CN102291229B - Channel state information feedback method, receiving method and equipment - Google Patents
Channel state information feedback method, receiving method and equipment Download PDFInfo
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- CN102291229B CN102291229B CN201110234588.3A CN201110234588A CN102291229B CN 102291229 B CN102291229 B CN 102291229B CN 201110234588 A CN201110234588 A CN 201110234588A CN 102291229 B CN102291229 B CN 102291229B
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Abstract
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. The feedback method comprises the following steps that: user equipment determines channel state information based on a channel estimation value; and the user equipment feeds the channel state information back by utilizing a periodic reporting mode supporting CoMP transmission, wherein the periodic reporting mode comprises a reporting type used for feeding a channel quality indicator (CQI) of a main transmission point back and/or a reporting type used for feeding the CQI of a non-main transmission point back. In the embodiment, the user equipment (UE) feeds the channel state information back to network side equipment by the periodic reporting mode supporting the CoMP transmission. Therefore, various CoMP transmission schemes can be supported.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of feedback method, method of reseptance and equipment thereof of channel condition information.
Background technology
LTE-A(Long Term Evolution-Advanced, senior Long Term Evolution) system employing identical networking, in 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 realize cooperative beam figuration by combined dispatching.
Realizing in 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, method of reseptance and equipment thereof of channel condition information, to support various CoMP transmission plans.
In order to achieve the above object, the embodiment of the present invention provides a kind of feedback method of channel condition information, comprises the following steps:
Subscriber equipment is determined channel condition information based on channel estimation value;
Described subscriber equipment utilization supports the cycle Report mode of multipoint cooperative CoMP transmission to feed back described channel condition information; Wherein, described cycle Report mode comprises:
For feeding back the Report Type of main transfer point channel quality indicator (CQI); And/or,
For feeding back the Report Type of non-main transfer point CQI.
The embodiment of the present invention provides a kind of method of reseptance of channel condition information, 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: for feeding back the Report Type of main transfer point channel quality indicator (CQI); And/or, for feeding back the Report Type of non-main transfer point CQI;
Described network equipment is processed according to described channel condition information.
The embodiment of the present invention provides a kind of subscriber 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; Wherein, described cycle Report mode comprises: for feeding back the Report Type of main transfer point channel quality indicator (CQI); And/or, for feeding back the Report Type of non-main transfer point CQI.
The embodiment of the present invention provides a kind of network equipment, comprising:
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 channel quality indicator (CQI); And/or, for feeding back the Report Type of non-main transfer point CQI;
Processing module, for processing according to described channel condition information.
Compared with prior art, the embodiment of the present invention at least has the following advantages: UE(User Equipment, subscriber equipment) by supporting the cycle Report mode of CoMP transmission to network equipment feeding back channel state information, thus 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 feedback and the method for reseptance schematic flow sheet of a kind of channel condition information of providing of the embodiment of the present invention one;
Fig. 2 is a kind of user device architecture schematic diagram that the embodiment of the present invention two provides;
Fig. 3 is a kind of network equipment structural representation that the embodiment of the present invention three provides.
Embodiment
Inventor notices realizing in process of the present invention: in real system, a transmission mode may comprise multiple transmission plan, and supports the pattern between all kinds of transmission plans to switch; And 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.Concrete, system also can be passed through the different CSI-RS(Channel State Information Reference Signal of configuration, channel state information reference signals), make UE can measure the down channel of each transfer point.Wherein, this transfer point may not be the transfer point of a physics, but a virtual transfer point, and each virtual transmission is o'clock corresponding to a CSI-RS resource, is made up of the transfer point of one or more physics.
At TDD(Time Division Duplexing, time division duplex) in system, eNB(evolved NodeB, base station) can pass through SRS(Sounding Reference Signal, upstream detection pilot frequency) channel estimating, and obtain the spatial character of part or all of down channel by channel reciprocity.For example, if each antenna has been realized good up-downgoing reciprocity calbration in transfer point, can not feed back the PMI(Precoding Matrix Indicator of each transfer point, pre-coding matrix indication) index information; If each antenna has been realized good up-downgoing reciprocity calbration between transfer point, the also relative phase information between feedback transmission point not.Further, in FDD(Frequency Division Duplex, Frequency Division Duplexing (FDD)) in system, also there is certain reciprocal relation in long-term, the broad-band channel state information of up-downgoing channel, in some cases, also can not feed back the broadband/long-term PMI information of each transfer point.
Having realized after down channel measurement, carry out information feedback according to the needed channel condition information of transmission plan, all kinds of transmission plans need corresponding channel condition information support.For example, DPS needs the channel condition information of multiple 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) channel condition information of not limited channel condition information and the RI=1 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.Wherein, main transfer point is the transfer point to UE transmission data in DPS and CBF, if or JT while returning back to unicast to the transfer point of UE transmission data.
In the time of actual realization, the mode that can feed back by classification realizes general feedback, to measuring assembly, (measuring assembly is that network equipment is a transfer point set of UE configuration, UE need to observe the channel condition information of the transfer point in this measuring assembly, and realize feedback) in the channel condition information of each transfer point feedback single-point, and phase information and/or the amplitude information between feedback transmission point respectively.Afterwards, network equipment is based on the synthetic channel condition information that transfer point in measuring assembly is arrived to UE of this two parts information.
To comprise two transfer points in measuring assembly as example, two transfer points are designated as respectively H to the channel of UE
1and H
2, UE is that two transfer points are selected respectively pre-coding matrix w
1and w
2(pre-coding matrix is channel condition information), the phase place of two minizones and amplitude information g can choose as follows:
Wherein, g belongs to predefined codebook set; If w
1and w
2columns be designated as M, the diagonal matrix that g is M*M, when M=1, g deteriorates to a scalar; If g is scalar, its codebook set A can be 16QAM(Quadrature Amplitude Modulation, digital modulator) point in planisphere, also QPSK(Quadrature Phase Shift Keying, Quadrature Phase Shift Keying) point in planisphere.
In such scheme, UE puts on an equal footing all transfer points in the time of feedback.And in fact, the effect of these transfer points is not identical; For example, 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(is spatial reuse number of data layers) >1).
Based on the processing mode of different schemes, inventor finds: dynamic transmission point selection scheme in fact only needs the channel condition information of 1 transfer point, and in order to support other schemes, the information of other transfer points also needs feedback, but do not have any meaning for dynamic transmission point selection scheme.In addition, JP scheme supports high RANK transmission can't bring obvious performance boost, and can bring very high complexity to feedback, therefore supports the feedback of JP scheme only to need 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; But 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.Based on the embodiment 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.
Embodiment mono-
The embodiment of the present invention one 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, and as shown in Figure 1, the method comprises the following steps:
Wherein, cycle Report mode comprises: for feeding back main transfer point CQI(Channel Quality Indicator, channel quality indication) Report Type; And/or, for feeding back the Report Type of non-main transfer point CQI.
In the embodiment of the present invention, at the Report Type for feeding back main transfer point CQI, also can comprise the corresponding channel state information reference signals CSI-RS numbering of main transfer point.
At the Report Type for feeding back non-main transfer point CQI, also can comprise the relative phase information between non-main transfer point and main transfer point.
At the Report Type for feeding back main transfer point CQI, for feeding back the Report Type of main transfer point CQI and the Report Type of non-main transfer point CQI, for feeding back the Report Type of non-main transfer point CQI, CQI is the CQI that single codeword CQI(only comprises a code word).
At the Report Type for feeding back main transfer point CQI, comprise Report Type for feeding back main transfer point broadband CQI and/or for feeding back the Report Type of main transfer point subband CQI.
In the embodiment of the present invention, in order to support CoMP transmission, in designed cycle Report mode, can comprise existing PUCCH Report Type, also can comprise some new Report Types.Therefore:
Be the PUCCH Report Type 4(reporting type 4 of LTE/LTE-A system for the Report Type that feeds back main transfer point broadband CQI); Or, be Report Type 4a(reporting type 4a for the Report Type that feeds back main transfer point broadband CQI, be improved reporting type 4), this report type 4a is used for feeding back main transfer point broadband CQI and the corresponding CSI-RS numbering of main transfer point.Wherein, for Report Type 4a, the CSI-RS index information of its main transfer point comprising is B bit altogether.
Be the PUCCH Report Type 1(reporting type 1 of LTE/LTE-A system for the Report Type that feeds back main transfer point subband CQI); Or, be Report Type 1b(reporting type 1b for the Report Type that feeds back main transfer point subband CQI, be improved reporting type 1), this report Class1 b, for feeding back the main transfer point subband CQI(that does not comprise subband location index information for Report Type 1b, can not comprise subband location index information).
At the Report Type for feeding back non-main transfer point CQI, comprise Report Type for feeding back non-main transfer point broadband CQI and/or for feeding back the Report Type of non-main transfer point subband CQI.Wherein:
Be the PUCCH Report Type 4(reporting type 4 of LTE/LTE-A system for the Report Type that feeds back non-main transfer point broadband CQI); Or, be Report Type 4-e(reporting type 4-e for the Report Type that feeds back non-main transfer point broadband CQI), this report type 4-e is used for feeding back broadband relative phase information between non-main transfer point broadband CQI information and non-main transfer point and main transfer point.
It should be noted that, in the time not comprising with the relative phase information of main transfer point in Report Type 4-e, Report Type 4-e can deteriorate to existing Report Type 4, but be with original transmission mode difference: in original reporting mode, Report Type 4 feeds back the broadband CQI information of same transfer point, and in reporting mode in the embodiment of the present invention, the Report Type 4 not reporting in the same time feeds back the broadband CQI information of different transfer points.
Be the PUCCH Report Type 1(reporting type 1 of LTE/LTE-A system for the Report Type that feeds back non-main transfer point subband CQI); Or, be Report Type 1-e(reporting type 1-e for feeding back the Report Type of non-main transfer point subband CQI).
In said process, Report Type 1-e is used for feeding back subband relative phase information between non-main transfer point subband CQI information and non-main transfer point and main transfer point.
In said process, Report Type 1-e is for feeding back the subband relative phase information that does not comprise subband location index information between non-main transfer point subband CQI and/or non-main transfer point and main transfer point.
In said process, in Report Type 1-e, also can comprise subband location index information.
In the embodiment of the present invention, in the time not comprising subband location index information, between the non-main transfer point subband CQI that Report Type 1-e feeds back and/or non-main transfer point and main transfer point, subband relative phase information is with the last main transfer point subband CQI information of feeding back is corresponding identical with reference to frequency domain resource position before.
It should be noted that above-mentioned relative phase information can be the phase information in broadband, and the bit number of each broadband phase information is B3; Above-mentioned relative phase information can be the phase information of subband, and the subband position that the phase information of subband reports with CQI is identical; The bit number of the phase information of each subband is B4.
In the embodiment of the present invention, the CQI information bit in Report Type 4-e and/or Report Type 1-e is less than 4 bits.Wherein, it is that information bit that the CQI of each code word comprises can be less than the information bit that the CQI of the each code word of main transfer point comprises that the information bit that the CQI of each code word comprises is less than information bit that the CQI of each code word of main transfer point comprises, for example, the bit number of broadband single codeword CQI and subband single codeword CQI is respectively B1 or B2 bit.
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 the 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 in the time 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, the mode that can adopt polling mode take BP as unit to carry out or carry out take BP as unit subband selection of giving the correct time on subband is carried out, and indicates 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
The channel condition information of the UE side feedback based on above-mentioned, at network side, can also comprise the following steps:
Wherein, this cycle Report mode comprises: for feeding back the Report Type of main transfer point channel quality indicator (CQI); And/or, for feeding back the Report Type of non-main transfer point CQI.
In the embodiment of the present invention, at the Report Type for feeding back main transfer point CQI, also can comprise the corresponding channel state information reference signals CSI-RS numbering of main transfer point.
At the Report Type for feeding back non-main transfer point CQI, also can comprise the relative phase information between non-main transfer point and main transfer point.
At the Report Type for feeding back main transfer point CQI, for feeding back the Report Type of main transfer point CQI and the Report Type of non-main transfer point CQI, for feeding back the Report Type of non-main transfer point CQI, CQI is single codeword CQI.
At the Report Type for feeding back main transfer point CQI, comprise Report Type for feeding back main transfer point broadband CQI and/or for feeding back the Report Type of main transfer point subband CQI.
At the Report Type for feeding back non-main transfer point CQI, comprise Report Type for feeding back non-main transfer point broadband CQI and/or for feeding back the Report Type of non-main transfer point subband CQI.
Embodiment bis-
Based on the inventive concept same with said method, a kind of subscriber equipment is also provided in the embodiment of the present invention, as shown in Figure 2, this subscriber equipment comprises:
Determination module 11, for determining channel condition information based on channel estimation value;
Sending module 12, supports the cycle Report mode of multipoint cooperative CoMP transmission to feed back described channel condition information for utilizing; Wherein, described cycle Report mode comprises: for feeding back the Report Type of main transfer point channel quality indicator (CQI); And/or, for feeding back the Report Type of non-main transfer point CQI.
For feeding back the Report Type of main transfer point CQI, also can comprise the corresponding channel state information reference signals CSI-RS numbering of main transfer point described.
For feeding back the Report Type of non-main transfer point CQI, also can comprise the relative phase information between described non-main transfer point and main transfer point described.
Described, for feeding back the Report Type of main transfer point CQI, for feeding back the Report Type of main transfer point CQI and the Report Type of non-main transfer point CQI, for feeding back the Report Type of non-main transfer point CQI, CQI is single codeword CQI.
For feeding back the Report Type of main transfer point CQI, comprise Report Type for feeding back main transfer point broadband CQI and/or for feeding back the Report Type of main transfer point subband CQI described.
Described is LTE/LTE-A Physical Uplink Control Channel PUCCH Report Type 4 for feeding back the Report Type of main transfer point broadband CQI; Or described is Report Type 4a for feeding back the Report Type of main transfer point broadband CQI, described Report Type 4a is used for feeding back main transfer point broadband CQI and the corresponding CSI-RS numbering of main transfer point.
Described is LTE/LTE-A Physical Uplink Control Channel PUCCH Report Type 1 for feeding back the Report Type of main transfer point subband CQI; Or described is Report Type 1b for feeding back the Report Type of main transfer point subband CQI, described Report Type 1b is for feeding back the main transfer point subband CQI that does not comprise subband location index information.
For feeding back the Report Type of non-main transfer point CQI, comprise Report Type for feeding back non-main transfer point broadband CQI and/or for feeding back the Report Type of non-main transfer point subband CQI described.
Described is LTE/LTE-A Physical Uplink Control Channel PUCCH Report Type 4 for feeding back the Report Type of non-main transfer point broadband CQI; Or described is Report Type 4-e for feeding back the Report Type of non-main transfer point broadband CQI, described Report Type 4-e is used for feeding back broadband relative phase information between non-main transfer point broadband CQI information and described non-main transfer point and main transfer point.
Described is LTE/LTE-A Physical Uplink Control Channel PUCCH Report Type 1 for feeding back the Report Type of non-main transfer point subband CQI; Or described is Report Type 1-e for feeding back the Report Type of non-main transfer point subband CQI;
Wherein, described Report Type 1-e is used for feeding back subband relative phase information between non-main transfer point subband CQI information and described non-main transfer point and main transfer point; Or described Report Type 1-e is for feeding back the subband relative phase information that does not comprise subband location index information between non-main transfer point subband CQI and/or described non-main transfer point and main transfer point.
Between the non-main transfer point subband CQI that described Report Type 1-e feeds back and/or described non-main transfer point and main transfer point, subband relative phase information is with the last main transfer point subband CQI information of feeding back is corresponding identical with reference to frequency domain resource position before.
Described Report Type 1-e comprises subband location index information.
CQI information bit in Report Type 4-e and/or Report Type 1-e is less than 4 bits.
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.
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, reports for the Report Type of selecting high priority.
Wherein, the modules of apparatus of the present invention can be integrated in one, and also can separate deployment.Above-mentioned module can be merged into a module, also can further split into multiple submodules.
Embodiment tri-
Based on the inventive concept same with said method, a kind of network equipment is also provided in the embodiment of the present invention, as shown in Figure 3, this network equipment comprises:
Described for feeding back the Report Type of main transfer point CQI, also can comprise the corresponding channel state information reference signals CSI-RS numbering of main transfer point.
For feeding back the Report Type of non-main transfer point CQI, also can comprise the relative phase information between described non-main transfer point and main transfer point described.
Described, for feeding back the Report Type of main transfer point CQI, for feeding back the Report Type of main transfer point CQI and the Report Type of non-main transfer point CQI, for feeding back the Report Type of non-main transfer point CQI, CQI is single codeword CQI.
For feeding back the Report Type of main transfer point CQI, comprise Report Type for feeding back main transfer point broadband CQI and/or for feeding back the Report Type of main transfer point subband CQI described.
For feeding back the Report Type of non-main transfer point CQI, comprise Report Type for feeding back non-main transfer point broadband CQI and/or for feeding back the Report Type of non-main transfer point subband CQI described.
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 modules of apparatus of the present invention can be integrated in one, and also can separate deployment.Above-mentioned module can be merged into a module, also can further split into multiple submodules.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add essential general hardware platform by software and realize, and can certainly pass through hardware, but in a lot of situation, the former is better execution mode.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in a storage medium, comprise that some instructions (can be personal computers in order to make a computer equipment, server, or the network equipment etc.) carry out the method described in each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the module in accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device in embodiment can be distributed in the device of embodiment according to embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from the present embodiment.The module of above-described embodiment can be merged into a module, also can further split into multiple submodules.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
Disclosed is above only several specific embodiment of the present invention, and still, the present invention is not limited thereto, and the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (37)
1. a feedback method for channel condition information, is characterized in that, comprises the following steps:
Subscriber equipment is determined channel condition information based on channel estimation value;
Described subscriber equipment utilization supports the cycle Report mode of multipoint cooperative CoMP transmission to feed back described channel condition information; Wherein, described cycle Report mode comprises:
For feeding back the Report Type of main transfer point channel quality indicator (CQI) and for feeding back the Report Type of non-main transfer point CQI;
Wherein, comprise the Report Type for feeding back main transfer point broadband CQI and/or subband CQI for the Report Type that feeds back main transfer point CQI, being Report Type 4 or Report Type 4a for the Report Type that feeds back main transfer point broadband CQI, is Report Type 1 or Report Type 1b for feeding back the Report Type of main transfer point subband CQI;
Comprise the Report Type for feeding back non-main transfer point broadband CQI and/or subband CQI for the Report Type that feeds back non-main transfer point CQI, being Report Type 4 or Report Type 4-e for the Report Type that feeds back non-main transfer point broadband CQI, is Report Type 1 or Report Type 1-e for feeding back the Report Type of non-main transfer point subband CQI.
2. the method for claim 1, is characterized in that, for feeding back the Report Type of main transfer point CQI, also can comprise the corresponding channel state information reference signals CSI-RS numbering of main transfer point described.
3. the method for claim 1, is characterized in that, for feeding back the Report Type of non-main transfer point CQI, also can comprise the relative phase information between described non-main transfer point and main transfer point described.
4. the method for claim 1, it is characterized in that, described, for feeding back the Report Type of main transfer point CQI, for feeding back the Report Type of main transfer point CQI and the Report Type of non-main transfer point CQI, for feeding back the Report Type of non-main transfer point CQI, CQI is single codeword CQI.
5. the method for claim 1, is characterized in that, described is Report Type 4a for feeding back the Report Type of main transfer point broadband CQI, and described Report Type 4a is used for feeding back main transfer point broadband CQI and the corresponding CSI-RS numbering of main transfer point.
6. the method for claim 1, is characterized in that, described is Report Type 1b for feeding back the Report Type of main transfer point subband CQI, and described Report Type 1b is for feeding back the main transfer point subband CQI that does not comprise subband location index information.
7. the method for claim 1, it is characterized in that, described is Report Type 4-e for feeding back the Report Type of non-main transfer point broadband CQI, and described Report Type 4-e is used for feeding back broadband relative phase information between non-main transfer point broadband CQI information and described non-main transfer point and main transfer point.
8. the method for claim 1, is characterized in that, described Report Type 1-e is used for feeding back subband relative phase information between non-main transfer point subband CQI information and described non-main transfer point and main transfer point.
9. the method as described in claim 1 or 8, is characterized in that, described Report Type 1-e is for feeding back the subband relative phase information that does not comprise subband location index information between non-main transfer point subband CQI and/or described non-main transfer point and main transfer point.
10. method as claimed in claim 9, it is characterized in that, between the non-main transfer point subband CQI that described Report Type 1-e feeds back and/or described non-main transfer point and main transfer point, subband relative phase information is with the last main transfer point subband CQI information of feeding back is corresponding identical with reference to frequency domain resource position before.
11. the method for claim 1, is characterized in that, described Report Type 1-e comprises subband location index information.
12. methods as described in claim 1 or 7, is characterized in that, the CQI information bit in Report Type 4-e and/or Report Type 1-e is less than 4 bits.
13. methods as described in any one in claim 1-8,10,11, 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.
14. methods as claimed in claim 13, 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 subscriber equipment selects the Report Type of high priority to report.
The method of reseptance of 15. 1 kinds of channel condition informations, is characterized in that, 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: for feeding back the Report Type of main transfer point channel quality indicator (CQI) and for feeding back the Report Type of non-main transfer point CQI;
Described network equipment is processed according to described channel condition information;
Wherein, comprise the Report Type for feeding back main transfer point broadband CQI and/or subband CQI for the Report Type that feeds back main transfer point CQI, being Report Type 4 or Report Type 4a for the Report Type that feeds back main transfer point broadband CQI, is Report Type 1 or Report Type 1b for feeding back the Report Type of main transfer point subband CQI;
Comprise the Report Type for feeding back non-main transfer point broadband CQI and/or subband CQI for the Report Type that feeds back non-main transfer point CQI, being Report Type 4 or Report Type 4-e for the Report Type that feeds back non-main transfer point broadband CQI, is Report Type 1 or Report Type 1-e for feeding back the Report Type of non-main transfer point subband CQI.
16. methods as claimed in claim 15, is characterized in that, for feeding back the Report Type of main transfer point CQI, also can comprise the corresponding channel state information reference signals CSI-RS numbering of main transfer point described.
17. methods as claimed in claim 15, is characterized in that, for feeding back the Report Type of non-main transfer point CQI, also can comprise the relative phase information between described non-main transfer point and main transfer point described.
18. methods as claimed in claim 15, it is characterized in that, described, for feeding back the Report Type of main transfer point CQI, for feeding back the Report Type of main transfer point CQI and the Report Type of non-main transfer point CQI, for feeding back the Report Type of non-main transfer point CQI, CQI is single codeword CQI.
19. methods as described in claim 15-18 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.
20. 1 kinds of subscriber equipmenies, is characterized in that, 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; Wherein, described cycle Report mode comprises: for feeding back the Report Type of main transfer point channel quality indicator (CQI) and for feeding back the Report Type of non-main transfer point CQI;
Wherein, comprise the Report Type for feeding back main transfer point broadband CQI and/or subband CQI for the Report Type that feeds back main transfer point CQI, being Report Type 4 or Report Type 4a for the Report Type that feeds back main transfer point broadband CQI, is Report Type 1 or Report Type 1b for feeding back the Report Type of main transfer point subband CQI;
Comprise the Report Type for feeding back non-main transfer point broadband CQI and/or subband CQI for the Report Type that feeds back non-main transfer point CQI, being Report Type 4 or Report Type 4-e for the Report Type that feeds back non-main transfer point broadband CQI, is Report Type 1 or Report Type 1-e for feeding back the Report Type of non-main transfer point subband CQI.
21. subscriber equipmenies as claimed in claim 20, is characterized in that, for feeding back the Report Type of main transfer point CQI, also can comprise the corresponding channel state information reference signals CSI-RS numbering of main transfer point described.
22. subscriber equipmenies as claimed in claim 20, is characterized in that, for feeding back the Report Type of non-main transfer point CQI, also can comprise the relative phase information between described non-main transfer point and main transfer point described.
23. subscriber equipmenies as claimed in claim 20, it is characterized in that, described, for feeding back the Report Type of main transfer point CQI, for feeding back the Report Type of main transfer point CQI and the Report Type of non-main transfer point CQI, for feeding back the Report Type of non-main transfer point CQI, CQI is single codeword CQI.
24. subscriber equipmenies as claimed in claim 20, is characterized in that, described is LTE/LTE-A Physical Uplink Control Channel PUCCH Report Type 4 for feeding back the Report Type of main transfer point broadband CQI; Or described is Report Type 4a for feeding back the Report Type of main transfer point broadband CQI, described Report Type 4a is used for feeding back main transfer point broadband CQI and the corresponding CSI-RS numbering of main transfer point.
25. subscriber equipmenies as claimed in claim 20, is characterized in that, described is LTE/LTE-A Physical Uplink Control Channel PUCCH Report Type 1 for feeding back the Report Type of main transfer point subband CQI; Or described is Report Type 1b for feeding back the Report Type of main transfer point subband CQI, described Report Type 1b is for feeding back the main transfer point subband CQI that does not comprise subband location index information.
26. subscriber equipmenies as claimed in claim 20, is characterized in that, described is LTE/LTE-A Physical Uplink Control Channel PUCCH Report Type 4 for feeding back the Report Type of non-main transfer point broadband CQI; Or described is Report Type 4-e for feeding back the Report Type of non-main transfer point broadband CQI, described Report Type 4-e is used for feeding back broadband relative phase information between non-main transfer point broadband CQI information and described non-main transfer point and main transfer point.
27. subscriber equipmenies as claimed in claim 20, is characterized in that,
Described Report Type 1-e is used for feeding back subband relative phase information between non-main transfer point subband CQI information and described non-main transfer point and main transfer point; Or described Report Type 1-e is for feeding back the subband relative phase information that does not comprise subband location index information between non-main transfer point subband CQI and/or described non-main transfer point and main transfer point.
28. subscriber equipmenies as claimed in claim 27, it is characterized in that, between the non-main transfer point subband CQI that described Report Type 1-e feeds back and/or described non-main transfer point and main transfer point, subband relative phase information is with the last main transfer point subband CQI information of feeding back is corresponding identical with reference to frequency domain resource position before.
29. subscriber equipmenies as claimed in claim 27, is characterized in that, described Report Type 1-e comprises subband location index information.
30. subscriber equipmenies as described in claim 27 or 28, is characterized in that, the CQI information bit in Report Type 4-e and/or Report Type 1-e is less than 4 bits.
31. subscriber equipmenies as described in any one in claim 20-29, 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.
32. subscriber equipmenies as claimed in claim 31, 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, reports for the Report Type of selecting high priority.
33. 1 kinds of network equipments, is characterized in that, comprising:
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 channel quality indicator (CQI) and for feeding back the Report Type of non-main transfer point CQI;
Processing module, for processing according to described channel condition information;
Wherein, comprise the Report Type for feeding back main transfer point broadband CQI and/or subband CQI for the Report Type that feeds back main transfer point CQI, being Report Type 4 or Report Type 4a for the Report Type that feeds back main transfer point broadband CQI, is Report Type 1 or Report Type 1b for feeding back the Report Type of main transfer point subband CQI;
Comprise the Report Type for feeding back non-main transfer point broadband CQI and/or subband CQI for the Report Type that feeds back non-main transfer point CQI, being Report Type 4 or Report Type 4-e for the Report Type that feeds back non-main transfer point broadband CQI, is Report Type 1 or Report Type 1-e for feeding back the Report Type of non-main transfer point subband CQI.
34. network equipments as claimed in claim 33, is characterized in that, described for feeding back the Report Type of main transfer point CQI, also can comprise the corresponding channel state information reference signals CSI-RS numbering of main transfer point.
35. network equipments as claimed in claim 33, is characterized in that, for feeding back the Report Type of non-main transfer point CQI, also can comprise the relative phase information between described non-main transfer point and main transfer point described.
36. network equipments as claimed in claim 33, it is characterized in that, described, for feeding back the Report Type of main transfer point CQI, for feeding back the Report Type of main transfer point CQI and the Report Type of non-main transfer point CQI, for feeding back the Report Type of non-main transfer point CQI, CQI is single codeword CQI.
37. network equipments as described in claim 33-36 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.
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| ES2743726T3 (en) | 2012-03-19 | 2020-02-20 | Ericsson Telefon Ab L M | Coordinated multipoint transmission hypothesis configuration for the channel status information report |
| CN103368699B (en) * | 2012-04-01 | 2017-12-19 | 中兴通讯股份有限公司 | Channel condition information CSI feedback method and device |
| CN103391127A (en) * | 2012-05-11 | 2013-11-13 | 上海贝尔股份有限公司 | Multipoint collaborative information feedback method and device |
| CN103428759A (en) * | 2012-05-15 | 2013-12-04 | 中兴通讯股份有限公司 | Measuring result identification method, user equipment and network side |
| JP5743965B2 (en) * | 2012-06-26 | 2015-07-01 | 株式会社Ｎｔｔドコモ | User terminal, radio communication system, radio communication method, and radio base station |
| CN103546249B (en) * | 2012-07-09 | 2016-09-14 | 电信科学技术研究院 | A kind of cycle CSI report method and terminal |
| CN104782210B (en) | 2012-11-16 | 2019-04-19 | 华为技术有限公司 | Cut-in method and equipment |
| US10945147B2 (en) * | 2016-09-28 | 2021-03-09 | Telefonaktiebolaget Lm Ericsson (Publ) | Dynamic CSI reporting type |
| CN109660321A (en) * | 2017-10-10 | 2019-04-19 | 华为技术有限公司 | A kind of channel measuring method and device |
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