CN105610542A - Channel state information report method and device - Google Patents

Abstract

The invention discloses a channel state information (CSI) report method comprising the following steps: first, UE acquires the configuration of CSI report corresponding to two-dimensional antenna configuration; then, the UE determines a CSI report method according to the configuration of CSI report; and finally, the UE reports CSI according to the CSI report method. The invention further provides a CSI report device. By applying the technical scheme disclosed by the invention, a CQI fed back by UE can be consistent with the characteristics of an actual channel, and the system performance is optimized.

Description

The method of channel status information reports and device

Technical field

The present invention relates to wireless communication technology field, particularly the channel status in multi-aerial radio communication systemThe method of information reporting and device.

Background technology

In advanced long-term evolution system (LTE-A, LongTermEvolutionAdvanced), the cycleChannel status information reports comprises: broadband (Wideband) CQI feedback kind and UE select (UESelected)Subband (Subband) CQI feedback kind, as shown in table 1. Concrete which kind of channel condition information of employing (CSI,ChannelStateInformation) feedback kind is configured by high-level signaling. CSI comprise channel quality instruction (CQI,Channelqualityindicator), pre-coding matrix instruction (PMI, PrecodingMatrixIndicator),Precoding type instruction (PTI, PrecodingTypeIndicator) and order instruction (RI, RankIndicator).

Table 1: cycle CQI and PMI feedback kind

For the UE of the S of CSIR that has configured 8 ports, PMI is pre-by dicode book (Doublecodebook)Encoder matrix instruction composition, by the i that represents the long pre-coding matrix instruction in broadband₁(PMI) and generationThe pre-coding matrix instruction i of table subband short time₂Two pre-coding matrixes that (the 2nd PMI) indicates jointly closeBecome. For the UE of the S of CSIR that has configured 4 ports, high-level signaling(alternativeCodeBookEnabledFor4TX-r12) configuration UE works in dicode book feedback or solid size book(Singlecodebook) feedback, if alternativeCodeBookEnabledFor4TX-r12 is true (True),UE works in dicode book PMI feedback, otherwise UE works in solid size book PMI feedback.

Select subband CQI feedback kind for UE, the CQI reporting in some subframes according to Serving cell isCommand that the channel quality of an optimum subband in a part of bandwidth on wide draws, in system bandwidth onePoint bandwidth is called portions of bandwidth (BP, BandwidthPart) here, and BP is made up of one or more subbands.The CQI reporting in other subframes obtains according to the channel quality in all subbands in Serving cell system bandwidthGo out.

For a Serving cell:

If system bandwidth isResource Block (RB, ResourceBlock), has N subband, subband sizeFor k, Qi ZhongyouThe bandwidth of individual subband is k RB, ifWherein,There is the size of a subband to beIndividual RB.Under representative, round,In representative, round.

BPj is by N_jIndividual subband composition continuous on frequency domain, comprises J BP, different system band in system bandwidthThe number of the wide BP comprising, and subband size situation is shown in Table 2.

Table 2: the subband size (k) that different system bandwidth is corresponding and BP number (J)

Select subband CQI feedback kind for UE, the N of each UE from BPj_jIn individual subband, select oneSubband carries out CQI and/or PMI feedback.

Report for configuration broadband CQI/ broadband P MI and subband CQI/ subband PMI:

● meeting formulaIn the subframe of condition, report broadband CQI/Broadband P MI and subband CQI/ subband PMI, wherein N_pdCQI reporting period, N_OFFSET,CQIBe in time domain partiallyThe value of moving.

■ equals 1 or while not transmitting PTI (owing to not configuring PTI transmission) as the PTI transmitting recently:

The cycle of ■ broadband CQI/ broadband P MI report (or CQI/ broadband, broadband the 2nd PMI) isH·N_pd, meeting formulaSubframe reportAccuse. Integer H is defined as H=JK+1, and wherein, J is the BP number in system bandwidth, and K is believed by high levelOrder configuration.

■ is between two continuous broadband CQI/ broadband P MI reports, and remaining JK moment usedReport in order subband CQI (or subband CQI/UE selects the 2nd PMI of subband).

■ can be by the PMI of broadband part referred to as " broadband P MI ", by the PMI of subband partBe called " subband PMI ".

■ is in the time that the PTI transmitting recently equals 0:

The cycle of ■ broadband the one PMI report is H ' N_pd, formula below meeting:

Subframe report broadband the one PMI. Wherein,H ' is configured by high-level signaling.

■ between the one PMI report of two continuous broadbands, remaining H '-1 moment be used for byOrder reports CQI/ broadband, broadband the 2nd PMI.

● if configured RI report, be M the reporting period of RI_RI·H·N_pd, formula below meeting:

Subframe report RI, or report RI andPTI, wherein, M_RIThat RI compares the CQI multiple of reporting period, N reporting period_OFFSET,RIThe relative of RI reportTime migration. The RI is here called cycle RI.

● select subband feedback kind for UE:

Zero pattern 2-1:

■ is except configuring the S of CSIR of 8 ports and the UE of transmission mode 9,10, and except joiningPut the S of CSIR of 4 ports, configured transmission mode 8,9,10 and high-level signaling(alternativeCodeBookEnabledFor4TX-r12) be genuine UE, the subframe at report RI:

● UE report one-period RI, RI is according in the system bandwidth of Serving cellThe channel situation of all subbands calculates.

■ is for the configuration S of CSIR of 8 ports and the UE of transmission mode 9,10, and configuredThe S of CSIR of 4 ports, has configured transmission mode 8,9,10 and high-level signalingAlternativeCodeBookEnabledFor4TX-r12 is genuine UE, the subframe at report RI:

● UE report one-period RI and PTI, RI is the system band according to Serving cellThe channel situation of all subbands in wide calculates.

■ is except configuring the S of CSIR of 8 ports and the UE of transmission mode 9,10, and except joiningPut the S of CSIR of 4 ports, configured transmission mode 8,9,10 and high-level signalingAlternativeCodeBookEnabledFor4TX-r12 is genuine UE, at report broadband CQI/PMISubframe:

● according to the situation of all S subbands in system bandwidth, from code book subset, selectSelect a broadband pre-coding matrix. The selection of this broadband pre-coding matrix is to adopt in hypothesisIn situation with the cycle RI of nearest report, draw.

● suppose to use the cycle RI of report recently and the broadband precoding of selecting aboveIn the situation of matrix, according to the situation of all S subbands in system bandwidth, calculateBroadband CQI.

● UE needs report:

The indicated value PMI of the zero broadband pre-coding matrix of selecting above;

The zero broadband CQI obtaining according to PMI above.

■ is except configuring the S of CSIR of 8 ports and the UE of transmission mode 9,10, and except joiningThe S of CSIR that has put 4 ports has configured transmission mode 8,9,10 and high-level signalingAlternativeCodeBookEnabledFor4TX-r12 is genuine UE, and in report, UE selects subbandThe subframe of CQI:

● the N of UE from BPj_jIn individual subband, select a subband. This subbandSelection is to adopt the cycle RI of report recently and the precoding of broadband P MI instruction in hypothesisUnder the condition of matrix, obtain.

● according to the situation of the subband of selecting, calculate subband CQI above. This heightTo adopt the cycle RI of report recently and prelisting of broadband P MI instruction in hypothesis with CQIUnder the condition of code matrix, obtain.

● UE needs report:

Zero subband CQI.

■ is for the configuration S of CSIR of 8 ports and the UE of transmission mode 9,10, and configuredThe S of CSIR of 4 ports has configured transmission mode 8,9,10 and high-level signalingAlternativeCodeBookEnabledFor4TX-r12 is genuine UE, if the PTI reporting recentlyEqual 0, the subframe at report broadband the one PMI:

● according to the situation of all S subbands in system bandwidth, from code book subset, selectSelect a first broadband pre-coding matrix.

● the first broadband pre-coding matrix is above according to the cycle RI bar of reporting aboveUnder part, calculate.

● report broadband the one PMI, this PMI is select above first wideWith the PMI of pre-coding matrix.

■ configures the S of CSIR of 8 ports and the UE of transmission mode 9,10, and has configured 4The S of CSIR of port has configured transmission mode 8,9,10 and high-level signalingAlternativeCodeBookEnabledFor4TX-r12 is genuine UE, if the PTI reporting recentlyEqual 0, the subframe at report CQI/ broadband, broadband the 2nd PMI:

● according to the situation of all S subbands in system bandwidth, from code book subset, selectSelect a second broadband pre-coding matrix.

● the second broadband pre-coding matrix is above to adopt the week of report recently in hypothesisUnder phase RI and the first broadband pre-coding matrix condition, calculate.

● according to the situation of all S subbands in system bandwidth, calculate broadbandCQI. This broadband CQI adopts the cycle RI of report recently in hypothesis, and first is wideCalculate with pre-coding matrix and under the second broadband pre-coding matrix condition of calculating aboveObtain.

● UE needs report:

Zero broadband calculating above the 2nd PMI.

The zero broadband CQI calculating above.

■ configures the S of CSIR of 8 ports and the UE of transmission mode 9,10, and has configured 4The S of CSIR of port has configured transmission mode 8,9,10 and high-level signalingAlternativeCodeBookEnabledFor4TX-r12 is genuine UE. If the PTI of report recentlyEqual 1, the subframe at report CQI/ broadband, broadband the 2nd PMI:

● according to the situation of all S subbands in system bandwidth, from code book subset, selectSelect a second broadband pre-coding matrix.

● the second broadband pre-coding matrix is above to adopt the week of report recently in hypothesisUnder phase RI and the first broadband pre-coding matrix condition, calculate.

● according to the situation of all S subbands in system bandwidth, calculate broadbandCQI. This broadband CQI adopts the cycle RI of report recently in hypothesis, and first is wideCalculate with pre-coding matrix and under the second broadband pre-coding matrix condition of calculating aboveObtain.

● UE needs report:

Zero broadband calculating above the 2nd PMI,

The zero broadband CQI calculating above.

■ is for the configuration S of CSIR of 8 ports and the UE of transmission mode 9,10, and configuredThe S of CSIR of 4 ports has configured transmission mode 8,9,10 and high-level signalingAlternativeCodeBookEnabledFor4TX-r12 is genuine UE, if the PTI reporting recentlyEqual 1, the subframe at report subband CQI/ subband the 2nd PMI:

● at the N of BPj_jIn individual subband, select best subband.

● suppose to adopt cycle RI and the first broadband pre-coding matrix of report recently,Calculate subband the second pre-coding matrix. This subband second pre-coding matrix is basisThe N of BPj above_jUnder the channel situation of the best subband of selecting in individual subband, obtain.

● according to the N of BPj above_jThe channel of the best subband of selecting in individual subbandIn situation, calculate subband CQI. This subband CQI adopts report recently in hypothesisThe cycle RI accusing, the first broadband pre-coding matrix and the subband second calculating are above pre-Under encoder matrix condition, calculate.

● UE will report:

The subband of zero subband of selecting above the 2nd PMI;

The zero subband CQI calculating above.

In LTE-A system, as shown in Figure 1, antenna array is horizontal distribution, and the port of antenna is all levelDistribute, adopt one dimension antenna array, i.e. horizontal antenna battle array, beam forming points to the different directions angle of horizontal plane,Can reduce the interference between the terminal in varying level deflection. But in fact, because terminal may beThe residing position of vertical direction is different and different from the distance of base station, thereby the deflection on vertical plane is not yetThe same. As shown in Figure 2, adopt Bidimensional antenne array, i.e. horizontal antenna battle array and vertical antenna battle array, by verticallyBeam forming on beam forming and horizontal plane on face, further reduces the end in different vertical deflectionInterference between interference between end and the terminal in varying level deflection, thus can further improveThe handling capacity of community, as shown in Figure 3.

Owing to adopting Bidimensional antenne array, need two cover pre-coding matrixes to do beam forming in horizontal and vertical direction,UE need to feed back two cover PMI; Then in the situation that hypothesis adopts this two cover PMI, draw synthetic CQI,Report. Adopt the CQI feedback kind of dicode book pre-coding matrix for configuration UE, for example, in patternWhen 2-1, if the PTI of report equals 1 recently, in the subframe of report subband the 2nd PMI, at the N of BPj_jIn individual subband, select best subband, then report the 2nd PMI of this subband. Suppose at same BPj, forHorizontal direction PMI and vertical direction PMI are at N_jIn individual subband, select best subband, selection result may be notThe same, and CQI will draw according to two PMI, these two PMI are different sub-bands, cannot drawThe CQI of the subband of joining. For example,, in BPj, for horizontal direction PMI, N_jBest subband in individual subbandSubband m, for vertical direction PMI, N_jIn individual subband, best subband is subband n, if so according to sonObtain the subband PMI of horizontal direction with m, the subband PMI that obtains vertical direction according to subband n, obtains subbandThe CQI of m is as the subband CQI of this BPj, and the PMI of vertical direction is unmatched, because vertical directionN_jIn individual subband, best subband is subband n, and the vertical PMI of report is for subband n, as Fig. 4 instituteShow. Therefore need a method, the subband PMI of horizontal direction and the subband PMI of vertical direction mated,And two cover PMIs synthetic the obtain CQI of use in the bandwidth of coupling.

Summary of the invention

Object of the present invention is intended at least solve one of above-mentioned technological deficiency, provides a kind of multi-antenna wireless communication to beThe method of the channel status information reports in system and device, so that the CQI of UE feedback and the characteristic of actual channelUnanimously, thus optimization system performance.

The method of a kind of channel status information reports that the application provides, comprising:

User equipment (UE) obtains the configuration corresponding to the channel condition information CSI report of two-dimensional antenna configuration;

UE determines the method for CSI report according to the configuration of CSI report;

UE is according to the method report CSI of described CSI report.

Preferably, the configuration of the described report of the CSI corresponding to two-dimensional antenna configuration comprises: the pattern of CSI report,The CSI reference signal RS port number of every dimension antenna, cycle and the time migration of CSI report.

Preferably, the method for described CSI report comprises: report two cover pre-coding matrix instruction PMI feedbacks andCover channel quality indicator (CQI) feedback, and described CQI feedback is synthetic based on described two cover PMI feedbacks.

Preferably, described report two is overlapped PMI feedback and a set of CQI is fed back to: report two cover broadband P MI feed backWith a set of subband CQI feedback, and, a set of order instruction RI reported.

Preferably, described UE comprises according to the method report CSI of described CSI report:

Cycle based on P1 and time migration determine that cycle of RI feedback and time migration and subband CQI are anti-Cycle and the time migration of feedback;

Based on the P2 of nearest feedback, draw RI according to the channel situation of all subbands in system bandwidth;

P2 based on nearest feedback and RI, draw P1 according to the channel situation of all subbands in system bandwidth;

RI, P1 and P2 based on nearest feedback, draw wide according to the channel situation of all subbands in system bandwidthBand CQI;

RI, P1 and the P2 of the feedback based on nearest, select in the subband of the Nj according to UE from BPjThe channel situation of good subband draws subband CQI;

Wherein, P1 and P2 represent respectively described two cover broadband P MI feedbacks;

BPj is made up of individual subband continuous on frequency domain.

Preferably, described report two is overlapped PMI feedback and a set of CQI is fed back to: report a set of broadband P MI feed back,A set of UE selects subband PMI feedback and a set of subband CQI feedback, and, report a set of order instruction RI;

Wherein, the cycle of the cycle of RI feedback and time migration and subband CQI feedback and time migration based onCycle and the time migration of wherein a set of PMI feedback of described two cover PMI feedbacks are determined.

Preferably, described UE comprises according to the method report CSI of described CSI report:

Cycle based on P1 and time migration determine that cycle of RI feedback and time migration and subband CQI are anti-Cycle and the time migration of feedback;

Based on the P2 of nearest feedback, draw RI according to the channel situation of all subbands in system bandwidth;

P2 based on nearest feedback and RI, show that according to the channel situation of all subbands in system bandwidth P1's is wideBand portion;

Broadband part and the P2 of RI, P1 based on nearest feedback, according to the channel of all subbands in system bandwidthSituation draws broadband CQI;

Broadband part and the P2 of RI, P1 based on nearest feedback, in the subband of the Nj according to UE from BPjThe channel situation of the best subband of selecting draws the subband part of P1;

Subband part and the P2 of RI, the P1 of the feedback based on nearest, the subband of the Nj according to UE from BPjIn the channel situation of the best subband selected draw subband CQI;

Wherein, P1 represents that described UE selects subband PMI feedback, and P2 represents described broadband P MI feedback;

BPj is made up of individual subband continuous on frequency domain.

Preferably, being configured by high-level signaling is that a set of broadband P MI feeds back by described two cover PMI feedback configuration respectivelySelect subband PMI feedback with a set of UE;

Or, be fed back to UE for the PMI of horizontal antenna battle array and select subband PMI feedback, for vertical antennaThe PMI of battle array is fed back to broadband P MI feedback;

Or, be fed back to UE for the PMI of dicode book and select subband PMI feedback, for the PMI of solid size bookBe fed back to broadband P MI feedback.

Preferably, described report two is overlapped PMI feedback and a set of CQI is fed back to: report a set of UE selection subbandPMI feedback, a set of BPPMI feedback and a set of subband CQI feedback, and, a set of order instruction RI reported;

Wherein, BPPMI feedback refers to that UE is according to the channel feelings of all subbands in a BP in system bandwidthCondition is selected a pre-coding matrix from code book set; Cycle and time migration and the subband CQI of RI feedbackThe cycle of feedback and time migration wherein cycle and the time of a set of PMI feedback based on described two cover PMI feedbacksSkew is determined.

Preferably, being configured by high-level signaling is that a set of UE selects subband by described two cover PMI feedback configuration respectivelyPMI feedback and a set of BPPMI feedback;

Or, be fed back to UE for the PMI of horizontal antenna battle array and select subband PMI feedback, for vertical antennaThe PMI of battle array is fed back to BPPMI feedback;

Or, be fed back to UE for the PMI of dicode book and select subband PMI feedback, for the PMI of solid size bookBe fed back to BPPMI feedback.

Preferably, described wherein a set of PMI is fed back to for the PMI feedback of horizontal antenna battle array, for dicode basisPMI feedback or UE select subband PMI feedback.

Preferably, described report two is overlapped PMI feedback and a set of CQI is fed back to: report two cover UE selection subbandsPMI feedback and a set of subband CQI feedback;

Wherein, described two cover UE select the cycle of subband PMI feedback identical with time migration, at a BPIn, UE selects a subband that CQI value is maximum according to the situation of two cover PMI, using corresponding PMI as needThe two cover UE that report select subband PMI.

Preferably, the cycle of described two cover PMI feedbacks is different with time migration, according to the configuration of high-level signaling orPerson, according to the characteristic of described two cover broadband P MI feedbacks, determines cycle and time migration and the subband of RI feedbackThe cycle of CQI feedback and time migration institute based on PMI cycle and the time migration of feeding back;

Or the cycle of described two cover PMI feedbacks is identical with time migration.

Preferably, in the time that described two cover PMI feedbacks all adopt dicode book, or, when described two cover PMI feedbacksOne of them adopt dicode book, when another adopts solid size book, or, when described two cover PMI feedbacks are all adoptedDuring with solid size book, adopt the method for described CSI report.

Preferably, in the time that described two cover PMI feedbacks all adopt dicode book, or, when described two cover PMI feedbacksOne of them adopt dicode book, when another adopts solid size book, adopt the method for described CSI report.

Preferably, in the time that described two cover PMI feedbacks all adopt dicode book, adopt the method for described CSI report.

The application also provides a kind of device of channel status information reports, comprising: configuration information acquisition module,Method for reporting determination module and reporting modules, wherein:

Described configuration information acquisition module, for obtaining the configuration corresponding to the CSI report of two-dimensional antenna configuration;

Described method for reporting determination module, for determining the method for CSI report according to the configuration of CSI report;

Described reporting modules, for the method report CSI according to described CSI report.

The such scheme that the present invention proposes, makes CSI feedback more accurate, can improve PDSCH demodulation performance, fromAnd the handling capacity of raising downlink business.

Brief description of the drawings

Fig. 1 is horizontal antenna submatrix antenna distribution schematic diagram;

Fig. 2 is two-dimensional antenna submatrix antenna distribution schematic diagram;

Fig. 3 is the beam direction distribution schematic diagram that two-dimensional antenna submatrix produces;

Fig. 4 is the subband schematic diagram different from the subband of vertical direction PMI optimum of horizontal direction PMI optimum;

Fig. 5 is the flow chart of embodiment of the present invention CSI method for reporting;

Fig. 6 is the composition structural representation of embodiment of the present invention CSI annunciator.

Detailed description of the invention

For making the application's object, technical scheme and advantage clearer, referring to the accompanying drawing enforcement that develops simultaneouslyExample, is described in further detail the application.

The present invention is mainly the frequency band coupling by the frequency band of horizontal direction PMI and vertical direction PMI, makes feedbackCQI consistent with the characteristic of actual channel, thereby improve systematic function.

Fig. 5 is the flow chart of the CSI method for reporting of the embodiment of the present invention. As shown in Figure 5, comprise the following steps:

Step 501:UE obtains the configuration corresponding to the CSI report of two-dimensional antenna configuration;

The configuration of the described CSI report corresponding to two-dimensional antenna configuration comprises pattern, every dimension sky of CSI reportThe S of CSIR port number of line, cycle and the time migration of CSI report.

Step 502:UE determines the method for CSI report according to the configuration of CSI report;

Step 503:UE is according to the method report CSI of definite CSI report.

Below by specific embodiment, the application's specific implementation is described in detail.

In the time that the CSI of UE report is the working method of two-dimensional antenna, when UE disposes two cover PMI feedbacksTime, UE determines that the method for every cover PMI feedback system is:

Method one:

The UE of UE configuration select subband CQI feedback kind for be that two cover PMI feedbacks and a set of CQI are anti-Feedback, this set of CQI is a synthetic CQI who draws based on two cover PMI. For example, a set of PMI is levelThe PMI of component, a set of PMI is the PMI of vertical component, based on the PMI of vertical component and horizontal component, meterCalculate a synthetic overall CQI of bidimensional component. And in this configuration, may there be following four kinds of feedback form:

Two cover broadband P MI feedbacks, a set of subband CQI feedback;

Or a set of broadband P MI feedback, a set of subband PMI feedback, a set of subband CQI feedback;

Or a set of UE selects subband PMI feedback, a set of BPPMI feedback, a set of subband CQI feedback;

Or two cover UE select subband PMI feedback, a set of subband CQI feedback.

Described subband CQI calculates in the situation that hypothesis has adopted two cover PMI. Retouch respectively belowState three kinds of feedback form above.

One: two cover broadband P MI feedback of feedback form, a set of subband CQI feedback

Under this feedback form, two cover PMI are broadband P MI feedbacks. I.e. every in this two covers PMI feedbackA set of, UE only feeds back broadband P MI in the moment of any feedback PMI, that is to say according to the institute in system bandwidthThere is the channel situation of S subband, from code book set, select a pre-coding matrix. The PMI in every cover broadband is anti-Feedback may be the PMI feedback of solid size book, may be also the PMI feedback of dicode book. Every cover broadband P MI feedbackCycle N_pdWith time migration N_offsetBy high-level signaling separate configurations. Suppose a set of PMI feedback wherein cycle andTime migration is respectively N1_pdAnd N1_offset, this cover PMI feedback is designated as P1; The week of a set of PMI feedback in additionPhase and time migration are respectively N2_pdAnd N2_offset, this cover PMI feedback is designated as P2.

Under this feedback form, only have a set of subband CQI feedback, and only have a set of RI feedback, the feedback of RICycle and time migration, and cycle and time migration that subband CQI feeds back are based on above-mentioned two cover broadband P MIThe cycle of wherein a set of broadband P MI feedback of feedback and time migration are determined. For example, the feedback cycle of RI andTime migration, and the cycle of subband CQI feedback and time migration are that this cover PMI based on being designated as P1 is anti-Feedback is determined, be that is to say: the feedback cycle of RI and time migration, and the cycle of subband CQI feedback and timeBetween skew be cycle and the time migration N1 based on described PMI feedback_pdAnd N1_offsetDetermine, that is:

Meeting formulaSubframe on report CQI/ broadband, broadbandPMI or subband CQI;

Meeting formulaSubframe reportAccuse RI, N_OFFSET,RIThat RI is reported in the deviant in time domain, M_RIThat RI compares CQI report week reporting periodThe multiple of phase.

RI is the P2 based on nearest feedback, draws according to the channel situation of all subbands in system bandwidth. P1The calculating of this cover broadband P MI is this cover broadband P MI of P2 based on nearest feedback and the RI feeding back recently, rootDraw according to the channel situation of all subbands in system bandwidth. Broadband CQI is RI based on nearest feedback andThis two covers broadband P of P1, the P2 of nearly feedback MI, draws according to the channel situation of all subbands in system bandwidth.Subband CQI is the RI of the feedback based on nearest and this two covers broadband P of P1, the P2 of nearest feedback MI, according toThe N of UE from BPj_jThe channel situation of the best subband of selecting in individual subband draws.

The cycle N2 of another set of broadband P MI feedback_pdWith time migration N2_offsetConfigured separately by high-level signaling, that is,Meeting formulaSubframe on report broadband P MI, this overlaps broadbandPMI is according to the channel situation of all subbands in system bandwidth, from the precoding code for this cover broadband P MI configurationSuitable pre-coding matrix of middle selection is closed in book fair. For example,, from the precoding code book set of vertical antenna directionSuitable pre-coding matrix of middle selection.

According to foregoing description, need to determine the cycle of RI and subband CQI feedback based on two cover PMI feedbacks and timeBetween which cover in skew, for this reason, the present embodiment provides the following method of determining:

One method is that the cycle of high-level signaling configuration RI and subband CQI feedback and time migration are based on two coversA set of in the cycle of PMI feedback and time migration determines, more flexible like this.

Another kind method is to determine that according to the characteristic of two cover PMI feedbacks RI and subband CQI feed back based on two coversWhich cover in cycle and the time migration of PMI feedback, for example, RI and subband CQI feedback cycle and time are inclined to one sideThe cycle and the time migration that move based on horizontal broadband P MI feedback are determined.

Or two cover broadband P MI feedbacks adopt same cycle N_pdWith time migration N_offset, this cycle N_pdWithTime migration N_offsetConfigured by high-level signaling.

Feedback form two: a set of broadband P MI feedback, a set of UE selects subband PMI feedback, a set of subband CQIFeedback

Under this feedback form, a set of PMI works in broadband P MI pattern, and, for this cover PMI, UE existsThe moment of any feedback PMI is only fed back broadband P MI, that is to say according to all S subbands in system bandwidthChannel situation, from code book set, select a pre-coding matrix. The PMI feedback in broadband may be solid size bookPMI feedback, may be also the PMI feedback of dicode book.

Under this feedback form, another set of PMI works in UE and selects subband feedback model, for this cover PMI,UE, at the moment of some feedback PMI feedback broadband P MI, that is to say according to all S sons in system bandwidthThe channel situation of band is selected a pre-coding matrix from code book set; UE is when other feeds back PMICarve feedback UE and select subband PMI, that is to say that UE is according in a BP in system bandwidth best oneThe channel situation of subband is selected a pre-coding matrix from code book set.

Adopt this set of broadband P MI feedback, a set of UE selects the method for subband PMI feedback can make two coversPMI mates, and like this, which subband the subband no matter UE chooser band model is selected is, due in additionA set of broadband feedback model is broadband, and therefore, the subband that UE chooser band model is selected is included in broadband rangeIn. It may be the PMI feedback of solid size book that UE selects the PMI feedback of subband, may be also the PMI of dicode bookFeedback, but only have at present the PMI feedback of dicode book to support UE to select the PMI feedback of subband, following vertical dayThe PMI feedback of linear array may be the PMI feedback of solid size book, but supports UE to select the PMI feedback of subband.

The cycle of broadband P MI feedback and time migration and UE select cycle and the time migration of subband PMI feedbackBy high-level signaling separate configurations. Suppose that wherein cycle and the time migration of a set of PMI feedback are respectively N1_pdAnd N1_offset, this cover PMI feedback is designated as P1; Cycle and the time migration of a set of PMI feedback are respectively N2 in addition_pdAnd N2_offset, this cover PMI feedback is designated as P2. For example broadband P MI for the PMI feedback of vertical antenna battle arrayFeedback is that UE selects subband PMI feedback for the PMI feedback of horizontal antenna battle array, because UE is in level sideTo with the movement velocity of vertical direction may be different, the therefore cycle of separate configurations broadband P MI and the timeIt is suitable that skew and UE select cycle and the time migration of subband feedback PMI. Or the cycle of broadband P MIIt is identical selecting cycle and the time migration of subband feedback PMI with time migration and UE, is by high-level signalingConfiguration.

In two cover PMI feedbacks of configuration, which cover PMI feedback is broadband, and which cover PMI feedback is UEUESelection subband, configured by high-level signaling, more flexible like this. Or for the PMI feedback of horizontal antenna battle arrayBeing that UE selects subband PMI feedback, is broadband P MI feedback for the PMI feedback of vertical antenna battle array. Owing to hanging downThe PMI feedback of straight antenna array is mainly used in beam forming, and the PMI of horizontal antenna battle array feedback is for spatial reuseAnd beam forming, it is not very sensitive that beam forming is selected frequency, and spatial reuse is more responsive to frequency selection,Configuration will obtain good performance like this. Or be that UE selects subband PMI anti-for the PMI feedback of dicode bookFeedback is broadband P MI feedback for the PMI feedback of solid size book. Because the PMI feedback of only having at present dicode book is adoptedBy subband PMI feedback, the PMI feedback of solid size book adopts broadband P MI feedback.

Under this feedback form, only have a set of subband CQI feedback, and only have a set of RI feedback, the feedback of RICycle and time migration, and cycle and time migration that subband CQI feeds back are based on above-mentioned two cover PMI feedbacksCycle of wherein a set of PMI feedback and time migration determine.

For example, suppose UE to select subband PMI feedback to be designated as P1, broadband P MI feedback is designated as to P2, P1Configured separately by high-level signaling respectively with cycle and the time migration of P2. Wherein, described this cover broadband P MI is rootChannel situation according to all subbands in system bandwidth selects one from the precoding code book set for this cover PMI configurationIndividual suitable pre-coding matrix. For example,, according to selecting one to close in the precoding code book set of vertical antenna directionSuitable pre-coding matrix.

Based on above-mentioned hypothesis, the feedback cycle of RI and time migration, and cycle and the time of subband CQI feedbackSkew can be that cycle and the time migration of this cover PMI feedback based on being designated as P1 determined, for example, and RIFeedback cycle and time migration, and cycle and the time migration of subband CQI feedback are anti-based on described PMICycle and the time migration N1 of feedback_pd,N1_offsetDetermine, that is:

Meeting formulaSubframe on report CQI/ broadband, broadbandPMI or subband CQI/ subband PMI;

Meeting formulaSubframe reportAccuse RI, N_OFFSET,RIThat RI is reported in the deviant in time domain, M_RIThat RI compares CQI report week reporting periodThe multiple of phase.

RI is the broadband P 2 based on nearest feedback, draws according to the channel situation of all subbands in system bandwidth.The calculating of the broadband part PMI (being designated hereinafter simply as " broadband P 1 ") of this cover P1 is the broadband based on nearest feedbackP2 and the recently RI of feedback, according to the channel situation of all subbands in system bandwidth, draw broadband P 1. WideThe broadband P 2 of the RI of the feedback based on nearest and the broadband P 1 of feeding back recently and nearest feedback with CQI, rootAccording to the channel situation of all subbands in system bandwidth, draw broadband CQI. Subband P1 (is the subband part of P1PMI) calculating is the RI based on nearest feedback, the broadband P 1 of feedback and the recently broadband P 2 of feedback recently,N according to UE from BPj_jThe channel situation of the best subband of selecting in individual subband, draws subband P1. SonThe subband P1 of the RI of the feedback based on nearest and the broadband P 2 of feeding back recently and nearest feedback with CQI,N according to UE from BPj_jThe channel situation of the best subband of selecting in individual subband, draws subband CQI.

The cycle N2 of another set of broadband P MI feedback_pdWith time migration N2_offsetConfigured separately by high-level signaling, thisCover PMI feedback is called P2. Described this cover broadband P MI be according to the channel situation of all subbands in system bandwidth fromIn precoding code book set for this cover PMI configuration, select a suitable pre-coding matrix. For example,, according to hanging downIn the precoding code book set of straight antenna direction, select a suitable pre-coding matrix.

According to foregoing description, need to determine the cycle of RI and subband CQI feedback based on two cover PMI feedbacks and timeBetween which cover in skew, for this reason, the present embodiment provides the following method of determining:

One method is that the cycle of high-level signaling configuration RI and subband CQI feedback and time migration are based on two coversA set of in the cycle of PMI feedback and time migration determines, more flexible like this.

Another kind method is to determine that according to the characteristic of two cover PMI feedbacks RI and subband CQI feed back based on two coversWhich cover in cycle and the time migration of PMI feedback. For example, RI and subband CQI feedback cycle and time are inclined to one sideMoving cycle and the time migration of the PMI feedback based on horizontal antenna battle array determines. Again for example, RI and subband CQI are anti-Feedback cycle and time migration cycle and the time migration based on adopting dicode PMI feedback originally determined. Again for example,RI and subband CQI feedback cycle and time migration are based on adopting UE to select cycle and the time of subband PMI feedbackSkew is determined. Again for example, RI and subband CQI feedback cycle and time migration based on horizontal antenna battle array, adoptDicode this and adopt UE to select the cycle of subband PMI feedback and time migration to determine.

For example, the feedback kind of UE is that UE selects subband feedback kind (for example, cycle PUCCH feedback mouldFormula 2-1). UE has configured two cover PMI feedbacks, and a set of is for horizontal PMI feedback, and a set of is for verticallyPMI feedback, originally, vertical PMI feedback adopts solid size originally to horizontal PMI feedback employing dicode. Vertical PMI feedbackBe broadband P MI feedback, horizontal PMI feedback is that UE selects subband PMI feedback. RI and subband CQI/PMIFeedback cycle and time migration cycle and the time migration based on adopting UE to select subband PMI to feed back is definite, andIt is for horizontal PMI feedback that this UE selects subband PMI feedback.

Feedback form three: a set of UE selects subband PMI feedback, a set of BPPMI feedback (BPPMI feedbackReferring to this PMI is to draw for the channel situation of all subbands in a BP), a set of subband CQI feedback

For BPPMI feedback, UE, at the moment of some feedback PMI feedback broadband P MI, that is to say basisThe channel situation of all S subbands in system bandwidth is selected a pre-coding matrix from code book set; UEAt the moment Feedback BP PMI of other feedback PMI, that is to say that UE is according to one in system bandwidthThe channel situation of all subbands in BP is selected a pre-coding matrix from code book set. BPPMI is anti-for this coverFeedback may be the PMI feedback of solid size book, may be also the PMI feedback of dicode book. Or at all PMIIn the moment, UE Feedback BP PMI, that is to say that UE is according to the letter of all subbands in a BP in system bandwidthRoad situation is selected a pre-coding matrix from code book set.

Select subband PMI feedback for UE, UE is at the moment of some feedback PMI feedback broadband P MI, alsoIn other words according to the channel situation of all S subbands in system bandwidth, from code book set, select one and prelistCode matrix; UE selects subband PMI at the moment of other feedback PMI feedback UE, that is to say UE rootAccording to the channel situation of a subband best in a BP in system bandwidth, from code book set, select one in advanceEncoder matrix.

Adopt the feedback method of this PMI can make two cover PMI mate, because a set of PMI is for oneThe channel situation of all subbands in individual BP is fed back, and a set of PMI is that UE selects subband feedback in addition,Draw according to the channel situation of selecting best subband in a BP. Like this, no matter UE selects subband PMIThe subband that feedback is selected is which subband in BP, and a set of PMI feedback is for all in a BP in additionThe channel quality of subband, the subband that UE selects subband PMI feedback to select is included within the scope of BP. UE choosingThe PMI feedback of selecting subband may be the PMI feedback of solid size book, may be also the PMI feedback of dicode book. AdoptThe feedback method of this PMI can make two cover PMI mate.

The cycle of BPPMI feedback and time migration and UE select cycle and the time migration of subband PMI feedback to beBy high-level signaling separate configurations. Suppose that wherein cycle and the time migration of a set of PMI feedback are respectively N1_pdWithN1_offset, this cover PMI feedback is designated as P1. Cycle and the time migration of a set of PMI feedback are respectively N2 in addition_pdAnd N2_offset, this cover PMI feedback is designated as P2. For example that BPPMI is anti-for the PMI feedback of vertical antenna battle arrayFeedback, is that UE selects subband PMI feedback for the PMI feedback of horizontal antenna battle array, due to UE in the horizontal directionWith the movement velocity of vertical direction may be different, the therefore cycle of separate configurations BPPMI and time migrationIt is suitable selecting cycle and the time migration of subband feedback PMI with UE. Or the cycle of BPPMI feedback andIt is identical that time migration and UE select cycle and the time migration of subband PMI feedback, is to be joined by high-level signalingPut.

In two cover PMI of configuration, which cover PMI feedback is BPPMI feedback, and which cover PMI feedback is UESelect subband PMI feedback, configured by high-level signaling, more flexible like this. Or for the PMI of horizontal antenna battle arrayFeedback is that UE selects subband PMI feedback, is BPPMI feedback for the PMI feedback of vertical antenna battle array. ByBe mainly used in beam forming in the PMI of vertical antenna battle array feedback, and the PMI of horizontal antenna battle array feedback is for spaceMultiplexing and beam forming, it is not very sensitive that beam forming is selected frequency, and spatial reuse is selected relatively frequencySensitivity, configuration will obtain good performance like this. Or be that UE selects subband for the PMI feedback of dicode bookPMI feedback is BPPMI feedback for the PMI feedback of solid size book. Owing to only having at present the PMI of dicode bookFeedback adopts subband PMI feedback, and the PMI feedback of solid size book adopts broadband P MI feedback.

Under this feedback form, only have a set of subband CQI feedback, and only have a set of RI feedback, the feedback of RICycle and time migration, and cycle and time migration that subband CQI feeds back are based on anti-in above-mentioned two cover PMIThe cycle of wherein a set of PMI feedback of feedback and time migration are determined. For example, the feedback cycle of RI and time are inclined to one sideMove, and cycle and time migration that subband CQI feeds back are based on wherein cycle and the time migration of PMI feedbackN1_pd,N1_offsetDetermine, that is:

Meeting formulaSubframe on report CQI/ broadband, broadbandPMI or subband CQI/ subband PMI;

Meeting formulaSubframe reportAccuse RI, N_OFFSET,RIThat RI is reported in the deviant in time domain, M_RIThat RI compares CQI report week reporting periodThe multiple of phase.

The calculating of RI is the broadband P 2 based on nearest feedback, according to the channel situation of all subbands in system bandwidth,The RI drawing. The calculating of this cover P1 broadband P MI is the broadband P 2 based on nearest feedback and feeds back recentlyRI, draws according to the channel situation of all subbands in system bandwidth. Broadband CQI is feedback based on nearestThe broadband P 1 of RI and recently feedback and the recently broadband P 2 of feedback, according to the letter of all subbands in system bandwidthRoad situation, draws broadband CQI. The calculating of subband PMIP1 is the RI based on nearest feedback, and feedback is wide recentlyWith the BPP1 of P1 and nearest feedback, the N according to UE from BPj_jThe best subband of selecting in individual subbandChannel situation, draw subband PMIP1. Subband CQI is the RI of the feedback based on nearest and feeds back recentlySubband P1 and the nearest BPP2 of feedback, the N according to UE from BPj_jThat in individual subband, selects is bestThe channel situation of subband, draws subband CQI.

The cycle N2 of another set of PMI feedback_pdWith time migration N2_offsetConfigured separately by high-level signaling.

According to foregoing description, need to determine the cycle of RI and subband CQI feedback based on two cover PMI feedbacks and timeBetween which cover in skew, for this reason, the present embodiment provides the following method of determining:

One method is that the cycle of high-level signaling configuration RI and subband CQI feedback and time migration are based on two coversA set of in the cycle of PMI feedback and time migration determines, more flexible like this.

Another kind method is to determine that according to the characteristic of two cover PMI feedbacks RI and subband CQI feed back based on two cover PMIWhich cover in cycle and the time migration of feedback. For example, RI and subband CQI feedback cycle and time migration baseCycle and time migration in the PMI of horizontal antenna battle array feedback are determined. Again for example, RI and subband CQI feedback weekPhase and time migration cycle and the time migration based on adopting dicode PMI feedback originally determined. Again for example, RI andSubband CQI feedback cycle and time migration are based on adopting UE to select cycle and the time migration of subband PMI feedbackDetermine.

For example, the feedback kind of UE is that UE selects subband feedback kind (for example, cycle PUCCH feedback mouldFormula 2-1). UE has configured two cover PMI feedbacks, and a set of is for horizontal PMI feedback, and a set of is for verticallyPMI feedback, originally, vertical PMI feedback adopts solid size originally to horizontal PMI feedback employing dicode. Vertical PMI feedbackBe BPPMI feedback, horizontal PMI feedback is that UE selects subband PMI feedback. RI and subband CQI/PMI are anti-Feedback cycle and time migration cycle and the time migration based on adopting UE to select subband PMI to feed back is definite, and shouldIt is for horizontal PMI feedback that UE selects subband PMI feedback.

Four: two cover UE of feedback form select subband PMI feedback, a set of subband CQI feedback

All adopt UE to select the situation of subband PMI for two cover PMI feedbacks, if this two cover PMI feeds back existIn BPj, select respectively optimum subband, the subband that this two cover PMI selects may be different, such two cover PMITo be unmatched, cannot obtain a suitable subband CQI. In order to obtain a suitable subband CQI, justThe subband that need to make two cover PMI select mates.

A kind of method is that cycle and the time migration of two cover subband PMI is identical, and two cover subband PMI are sameOne subframe reports, and cycle and the time migration of this two covers subband PMI are configured by high-level signaling. In a BP,UE selects a subband that CQI value is maximum according to the situation of two cover PMI, reports corresponding PMI as needsTwo cover subband PMI.

Method two:

In the time that the feedback of two cover PMI all adopts dicode book, for example, the feedback of two cover PMI is all configuration 8 portsThe S of CSIR and the UE of transmission mode 9,10, and the S of CSIR that has configured 4 ports has configured transmission mode8,9,10 and high-level signaling alternativeCodeBookEnabledFor4TX-r12 be genuine UE. When UE joinsWhen the CSI feedback model of putting is cyclic pattern 2-1 (Mode2-1), the feedback form in UE employing method oneThree carry out CSI feedback, feed back a set of BPPMI feedback, a set of subband PMI feedback. Because adopt thisMethod can make two cover PMI mate on frequency domain. In addition, adopt in this way, the feedback of subband PMI makes PMIFeedback can better reflect the frequency selectivity characteristic of channel. At present, the CSI feedback in PUCCH,Only, in the time that the feedback of PMI adopts dicode book, adopt the PMI feedback of subband, adopt solid size in the feedback of PMIWhen book, adopt the PMI feedback in broadband. The channel situation according to BP in feedback form three is calculated PMI (BPPMI) method does not exist at present, only has at present subband PMI and broadband P MI.

Or, in the time that the feedback of two cover PMI all adopts dicode book, when the CSI feedback model of UE configuration is weekWhen phase pattern 2-1 (Mode2-1), the feedback form two in UE employing method one is carried out CSI feedback, anti-Present a set of broadband P MI feedback, a set of subband PMI feedback, can make two cover PMI in this way because adoptOn frequency domain, mate. And the subband PMI in feedback form two and broadband P MI are all the PMI forms that exist at present.

Or, in the time that the feedback of two cover PMI all adopts dicode book, when the CSI feedback model of UE configuration is weekWhen phase pattern 2-1 (Mode2-1), the feedback form one in UE employing method one is carried out CSI feedback, anti-Feedback two cover broadband P MI feedbacks, can make two cover PMI mate on frequency domain because adopt in this way.

When a set of PMI in the feedback of two cover PMI adopts dicode book, when a set of PMI adopts solid size book in addition. WhenWhen the CSI feedback model of UE configuration is cyclic pattern 2-1 (Mode2-1), the feedback in UE employing method oneForm two is carried out CSI feedback, for example, adopts the PMI feedback of dicode book to use subband PMI feedback, adopts singleThe PMI feedback of code book is used broadband P MI feedback, can make in this way two cover PMI on frequency domain because adoptCoupling. In addition, adopt in this way, the feedback of subband PMI makes the feedback of PMI can better reflect channelFrequency selectivity characteristic. At present, the CSI feedback in PUCCH, only adopts two in the feedback of PMIWhen code book, adopt the PMI feedback of subband, in the time that the feedback of PMI adopts solid size book, adopt the PMI in broadbandFeedback. Therefore,, in the time that the CSI feedback model of UE configuration is cyclic pattern 2-1 (Mode2-1), UE adoptsCarry out CSI feedback by the feedback form two in method one, can make in this way two cover PMI frequently because adoptOn territory, mate. And the subband PMI in feedback form two and broadband P MI are all the PMI forms that exist at present.

Or when a set of PMI in the feedback of two cover PMI adopts dicode book, a set of PMI adopts solid size book in additionTime. In the time that the CSI feedback model of UE configuration is cyclic pattern 2-1 (Mode2-1), UE employing method oneIn the method for feedback form one carry out CSI feedback, feed back two cover broadband P MI feedbacks, because adopt thisMethod can make two cover PMI mate on frequency domain.

In the time that the feedback of two cover PMI all adopts solid size book, when the CSI feedback model of UE configuration is cyclic patternWhen 2-1 (Mode2-1), the feedback form one in UE employing method one is carried out CSI feedback. At present, at PUCCHIn CSI feedback, only, in the time that the feedback of PMI adopts dicode book, adopt the PMI feedback of subband, at PMIFeedback while adopting solid size book, adopt the PMI feedback in broadband. Therefore the CSI feedback model, configuring as UEBe cyclic pattern 2-1 (Mode2-1), and the feedbacks of two cover PMI are while all adopting solid size book, UE employing methodFeedback form one in one is carried out CSI feedback, feeds back two cover broadband P MI feedbacks, because adopt in this wayCan make two cover PMI mate on frequency domain. And the broadband P MI in feedback form one is the PMI existing at presentForm.

Corresponding to said method, the application also provides a kind of device of channel status information reports, as Fig. 6 instituteShow, this device comprises: configuration information acquisition module, method for reporting determination module and reporting modules, wherein:

Described configuration information acquisition module, for obtaining the configuration corresponding to the CSI report of two-dimensional antenna configuration;

Described method for reporting determination module, for determining the method for CSI report according to the configuration of CSI report;

Described reporting modules, for the method report CSI according to described CSI report.

In a word, adopt the application's technical scheme, the CSI of feedback is mated, energy with actual channel performanceEnough improve systematic function, thereby improve the handling capacity of downlink business.

The foregoing is only the application's preferred embodiment, in order to limit the application, not all in the applicationSpirit and principle within, any amendment of making, be equal to replacement, improvement etc., all should be included in the application and protectWithin the scope of protecting.

Claims (17)

1. a method for channel status information reports, is characterized in that, comprising:

User equipment (UE) obtains the configuration corresponding to the channel condition information CSI report of two-dimensional antenna configuration;

UE determines the method for CSI report according to the configuration of CSI report;

UE is according to the method report CSI of described CSI report.

2. method according to claim 1, is characterized in that:

The configuration of the described CSI report corresponding to two-dimensional antenna configuration comprises: the pattern of CSI report, every dimension antennaCycle and the time migration of CSI reference signal RS port number, CSI report.

3. method according to claim 2, is characterized in that:

The method of described CSI report comprises: report two cover pre-coding matrix instruction PMI feedbacks and a set of channel quality refer toShow CQI feedback, and described CQI feedback is synthetic based on described two cover PMI feedbacks.

4. method according to claim 3, is characterized in that:

PMI feedback is overlapped in described report two and a set of CQI is fed back to: report two cover broadband P MI feedback and a set of subbandsCQI feedback, and, a set of order instruction RI reported.

5. method according to claim 4, is characterized in that:

Described UE comprises according to the method report CSI of described CSI report:

Cycle of RI feedback and time migration and subband CQI feedback are determined in cycle based on P1 and time migrationCycle and time migration;

Based on the P2 of nearest feedback, draw RI according to the channel situation of all subbands in system bandwidth;

P2 based on nearest feedback and RI, draw P1 according to the channel situation of all subbands in system bandwidth;

RI, P1 and P2 based on nearest feedback, draw wide according to the channel situation of all subbands in system bandwidthBand CQI;

RI, P1 and the P2 of the feedback based on nearest, the N according to UE from BPj_jIn individual subband, selectThe channel situation of good subband draws subband CQI;

Wherein, P1 and P2 represent respectively described two cover broadband P MI feedbacks;

BPj is by N_jIndividual subband composition continuous on frequency domain.

6. method according to claim 3, is characterized in that:

PMI feedback is overlapped in described report two and a set of CQI is fed back to: report a set of broadband P MI feedback, a set of UESelect subband PMI feedback and a set of subband CQI feedback, and, a set of order instruction RI reported;

Wherein, the cycle of the cycle of RI feedback and time migration and subband CQI feedback and time migration are based on instituteStating cycle and the time migration of wherein a set of PMI feedback of two cover PMI feedbacks determines.

7. method according to claim 6, is characterized in that:

Described UE comprises according to the method report CSI of described CSI report:

Cycle of RI feedback and time migration and subband CQI feedback are determined in cycle based on P1 and time migrationCycle and time migration;

Based on the P2 of nearest feedback, draw RI according to the channel situation of all subbands in system bandwidth;

P2 based on nearest feedback and RI, show that according to the channel situation of all subbands in system bandwidth P1's is wideBand portion;

Broadband part and the P2 of RI, P1 based on nearest feedback, according to the channel of all subbands in system bandwidthSituation draws broadband CQI;

Broadband part and the P2 of RI, P1 based on nearest feedback, the N according to UE from BPj_jIn individual subbandThe channel situation of the best subband of selecting draws the subband part of P1;

Subband part and the P2 of RI, the P1 of the feedback based on nearest, the N according to UE from BPj_jIndividual subbandIn the channel situation of the best subband selected draw subband CQI;

Wherein, P1 represents that described UE selects subband PMI feedback, and P2 represents described broadband P MI feedback;

BPj is by N_jIndividual subband composition continuous on frequency domain.

8. method according to claim 6, is characterized in that:

Being configured by high-level signaling is a set of broadband P MI feedback and a set of UE by described two cover PMI feedback configuration respectivelySelect subband PMI feedback;

Or, be fed back to UE for the PMI of horizontal antenna battle array and select subband PMI feedback, for vertical antenna battle arrayPMI be fed back to broadband P MI feedback;

Or, be fed back to UE for the PMI of dicode book and select subband PMI feedback, anti-for the PMI of solid size bookFeedback is broadband P MI feedback.

9. method according to claim 3, is characterized in that:

PMI feedback is overlapped in described report two and a set of CQI is fed back to: report a set of UE select subband PMI feed back,A set of BPPMI feedback and a set of subband CQI feedback, and, a set of order instruction RI reported;

Wherein, BPPMI feedback refers to that UE is according to the channel situation of all subbands in a BP in system bandwidth,From code book set, select a pre-coding matrix; The cycle of RI feedback and time migration and subband CQI feedbackCycle and the time migration of cycle and the time migration wherein a set of PMI feedback based on described two cover PMI feedbacks are determined.

10. method according to claim 9, is characterized in that:

By high-level signaling configure respectively by described two cover PMI feedback configuration be a set of UE select subband PMI feedback andA set of BPPMI feedback;

Or, be fed back to UE for the PMI of horizontal antenna battle array and select subband PMI feedback, for vertical antenna battle arrayPMI be fed back to BPPMI feedback;

Or, be fed back to UE for the PMI of dicode book and select subband PMI feedback, anti-for the PMI of solid size bookFeedback is BPPMI feedback.

11. according to the method described in claim 6 or 9, it is characterized in that:

Described wherein a set of PMI is fed back to for the PMI feedback of horizontal antenna battle array, for dicode PMI feedback originallyOr UE selects subband PMI feedback.

12. methods according to claim 3, is characterized in that:

PMI feedback is overlapped in described report two and a set of CQI is fed back to: report two cover UE select subband PMI feedback withA set of subband CQI feedback;

Wherein, described two cover UE select the cycle of subband PMI feedback identical with time migration, in a BP,UE selects a subband that CQI value is maximum according to the situation of two cover PMI, reports corresponding PMI as needsThe two cover UE that accuse select subband PMI.

13. according to the method described in claim 4 to 10 any one, it is characterized in that:

The cycle of described two cover PMI feedbacks is different with time migration, according to the configuration of high-level signaling or according to described twoThe characteristic of cover broadband P MI feedback, determines the cycle of RI feedback and the cycle of time migration and subband CQI feedbackWith time migration based on cycle and the time migration of PMI feedback;

Or the cycle of described two cover PMI feedbacks is identical with time migration.

14. according to the method described in claim 4 or 5, it is characterized in that:

In the time that described two cover PMI feedbacks all adopt dicode book, or, when one of them of described two cover PMI feedbacksAdopt dicode book, when another adopts solid size book, or, in the time that described two cover PMI feedbacks all adopt solid size book, adoptBy the method for described CSI report.

15. according to the method described in claim 6 to 8 any one, it is characterized in that:

In the time that described two cover PMI feedbacks all adopt dicode book, or, when one of them of described two cover PMI feedbacksAdopt dicode book, when another adopts solid size book, adopt the method for described CSI report.

16. according to the method described in claim 9 or 10, it is characterized in that:

In the time that described two cover PMI feedbacks all adopt dicode book, adopt the method for described CSI report.

The device of 17. 1 kinds of channel status information reports, is characterized in that, comprising: configuration information acquisition module, reportAnnouncement method determination module and reporting modules, wherein:

Described configuration information acquisition module, for obtaining the configuration corresponding to the CSI report of two-dimensional antenna configuration;

Described method for reporting determination module, for determining the method for CSI report according to the configuration of CSI report;

Described reporting modules, for the method report CSI according to described CSI report.