CN104253639B - Obtain the method and device of channel quality instruction - Google Patents
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Abstract
The embodiment of the present invention provides a kind of method and device for obtaining channel quality instruction.This method includes：First SINR is obtained according to UE dedicated pilots, and the 2nd SINR is obtained according to CSI RS；Weight coefficient α is determined according to scheduling type, and the first SINR and the 2nd SINR are weighted using the weight coefficient, obtains the SINR after weighting；SINR after the weighting is quantified, and using the result after quantization as CQI.In the embodiment of the present invention, first SINR is obtained according to UE dedicated pilots, and the 2nd SINR is obtained according to CSI RS, and weight coefficient is determined according to scheduling type, processing is weighted to above-mentioned first SINR and the 2nd SINR using weight coefficient to obtain the SINR after weighting, finally quantify to obtain CQI, i.e., get accurate CQI by way of weighting and handling, and then system throughput and the availability of frequency spectrum can also be improved.
Description
Technical field
The present embodiments relate to communication technical field, more particularly to a kind of method and dress for obtaining channel quality instruction
Put.
Background technology
Multiple-input and multiple-output（Multiple Input Multiple Output, abbreviation MIMO）System has become future
Key technology in wireless communication system.Under identical networking, multiple cell mimo system can produce co-channel interference（Co-Channel
Interference, abbreviation CCI）, CCI can seriously undermine the high spectrum utilization that MIMO technology is brought.Cooperative multipoint transmission
（Coordinated Multi-point, abbreviation CoMP）Technology is significantly reduced small by the joint precoding of multiple base stations
The influence to marginal user performance is disturbed in section, multiple cell cellular mimo systems is changed into noise limited from interference limiting system
System.CoMP has been widely regarded as effectively reducing inter-cell interference, one kind of the performance of raising edge customer at present
New technology.
In a cellular communication system, user equipment（User Equipment, abbreviation UE）The signal quality of reception depends on
The channel quality of serving cell, the interference strength of other cells and noise intensity.For specific transimission power, it is to optimize
System capacity and coverage, as received signal quality changes, emitter（Refer to the emitter of base station）It should match as possible each
The information data rate of user, commonly known as link circuit self-adapting.UE is obtained by the test to downlink received signal quality
Channel quality indicates（Channel Quality Indicator, abbreviation CQI）And feed back to transmitting terminal and carry out adaptive scheduling.
Descending CQI can be according to cell reference signals（Cell-Specific Reference Singals, abbreviation CRS）The quality of reception
Calculate.And in Long Term Evolution（Long Term Evolution, abbreviation LTE）Evolution（LTE-Advanced, abbreviation LTE-A）
In introduce channel condition information（Channel State Information, abbreviation CSI）Reference signal（CSI reference
Signal, abbreviation CSI-RS）, UE can obtain the channel conditions of each cooperative base station under CoMP by CSI-RS, and according to CSI-
The CQI feedback that RS is calculated under CoMP is to base station to support the adaptive scheduling under CoMP.
In the prior art, it is mainly to be calculated according to the CRS qualities of reception or the CSI-RS qualities of reception to calculate descending CQI,
The CQI so calculated is inaccurate, and then can be unfavorable for the raising of cell throughout under CoMP.
The content of the invention
The embodiment of the present invention provides a kind of method and device for obtaining channel quality instruction, to solve to calculate in the prior art
The problem of CQI inaccuracy.
First aspect of the embodiment of the present invention provides a kind of method for obtaining channel quality instruction, including：
First Signal Interference and Noise Ratio SINR is obtained according to user equipment (UE) dedicated pilot, and joined according to channel condition information
Examine signal CSI-RS and obtain the 2nd SINR；
Weight coefficient α is determined according to scheduling type, and using the weight coefficient to the first SINR and described second
SINR is weighted, and obtains the SINR after weighting；
SINR after the weighting is quantified, and using the result after quantization as channel quality indicator (CQI).
It is described to obtain the according to CSI-RS with reference in a first aspect, in the first possible embodiment of first aspect
Two SINR, including：
Initial 2nd SINR is calculated according to CSI-RS；
Channel estimation value is obtained according to CSI-RS, and beam shaping vector matrix is obtained according to the channel estimation value；
Beam shaping gain compensation is carried out to initial 2nd SINR using the beam shaping vector matrix, obtains institute
State the 2nd SINR.
With reference to the first possible embodiment of first aspect, in second of possible embodiment of first aspect
In, the scheduling type is semi-persistent scheduling；Correspondingly,
It is described that weight coefficient α is determined according to scheduling type, and using the weight coefficient to the first SINR and described
2nd SINR is weighted, and obtains the SINR after weighting, including：
It is preset value to determine the weight coefficient α；
SINR, wherein Csi_Rs_Sinr after weighting is calculated using formula (1- α) * Csi_Rs_Sinr+ α * Dmrs_Sinr
Represent that the 2nd SINR, Dmrs_Sinr represent the first SINR.
With reference to the first possible embodiment of first aspect, in the third possible embodiment of first aspect
In, the scheduling type is dynamic dispatching；Correspondingly,
It is described that weight coefficient α is determined according to scheduling type, and using the weight coefficient to the first SINR and second
SINR is weighted, and obtains the SINR after weighting, including：
Determine the ratio that the weight coefficient α is the first SINR and the 2nd SINR；
SINR after weighting is calculated using formula α * Csi_Rs_Sinr, wherein Csi_Rs_Sinr represents described second
SINR。
Second aspect of the embodiment of the present invention provides a kind of device for obtaining channel quality instruction, including：
Acquisition module, for according to user equipment (UE) dedicated pilot obtain the first Signal Interference and Noise Ratio SINR, and according to
Channel state information reference signals CSI-RS obtains the 2nd SINR；
Weighting block, for determining weight coefficient α according to scheduling type, and using the weight coefficient to described first
SINR and the 2nd SINR are weighted, and obtain the SINR after weighting；
Quantization modules, for the SINR after the weighting to be quantified, and using the result after quantization as channel quality
Indicate CQI.
With reference to second aspect, in the first possible embodiment of second aspect, the acquisition module, it is specifically used for
Initial 2nd SINR is calculated according to CSI-RS；Channel estimation value is obtained according to CSI-RS, and obtained according to the channel estimation value
Beam shaping vector matrix；Beam shaping gain benefit is carried out to initial 2nd SINR using the beam shaping vector matrix
Repay, obtain the 2nd SINR.
With reference to the first possible embodiment of second aspect, in second of possible embodiment of second aspect
In, the weighting block, specifically for when the scheduling type is semi-persistent scheduling, determining that the weight coefficient α is default
Value；SINR after weighting is calculated using formula (1- α) * Csi_Rs_Sinr+ α * Dmrs_Sinr, wherein Csi_Rs_Sinr is represented
2nd SINR, Dmrs_Sinr represent the first SINR.
With reference to the first possible embodiment of second aspect, in the third possible embodiment of second aspect
In, the weighting block, specifically for when the scheduling type is dynamic dispatching, determining the weight coefficient α for described the
One SINR and the 2nd SINR ratio；SINR, wherein Csi_Rs_ after weighting is calculated using formula α * Csi_Rs_Sinr
Sinr represents the 2nd SINR.
In the embodiment of the present invention, the first SINR is obtained according to UE dedicated pilots, and the 2nd SINR is obtained according to CSI-RS,
And weight coefficient is determined according to scheduling type, using weight coefficient to above-mentioned first SINR and the 2nd SINR be weighted processing come
The SINR after weighting is obtained, finally quantifies to obtain CQI, i.e., gets accurate CQI, Jin Erye by way of weighting and handling
System throughput and the availability of frequency spectrum can be improved.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are this hairs
Some bright embodiments, for those of ordinary skill in the art, without having to pay creative labor, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the schematic flow sheet of the embodiment of the method one of acquisition channel quality instruction provided by the invention；
Fig. 2 is the schematic flow sheet of the embodiment of the method two of acquisition channel quality instruction provided by the invention；
Fig. 3 is the structural representation of the device embodiment one of acquisition channel quality instruction provided by the invention.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
* represents multiplication sign in the embodiment of the present invention.
Fig. 1 is the schematic flow sheet of the embodiment of the method one of acquisition channel quality instruction provided by the invention, such as Fig. 1 institutes
Show, this method includes：
S101, according to UE dedicated pilots（UE-Specific Reference Singals, it is mainly used in data demodulation
（demodulation）, DMRS is designated as in literary）The first SINR is obtained, is designated as Dmrs_Sinr；And obtain second according to CSI-RS
SINR.2nd SINR is to carry out the SINR after beam shaping gain compensation.The specific process for calculating acquisition SINR can use
Existing method.
Transmitting terminal（It can be base station）Can be with the case of the descending channel information undergone on different transmitting antennas are obtained
Beam shaping is provided, i.e., at intended recipient end（Can be UE）Side be upwardly formed a main aerial wave beam, mimo channel is divided
Into many subchannels not interfered with parallel, optimal Single User MIMO is realized to reach（Single User MIMO, abbreviation SU-
MIMO）And multiuser MIMO（Multiple User MIMO, abbreviation MU-MIMO）The purpose of multiplexing.Because transmitting terminal is in wave beam
UE dedicated pilots, letter of the receiving terminal based on UE dedicated pilots are introduced during excipient by the way of non-codebook precoding, in agreement
Road estimation can reflect the channel that data transfer layer is undergone, including precoding, thus the transmission of UE dedicated pilots allows to receive
End need not clearly know that the precoding can demodulation that transmitting terminal uses recovers transport layer data.
S102, weight coefficient α is determined according to scheduling type, and using weight coefficient α to above-mentioned first SINR and second
SINR is weighted, and is obtained the SINR after weighting, is designated as Sinr '.
In specific implementation process, scheduling type may be semi-persistent scheduling, and user distributes in the case of semi-persistent scheduling
To frequency domain resource keeping identical for a period of time.The scheduling type may also be dynamic dispatching.
S103, the SINR after above-mentioned weighting quantified, and using the result after quantization as CQI.Quantization refer specifically to by
The continuous value of signal（Or a large amount of possible discrete values）It is approximately limited multiple（It is or less）The process of centrifugal pump.This
It is that the SINR in the range of some is classified as a fixed value in inventive embodiments.
In the prior art, UE calculates CQI according to CRS the or CSI-RS qualities of reception, and specifically UE is where reference signal
Time-frequency location calculates the receiving power of reference signal and corresponding noise, and finally to obtain descending CQI, i.e. UE simply feeds back straight
The information observed is connect, and without the processing of corresponding transmitting terminal or receiving terminal, the CQI being achieved in that will be inaccurate.
In the present embodiment, the first SINR is obtained according to DMRS, and the 2nd SINR is obtained according to CSI-RS, and according to scheduling
Type determines weight coefficient, is weighted processing to above-mentioned first SINR and the 2nd SINR using weight coefficient come after obtaining weighting
SINR, finally quantify to obtain CQI, i.e., get accurate CQI by way of weighting and handling, and then improve system throughput
Rate and the availability of frequency spectrum.
The schematic flow sheet for the embodiment of the method two that Fig. 2 indicates for acquisition channel quality provided by the invention, above-mentioned second
SINR is to carry out the SINR after beam shaping gain compensation, and specifically, the above-mentioned process that the 2nd SINR is obtained according to CSI-RS can
Think：
S201, initial 2nd SINR calculated according to CSI-RS, be designated as Csi_Rs_Sinr '.
S202, channel estimation value is obtained according to CSI-RS, and beam shaping vector matrix is obtained according to the channel estimation value.
Specifically, UE obtains channel estimation value by the estimation to CSI-RS, it is assumed that the channel estimation value is H, is calculated
HH* H value, wherein HHRefer to the hermitian to H（Hermitian）Computing, and to HH* H result of calculation carries out singular value decomposition
（Singular value decomposition, abbreviation SVD）, formula H can be usedH*H=U*Σ*VHIn progress SVD, wherein U
Row vector be HH* H left singular vector, the column vector in V is HH* H right singular vector, Σ HH* H singular value.In base
When the independent data flow amount stood while sent is one, the singular value of maximum is chosen in Σ, is chosen in V strange with the maximum
Column vector corresponding to different value forms beam shaping vector matrix v；It is two streams at the independent data flow amount that base station is sent simultaneously
When, the maximum and secondary big singular value of selection in Σ, column vector structure corresponding with the maximum and secondary big singular value is chosen in V
Into beam shaping vector matrix v.
S203, beam shaping gain compensation carried out to above-mentioned initial 2nd SINR using above-mentioned beam shaping vector matrix v,
Above-mentioned 2nd SINR is obtained, is designated as Csi_Rs_Sinr.
Specifically, Csi_Rs_Sinr=Csi_Rs_Sinr ' * vH* v, wherein vHFor v Hermitian computings.
In the prior art, cooperative base station has carried out the wave beam tax of non-codebook precoding to the business datum of each user under CoMP
Type operates, and CSI-RS maps directly to corresponding antenna port and launched, and did not do corresponding wave beam in transmitting terminal and assigns
Type precoding, therefore the CQI that receiving terminal is calculated by CSI-RS does not include the gain effect that beam shaping is brought, if
The CQI directly obtained from CSI-RS measurements, can cause CQI inaccuracy, and then be unfavorable for carrying for cell throughout under CoMP
It is high.
Relative to prior art, the SINR calculated according to CSI-RS is subjected to beam shaping gain compensation in the present embodiment,
It can make it that the follow-up CQI for calculating acquisition is more accurate.
Further, it is different for differently scheduling type, used weight coefficient.In the case of the first, use
Scheduling type is semi-persistent scheduling, and in this case, weight coefficient α can be fixed value.Specifically, it is above-mentioned according to scheduling type
Weight coefficient α is determined, and the first SINR and the 2nd SINR are weighted using the weight coefficient, obtains weighting
SINR afterwards, Ke Yiwei：It is preset value to determine weight coefficient α, and then using formula (1- α) * Csi_Rs_Sinr+ α * Dmrs_
Sinr calculates the SINR after weighting, and wherein Csi_Rs_Sinr represents that the 2nd SINR, Dmrs_Sinr represent described first
SINR.Then final CQI is further obtained.Here α preset value can be set according to simulation result.
In the case of second, the scheduling type used is in this case, above-mentioned to be determined according to scheduling type for dynamic dispatching
Weight coefficient α, and the first SINR and the 2nd SINR are weighted using the weight coefficient, after obtaining weighting
SINR, Ke Yiwei：Determine the ratio that weight coefficient α is the first SINR and the 2nd SINR, i.e. α=Dmrs_Sinr/Csi_Rs_
Sinr；Then the SINR after weighting being calculated using formula α * Csi_Rs_Sinr, wherein Csi_Rs_Sinr represents the 2nd SINR,
Dmrs_Sinr represents the first SINR.Then final CQI is further obtained.
Fig. 3 is the structural representation of the device embodiment one of acquisition channel quality instruction provided by the invention, and the device can
To be integrated in UE, as shown in figure 3, the device includes：Acquisition module 301, weighting block 302 and quantization modules 303, wherein：
Acquisition module 301 obtains the first Signal Interference and Noise Ratio SINR according to user equipment (UE) dedicated pilot, and according to letter
Channel state information reference signal CSI-RS obtains the 2nd SINR.Weighting block 302 determines weight coefficient α according to scheduling type, and
The first SINR and the 2nd SINR are weighted using the weight coefficient, obtain the SINR after weighting.Quantify mould
Block 303 is quantified the SINR after the weighting, and using the result after quantization as channel quality indicator (CQI).
Above-mentioned each module is used to perform preceding method embodiment, and its implementing principle and technical effect is similar, no longer superfluous herein
State.
Further, on the basis of above-described embodiment, above-mentioned acquisition module 301, specifically for being calculated according to CSI-RS
Initial 2nd SINR；Channel estimation value is obtained according to CSI-RS, and beam shaping vector moment is obtained according to the channel estimation value
Battle array；Beam shaping gain compensation is carried out to initial 2nd SINR using the beam shaping vector matrix, obtains described the
Two SINR.
In the case of one kind, above-mentioned weighting block 302, specifically for when the scheduling type is semi-persistent scheduling, it is determined that
The weight coefficient α is preset value；SINR after weighting is calculated using formula (1- α) * Csi_Rs_Sinr+ α * Dmrs_Sinr,
Wherein Csi_Rs_Sinr represents that the 2nd SINR, Dmrs_Sinr represent the first SINR.
In another case, above-mentioned weighting block 302, specifically for when the scheduling type is dynamic dispatching, it is determined that
The weight coefficient α is the first SINR and the 2nd SINR ratio；Calculated and weighted using formula α * Csi_Rs_Sinr
SINR afterwards, wherein Csi_Rs_Sinr represent the 2nd SINR.
Above-mentioned each module is used to perform preceding method embodiment, and its implementing principle and technical effect is similar, no longer superfluous herein
State.
Another embodiment of the present invention also provides a kind of device for obtaining channel quality instruction, including processor, specifically, should
Processor is used to obtain the first Signal Interference and Noise Ratio SINR according to user equipment (UE) dedicated pilot, and according to channel condition information
Reference signal CSI-RS obtains the 2nd SINR；Weight coefficient α is determined according to scheduling type, and using the weight coefficient to described
First SINR and the 2nd SINR are weighted, and obtain the SINR after weighting；SINR after the weighting is quantified, and
Using the result after quantization as channel quality indicator (CQI).
Further, the processor is specifically used for calculating initial 2nd SINR according to CSI-RS；Obtained and believed according to CSI-RS
Road estimate, and beam shaping vector matrix is obtained according to the channel estimation value；Using the beam shaping vector matrix pair
Initial 2nd SINR carries out beam shaping gain compensation, obtains the 2nd SINR.
On the basis of above-described embodiment, in the case of a kind of, the processor, specifically for being half quiet in the scheduling type
When state is dispatched, it is preset value to determine the weight coefficient α；Calculated using formula (1- α) * Csi_Rs_Sinr+ α * Dmrs_Sinr
SINR after weighting, wherein Csi_Rs_Sinr represent that the 2nd SINR, Dmrs_Sinr represent the first SINR.
In another case, processor, specifically for when the scheduling type is dynamic dispatching, determining the weighting
Factor alpha is the first SINR and the 2nd SINR ratio；After weighting being calculated using formula α * Csi_Rs_Sinr
SINR, wherein Csi_Rs_Sinr represent the 2nd SINR.
The device is used to perform preceding method embodiment, and its implementing principle and technical effect is similar, will not be repeated here.
In several embodiments provided by the present invention, it should be understood that disclosed apparatus and method, it can be passed through
Its mode is realized.For example, device embodiment described above is only schematical, for example, the division of the unit, only
Only a kind of division of logic function, there can be other dividing mode when actually realizing, such as multiple units or component can be tied
Another system is closed or is desirably integrated into, or some features can be ignored, or do not perform.It is another, it is shown or discussed
Mutual coupling or direct-coupling or communication connection can be the INDIRECT COUPLINGs or logical by some interfaces, device or unit
Letter connection, can be electrical, mechanical or other forms.
The unit illustrated as separating component can be or may not be physically separate, show as unit
The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected to realize the mesh of this embodiment scheme according to the actual needs
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can also
That unit is individually physically present, can also two or more units it is integrated in a unit.Above-mentioned integrated list
Member can both be realized in the form of hardware, can also be realized in the form of hardware adds SFU software functional unit.
The above-mentioned integrated unit realized in the form of SFU software functional unit, can be stored in one and computer-readable deposit
In storage media.Above-mentioned SFU software functional unit is stored in a storage medium, including some instructions are causing a computer
Equipment（Can be personal computer, server, or network equipment etc.）Or processor（processor）It is each to perform the present invention
The part steps of embodiment methods described.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage（Read-
Only Memory, ROM）, random access memory（Random Access Memory, RAM）, magnetic disc or CD etc. it is various
Can be with the medium of store program codes.
Those skilled in the art can be understood that, for convenience and simplicity of description, only with above-mentioned each functional module
Division progress for example, in practical application, can be complete by different functional modules by above-mentioned function distribution as needed
Into the internal structure of device being divided into different functional modules, to complete all or part of function described above.On
The specific work process of the device of description is stated, the corresponding process in preceding method embodiment is may be referred to, will not be repeated here.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (8)
- A kind of 1. method for obtaining channel quality instruction, it is characterised in that including：First Signal Interference and Noise Ratio SINR is obtained according to user equipment (UE) dedicated pilot, and according to channel condition information with reference to letter Number CSI-RS obtains the 2nd SINR；Weight coefficient α is determined according to scheduling type, and using the weight coefficient to the first SINR and the 2nd SINR It is weighted, obtains the SINR after weighting；SINR after the weighting is quantified, and using the result after quantization as channel quality indicator (CQI)；The scheduling type is semi-persistent scheduling or dynamic dispatching.
- 2. according to the method for claim 1, it is characterised in that it is described that 2nd SINR is obtained according to CSI-RS, including：Initial 2nd SINR is calculated according to CSI-RS；Channel estimation value is obtained according to CSI-RS, and beam shaping vector matrix is obtained according to the channel estimation value；Beam shaping gain compensation is carried out to initial 2nd SINR using the beam shaping vector matrix, obtains described the Two SINR.
- 3. according to the method for claim 2, it is characterised in that the scheduling type is semi-persistent scheduling；Correspondingly,It is described that weight coefficient α is determined according to scheduling type, and using the weight coefficient to the first SINR and described second SINR is weighted, and obtains the SINR after weighting, including：It is preset value to determine the weight coefficient α；SINR after weighting is calculated using formula (1- α) * Csi_Rs_Sinr+ α * Dmrs_Sinr, wherein Csi_Rs_Sinr is represented 2nd SINR, Dmrs_Sinr represent the first SINR.
- 4. according to the method for claim 2, it is characterised in that the scheduling type is dynamic dispatching；Correspondingly,It is described that weight coefficient α is determined according to scheduling type, and using the weight coefficient to the first SINR and the 2nd SINR It is weighted, obtains the SINR after weighting, including：Determine the ratio that the weight coefficient α is the first SINR and the 2nd SINR；SINR after weighting is calculated using formula α * Csi_Rs_Sinr, wherein Csi_Rs_Sinr represents the 2nd SINR.
- A kind of 5. device for obtaining channel quality instruction, it is characterised in that including：Acquisition module, for obtaining the first Signal Interference and Noise Ratio SINR according to user equipment (UE) dedicated pilot, and according to channel State information reference signals CSI-RS obtains the 2nd SINR；Weighting block, for determining weight coefficient α according to scheduling type, and using the weight coefficient to the first SINR and 2nd SINR is weighted, and obtains the SINR after weighting；The scheduling type is semi-persistent scheduling or dynamic dispatching；Quantization modules, indicated for the SINR after the weighting to be quantified, and using the result after quantization as channel quality CQI。
- 6. device according to claim 5, it is characterised in that the acquisition module, specifically for being calculated according to CSI-RS Initial 2nd SINR；Channel estimation value is obtained according to CSI-RS, and beam shaping vector moment is obtained according to the channel estimation value Battle array；Beam shaping gain compensation is carried out to initial 2nd SINR using the beam shaping vector matrix, obtains described the Two SINR.
- 7. device according to claim 6, it is characterised in that the weighting block, specifically in the scheduling type For semi-persistent scheduling when, it is preset value to determine the weight coefficient α；Using formula (1- α) * Csi_Rs_Sinr+ α * Dmrs_ Sinr calculates the SINR after weighting, and wherein Csi_Rs_Sinr represents that the 2nd SINR, Dmrs_Sinr represent described first SINR。
- 8. device according to claim 6, it is characterised in that the weighting block, specifically in the scheduling type For dynamic dispatching when, determine the weight coefficient α be the first SINR and the 2nd SINR ratio；Using formula α * Csi_Rs_Sinr calculates the SINR after weighting, and wherein Csi_Rs_Sinr represents the 2nd SINR.
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| CN108631847B (en) | 2017-03-24 | 2021-06-01 | 华为技术有限公司 | Method for transmitting channel state information, terminal equipment and network equipment |
| CN110753353B (en) * | 2019-09-17 | 2022-06-07 | 中国联合网络通信集团有限公司 | Equipment model selection method and device |
| US10868656B1 (en) * | 2019-10-24 | 2020-12-15 | Qualcomm Incorporated | Channel state information computation delay determination for layer 1 signal to interference plus noise ratio reporting |
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| US20120263068A1 (en) * | 2010-01-07 | 2012-10-18 | Ntt Docomo, Inc. | Mobile terminal apparatus, radio base station apparatus and radio communication method |
| CN102377698A (en) * | 2010-08-11 | 2012-03-14 | 华为技术有限公司 | Signal to interference and noise ratio measuring method and apparatus thereof |
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