CN102291228B

CN102291228B - Channel state information feedback and receiving methods and equipment

Info

Publication number: CN102291228B
Application number: CN201110234587.9A
Authority: CN
Inventors: 张然然; 高秋彬; 彭莹; 陈文洪
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2011-08-16
Filing date: 2011-08-16
Publication date: 2014-08-06
Anticipated expiration: 2031-08-16
Also published as: CN102291228A

Abstract

The embodiment of the invention discloses a channel state information feedback method, channel state information feedback equipment, a channel state information receiving method and channel state information receiving equipment. By the technical scheme provided by the embodiment of the invention, user equipment feeds channel state information back to network side equipment in a periodic reporting mode supporting coordinated multiple point (CoMP) transmission, wherein a corresponding periodic reporting mode comprises a reporting type used for feeding the rank indication (RI) of a main transmission point back, a reporting type used for feeding a channel quality indicator (CQI) and a precoding matrix indicator (PMI) of the main transmission point back, and/or a reporting type used for feeding the CQI and PMI of a non-main transmission point back, and/or a reporting type used for feeding the CQI and PMI, based on the hypothesis of RI=1, of the main transmission point back. Therefore, various CoMP transmission schemes can be supported.

Description

The feedback of channel condition information, method of reseptance and equipment

Technical field

The present invention relates to communication technical field, particularly a kind of feedback of channel condition information, method of reseptance and equipment.

Background technology

LTE-A(Long Term Evolution-Advanced, senior Long Term Evolution) system adopts identical networking, when increasing substantially the availability of frequency spectrum, also can cause the signal fadeout of Cell Edge User serious, and be subject to the higher interference from other communities, therefore,, if signal fadeout and interference problem are not processed, will have a strong impact on the experience of Cell Edge User.

CoMP(Coordinated Multiple Point, multipoint cooperative) technology is by introducing information interaction and the joint transmission between many communities, can improve signal quality, and reduce presence of intercell interference, thereby increase substantially the data transmission performance of Cell Edge User.Wherein, coordinated multipoint transmission scheme can be divided into: DPS(Dynamic Point Selection, dynamic transmission point selection), CBF(Coordinated BeamForming, cooperative beam figuration), JT(Joint Transmission, joint transmission) or the hybrid plan of above 3 class transmission plans; For example, when DPS and CBF combine, main transfer point determines by Dynamic Selection, and and non-main transfer point outside cooperation transmission point between by combined dispatching, realize cooperative beam figuration.

In realizing process of the present invention, inventor finds at least to exist in prior art following problem:

In prior art, not in conjunction with channel up-downgoing reciprocity, support the cycle channel status information reports pattern of CoMP transmission.

Summary of the invention

The embodiment of the present invention provides a kind of feedback, method of reseptance and equipment of channel condition information, solves the problem not defining for the corresponding relation between the rear pre-coding matrix indication information of code book compression and code book index in existing technology.

For achieving the above object, the embodiment of the present invention provides a kind of feedback method of channel condition information on the one hand, comprising:

Terminal equipment is determined channel condition information based on channel estimation value;

Described terminal equipment utilization supports the cycle Report mode of multipoint cooperative CoMP transmission to feed back described channel condition information, and wherein, described cycle Report mode comprises:

For feeding back the Report Type of main transfer point order indication RI and for feeding back the Report Type of main transfer point channel quality indicator (CQI) and pre-coding matrix PMI; And/or,

For feeding back the Report Type of non-main transfer point CQI and PMI; And/or,

For feeding back the CQI based on RI=1 hypothesis of main transfer point and the Report Type of PMI.

On the other hand, the embodiment of the present invention also provides a kind of method of reseptance of channel condition information, comprising:

Network equipment utilization supports the cycle Report mode of multipoint cooperative CoMP transmission to receive the channel condition information of subscriber equipment feedback; Described cycle Report mode comprises: for feeding back the Report Type of main transfer point order indication RI and for feeding back the Report Type of main transfer point channel quality indicator (CQI) and pre-coding matrix PMI; And/or for feeding back the Report Type of non-main transfer point CQI and PMI; And/or for feeding back the CQI based on RI=1 hypothesis of main transfer point and the Report Type of PMI;

Described network equipment is processed according to described channel condition information.

On the other hand, the embodiment of the present invention also provides a kind of terminal equipment, comprising:

Determination module, for determining channel condition information based on channel estimation value;

Sending module, supports the cycle Report mode of multipoint cooperative CoMP transmission to feed back described channel condition information for utilizing, and wherein, described cycle Report mode comprises:

On the other hand, the embodiment of the present invention also provides a kind of network equipment, at least comprises:

Receiver module, supports the cycle Report mode of multipoint cooperative CoMP transmission to receive the channel condition information of subscriber equipment feedback for utilizing; Described cycle Report mode comprises: for feeding back the Report Type of main transfer point order indication RI and for feeding back the Report Type of main transfer point channel quality indicator (CQI) and pre-coding matrix PMI; And/or for feeding back the Report Type of non-main transfer point CQI and PMI; And/or for feeding back the CQI based on RI=1 hypothesis of main transfer point and the Report Type of PMI;

Processing module, for processing according to described channel condition information.

Compared with prior art, the embodiment of the present invention has the following advantages:

By the technical scheme of the application embodiment of the present invention, terminal equipment passes through to support the cycle Report mode of CoMP transmission to network equipment feeding back channel state information, thereby, can support various CoMP transmission plans.

Accompanying drawing explanation

In order to be illustrated more clearly in technical scheme of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is the schematic flow sheet of the feedback receiver method of a kind of channel condition information of proposing of the embodiment of the present invention;

Fig. 2 is the structural representation of a kind of terminal equipment of proposing of the embodiment of the present invention;

Fig. 3 is the structural representation of a kind of network equipment of proposing of the embodiment of the present invention.

Embodiment

Inventor notices in realizing process of the present invention: in real system, a transmission mode may comprise multiple transmission plan, supports that the pattern between all kinds of transmission plans is switched.In order to guarantee better transmission performance and the stability of a system, in the transmission mode of supporting CoMP to transmit, often need to support the switching to unicast.

System is by the different CSI-RS(Channel State Information Reference Signal of configuration, channel state information reference signals) make UE(User Equipment, terminal equipment, i.e. terminal equipment) can measure the down channel of each " transfer point ".It should be noted that " transfer point " may not be the transfer point of a physics, and may be a virtual transfer point, each virtual transmission be o'clock corresponding to a CSI-RS resource, the transfer point of one or more physics, consists of.

Realize after down channel measurement, according to the needed channel condition information of transmission plan, carry out information feedback.All kinds of transmission plans need corresponding channel condition information support.Such as, DPS needs the channel condition information of a plurality of transfer points, or the channel condition information of some transfer points and the corresponding CSI-RS index information of this transfer point.CBF and irrelevant JT need to main transfer point RI(Rank Indication, order indication) not limited channel condition information and the channel condition information based on RI=1 hypothesis of non-main transfer point.Relevant JT need to main transfer point the not limited channel condition information of RI, the channel condition information of the RI=1 of each transfer point, and the relative phase information of each transfer point.So-called main transfer point be in DPS and CBF to the transfer point of UE transmission data, if or JT while returning back to unicast to the transfer point of UE transmission data.

During actual realization, the mode that can feed back by classification realizes general feedback, to measuring assembly, (measuring assembly is that network is a transfer point set of UE configuration, UE need to observe the channel condition information of the transfer point in measuring assembly, the channel condition information of each transfer point feedback single-point and realization feedback), then distinguish phase information and/or the amplitude information between feedback transmission point.Network is based on the synthetic channel condition information that transfer point in measuring assembly is arrived to UE of this two parts information.

It is example that the measuring assembly of take comprises two transfer points, the channel of two transfer point UE be designated as respectively and, UE is that two transfer points are selected respectively pre-coding matrix with (the pre-coding matrix is here channel condition information), the phase place of two minizones and amplitude information can choose as follows:

Wherein, gbelong to predefined codebook set.If with columns be designated as m, gfor m* mdiagonal matrix, m=1 gdeteriorate to a scalar.

If gbe scalar, its codebook set A can be 16QAM(Quadrature Amplitute Modulation, quadrature amplitude modulation) point in planisphere:

Also can be QPSK(Quadrature Phase Shift Keying, the Quadrature Phase Shift Keying) point in planisphere:

In such scheme, UE puts on an equal footing all transfer points when feedback.And in fact, the effect in various schemes of these transfer points is not identical.In cooperative scheduling/wave beam forming and dynamic transmission point selection scheme, only have 1 point to send data to UE, the required precision meeting of the channel information of this transfer point is higher than other transfer point, and this transfer point should support space multiplexing transmission (allowing RANK >1).Dynamic transmission point selection scheme in fact only needs the channel condition information of 1 transfer point, and in order to support other scheme, the information of other transfer points also needs feedback, but not what meaning to dynamic transmission point selection scheme.JP scheme supports high RANK transmission can't bring obvious performance boost, but can bring very high complexity to feedback, and therefore, the feedback of support JP scheme only needs the channel condition information of the RANK 1 of each transfer point.

In addition, at existing LTE(Long Term Evolution, Long Term Evolution) in system, support two class information feedback modes, based on PUCCH(Physical Uplink Control Channel, Physical Uplink Control Channel) periodic feedback and based on PUSCH(Physical Uplink Shared Channel, Physical Uplink Shared Channel) aperiodic channel status information feedback.

As shown in table 1, in the periodic feedback based on PUCCH, comprise 4 class Report modes (reporting mode), be respectively pattern 1-0,2-0,1-1 and 2-1; As shown in table 2, various reports pattern comprises altogether 1,1a, 2,2a, 2b, 2c, 3,4,5,6 totally 10 kinds of Report Types (reporting type).Wherein, pattern 1-0 and 2-0 support not comprise the information feedback of PMI feedback, can be for the MIMO(Multiple-Input Multiple-Output in TDD system, multiple-input and multiple-output) transmission; Yet above Report mode all cannot be supported CoMP transmission.

Table 1

Table 2

Based on above-mentioned discovery, the embodiment of the present invention provides a kind of feedback method, method of reseptance and equipment thereof of channel condition information, UE passes through to support the cycle Report mode of CoMP transmission to network equipment reporting status information of channel, thereby can support various CoMP transmission plans.

Below in conjunction with the accompanying drawing in the present invention, the technical scheme in the present invention is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.

The embodiment of the present invention provides a kind of feedback receiver method (for UE side, being feeding back channel state information, for network equipment, is receiving channel state information) of channel condition information.

As shown in Figure 1, the schematic flow sheet of the feedback receiver method of a kind of channel condition information proposing for the embodiment of the present invention, specifically comprises the following steps:

Step S101, UE determine channel condition information based on channel estimation value.

Step S102, UE utilize the cycle Report mode feeding back channel state information of supporting CoMP transmission, and UE passes through PUCCH channel to network equipment (as eNB, base station etc.) feeding back channel state information.

Wherein, described cycle Report mode comprises:

For feeding back the Report Type of main transfer point RI and for feeding back the Report Type of main transfer point CQI and PMI; And/or,

In the embodiment of the present invention, in order to support CoMP transmission, in designed cycle Report mode, can comprise existing PUCCH Report Type (Reporting Type), also can comprise some new Report Types.Therefore, above-mentioned Report Type is described as follows:

Type one, for feeding back the Report Type of main transfer point RI and for feeding back the Report Type of main transfer point CQI and PMI.

In the embodiment of the present invention, described, for feeding back the Report Type of main transfer point RI, also comprise the corresponding CSI-RS numbering of main transfer point, this CSI-RS number information is B bit altogether.

In concrete enforcement scene, described is LTE/LTE-A PUCCH Report Type 3, Report Type 5 or Report Type 6 for feeding back the Report Type of main transfer point RI; Or,

Described is Report Type 3a, Report Type 5a or Report Type 6a for feeding back the Report Type of main transfer point RI, and wherein, Report Type 3a, Report Type 5a or Report Type 6a are improved Report Type 3, Report Type 5 or Report Type 6.

Wherein, described Report Type 3a is used for feeding back main transfer point RI and the corresponding CSI-RS numbering of main transfer point, described Report Type 5a is used for feeding back main transfer point RI, a PMI and the corresponding CSI-RS numbering of main transfer point, and described Report Type 6a is used for feeding back main transfer point RI, PTI and the corresponding CSI-RS numbering of main transfer point.

In concrete enforcement scene, for feeding back the Report Type of main transfer point CQI and PMI, specifically comprise LTE/LTE-A PUCCH Report Type 2, Report Type 2a, Report Type 2b, Report Type 2c, Report Type 1 and/or Report Type 1a.

Further, according to the difference of fed back content, can be specially as with Types Below:

(1) for feeding back the Report Type of main transfer point broadband P MI.

(2) for feeding back the Report Type of main transfer point broadband CQI and PMI.

(3) for feeding back the Report Type of main transfer point subband CQI and PMI.

(4) for feeding back the Report Type of main transfer point subband CQI.

In the technical scheme proposing in the embodiment of the present invention, described for feeding back the Report Type of main transfer point broadband P MI and/or also comprising the corresponding CSI-RS numbering of main transfer point for feeding back the Report Type of main transfer point broadband CQI and PMI, this CSI-RS number information is B bit altogether.

Further, according to particular content entrained in corresponding Report Type, the embodiment of the present invention proposes following Report Type.

Described is the improved Report Type 2a of Report Type 2a-e(for feeding back the Report Type of main transfer point broadband P MI), described Report Type 2a-e is used for feeding back main transfer point broadband the one PMI and the corresponding CSI-RS numbering of main transfer point.

Described is the improved Report Type 2 of Report Type 2-e(for feeding back the Report Type of main transfer point broadband CQI and PMI), the improved Report Type 2b of Report Type 2b-e() or the improved Report Type 2c of Report Type 2c-e().

Concrete, described Report Type 2-e is used for feeding back main transfer point broadband CQI and PMI, and the corresponding CSI-RS numbering of main transfer point, described Report Type 2b-e is used for feeding back CQIHe broadband, main transfer point broadband the 2nd PMI, and the corresponding CSI-RS numbering of main transfer point, described Report Type 2c-e is used for feeding back main transfer point broadband CQI, broadband the one PMI and broadband the 2nd PMI, and the corresponding CSI-RS numbering of main transfer point.

Described is Report Type 1a-e for feeding back the Report Type of main transfer point subband CQI and PMI, and described Report Type 1a-e is for feeding back main transfer point subband CQI and the PMI information that does not comprise subband location index information.

Described is Report Type 1-e for feeding back the Report Type of non-main transfer point subband CQI, and described Report Type 1-e is for feeding back the main transfer point subband CQI information that does not comprise subband location index information.

In actual application scenarios, main transfer point CQI and/or PMI in above-mentioned various report type, be specially:

The determined CQI of RI value and/or PMI value that described terminal equipment reported according to the last time;

If do not have RI to report before, for described terminal equipment basis is based on the preset rules definite determined CQI of RI value and/or PMI value.

Type two, for feeding back the Report Type of non-main transfer point CQI and PMI.

In concrete enforcement scene, for feeding back the Report Type of non-main transfer point CQI and PMI, specifically comprise with one or more of Types Below:

(1) for feeding back the broadband CQI based on RI=1 hypothesis of non-main transfer point and the Report Type of PMI, be specially Report Type 2d.

In concrete enforcement scene, described for feeding back the Report Type of non-main transfer point CQI and PMI, the phase information that also comprises the relatively main transfer point of described non-main transfer point, be specially broadband phase information, the bit number of each broadband phase information is B9, accordingly, described Report Type 2d can be for feeding back broadband CQI and the PMI based on RI=1 hypothesis of non-main transfer point, and the broadband phase information of the relatively main transfer point of described non-main transfer point.

(2) for feeding back the subband CQI based on RI=1 hypothesis of non-main transfer point and the Report Type of PMI, be specially Report Type 1b.

In concrete enforcement scene, described for feeding back the Report Type of non-main transfer point CQI and PMI, the phase information that also comprises the relatively main transfer point of described non-main transfer point, be specially subband phase information, the subband position that it reports with CQI is identical, the bit number of each subband phase information is B10, accordingly, described Report Type 1b can be for feeding back subband CQI and the PMI based on RI=1 hypothesis of non-main transfer point, and the subband phase information of the relatively main transfer point of described non-main transfer point.

It is to be noted, in one case, described Report Type 1b is for the subband CQI based on RI=1 hypothesis that feeds back the non-main transfer point that do not comprise subband location index information and PMI or feed back the subband CQI and the subband phase information of PMI with the relative main transfer point of described non-main transfer point based on RI=1 hypothesis of non-main transfer point, and described subband CQI, PMI and/or the corresponding subband of phase information position are with the last main transfer point subband CQI and/or the PMI information of feeding back is corresponding identical with reference to frequency domain resource position before.

In another case, described Report Type 1b comprises subband location index information.

In actual application scenarios, due to non-main transfer point, that the quantified precision of PMI and CQI feedback is compared to main transfer point is lower, the information bit that PMI/CQI in Report Type 2d and/or 1b comprises can be less than respective antenna port in main transfer point, the information bit that PMI/CQI during the corresponding data number of plies comprises, , CQI quantification gradation and code book to non-main transfer point compress, the information bit that the CQI information of each code word in Report Type 2d and/or Report Type 1b comprises is less than 4 bits and/or PMI information is selected from a codebook subset, described codebook subset is set for non-main transfer point PMI feedback.

As, the bit number of broadband single codeword CQI and subband single codeword CQI is respectively B1 or B2 bit, and number of transmit antennas is respectively in 2,4,8 situation, and the bit number of broadband P MI is respectively B3, B4, B5, and the bit number of subband PMI is respectively B6, B7 and B8.

Type three, described for feeding back the CQI based on RI=1 hypothesis of main transfer point and the Report Type of PMI.

In actual application scenarios, the above-mentioned type specifically comprises with one or more of Types Below:

(1) for feeding back the broadband CQI based on RI=1 hypothesis of main transfer point and the Report Type of PMI, be specially Report Type 2e.

In concrete enforcement scene, described Report Type 2e is for feeding back broadband CQI and the PMI based on RI=1 hypothesis of main transfer point, and the corresponding CSI-RS numbering of main transfer point, and this this CSI-RS number information is B bit altogether.

(2) for feeding back the subband CQI based on RI=1 hypothesis of main transfer point and the Report Type of PMI, be specially Report Type 1c.

In concrete enforcement scene, under a kind of scene, described Report Type 1c is for feeding back the subband CQI that does not comprise subband location index information based on RI=1 hypothesis and PMI and/or the corresponding CSI-RS numbering of main transfer point of main transfer point, this CSI-RS number information is B bit altogether, described subband CQI with the corresponding subband of PMI information position with the last main transfer point subband CQI and/or the PMI information of feeding back is corresponding identical with reference to frequency domain resource position before.

Under another kind of scene, described Report Type 1c comprises subband location index information.

Concrete, in Report Type 2e and Report Type 1c, the PMI bit number of 8 antenna ports is respectively B11 and B12.

Further, the RI information reporting in described terminal equipment the last time is 1 o'clock, and described terminal equipment abandons reporting Report Type 2e and/or Report Type 1c.

It should be noted that, the report cycle of channel condition information with report timing off-set amount to carry out semi-static control by high-level signaling, and report cycle and report timing off-set amount to carry out separate configurations.Further, the Report Type that the various combination of reporting source of channel state information content is corresponding different, and priority corresponding to different Report Types; When according to the report cycle of each Report Type when reporting timing off-set amount to determine to bump between different Report Types, UE selects the Report Type of high priority to report.

Particularly, a kind of Report mode comprises above-mentioned partial report type, and the Report Type set comprising is when different, is different Report modes; In above-mentioned new Report mode, can also increase other Report Type, and in this report pattern, the report cycle of each Report Type with report timing off-set amount to carry out semi-static control by high-level signaling, and its report cycle can separate configurations with the timing off-set amount that reports.In the embodiment of the present invention, need to be in advance for each Report Type using in new Report mode distributes different priority, and work as according to the report cycle of each Report Type and timing off-set, determine when bumping between different Report Types, UE need to select the Report Type of high priority to report, and abandons the Report Type of low priority.

In the embodiment of the present invention, in order to guarantee that network equipment can obtain the frequency selectivity information of down channel, and keep as far as possible lower PUCCH feedback overhead, on subband, give the correct time and can adopt the mode that the polling mode of YiBPWei unit is carried out or YiBPWei unit carries out subband selection to carry out, and indicate by the subband index (subband lable) of L bit.

Based on above-mentioned situation, the Report mode that the embodiment of the present invention provides can be as shown in table 3.

Table 3

Wherein, L represents the information bit that subband positional information comprises.

The channel condition information of the UE side feedback based on above-mentioned, at network side, can also comprise the following steps:

Step S103, network equipment utilization supports the cycle Report mode of CoMP transmission to receive the channel condition information of UE feedback.

The explanation of corresponding cycle Report mode, referring to aforementioned description, is not repeated.

Step 104, network equipment is processed according to channel condition information.In this processing procedure embodiment of the present invention, repeat no longer in detail.

By the technical scheme of the application embodiment of the present invention, terminal equipment is by supporting the cycle Report mode of CoMP transmission to network equipment feeding back channel state information, wherein, corresponding cycle Report mode comprises: for feeding back the Report Type of main transfer point order indication RI and for feeding back the Report Type of main transfer point channel quality indicator (CQI) and pre-coding matrix PMI; And/or for feeding back the Report Type of non-main transfer point CQI and PMI; And/or for feeding back the CQI based on RI=1 hypothesis of main transfer point and the Report Type of PMI, thereby, can support various CoMP transmission plans.

In order to realize the technical scheme of the embodiment of the present invention, the embodiment of the present invention has also proposed a kind of terminal equipment, and its structural representation as shown in Figure 2, specifically comprises:

Determination module 21, for determining channel condition information based on channel estimation value;

Sending module 22, supports the cycle Report mode of multipoint cooperative CoMP transmission to feed back described channel condition information for utilizing, and wherein, described cycle Report mode comprises:

Wherein, described is LTE/LTE-A Physical Uplink Control Channel PUCCH Report Type 3, Report Type 5 or Report Type 6 for feeding back the Report Type of main transfer point RI.

In concrete enforcement scene, described, for feeding back the Report Type of main transfer point RI, also comprise the corresponding channel state information reference signals CSI-RS numbering of main transfer point.

Wherein, described is Report Type 3a, Report Type 5a or Report Type 6a for feeding back the Report Type of main transfer point RI, described Report Type 3a, for feeding back the corresponding CSI-RS of main transfer point RI and main transfer point numbering, described Report Type 5a, for feeding back the corresponding CSI-RS of main transfer point RI, a PMI and main transfer point numbering, described Report Type 6a is used for feeding back main transfer point RI, precoding type indication PTI and the corresponding CSI-RS numbering of main transfer point.

On the other hand, described for feeding back the Report Type of main transfer point CQI and PMI, specifically comprise:

For feeding back the Report Type of main transfer point broadband P MI; And/or,

For feeding back the Report Type of main transfer point broadband CQI and PMI; And/or,

For feeding back the Report Type of main transfer point subband CQI and PMI; And/or,

For feeding back the Report Type of main transfer point subband CQI.

Concrete, described is LTE/LTE-A PUCCH Report Type 2, Report Type 2a, Report Type 2b, Report Type 2c, Report Type 1 and/or Report Type 1a for feeding back the Report Type of main transfer point CQI and PMI.

Wherein, described for feeding back the Report Type of main transfer point broadband P MI and/or also comprising the corresponding channel state information reference signals CSI-RS numbering of main transfer point for feeding back the Report Type of main transfer point broadband CQI and PMI.

Described is Report Type 2a-e for feeding back the Report Type of main transfer point broadband P MI, and described Report Type 2a-e is used for feeding back main transfer point broadband the one PMI and the corresponding CSI-RS numbering of main transfer point.

Described is Report Type 2-e for feeding back the Report Type of main transfer point broadband CQI and PMI, Report Type 2b-e, or Report Type 2c-e, described Report Type 2-e is used for feeding back main transfer point broadband CQI and PMI, and the corresponding CSI-RS numbering of main transfer point, described Report Type 2b-e is used for feeding back CQIHe broadband, main transfer point broadband the 2nd PMI, and the corresponding CSI-RS numbering of main transfer point, described Report Type 2c-e is used for feeding back main transfer point broadband CQI, broadband the one PMI and broadband the 2nd PMI, and the corresponding CSI-RS numbering of main transfer point.

Wherein, described main transfer point CQI and/or PMI, be specially:

On the other hand, described for feeding back the Report Type of non-main transfer point CQI and PMI, specifically comprise:

For feeding back the broadband CQI based on RI=1 hypothesis of non-main transfer point and the Report Type of PMI; And/or,

For feeding back the subband CQI based on RI=1 hypothesis of non-main transfer point and the Report Type of PMI;

Wherein, described is Report Type 2d for feeding back the broadband CQI based on RI=1 hypothesis of non-main transfer point and the Report Type of PMI;

Described is Report Type 1b for feeding back the subband CQI based on RI=1 hypothesis of non-main transfer point and the Report Type of PMI.

Further, described, for feeding back the Report Type of non-main transfer point CQI and PMI, also comprise the phase information of the relatively main transfer point of described non-main transfer point.

Concrete, described Report Type 2d is for feeding back broadband CQI and the PMI based on RI=1 hypothesis of non-main transfer point, and the broadband phase information of the relatively main transfer point of described non-main transfer point.

Described Report Type 1b is for feeding back subband CQI and the PMI based on RI=1 hypothesis of non-main transfer point, and the subband phase information of the relatively main transfer point of described non-main transfer point.

Wherein, described Report Type 1b is for the subband CQI based on RI=1 hypothesis that feeds back the non-main transfer point that do not comprise subband location index information and PMI or feed back the subband CQI and the subband phase information of PMI with the relative main transfer point of described non-main transfer point based on RI=1 hypothesis of non-main transfer point, and described subband CQI, PMI and/or the corresponding subband of phase information position are with the last main transfer point subband CQI and/or the PMI information of feeding back is corresponding identical with reference to frequency domain resource position before.

In another kind of situation, described Report Type 1b comprises subband location index information.

It is to be noted, the information bit that the CQI information of each code word in Report Type 2d and/or Report Type 1b comprises is less than 4 bits and/or PMI information is selected from a codebook subset, and described codebook subset is set for non-main transfer point PMI feedback.

On the other hand, described for feeding back the CQI based on RI=1 hypothesis of main transfer point and the Report Type of PMI, specifically comprise:

For feeding back the broadband CQI based on RI=1 hypothesis of main transfer point and the Report Type of PMI; And/or,

For feeding back the subband CQI based on RI=1 hypothesis of main transfer point and the Report Type of PMI;

Wherein, described is Report Type 2e for feeding back the broadband CQI based on RI=1 hypothesis of main transfer point and the Report Type of PMI;

Described is Report Type 1c for feeding back the subband CQI based on RI=1 hypothesis of main transfer point and the Report Type of PMI.

Concrete, described Report Type 2e is for feeding back broadband CQI and the PMI based on RI=1 hypothesis of main transfer point, and the corresponding CSI-RS numbering of main transfer point.

Described Report Type 1c is for feeding back the subband CQI that does not comprise subband location index information based on RI=1 hypothesis and PMI and/or the corresponding CSI-RS numbering of main transfer point of main transfer point, described subband CQI with the corresponding subband of PMI information position with the last main transfer point subband CQI and/or the PMI information of feeding back is corresponding identical with reference to frequency domain resource position before.

At another kind, implement in scene, described Report Type 1c comprises subband location index information.

Wherein, described sending module 22, is 1 o'clock specifically for the RI information reporting in the last time, abandons reporting Report Type 2e and/or Report Type 1c.

The report cycle of described channel condition information with report timing off-set amount to carry out semi-static control by high-level signaling, and described report cycle with report timing off-set amount to carry out separate configurations.

Wherein, the Report Type that the various combination of described reporting source of channel state information content is corresponding different, and priority corresponding to different Report Types; When according to the report cycle of each Report Type when reporting timing off-set amount to determine to bump between different Report Types, described sending module 22, for selecting the Report Type of high priority to report.

On the other hand, the embodiment of the present invention also provides a kind of network equipment, and its structural representation as shown in Figure 3, comprising:

Receiver module 31, supports the cycle Report mode of multipoint cooperative CoMP transmission to receive the channel condition information of subscriber equipment feedback for utilizing; Described cycle Report mode comprises: for feeding back the Report Type of main transfer point order indication RI and for feeding back the Report Type of main transfer point channel quality indicator (CQI) and pre-coding matrix PMI; And/or for feeding back the Report Type of non-main transfer point CQI and PMI; And/or for feeding back the CQI based on RI=1 hypothesis of main transfer point and the Report Type of PMI;

Processing module 32, for processing according to described channel condition information.

Wherein, described, for feeding back the Report Type of main transfer point RI, also comprise the corresponding channel state information reference signals CSI-RS numbering of main transfer point.

Wherein, described for feeding back the Report Type of main transfer point CQI and PMI, specifically comprise:

For feeding back the Report Type of main transfer point broadband P MI; And/or,

For feeding back the Report Type of main transfer point subband CQI.

Wherein, described for feeding back the Report Type of non-main transfer point CQI and PMI, specifically comprise:

For feeding back the subband CQI based on RI=1 hypothesis of non-main transfer point and the Report Type of PMI.

Described, for feeding back the Report Type of non-main transfer point CQI and PMI, also comprise the phase information of the relatively main transfer point of described non-main transfer point.

Wherein, described for feeding back the CQI based on RI=1 hypothesis of main transfer point and the Report Type of PMI, specifically comprise:

For feeding back the subband CQI based on RI=1 hypothesis of main transfer point and the Report Type of PMI.

Wherein, the report cycle of described channel condition information with report timing off-set amount to carry out semi-static control by high-level signaling, and described report cycle with report timing off-set amount to carry out separate configurations.

Through the above description of the embodiments, those skilled in the art can be well understood to the embodiment of the present invention and can realize by hardware, and the mode that also can add necessary general hardware platform by software realizes.Understanding based on such, the technical scheme of the embodiment of the present invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise some instructions with so that computer equipment (can be personal computer, server, or the network equipment etc.) carry out the embodiment of the present invention each implement the method described in scene.

It will be appreciated by those skilled in the art that accompanying drawing is a schematic diagram of preferably implementing scene, the module in accompanying drawing or flow process might not be that the enforcement embodiment of the present invention is necessary.

It will be appreciated by those skilled in the art that the module in the device of implementing in scene can be distributed in the device of implementing scene according to implementing scene description, also can carry out respective change and be arranged in the one or more devices that are different from this enforcement scene.The module of above-mentioned enforcement scene can be merged into a module, also can further split into a plurality of submodules.

The invention described above embodiment sequence number, just to describing, does not represent the quality of implementing scene.

Disclosed is above only the several concrete enforcement scene of the embodiment of the present invention, and still, the embodiment of the present invention is not limited thereto, and the changes that any person skilled in the art can think of all should fall into the traffic limits scope of the embodiment of the present invention.

Claims

1. a feedback method for channel condition information, is characterized in that, at least comprises the following steps:

Described terminal equipment utilization supports the cycle Report mode of multipoint cooperative CoMP transmission to feed back described channel condition information, and wherein, described cycle Report mode comprises at least two kinds in following Report Type:

For feeding back the Report Type of main transfer point order indication RI and for feeding back the Report Type of main transfer point channel quality indicator (CQI) and pre-coding matrix PMI;

For feeding back the Report Type of non-main transfer point CQI and PMI;

2. the method for claim 1, is characterized in that, described is LTE/LTE-A Physical Uplink Control Channel PUCCH Report Type 3, Report Type 5 or Report Type 6 for feeding back the Report Type of main transfer point RI.

3. the method for claim 1, is characterized in that, described, for feeding back the Report Type of main transfer point RI, also comprises:

The corresponding channel state information reference signals CSI-RS numbering of main transfer point.

4. method as claimed in claim 3, it is characterized in that, described is Report Type 3a, Report Type 5a or Report Type 6a for feeding back the Report Type of main transfer point RI, described Report Type 3a is used for feeding back main transfer point RI and the corresponding CSI-RS numbering of main transfer point, described Report Type 5a is used for feeding back main transfer point RI, a PMI and the corresponding CSI-RS numbering of main transfer point, and described Report Type 6a is used for feeding back main transfer point RI, precoding type indication PTI and the corresponding CSI-RS numbering of main transfer point.

5. the method for claim 1, is characterized in that, described for feeding back the Report Type of main transfer point CQI and PMI, specifically comprises:

For feeding back the Report Type of main transfer point broadband P MI; And/or,

For feeding back the Report Type of main transfer point subband CQI.

6. method as claimed in claim 5, it is characterized in that, described is LTE/LTE-A PUCCH Report Type 2, Report Type 2a, Report Type 2b, Report Type 2c, Report Type 1 and/or Report Type 1a for feeding back the Report Type of main transfer point CQI and PMI.

7. method as claimed in claim 5, is characterized in that, described for feeding back the Report Type of main transfer point broadband P MI and/or also comprising for feeding back the Report Type of main transfer point broadband CQI and PMI:

8. method as claimed in claim 7, it is characterized in that, described is Report Type 2a-e for feeding back the Report Type of main transfer point broadband P MI, and described Report Type 2a-e is used for feeding back main transfer point broadband the one PMI and the corresponding CSI-RS numbering of main transfer point.

9. method as claimed in claim 7, it is characterized in that, described is Report Type 2-e for feeding back the Report Type of main transfer point broadband CQI and PMI, Report Type 2b-e, or Report Type 2c-e, described Report Type 2-e is used for feeding back main transfer point broadband CQI and PMI, and the corresponding CSI-RS numbering of main transfer point, described Report Type 2b-e is used for feeding back CQIHe broadband, main transfer point broadband the 2nd PMI, and the corresponding CSI-RS numbering of main transfer point, described Report Type 2c-e is used for feeding back main transfer point broadband CQI, broadband the one PMI and broadband the 2nd PMI, and the corresponding CSI-RS numbering of main transfer point.

10. method as claimed in claim 5, it is characterized in that, described is Report Type 1a-e for feeding back the Report Type of main transfer point subband CQI and PMI, and described Report Type 1a-e is for feeding back main transfer point subband CQI and the PMI information that does not comprise subband location index information.

11. methods as claimed in claim 5, is characterized in that, described is Report Type 1-e for feeding back the Report Type of non-main transfer point subband CQI, and described Report Type 1-e is for feeding back the main transfer point subband CQI information that does not comprise subband location index information.

12. methods as described in any one in claim 2 to 11, is characterized in that, described main transfer point CQI and/or PMI value, be specially:

13. the method for claim 1, is characterized in that, described for feeding back the Report Type of non-main transfer point CQI and PMI, specifically comprise:

14. methods as claimed in claim 13, is characterized in that, described, for feeding back the Report Type of non-main transfer point CQI and PMI, also comprise:

The phase information of the relatively main transfer point of described non-main transfer point.

15. methods as claimed in claim 14, is characterized in that, described Report Type 2d is for feeding back broadband CQI and the PMI based on RI=1 hypothesis of non-main transfer point, and the broadband phase information of the relatively main transfer point of described non-main transfer point.

16. methods as claimed in claim 14, is characterized in that, described Report Type 1b is for feeding back subband CQI and the PMI based on RI=1 hypothesis of non-main transfer point, and the subband phase information of the relatively main transfer point of described non-main transfer point.

17. methods as described in claim 13 or 16, it is characterized in that, described Report Type 1b is for the subband CQI based on RI=1 hypothesis that feeds back the non-main transfer point that do not comprise subband location index information and PMI or feed back the subband CQI and the subband phase information of PMI with the relative main transfer point of described non-main transfer point based on RI=1 hypothesis of non-main transfer point, and described subband CQI, PMI and/or the corresponding subband of phase information position are with the last main transfer point subband CQI and/or the PMI information of feeding back is corresponding identical with reference to frequency domain resource position before.

18. methods as claimed in claim 13, is characterized in that, described Report Type 1b comprises subband location index information.

19. methods as claimed in claim 13, it is characterized in that, the information bit that the CQI information of each code word in Report Type 2d and/or Report Type 1b comprises is less than 4 bits and/or PMI information is selected from a codebook subset, and described codebook subset is set for non-main transfer point PMI feedback.

20. the method for claim 1, is characterized in that, described for feeding back the CQI based on RI=1 hypothesis of main transfer point and the Report Type of PMI, specifically comprise:

21. methods as claimed in claim 20, is characterized in that, described Report Type 2e is for feeding back broadband CQI and the PMI based on RI=1 hypothesis of main transfer point, and the corresponding CSI-RS numbering of main transfer point.

22. methods as claimed in claim 20, it is characterized in that, described Report Type 1c is for feeding back the subband CQI that does not comprise subband location index information based on RI=1 hypothesis and PMI and/or the corresponding CSI-RS numbering of main transfer point of main transfer point, described subband CQI with the corresponding subband of PMI information position with the last main transfer point subband CQI and/or the PMI information of feeding back is corresponding identical with reference to frequency domain resource position before.

23. methods as claimed in claim 20, is characterized in that, described Report Type 1c comprises subband location index information.

24. methods as claimed in claim 20, is characterized in that, the RI information reporting in described terminal equipment the last time is 1 o'clock, and described terminal equipment abandons reporting Report Type 2e and/or Report Type 1c.

25. methods as described in any one in claim 1-11,13-16,18-24, it is characterized in that, the report cycle of described channel condition information with report timing off-set amount to carry out semi-static control by high-level signaling, and described report cycle with report timing off-set amount to carry out separate configurations.

26. methods as claimed in claim 25, is characterized in that, the Report Type corresponding to various combination of described reporting source of channel state information content, and priority corresponding to different Report Types;

When according to the report cycle of each Report Type when reporting timing off-set amount to determine to bump between different Report Types, described terminal equipment selects the Report Type of high priority to report.

The method of reseptance of 27. 1 kinds of channel condition informations, is characterized in that, at least comprises the following steps:

Network equipment utilization supports the cycle Report mode of multipoint cooperative CoMP transmission to receive the channel condition information of subscriber equipment feedback; Described cycle Report mode comprises at least two kinds in following Report Type: for feeding back the Report Type of main transfer point order indication RI and for feeding back the Report Type of main transfer point channel quality indicator (CQI) and pre-coding matrix PMI; For feeding back the Report Type of non-main transfer point CQI and PMI; For feeding back the CQI based on RI=1 hypothesis of main transfer point and the Report Type of PMI;

28. methods as claimed in claim 27, is characterized in that, described, for feeding back the Report Type of main transfer point RI, also comprise:

29. methods as claimed in claim 27, is characterized in that, described for feeding back the Report Type of main transfer point CQI and PMI, specifically comprise:

For feeding back the Report Type of main transfer point broadband P MI; And/or,

For feeding back the Report Type of main transfer point subband CQI.

30. methods as claimed in claim 27, is characterized in that, described for feeding back the Report Type of non-main transfer point CQI and PMI, specifically comprise:

31. methods as claimed in claim 27, is characterized in that, described for feeding back the CQI based on RI=1 hypothesis of main transfer point and the Report Type of PMI, specifically comprise:

32. methods as described in claim 27-31 any one, is characterized in that, the report cycle of described channel condition information with report timing off-set amount to carry out semi-static control by high-level signaling, and described report cycle with report timing off-set amount to carry out separate configurations.

33. 1 kinds of terminal equipments, is characterized in that, at least comprise:

Sending module, supports the cycle Report mode of multipoint cooperative CoMP transmission to feed back described channel condition information for utilizing, and wherein, described cycle Report mode comprises at least two kinds in following Report Type:

For feeding back the Report Type of non-main transfer point CQI and PMI;

34. terminal equipments as claimed in claim 33, is characterized in that, described is LTE/LTE-A Physical Uplink Control Channel PUCCH Report Type 3, Report Type 5 or Report Type 6 for feeding back the Report Type of main transfer point RI.

35. terminal equipments as claimed in claim 33, is characterized in that, described, for feeding back the Report Type of main transfer point RI, also comprise:

36. terminal equipments as claimed in claim 35, it is characterized in that, described is Report Type 3a, Report Type 5a or Report Type 6a for feeding back the Report Type of main transfer point RI, described Report Type 3a, for feeding back the corresponding CSI-RS of main transfer point RI and main transfer point numbering, described Report Type 5a, for feeding back the corresponding CSI-RS of main transfer point RI, a PMI and main transfer point numbering, described Report Type 6a is used for feeding back main transfer point RI, precoding type indication PTI and the corresponding CSI-RS numbering of main transfer point.

37. terminal equipments as claimed in claim 33, is characterized in that, described for feeding back the Report Type of main transfer point CQI and PMI, specifically comprise:

For feeding back the Report Type of main transfer point broadband P MI; And/or,

For feeding back the Report Type of main transfer point subband CQI.

38. terminal equipments as claimed in claim 37, it is characterized in that, described is LTE/LTE-A PUCCH Report Type 2, Report Type 2a, Report Type 2b, Report Type 2c, Report Type 1 and/or Report Type 1a for feeding back the Report Type of main transfer point CQI and PMI.

39. terminal equipments as claimed in claim 37, is characterized in that, described for feeding back the Report Type of main transfer point broadband P MI and/or also comprising for feeding back the Report Type of main transfer point broadband CQI and PMI:

40. terminal equipments as claimed in claim 39, it is characterized in that, described is Report Type 2a-e for feeding back the Report Type of main transfer point broadband P MI, and described Report Type 2a-e is used for feeding back main transfer point broadband the one PMI and the corresponding CSI-RS numbering of main transfer point.

41. terminal equipments as claimed in claim 39, it is characterized in that, described is Report Type 2-e for feeding back the Report Type of main transfer point broadband CQI and PMI, Report Type 2b-e, or Report Type 2c-e, described Report Type 2-e is used for feeding back main transfer point broadband CQI and PMI, and the corresponding CSI-RS numbering of main transfer point, described Report Type 2b-e is used for feeding back CQIHe broadband, main transfer point broadband the 2nd PMI, and the corresponding CSI-RS numbering of main transfer point, described Report Type 2c-e is used for feeding back main transfer point broadband CQI, broadband the one PMI and broadband the 2nd PMI, and the corresponding CSI-RS numbering of main transfer point.

42. terminal equipments as claimed in claim 37, it is characterized in that, described is Report Type 1a-e for feeding back the Report Type of main transfer point subband CQI and PMI, and described Report Type 1a-e is for feeding back main transfer point subband CQI and the PMI information that does not comprise subband location index information.

43. terminal equipments as claimed in claim 37, it is characterized in that, described is Report Type 1-e for feeding back the Report Type of non-main transfer point subband CQI, and described Report Type 1-e is for feeding back the main transfer point subband CQI information that does not comprise subband location index information.

44. terminal equipments as described in any one in claim 34 to 43, is characterized in that, described main transfer point CQI and/or PMI, be specially:

45. terminal equipments as claimed in claim 33, is characterized in that, described for feeding back the Report Type of non-main transfer point CQI and PMI, specifically comprise:

46. terminal equipments as claimed in claim 45, is characterized in that, described, for feeding back the Report Type of non-main transfer point CQI and PMI, also comprise:

47. terminal equipments as claimed in claim 46, is characterized in that,

Described Report Type 2d is for feeding back broadband CQI and the PMI based on RI=1 hypothesis of non-main transfer point, and the broadband phase information of the relatively main transfer point of described non-main transfer point.

48. terminal equipments as claimed in claim 46, is characterized in that,

49. terminal equipments as described in claim 45 or 48, is characterized in that,

Described Report Type 1b is for the subband CQI based on RI=1 hypothesis that feeds back the non-main transfer point that do not comprise subband location index information and PMI or feed back the subband CQI and the subband phase information of PMI with the relative main transfer point of described non-main transfer point based on RI=1 hypothesis of non-main transfer point, and described subband CQI, PMI and/or the corresponding subband of phase information position are with the last main transfer point subband CQI and/or the PMI information of feeding back is corresponding identical with reference to frequency domain resource position before.

50. terminal equipments as claimed in claim 45, is characterized in that, described Report Type 1b comprises subband location index information.

51. terminal equipments as claimed in claim 45, it is characterized in that, the information bit that the CQI information of each code word in Report Type 2d and/or Report Type 1b comprises is less than 4 bits and/or PMI information is selected from a codebook subset, and described codebook subset is set for non-main transfer point PMI feedback.

52. terminal equipments as claimed in claim 33, is characterized in that, described for feeding back the CQI based on RI=1 hypothesis of main transfer point and the Report Type of PMI, specifically comprise:

53. terminal equipments as claimed in claim 52, is characterized in that, described Report Type 2e is for feeding back broadband CQI and the PMI based on RI=1 hypothesis of main transfer point, and the corresponding CSI-RS numbering of main transfer point.

54. terminal equipments as claimed in claim 52, it is characterized in that, described Report Type 1c is for feeding back the subband CQI that does not comprise subband location index information based on RI=1 hypothesis and PMI and/or the corresponding CSI-RS numbering of main transfer point of main transfer point, described subband CQI with the corresponding subband of PMI information position with the last main transfer point subband CQI and/or the PMI information of feeding back is corresponding identical with reference to frequency domain resource position before.

55. terminal equipments as claimed in claim 52, is characterized in that, described Report Type 1c comprises subband location index information.

56. terminal equipments as claimed in claim 52, is characterized in that, described sending module is 1 o'clock specifically for the RI information reporting in the last time, abandons reporting Report Type 2e and/or Report Type 1c.

57. terminal equipments as described in any one in claim 33-43,45-48,50-56, it is characterized in that, the report cycle of described channel condition information with report timing off-set amount to carry out semi-static control by high-level signaling, and described report cycle with report timing off-set amount to carry out separate configurations.

58. terminal equipments as claimed in claim 57, is characterized in that, the Report Type corresponding to various combination of described reporting source of channel state information content, and priority corresponding to different Report Types; When according to the report cycle of each Report Type when reporting timing off-set amount to determine to bump between different Report Types, described sending module, for selecting the Report Type of high priority to report.

59. 1 kinds of network equipments, is characterized in that, at least comprise:

Receiver module, supports the cycle Report mode of multipoint cooperative CoMP transmission to receive the channel condition information of subscriber equipment feedback for utilizing; Described cycle Report mode comprises at least two kinds in following Report Type: for feeding back the Report Type of main transfer point order indication RI and for feeding back the Report Type of main transfer point channel quality indicator (CQI) and pre-coding matrix PMI; For feeding back the Report Type of non-main transfer point CQI and PMI; For feeding back the CQI based on RI=1 hypothesis of main transfer point and the Report Type of PMI;

60. network equipments as claimed in claim 59, is characterized in that, described, for feeding back the Report Type of main transfer point RI, also comprise:

61. network equipments as claimed in claim 59, is characterized in that, described for feeding back the Report Type of main transfer point CQI and PMI, specifically comprise:

For feeding back the Report Type of main transfer point broadband P MI; And/or,

For feeding back the Report Type of main transfer point subband CQI.

62. network equipments as claimed in claim 59, is characterized in that, described for feeding back the Report Type of non-main transfer point CQI and PMI, specifically comprise:

63. network equipments as claimed in claim 62, is characterized in that, described, for feeding back the Report Type of non-main transfer point CQI and PMI, also comprise:

64. network equipments as claimed in claim 59, is characterized in that, described for feeding back the CQI based on RI=1 hypothesis of main transfer point and the Report Type of PMI, specifically comprise:

65. network equipments as described in claim 59-64 any one, it is characterized in that, the report cycle of described channel condition information with report timing off-set amount to carry out semi-static control by high-level signaling, and described report cycle with report timing off-set amount to carry out separate configurations.