined that the N_rpt-refOr N_trg-refIncluding：

The N is determined according at least one following information_rpt-refOr N_trg-ref：The ability rating of terminal UE, measurement limitation arrangement ginseng The feedback of number, pre-coding matrix instruction PMI and/or order designator RI enables configuration, the configuration of subframe collection, the N of base station_rpt-ref And/or N_trg-refParameter configuration signaling, transmission mode；Or,

The N is determined according at least one following information_rpt-refOr N_trg-ref：Terminal UE support CSI processes number, UE simultaneously Total CSI processes number, the frame structure type of system or the duplex mode of system of processing；

According to the N of determination_rpt-refTime-domain position is reported to determine the CSI reference resources time-domain position with the CSI, or According to the N of determination_trg-refThe CSI reference resources time-domain position is determined with CSI triggering time-domain positions；

CSI to be reported is determined according to the CSI reference resources time-domain position of determination；

Report the CSI to be reported.

9. a kind of method that channel condition information CSI is reported, it is characterised in that including：

The time interval parameter that CSI reports time-domain position to trigger time-domain position with CSI is determined according at least one following information N_rpt-trg：The ability rating of terminal UE, measurement limitation arrangement parameter, pre-coding matrix instruction PMI and/or order designator RI it is anti- Feedback enables configuration, the configuration of feedback classification, codebook configuration parameter, the configuration of pilot tone, the configuration of subframe collection, the N of base station_rpt-trgParameter CSI processes number, the UE that configuration signal, UE are supported are while total CSI processes number, the transmission mode of processing；

According to the N of determination_rpt-trgAnd the CSI triggerings time-domain position determines that the CSI reports time-domain position；

It is determined that the CSI report time-domain position to report CSI to be reported.

10. the device that a kind of channel condition information CSI is reported, it is characterised in that including：

First determining module, for determining CSI to be reported according to first condition and second condition, wherein, the CSI bags to be reported Include M classes CSI；

First reporting module, the CSI to be reported for reporting determination；

Wherein：

The first condition includes at least one of：

The feedback classification configured for current CSI processes is Class B, and is configured with K set pilot tones, wherein, K>K_B, K_BFor positive integer；

The feedback classification configured for current CSI processes is Class B, and total port number N of configuration_total≥N_totalB, wherein, N_totalBFor the integer more than or equal to 8；

The feedback kind configured for current CSI processes is Class A, and total port number N of configuration_total≥N_totalA, wherein, N_totalAFor the integer more than or equal to 8；And/or,

The second condition includes at least one of：

In X ms, belonged to the P class CSI feedbacks information of identical CSI processes it is reported that and/or it is updated once, wherein, the X For positive integer, the P classes CSI feedback information is the subset of the M classes CSI, 1≤P≤M；

In X ms, belong to identical CSI processes, and CSI reference resources belong to the P class CSI feedback information of identical subframe collection and reported Accuse and/or it is updated once, wherein, the X be positive integer, the P classes CSI feedback information be the M classes CSI subset, 1≤ P≤M。

11. the device that a kind of channel condition information CSI is reported, it is characterised in that including：

Second determining module, for determining that CSI reports the time interval demand of time-domain position and CSI reference resources time-domain positions to join Number N_rpt-refOr the spaced apart condition demand parameter N of CSI triggering time-domain positions and CSI reference resources time-domain positions_trg-ref, wherein, Determine the N_rpt-refOr N_trg-refIncluding：

The N is determined according at least one following information_rpt-refOr N_trg-ref：The ability rating of terminal UE, measurement limitation arrangement ginseng The feedback of number, pre-coding matrix instruction PMI and/or order designator RI enables configuration, the configuration of subframe collection, the N of base station_rpt-ref And/or N_trg-refParameter configuration signaling, transmission mode；Or,

The N is determined according at least one following information_rpt-refOr N_trg-ref：Terminal UE support CSI processes number, UE simultaneously Total CSI processes number, the frame structure type of system or the duplex mode of system of processing；

3rd determining module, for the N according to determination_rpt-refTime-domain position is reported to determine the CSI references with the CSI Resource time-domain position, or according to the N of determination_trg-refThe CSI reference resources are determined with CSI triggering time-domain positions Time-domain position；

4th determining module, CSI to be reported is determined for the CSI reference resources time-domain position according to determination；

Second reporting module, for reporting the CSI to be reported.

12. the device that a kind of channel condition information CSI is reported, it is characterised in that including：

5th determining module, for determining that CSI reports time-domain position to trigger time-domain position with CSI according at least one following information Time interval parameter N_rpt-trg：The ability rating of terminal UE, measurement limitation arrangement parameter, pre-coding matrix instruction PMI and/or Order designator RI feedback enables configuration, the configuration of feedback classification, codebook configuration parameter, the configuration of pilot tone, the configuration of subframe collection, base The N stood_rpt-trgCSI processes number, the UE that parameter configuration signaling, UE are supported are while total CSI processes number, the transmission mould of processing Formula；

6th determining module, for the N according to determination_rpt-trgAnd the CSI triggerings time-domain position determines that the CSI is reported Time-domain position；

3rd reporting module, for it is determined that the CSI report time-domain position to report CSI to be reported.