CN103391158B - A kind of periodic feedback method of broad-band channel information, Apparatus and system - Google Patents
A kind of periodic feedback method of broad-band channel information, Apparatus and system Download PDFInfo
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Abstract
The invention discloses a kind of periodic feedback method of broad-band channel information, Apparatus and system, relate to the communication technology, in the time that terminal is carried out periodic feedback, carry out the feedback of the measured broad-band channel information of one or more non-zero channel state information reference signals CSI-RS resources, and the broad-band channel quality indicator (CQI) information of each CSI-RS resource based on one or more interference hypothesis, support the broad-band channel information feedback of one or more transfer points based on one or more CQI values based on disturbance hypothesis thereby realize, simultaneously, network side is by configuring corresponding non-zero power reference signal for end side, the configuration information of interferometry resource and periodic feedback report the parameters such as moment configuration parameter, can in the subframe of expection, receive required one or more non-zero power CSI-RS resources measured based on one or more broad-band channel information based on disturbance hypothesis.
Description
Technical field
The present invention relates to the communication technology, relate in particular to a kind of periodic feedback method, device of broad-band channel informationAnd system.
Background technology
Long Term Evolution strengthens (LTE-A, long-termevolution-advanced) system and adopts identical networking,In increasing substantially the availability of frequency spectrum, also can cause the subscriber signal decline of cell edge simultaneously seriousBe subject to the higher interference from other communities, if signal fadeout and interference problem are not processed, willHave a strong impact on the experience of edge customer. Multipoint cooperative (CoMP, coordinatedmultiplepoint) technologyBy introducing information interaction and the joint transmission between many communities, not only can improve signal quality and also can fallLow presence of intercell interference, thus can increase substantially the data transmission performance of Cell Edge User.
Current coordinated multipoint transmission scheme roughly can be divided into 3 classes: dynamic transmission point selection (dynamicPointselection, DPS), cooperative beam figuration (coordinatedbeamforming, CBF) and associatingTransmission (jointtransmission, JT), multipoint cooperative also can adopt the mixing side of above 3 class transmission plansCase. Such as, DPS and CBF combine, and main transfer point is determined by Dynamic Selection, with non-main transfer pointBetween outer cooperation transmission point, realize cooperative beam figuration etc. by combined dispatching. Meanwhile, also can pass throughOn some running time-frequency resource, allow some transfer point vacate and do not signal, thereby reduce the interference to other transfer points,Realize frequency domain interference flexibly and coordinate, this type of technology is called dynamic blank (DB, dynamicblanking).In real system, a transmission mode may comprise multiple transmission plan, supports between all kinds of transmission plansPattern switch. In order to ensure better transmission performance and the stability of a system, support the transmission of CoMP transmissionIn pattern, often need to support the switching to unicast.
In version 10, LTE-A system introduced based on channel state information reference signals (CSI-RS,Channelstateinformation-referencesignal) carry out channel condition information (CSI, channelstateInformation) measure, based on user-specific reference signal (UERS, userequipmentspecificReferencesignal) carry out the pilot tone mechanism of signal demodulation. Non-zero power CSI-RS is not undertaken pre-by one groupThe known signal that coding is processed, pilot frequency sequence forms, in corresponding CSI-RS resource by corresponding dayLine cap sends, for measuring the channel coefficients of corresponding port. Zero energy CSI-RS is by one group of blank signalForm, in corresponding CSI-RS resource, corresponding antenna port does not send any signal, for measuring phaseAnswer the disturbed condition of running time-frequency resource.
System is by configuration different non-zero power channel state information reference signals (CSI-RS, channelStateinformation-referencesignal) subscriber equipment (UE, userequipment) can be surveyedMeasure the down channel of each " transfer point ". It should be noted that " transfer point " may not be the biography of a physicsDefeated, and may be a virtual transfer point, each virtual transmission be o'clock corresponding to a CSI-RS resource,Transfer point by one or more physics forms.
After realizing down channel and measuring, carry out information according to the needed channel condition information of transmission plan anti-Feedback, all kinds of transmission plans need corresponding channel condition information support. Such as, DPS needs multiple transfer pointsChannel condition information, or the channel condition information of some transfer points and this transfer point correspondingCSI-RS index information, and need the channel matter under multiple interference supposed situation in conjunction with the DPS of DB technologyAmount information, the multiple transfer points of JT transmission needs are fed back the CSI of identical order (Rank) etc.
In existing Long Term Evolution (long-termevolution, LTE) system, support two class channel shapesState information feedback system, that is, based on Physical Uplink Control Channel (physicaluplinkcontrolchannel,PUCCH) periodic feedback and based on Physical Uplink Shared Channel (physicaluplinksharedchannel,PUSCH) aperiodic channel status information feedback. Periodic feedback based on PUCCH comprises 4 class feedbacksPattern (reportingmode), pattern 1-0,2-0,1-1 and 2-1. All kinds of feedback models guarantee replacement altogether 1,1a, 2,2a, 2b, 2c, 3,4,5,6 be totally 10 kinds of Report Types (reportingtype). Wherein pattern1-1 and 2-1 support package feed back containing pre-coding matrix instruction (PMI, precodingmatrixindicator)Information feedback, pattern 1-0 and 2-0 support not comprise the CSI feedback of PMI feedback, that is, and letterRoad quality instruction (CQI, channelqualityindicator).
Pattern 1-1:
For the configuration of 2 or 4 antenna ports, comprise 2 kinds of Report Types, that is, and Type2 and Type3,Be respectively used to feed back broadband P MI/CQI and order instruction (rankindicator, RI), it reports the moment respectivelyFor:
With
Wherein, nfFor frame number, nsFor timeslot number, NOFFSET，CQIAnd NpdFor high-rise configuration parameter, table respectivelyShow that broadband P MI/CQI reports sub-frame offset and the report cycle in moment, NOFFSET，RIAnd MRIAlso be high-riseConfiguration parameter, represents that respectively it is N that RI reports the sub-frame offset in moment and RI report cyclepdMultiple.
For the configuration of 8 antenna ports, comprise 2 subpatterns, be respectively subpattern 1 and subpattern 2.
Pattern 1-1 subpattern 1, comprises 2 kinds of Report Types, that is, Type2b and Type5, be respectively used toFeedback CQI/ broadband, broadband the 2nd PMI and RI/ broadband the one PMI, it reports the moment to be respectively:
With
Wherein, nfFor frame number, nsFor timeslot number, NOFFSET，CQIAnd NpdFor high-rise configuration parameter, table respectivelyShow that CQI/ broadband, broadband the 2nd PMI reports sub-frame offset and the report cycle in moment, NOFFSET，RIAnd MRIAlsoFor high-rise configuration parameter, represent that respectively RI/ broadband the one PMI reports the sub-frame offset in moment and RI to reportCycle is NpdMultiple.
Pattern 1-1 subpattern 2, comprises 2 kinds of Report Types, that is, Type2c and Type3, be respectively used toFeedback CQI/ broadband, broadband the one PMI/ broadband the 2nd PMI and RI, it reports the moment to be respectively:
With
Wherein, nfFor frame number, nsFor timeslot number, NOFFSET，CQIAnd NpdFor high-rise configuration parameter, table respectivelyShow that CQI/ broadband, broadband the one PMI/ broadband the 2nd PMI reports sub-frame offset and the report cycle in moment,NOFFSET，RIAnd MRIAlso be high-rise configuration parameter, represent that respectively RI reports sub-frame offset and the RI in momentReport cycle is NpdMultiple.
Pattern 2-1:
For the configuration of 2 or 4 antenna ports, comprise 3 kinds of Report Types, that is, and Type1, Type2 andType3, is respectively used to feed back subband CQI, broadband P MI/CQI and RI, and it reports the moment to be respectively:
With
Wherein, nfFor frame number, nsFor timeslot number, NOFFSET，CQIAnd NpdFor high-rise configuration parameter, table respectivelyShow that subband CQI reports sub-frame offset and the report cycle in moment, H=JK+1, wherein J represents system bandWide comprised portions of bandwidth (bandwidthpart, BP) number, K is high-rise configuration parameter, HNpdForThe report cycle of broadband P MI/CQI, NOFFSET，RIAnd MRIAlso be high-rise configuration parameter, represent respectively on RISub-frame offset and the RI report cycle of carving that give the correct time is HNpdMultiple.
For the configuration of 8 antenna ports, according to precoding type instruction (precodertypeindicator, PTI)Difference, comprise respectively 3 kinds of Report Types:
In the time of PTI=0, that is, Type2b, Type2a and Type6, be respectively used to feed back broadband CQI/Broadband the 2nd PMI, broadband the one PMI and RI/PTI;
In the time of PTI=1, that is, Type1a, Type2b and Type6, be respectively used to feed back subband CQI/Subband the 2nd PMI, CQI/ broadband, broadband the 2nd PMI and RI/PTI;
The moment that reports of 3 kinds of reportingtype is respectively:
With
Wherein, nfFor frame number, nsFor timeslot number, NOFFSET，CQIAnd NpdFor high-rise configuration parameter, H ' is alsoHigh-rise configuration parameter, H=JK+1, wherein J represents the portions of bandwidth (bandwidth that system bandwidth comprisesPart, BP) number, K is high-rise configuration parameter, NOFFSET，RIAnd MRIAlso be high-rise configuration parameter, table respectivelyShow that it is HN that RI/PTI reports the sub-frame offset in moment and RI/PTI report cyclepdMultiple.
Pattern 1-0, comprises a kind of Report Type, that is, Type4, for feeding back broadband CQI, gives the correct time on itBe quarter:
Wherein, nfFor frame number, nsFor timeslot number, NOFFSET，CQIAnd NpdFor high-rise configuration parameter, table respectivelyShow that broadband CQI reports sub-frame offset and the report cycle in moment.
Pattern 2-0: comprise 2 kinds of Report Types, that is, Type1 and Type4, be respectively used to feed back subbandCQI and broadband CQI, it reports the moment to be respectively:
With
Wherein, nfFor frame number, nsFor timeslot number, NOFFSET，CQIAnd NpdFor high-rise configuration parameter, table respectivelyShow that subband CQI reports sub-frame offset and the report cycle in moment, H=JK+1, wherein J represents system bandWide comprised portions of bandwidth (bandwidthpart, BP) number, K is high-rise configuration parameter, HNpdForThe report cycle of broadband CQI.
The PUCCH Report Type expense that concrete each PUCCH Report mode and mode state are corresponding is largeLittle as shown in table 1:
Table 1:PUCCHReportingTypePayloadsizeperPUCCHReportingModeandM odeStateThe PUCCH Report Type overhead size that each PUCCH Report mode and mode state are corresponding
In order to support the dynamic switching of multiple CoMP transmission plan, terminal need to be fed back one or more transmissionThe channel information that point comprises one or more CQI values based on disturbance hypothesis. Existing periodic feedback patternFor supporting single-point multiple-input and multiple-output (multipleinputmultipleoutput, MIMO) to design,Only support the CSI feedback based on a non-zero power CSI-RS resource measurement,, in design, do not have meanwhileConsider dynamic frequency domain interference coordination, the interferometry of CQI is only by different interferometry in configuration time domainSet realizes, that is, the CQI in same feedback model does not distinguish interferometry. Therefore, one-period is anti-Feedback pattern cannot support one or more transfer points based on one or more CQI based on disturbance hypothesisThe broad-band channel information feedback of value.
Summary of the invention
The embodiment of the present invention provides a kind of periodic feedback method, Apparatus and system of broad-band channel information, forThe one or more transfer points of realization support are wide based on one or more CQI values based on disturbance hypothesisBand feedback of channel information.
A periodic feedback method for broad-band channel information, comprising:
The configuration information and the periodic feedback that receive non-zero power reference signal, interferometry resource report the moment to joinPut parameter;
Determine the set of non-zero power reference signal configuration, configuration sequence, non-zero power reference signal configuration number,The required interference hypothesis of interferometry resource distribution set, configuration sequence and channel quality indicator (CQI) to be feedbackNumber;
According to giving the correct time in the configuration information of described non-zero power reference signal, interferometry resource and periodic feedbackCarve configuration parameter, carry out one or more non-zero channel state information reference signals in the moment that reports of settingThe feedback of the measured broad-band channel information of CSI-RS resource, described each CSI-RS resource based on one orThe broadband CQI information of multiple interference hypothesis.
A periodic feedback method for broad-band channel information, comprising:
The configuration information from interferometry resource to terminal and the periodic feedback that send non-zero power reference signal, reportMoment configuration parameter;
At the one or more non-zero channel condition informations that report moment receiving terminal feedback of setting with reference to letterNumber measured broad-band channel information of CSI-RS resource, described each CSI-RS resource is based on one or moreDisturb the broad-band channel quality indicator (CQI) information of hypothesis.
A periodic feedback device for broad-band channel information, comprising:
Receiving element, for receiving configuration information and the cycle of non-zero power reference signal, interferometry resourceFeedback reports moment configuration parameter;
Determining unit, for determining the set of non-zero power reference signal configuration, configuration sequence, non-zero power ginsengExamine signal configures number, interferometry resource distribution set, configuration sequence and channel quality to be feedback instructionThe number of the required interference hypothesis of CQI;
Feedback unit, for according to the configuration information of described non-zero power reference signal, interferometry resource andPeriodic feedback reports moment configuration parameter, carries out one or more non-zero channel status in the moment that reports of settingThe feedback of the measured broad-band channel information of information reference signal CSI-RS resource, described each CSI-RSThe broadband CQI information of resource based on one or more interference hypothesis.
A periodic feedback device for broad-band channel information, comprising:
Transmitting element, for sending the configuration information of non-zero power reference signal, interferometry resource to terminalReport moment configuration parameter with periodic feedback;
Feedback receiving element, for the one or more non-zero letters that report moment receiving terminal feedback of settingThe broad-band channel information that channel state information reference signal CSI-RS resource is measured, described each CSI-RSThe broad-band channel quality indicator (CQI) information of resource based on one or more interference hypothesis.
A periodic feedback system for broad-band channel information, comprising:
Terminal, for receiving configuration information and the periodic feedback of non-zero power reference signal, interferometry resourceReport moment configuration parameter; Determine the set of non-zero power reference signal configuration, configuration sequence, non-zero power ginsengExamine signal configures number, interferometry resource distribution set, configuration sequence and channel quality to be feedback instructionThe number of the required interference hypothesis of CQI; According to the configuration of described non-zero power reference signal, interferometry resourceInformation and periodic feedback report moment configuration parameter, carry out one or more non-zero letters in the moment that reports of settingThe feedback of the measured broad-band channel information of channel state information reference signal CSI-RS resource, described eachThe broadband CQI information of CSI-RS resource based on one or more interference hypothesis;
Network equipment, for sending joining of non-zero power reference signal, interferometry resource to described terminalPut information and periodic feedback and report moment configuration parameter; And receive described terminal feedback in the moment that reports of settingThe measured broad-band channel information of one or more non-zero power CSI-RS resources, described each CSI-RSThe broadband CQI information of resource based on one or more interference hypothesis.
The embodiment of the present invention provides a kind of periodic feedback method, Apparatus and system of broad-band channel information, at endWhen end carries out periodic feedback, carry out the measured broad-band channel of one or more non-zero power CSI-RS resourcesThe feedback of information, and the broadband CQI information of each CSI-RS resource based on one or more interference hypothesis,Support one or more transfer points based on one or more CQI values based on disturbance hypothesis thereby realizeBroad-band channel information feedback.
The periodic feedback method of the broad-band channel information providing by patent working example of the present invention, install and beSystem, network side is by configuring the configuration letter of corresponding non-zero power reference signal, interferometry resource for end sideBreath and periodic feedback report the parameters such as moment configuration parameter, can in the subframe of expection, receive required oneOr multiple non-zero power CSI-RS resources measured based on one or more wide based on disturbance hypothesisBand channel information.
Brief description of the drawings
One of periodic feedback method flow diagram of the broad-band channel information that Fig. 1 provides for the embodiment of the present invention;
Fig. 2 is corresponding to the content of the periodic feedback of the embodiment of the present invention one and moment schematic diagram;
Fig. 3 is corresponding to the content of the periodic feedback of the embodiment of the present invention two and moment schematic diagram;
Two of the periodic feedback method flow diagram of the broad-band channel information that Fig. 4 provides for the embodiment of the present invention;
The periodic feedback apparatus structure schematic diagram of the broad-band channel information that Fig. 5 provides for the embodiment of the present invention itOne;
The periodic feedback apparatus structure schematic diagram of the broad-band channel information that Fig. 6 provides for the embodiment of the present invention itTwo;
The periodic feedback system architecture schematic diagram of the broad-band channel information that Fig. 7 provides for the embodiment of the present invention.
Detailed description of the invention
The embodiment of the present invention provides a kind of periodic feedback method, Apparatus and system of broad-band channel information, at endWhen end carries out periodic feedback, carry out the measured broad-band channel of one or more non-zero power CSI-RS resourcesThe feedback of information, and the broadband CQI information of each CSI-RS resource based on one or more interference hypothesis,Support one or more transfer points based on one or more CQI values based on disturbance hypothesis thereby realizeBroad-band channel information feedback.
The periodic feedback method of the broad-band channel information that as shown in Figure 1, the embodiment of the present invention provides comprises:
Configuration information and the periodic feedback of step S101, reception non-zero power reference signal, interferometry resourceReport moment configuration parameter;
Step S102, determine the set of non-zero power reference signal configuration, configuration sequence, non-zero power is with reference to letterNumber configuration number, the required interference of interferometry resource distribution set, configuration sequence and CQI to be feedback hypothesisNumber;
Step S103, according to configuration information and the periodic feedback of non-zero power reference signal, interferometry resourceReport moment configuration parameter, carry out one or more non-zero power CSI-RS resources in the moment that reports of settingThe feedback of measured broad-band channel information, each non-zero power CSI-RS resource is based on one or more dryDisturb the broadband CQI information of hypothesis.
Owing to while carrying out periodic feedback, having fed back one or more non-zero power CSI-RS in the moment of settingThe broad-band channel information that resource is measured, and each CSI-RS resource is based on one or more interference hypothesisBroadband CQI information, has realized and has supported that one or more transfer point protections are one or more based on disturbance vacationIf the broad-band channel information feedback of CQI value.
Concrete, in the time of feedback, feedback content comprises that one or more non-zero power CSI-RS resources surveyThe broad-band channel information of amount, and the broadband CQI of each CSI-RS resource based on one or more interference hypothesisInformation.
Aspect resource bearing, feed back the measured broadband letter of one or more non-zero power CSI-RS resourcesWhen road information, specifically comprise 1+Nresource+Nresource·(NCQI-1) plant Report Type, be respectively used to report RI,NresourceBroadband P MI and N that individual non-zero power CSI-RS resource is measuredresourceIndividual false based on the first interferenceIf broadband CQI information, and NresourceThe measured N of individual non-zero power CSI-RS resourceresource·(NCQI-1)Individual based on other NCQI-1 is disturbed the broadband CQI information of hypothesis, wherein, and NresourceFor the non-zero power of feedbackThe number of the measured broad-band channel information of rate CSI-RS resource, NCQIFor each CSI-RS resource based onDisturb the number of the broadband CQI information of hypothesis.
Aspect content relevance, PMI determines based on the RI value that the last time reports, when not existing on RIGive the correct time, determine based on RI=1; CQI is based on this or the last PMI value reporting and nearestThe RI value that once reports determines, if this or do not exist before PMI to report, the PMI based on making an appointmentDetermine, as the minimum PMI in codebook subset constraint.
Report aspect the moment, the reporting in the moment of setting, for reporting NresourceIndividual non-zero power CSI-RSThe broadband P MI that resource is measured and NresourceThe individual broadband CQI information of disturbing hypothesis based on the first, and NresourceIndividual non-zero power CSI-RS resource measured based on other NCQI-1 is disturbed the broadband CQI of hypothesisThe N of informationresource+Nresource·(NCQI-1) plant Report Type and there is the first identical report cycle and different sonsFrame shifting amount, the cycle of the Report Type reporting for RI is the integral multiple of the first report cycle, and its sonFrame shifting amount and Nresource+Nresource·(NCQI-1) sub-frame offset of kind Report Type is all not identical.
The periodic feedback of the broad-band channel information embodiment of the present invention being provided below by specific embodimentMethod describes:
Embodiment mono-,
In this embodiment, need to feed back Nresource=2 measured channels of non-zero power CSI-RS resourcePublic RI, NresourceThe broadband P MI of individual non-zero power CSI-RS resource and each non-zero power CSI-RSResource based on NCQI=2 are disturbed the broadband CQI information of hypothesis;
Aspect resource bearing, comprise 1+Nresource+Nresource·(NCQI-1)=5 kinds of Report Types, are respectively used toReport the broadband P MI of RI, the 1st CSI-RS resource and disturb based on the 1st the CQI, the 1st supposingIndividual CSI-RS resource disturbs based on the 2nd the CQI, the broadband P MI of the 2nd CSI-RS resource that supposeDisturb based on the 2nd the CQI supposing with the CQI that disturbs to suppose based on the 1st, the 2nd CSI-RS resource;
Fig. 2 is content and the moment schematic diagram reporting in the present embodiment, and each Report Type reports the moment to be respectively:
With
Wherein, nfFor frame number, nsFor timeslot number, NOFFSET，CQIAnd NpdFor high-rise configuration parameter, table respectivelyShow that broadband P MI/CQI reports sub-frame offset and the report cycle in moment, NOFFSET，RIAnd MRIAlso be high-riseConfiguration parameter, represents that respectively it is N that RI reports the sub-frame offset in moment and RI report cycleCQI·Nresource·NpdMultiple.
The CSI-RS resource that is greater than 1 for CSI-RS port number, the RI that PMI reported based on the last timeValue is calculated, if do not exist before RI to report, calculates based on RI=1, for CSI-RS port numberBe 1 CSI-RS resource, do not report PMI; The CSI-RS resource that is greater than 1 for CSI-RS port number,CQI calculates with the last RI value reporting based on this or the last PMI value reporting, if thisOr do not exist before PMI to report, the PMI based on making an appointment calculates, as, codebook subset is approximatelyThe CSI-RS resource that the minimum PMI of intrafascicular permission is 1 for CSI-RS port number, CQI is based on Rank=1Calculate.
PUCCH reporting types overhead size in table 2: embodiment mono-
Embodiment bis-,
In this embodiment, need to feed back Nresource=1 measured channel of non-zero power CSI-RS resourceThe broadband P MI of RI, this non-zero power CSI-RS resource and this non-zero power CSI-RS resource are based on NCQI＝2The broadband CQI information of individual interference hypothesis;
Aspect resource bearing, comprise 1+Nresource+Nresource·(NCQI-1)=3 kinds of Report Types, are respectively used toReport the broadband P MI of RI, this CSI-RS resource and disturb based on the 1st CQI, this CSI-RS of supposingResource disturbs based on the 2nd the CQI supposing;
Fig. 3 is content and the moment schematic diagram reporting in the present embodiment, and each Report Type reports the moment to be respectively:
With
Wherein, nfFor frame number, nsFor timeslot number, NOFFSET，CQIAnd NpdFor high-rise configuration parameter, table respectivelyShow that broadband P MI/CQI reports sub-frame offset and the report cycle in moment, NOFFSET，RIAnd MRIAlso be high-riseConfiguration parameter, represents that respectively it is N that RI reports the sub-frame offset in moment and RI report cycleCQI·Nresource·NpdMultiple.
The CSI-RS resource that is greater than 1 for CSI-RS port number, the RI that PMI reported based on the last timeValue is calculated, if do not exist before RI to report, calculates based on RI=1, for CSI-RS port numberBe 1 CSI-RS resource, do not report PMI; The CSI-RS resource that is greater than 1 for CSI-RS port number,CQI calculates with the last RI value reporting based on this or the last PMI value reporting, if thisOr do not exist before PMI to report, the PMI based on making an appointment calculates, as, codebook subset is approximatelyThe CSI-RS resource that the minimum PMI of intrafascicular permission is 1 for CSI-RS port number, CQI is based on Rank=1Calculate.
The embodiment of the present invention is the corresponding a kind of periodic feedback method that broad-band channel information is provided also, and the method is by netNetwork side apparatus is carried out, and as shown in Figure 4, comprising:
Step S401, send configuration information and the week of non-zero power reference signal, interferometry resource to terminalPhase feedback reports moment configuration parameter;
Step S402, the one or more non-zero power that report moment receiving terminal feedback of settingThe broad-band channel information that CSI-RS resource is measured, each CSI-RS resource is false based on one or more interferenceIf broadband CQI information.
Wherein, aspect bearing resource, the measured broadband of one or more non-zero power CSI-RS resourcesChannel information, specifically comprises 1+Nresource+Nresource·(NCQI-1) plant Report Type, be respectively used to report RI,NresourceBroadband P MI and N that individual non-zero power CSI-RS resource is measuredresourceIndividual false based on the first interferenceIf broadband CQI information, and NresourceThe measured N of individual non-zero power CSI-RS resourceresource·(NCQI-1)Individual based on other NCQI-1 is disturbed the broadband CQI information of hypothesis, wherein, and NresourceFor the non-zero power of feedbackThe number of the measured broad-band channel information of rate CSI-RS resource, NCQIFor each CSI-RS resource based onDisturb the number of the broadband CQI information of hypothesis.
Aspect content relevance, PMI determines based on the RI value that the last time reports, when not existing on RIGive the correct time, determine based on RI=1;
CQI is definite with the last RI value reporting based on this or the last PMI value reporting, ifThis or do not exist before PMI to report, the PMI based on making an appointment determines.
Report aspect the moment, the reporting in the moment of setting, for reporting NresourceIndividual non-zero power CSI-RSThe broadband P MI that resource is measured and NresourceThe individual broadband CQI information of disturbing hypothesis based on the first, andNresourceIndividual non-zero power CSI-RS resource measured based on other NCQI-1 is disturbed the broadband CQI of hypothesisThe N of informationresource+Nresource·(NCQI-1) plant Report Type and there is the first identical report cycle and different sonsFrame shifting amount, the cycle of the Report Type reporting for RI is the integral multiple of the first report cycle, and its sonFrame shifting amount and Nresource+Nresource·(NCQI-1) sub-frame offset of kind Report Type is all not identical.
The embodiment of the present invention is the corresponding periodic feedback device that a kind of broad-band channel information is provided also, and this device canBe specially user terminal, as shown in Figure 5, this device comprises:
Receiving element 501, for receive non-zero power reference signal, interferometry resource configuration information andPeriodic feedback reports moment configuration parameter;
Determining unit 502, for determining the set of non-zero power reference signal configuration, configuration sequence, non-zero powerRate reference signal configuration number, interferometry resource distribution set, configuration sequence and CQI to be feedback are required dryDisturb the number of hypothesis;
Feedback unit 503, for according to the configuration information of non-zero power reference signal, interferometry resource andPeriodic feedback reports moment configuration parameter, carries out one or more non-zero power in the moment that reports of settingThe feedback of the measured broad-band channel information of CSI-RS resource, each CSI-RS resource is based on one or moreDisturb the broadband CQI information of hypothesis.
Wherein, the broad-band channel information that one or more non-zero power CSI-RS resources are measured, specifically bagDraw together 1+Nresource+Nresource·(NCQI-1) plant Report Type, be respectively used to report RI, NresourceIndividual non-zero powerThe broadband P MI that CSI-RS resource is measured and NresourceThe individual broadband CQI letter that disturbs hypothesis based on the firstBreath, and NresourceThe measured N of individual non-zero power CSI-RS resourceresource·(NCQI-1) individual based on otherNCQI-1 is disturbed the broadband CQI information of hypothesis, wherein, and NresourceFor the non-zero power CSI-RS of feedbackThe number of the measured broad-band channel information of resource, NCQIFor each CSI-RS resource based on interference hypothesisThe number of broadband CQI information.
PMI determines based on the RI value that the last time reports, when not existing on RI and give the correct time, based on RI=1Determine;
CQI is definite with the last RI value reporting based on this or the last PMI value reporting, ifThis or do not exist before PMI to report, the PMI based on making an appointment determines.
That sets reported in the moment, for reporting NresourceThe measured broadband of individual non-zero power CSI-RS resourcePMI and NresourceThe individual broadband CQI information of disturbing hypothesis based on the first, and NresourceIndividual non-zero powerCSI-RS resource measured based on other NCQI-1 the broadband CQI information of disturbing to supposeNresource+Nresource·(NCQI-1) plant Report Type and there is the first identical report cycle and different subframe skewsAmount, the cycle of the Report Type reporting for RI is the integral multiple of the first report cycle, and its subframe skewAmount and Nresource+Nresource·(NCQI-1) sub-frame offset of kind Report Type is all not identical.
The embodiment of the present invention is the corresponding periodic feedback device that a kind of broad-band channel information is provided also, and this device canBe specially the network equipments such as base station, as shown in Figure 6, this device comprises:
Transmitting element 601, for sending the configuration of non-zero power reference signal, interferometry resource to terminalInformation and periodic feedback report moment configuration parameter;
Feedback receiving element 602, for reporting the one or more non-of moment receiving terminal feedback what setThe broad-band channel information that zero energy CSI-RS resource is measured, each CSI-RS resource is based on one or moreDisturb the broadband CQI information of hypothesis.
Wherein, the broad-band channel information that one or more non-zero power CSI-RS resources are measured, specifically bagDraw together 1+Nresource+Nresource·(NCQI-1) plant Report Type, be respectively used to report RI, NresourceIndividual non-zero powerThe broadband P MI that CSI-RS resource is measured and NresourceThe individual broadband CQI letter that disturbs hypothesis based on the firstBreath, and NresourceThe measured N of individual non-zero power CSI-RS resourceresource·(NCQI-1) individual based on otherNCQI-1 is disturbed the broadband CQI information of hypothesis, wherein, and NresourceFor the non-zero power CSI-RS of feedbackThe number of the measured broad-band channel information of resource, NCQIFor each CSI-RS resource based on interference hypothesisThe number of broadband CQI information.
PMI determines based on the RI value that the last time reports, when not existing on RI and give the correct time, based on RI=1Determine;
CQI is definite with the last RI value reporting based on this or the last PMI value reporting, ifThis or do not exist before PMI to report, the PMI based on making an appointment determines.
That sets reported in the moment, for reporting NresourceThe measured broadband of individual non-zero power CSI-RS resourcePMI and NresourceThe individual broadband CQI information of disturbing hypothesis based on the first, and NresourceIndividual non-zero powerCSI-RS resource measured based on other NCQI-1 the broadband CQI information of disturbing to supposeNresource+Nresource·(NCQI-1) plant Report Type and there is the first identical report cycle and different subframe skewsAmount, the cycle of the Report Type reporting for RI is the integral multiple of the first report cycle, and its subframe skewAmount and Nresource+Nresource·(NCQI-1) sub-frame offset of kind Report Type is all not identical.
The embodiment of the present invention is the corresponding periodic feedback system that a kind of broad-band channel information is provided also, as shown in Figure 7,Comprise:
Terminal 701, for receiving configuration information and the cycle of non-zero power reference signal, interferometry resourceFeedback reports moment configuration parameter; Determine the set of non-zero power reference signal configuration, configuration sequence, non-zero powerRate reference signal configuration number, interferometry resource distribution set, configuration sequence and CQI to be feedback are required dryDisturb the number of hypothesis; According to configuration information and the periodic feedback of non-zero power reference signal, interferometry resourceReport moment configuration parameter, carry out one or more non-zero power CSI-RS resources in the moment that reports of settingThe feedback of measured broad-band channel information, each CSI-RS resource is supposed based on one or more interferenceBroadband CQI information;
Network equipment 702, for sending joining of non-zero power reference signal, interferometry resource to terminalPut information and periodic feedback and report moment configuration parameter; And report one of moment receiving terminal feedback what setThe broad-band channel information that individual or multiple non-zero power CSI-RS resources are measured, each CSI-RS resource based onThe broadband CQI information of one or more interference hypothesis.
The embodiment of the present invention provides a kind of periodic feedback method, Apparatus and system of broad-band channel information, at endWhen end carries out periodic feedback, carry out the measured broad-band channel of one or more non-zero power CSI-RS resourcesThe feedback of information, and the broadband CQI information of each CSI-RS resource based on one or more interference hypothesis,Support one or more transfer points based on one or more CQI values based on disturbance hypothesis thereby realizeBroad-band channel information feedback.
The periodic feedback method of the broad-band channel information providing by patent working example of the present invention, install and beSystem, network side is by configuring the configuration letter of corresponding non-zero power reference signal, interferometry resource for end sideBreath and periodic feedback report the parameters such as moment configuration parameter, can in the subframe of expection, receive required oneOr multiple non-zero power CSI-RS resources measured based on one or more wide based on disturbance hypothesisBand channel information.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or meterCalculation machine program product. Therefore, the present invention can adopt complete hardware implementation example, completely implement software example or knotClose the form of the embodiment of software and hardware aspect. And the present invention can adopt at one or more wherein bagsThe computer-usable storage medium that contains computer usable program code (include but not limited to magnetic disc store,CD-ROM, optical memory etc.) form of the upper computer program of implementing.
The present invention is that reference is according to the method for the embodiment of the present invention, equipment (system) and computer program productThe flow chart of product and/or block diagram are described. Should understand can be by computer program instructions realization flow figure and/ or block diagram in each flow process and/or flow process in square frame and flow chart and/or block diagram and/Or the combination of square frame. Can provide these computer program instructions to all-purpose computer, special-purpose computer, embeddingThe processor of formula processor or other programmable data processing device, to produce a machine, makes by calculatingThe instruction that the processor of machine or other programmable data processing device is carried out produces for realizing at flow chart oneThe device of the function of specifying in square frame of individual flow process or multiple flow process and/or block diagram or multiple square frame.
These computer program instructions also can be stored in energy vectoring computer or other programmable data processing are establishedIn the standby computer-readable memory with ad hoc fashion work, make to be stored in this computer-readable memoryInstruction produce and comprise the manufacture of command device, this command device is realized in flow process or multiple of flow chartThe function of specifying in square frame of flow process and/or block diagram or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, makeMust on computer or other programmable devices, carry out sequence of operations step to produce computer implemented placeReason, thus the instruction of carrying out on computer or other programmable devices is provided for realizing one of flow chartThe step of the function of specifying in square frame of flow process or multiple flow process and/or block diagram or multiple square frame.
Although described the preferred embodiments of the present invention, once those skilled in the art obtain cicada baseThis creative concept, can make other change and amendment to these embodiment. So appended right is wantedAsk and be intended to be interpreted as comprising preferred embodiment and fall into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification and not depart from this present inventionBright spirit and scope. Like this, if of the present invention these amendment and modification belong to the claims in the present invention andWithin the scope of its equivalent technologies, the present invention be also intended to comprise these change and modification interior.
Claims (17)
1. a periodic feedback method for broad-band channel information, is characterized in that, comprising:
The configuration information and the periodic feedback that receive non-zero power reference signal, interferometry resource report the moment to joinPut parameter;
Determine the set of non-zero power reference signal configuration, configuration sequence, non-zero power reference signal configuration number,The required interference hypothesis of interferometry resource distribution set, configuration sequence and channel quality indicator (CQI) to be feedbackNumber;
According to giving the correct time in the configuration information of described non-zero power reference signal, interferometry resource and periodic feedbackCarve configuration parameter, carry out one or more non-zero channel state information reference signals in the moment that reports of settingThe feedback of the measured broad-band channel information of CSI-RS resource, broadband CQI information is based on one or moreDisturb hypothesis to calculate.
2. the method for claim 1, is characterized in that, described one or more non-zero powerThe broad-band channel information that CSI-RS resource is measured, specifically comprises 1+Nresource+Nresource·(NCQI-1) plant reportType, is respectively used to report order instruction RI, NresourceThe measured broadband of individual non-zero power CSI-RS resourcePre-coding matrix instruction PMI and NresourceThe individual broadband CQI information of disturbing hypothesis based on the first, andNresourceThe measured N of individual non-zero power CSI-RS resourceresource·(NCQI-1) individual based on other NCQI-1 dryDisturb the broadband CQI information of hypothesis, wherein, described NresourceFor the non-zero power CSI-RS resource institute of feedbackThe number of the broad-band channel information of measuring, described NCQIFor each CSI-RS resource based on interference hypothesisThe number of broadband CQI information.
3. method as claimed in claim 2, is characterized in that, described PMI reported based on the last timeRI value determine, when not existing on RI and give the correct time, determine based on RI=1;
Described CQI is definite with the last RI value reporting based on this or the last PMI value reporting,If this or do not exist before PMI to report, the PMI based on making an appointment determines.
4. the method for claim 1, is characterized in that, reporting in the moment of described setting, usesIn reporting NresourceBroadband P MI and N that individual non-zero power CSI-RS resource is measuredresourceIndividual based on the firstDisturb the broadband CQI information of hypothesis, and NresourceIndividual non-zero power CSI-RS resource measured based onOther NCQI-1 is disturbed the N of the broadband CQI information of hypothesisresource+Nresource·(NCQI-1) plant Report Type toolThere are the first identical report cycle and different sub-frame offsets, the cycle of the Report Type reporting for RIThe integral multiple of described the first report cycle, and its sub-frame offset and Nresource+Nresource·(NCQI-1) plant reportThe sub-frame offset of accusing type is all not identical.
5. a periodic feedback method for broad-band channel information, is characterized in that, comprising:
The configuration information from interferometry resource to terminal and the periodic feedback that send non-zero power reference signal, reportMoment configuration parameter;
At the one or more non-zero channel condition informations that report moment receiving terminal feedback of setting with reference to letterNumber measured broad-band channel information of CSI-RS resource, broad-band channel quality indicator (CQI) information is based on oneIndividual or multiple interference hypothesis calculate.
6. method as claimed in claim 5, is characterized in that, described one or more non-zero powerThe broad-band channel information that CSI-RS resource is measured, specifically comprises 1+Nresource+Nresource·(NCQI-1) plant reportType, is respectively used to report order instruction RI, NresourceThe measured broadband of individual non-zero power CSI-RS resourcePre-coding matrix instruction PMI and NresourceThe individual broadband CQI information of disturbing hypothesis based on the first, andNresourceThe measured N of individual non-zero power CSI-RS resourceresource·(NCQI-1) individual based on other NCQI-1 dryDisturb the broadband CQI information of hypothesis, wherein, described NresourceFor the non-zero power CSI-RS resource institute of feedbackThe number of the broad-band channel information of measuring, described NCQIFor each CSI-RS resource based on interference hypothesisThe number of broadband CQI information.
7. method as claimed in claim 6, is characterized in that, described PMI reported based on the last timeRI value determine, when not existing on RI and give the correct time, determine based on RI=1;
Described CQI is definite with the last RI value reporting based on this or the last PMI value reporting,If this or do not exist before PMI to report, the PMI based on making an appointment determines.
8. method as claimed in claim 5, is characterized in that, reporting in the moment of described setting, usesIn reporting NresourceBroadband P MI and N that individual non-zero power CSI-RS resource is measuredresourceIndividual based on the firstDisturb the broadband CQI information of hypothesis, and NresourceIndividual non-zero power CSI-RS resource measured based onOther NCQI-1 is disturbed the N of the broadband CQI information of hypothesisresource+Nresource·(NCQI-1) plant Report Type toolThere are the first identical report cycle and different sub-frame offsets, the cycle of the Report Type reporting for RIThe integral multiple of described the first report cycle, and its sub-frame offset and Nresource+Nresource·(NCQI-1) plant reportThe sub-frame offset of accusing type is all not identical.
9. a periodic feedback device for broad-band channel information, is characterized in that, comprising:
Receiving element, for receiving configuration information and the cycle of non-zero power reference signal, interferometry resourceFeedback reports moment configuration parameter;
Determining unit, for determining the set of non-zero power reference signal configuration, configuration sequence, non-zero power ginsengExamine signal configures number, interferometry resource distribution set, configuration sequence and channel quality to be feedback instructionThe number of the required interference hypothesis of CQI;
Feedback unit, for according to the configuration information of described non-zero power reference signal, interferometry resource andPeriodic feedback reports moment configuration parameter, carries out one or more non-zero channel status in the moment that reports of settingThe feedback of the measured broad-band channel information of information reference signal CSI-RS resource, broadband CQI information is baseCalculate in one or more interference hypothesis.
10. device as claimed in claim 9, is characterized in that, described one or more non-zero powerThe broad-band channel information that CSI-RS resource is measured, specifically comprises 1+Nresource+Nresource·(NCQI-1) plant reportType, is respectively used to report order instruction RI, NresourceThe measured broadband of individual non-zero power CSI-RS resourcePre-coding matrix instruction PMI and NresourceThe individual broadband CQI information of disturbing hypothesis based on the first, andNresourceThe measured N of individual non-zero power CSI-RS resourceresource·(NCQI-1) individual based on other NCQI-1 dryDisturb the broadband CQI information of hypothesis, wherein, described NresourceFor the non-zero power CSI-RS resource institute of feedbackThe number of the broad-band channel information of measuring, described NCQIFor each CSI-RS resource based on interference hypothesisThe number of broadband CQI information.
11. devices as claimed in claim 10, is characterized in that, described PMI is based on the last timeThe RI value of report is determined, when not existing on RI and give the correct time, is determined based on RI=1;
Described CQI is definite with the last RI value reporting based on this or the last PMI value reporting,If this or do not exist before PMI to report, the PMI based on making an appointment determines.
12. devices as claimed in claim 9, is characterized in that, reporting in the moment of described setting, usesIn reporting NresourceBroadband P MI and N that individual non-zero power CSI-RS resource is measuredresourceIndividual based on the firstDisturb the broadband CQI information of hypothesis, and NresourceIndividual non-zero power CSI-RS resource measured based onOther NCQI-1 is disturbed the N of the broadband CQI information of hypothesisresource+Nresource·(NCQI-1) plant Report Type toolThere are the first identical report cycle and different sub-frame offsets, the cycle of the Report Type reporting for RIThe integral multiple of described the first report cycle, and its sub-frame offset and Nresource+Nresource·(NCQI-1) plant reportThe sub-frame offset of accusing type is all not identical.
The periodic feedback device of 13. 1 kinds of broad-band channel information, is characterized in that, comprising:
Transmitting element, for sending the configuration information of non-zero power reference signal, interferometry resource to terminalReport moment configuration parameter with periodic feedback;
Feedback receiving element, for the one or more non-zero letters that report moment receiving terminal feedback of settingThe broad-band channel information that channel state information reference signal CSI-RS resource is measured, the instruction of broad-band channel qualityCQI information calculates based on one or more interference hypothesis.
14. devices as claimed in claim 13, is characterized in that, described one or more non-zero powerThe broad-band channel information that CSI-RS resource is measured, specifically comprises 1+Nresource+Nresource·(NCQI-1) plant reportType, is respectively used to report order instruction RI, NresourceThe measured broadband of individual non-zero power CSI-RS resourcePre-coding matrix instruction PMI and NresourceThe individual broadband CQI information of disturbing hypothesis based on the first, andNresourceThe measured N of individual non-zero power CSI-RS resourceresource·(NCQI-1) individual based on other NCQI-1 dryDisturb the broadband CQI information of hypothesis, wherein, described NresourceFor the non-zero power CSI-RS resource institute of feedbackThe number of the broad-band channel information of measuring, described NCQIFor each CSI-RS resource based on interference hypothesisThe number of broadband CQI information.
15. devices as claimed in claim 14, is characterized in that, described PMI is based on the last timeThe RI value of report is determined, when not existing on RI and give the correct time, is determined based on RI=1;
Described CQI is definite with the last RI value reporting based on this or the last PMI value reporting,If this or do not exist before PMI to report, the PMI based on making an appointment determines.
16. devices as claimed in claim 13, is characterized in that, the reporting in the moment of described setting,Be used for reporting NresourceBroadband P MI and N that individual non-zero power CSI-RS resource is measuredresourceIndividual based on firstPlant the broadband CQI information of disturbing hypothesis, and NresourceThe measured base of individual non-zero power CSI-RS resourceIn other NCQI-1 is disturbed the N of the broadband CQI information of hypothesisresource+Nresource·(NCQI-1) plant Report TypeThere is the first identical report cycle and different sub-frame offsets, the week of the Report Type reporting for RIPhase is the integral multiple of described the first report cycle, and its sub-frame offset and Nresource+Nresource·(NCQI-1) plantThe sub-frame offset of Report Type is all not identical.
The periodic feedback system of 17. 1 kinds of broad-band channel information, is characterized in that, comprising:
Terminal, for receiving configuration information and the periodic feedback of non-zero power reference signal, interferometry resourceReport moment configuration parameter; Determine the set of non-zero power reference signal configuration, configuration sequence, non-zero power ginsengExamine signal configures number, interferometry resource distribution set, configuration sequence and channel quality to be feedback instructionThe number of the required interference hypothesis of CQI; According to the configuration of described non-zero power reference signal, interferometry resourceInformation and periodic feedback report moment configuration parameter, carry out one or more non-zero letters in the moment that reports of settingThe feedback of the measured broad-band channel information of channel state information reference signal CSI-RS resource, broadband CQI letterBreath calculates based on one or more interference hypothesis;
Network equipment, for sending joining of non-zero power reference signal, interferometry resource to described terminalPut information and periodic feedback and report moment configuration parameter; And receive described terminal feedback in the moment that reports of settingThe measured broad-band channel information of one or more non-zero power CSI-RS resources, broadband CQI information isCalculate based on one or more interference hypothesis.
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| US10128927B2 (en) | 2014-05-19 | 2018-11-13 | Panasonic Intellectual Property Corporation Of America | Channel state information reporting enhancement for network assisted interference cancellation and suppression |
| CN105471544B (en) * | 2014-08-08 | 2020-03-31 | 中兴通讯股份有限公司 | Channel quality/state indication information processing method, device, terminal and base station |
| CN108476426B (en) * | 2016-01-25 | 2020-12-22 | 华为技术有限公司 | User equipment and method and device for sending periodic CSI |
| CN107222249B (en) * | 2016-03-21 | 2020-07-03 | 深圳市中兴微电子技术有限公司 | Channel state information acquisition method and device |
| CN109151887B (en) * | 2017-06-16 | 2023-10-24 | 华为技术有限公司 | Communication method and communication device |
| US20200274598A1 (en) * | 2017-09-22 | 2020-08-27 | Qualcomm Incorporated | Signaling design for non-pmi based csi feedback |
| CN108111254B (en) * | 2017-09-29 | 2021-10-26 | 中兴通讯股份有限公司 | Feedback method of channel state information, information transmission method and device |
| US11356228B2 (en) * | 2017-11-24 | 2022-06-07 | Ntt Docomo, Inc. | User terminal and radio communication method |
| CN110445565B (en) * | 2018-05-04 | 2021-11-19 | 中国移动通信有限公司研究院 | Broadband switching method, user terminal and network side equipment |
| CN111988757B (en) * | 2019-05-21 | 2021-09-24 | 上海朗帛通信技术有限公司 | Method and apparatus in a node used for wireless communication |
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