CN103312400B - The feedback method of a kind of aperiodic channel status information, device and mobile terminal - Google Patents
The feedback method of a kind of aperiodic channel status information, device and mobile terminal Download PDFInfo
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Abstract
The embodiment of the present invention provide aperiodic CSI feedback method, device and mobile terminal, when UE receives the CQI request that instruction needs feedback CSI, in addition to feedback tradition PMI and tradition CQI, carrier resource configuration mode always according to described UE, and available feedback resources, determine the extra CSI needing feedback, use available feedback resources to feed back this extra CSI, wherein, feedback resources idle in the feedback resources increased on the basis of available feedback resources is Conventional wide band feedback model 12 or Conventional wide band feedback model 12.The embodiment of the present invention provide aperiodic CSI feedback method, device and system, on the basis of existing technology, in the case of not increasing feedback resources or limited increase feedback resources, it is achieved that the feedback of the CSI of enhancing, effectively support MU MIMO and the realization of CS/CB scheme.
Description
Technical field
The present invention relates to mobile communication technology field, particularly relate to a kind of aperiodic channel status information (CSI)
Feedback method, device and mobile terminal.
Background technology
Enhancing that descending multiple antennas (Mutiple Input Mutiple Output, MIMO) transmits and corresponding
The enhancing that channel condition information (Channel State Information, CSI) feeds back is current 3GPP LTE
One important criteria point of Rel.11 specification, in prior art specification, defines 3 instruction information and uses
In the report of descending CSI, i.e. channel quality indicates (Channel Quality Indicator, CQI), prelists
Code matrix instruction (Precoding Matrix Indicator, PMI) and channel sequence indicate (Rank Index,
RI).In 8 antenna systems, PMI is made up of PMI1 and PMI2 two-stage feedback.Meanwhile, existing specification
Indicating information definition cycle and class feedback model aperiodic two for these three, wherein aperiodic, pattern included width
Band feedback model 1-2, mode and the content of its feedback are as shown in table 1 below:
Table 1
Broadband feedback pattern 1-2 aperiodic shown in above-mentioned table 1 designs for single community single user.And
Multi-user multi-antenna (the Multipl-user Mutiple Input Mutiple risen at present
Output, MU-MIMO) transmit and coordinated multipoint transmission, especially cooperative scheduling and wave beam forming
(Coordinated scheduling/beamforming, CS/CB) is follow-up Long Term Evolution (Long Term
Evolution Advanced, LTE-A) two emphasis multiple antennas enhancement techniques of Rel.11 version, with above-mentioned table
The broadband feedback pattern MU-MIMO relatively difficult to achieve and coordinate multipoint (Cooperative Multiple of 1 definition
Points, CoMP) transmission, or it is difficult to ensure that its performance.The most objectively need to strengthen above-mentioned broadband feedback
Pattern 1-2.
For supporting MU-MIMO transmission and CS/CB transmission, the enhancing to above-mentioned broadband feedback pattern 1-2
Thinking has:
1, under MU-MIMO transmission, additional feedback one interference CQI (i.e. assumes that there is multi-user does
CQI in the case of disturbing) and/or feed back extra PMI, this extra PMI instruction with scheduling UE can or
The code word prohibitted the use of；
2, under CS/CB transmission, additional feedback one goes to disturb CQI (i.e. to assume that adjacent cooperation cell is with to dry
Disturb the CQI made in the case of collaborative process) and/or feed back extra PMI, this extra PMI indicates cooperation cell
The code word that can or prohibit the use of；
In other words, the feedback content that hinge structure specification (for the single user design of single community) defines,
The CSI feedback strengthened needs to increase new feedback content, i.e. needs to feed back above-mentioned extra CQI and extra PMI.
And realizing the simplest directly method of this point is to increase new subdomain in broadband feedback pattern 1-2, it is used for
Feed back extra CQI and extra PMI.
But this mode directly increasing new subdomain in broadband feedback pattern 1-2, can be to broadband feedback
The feedback load of pattern 1-2 impacts.
Summary of the invention
Embodiments provide the feedback method of a kind of aperiodic channel status information (CSI), device
And mobile terminal, bring in order to the CSI feedback solving to strengthen in MU-MIMO technology and CS/CB technology
The problem of feedback load.
Based on the problems referred to above, the feedback of a kind of aperiodic channel status information CSI that the embodiment of the present invention provides
Method, including:
UE receives the channel quality indicator (CQI) request that base station sends；
When the instruction of described CQI request needs to feed back CSI, described UE is according to the finger of described CQI request
Showing, in addition to feedback tradition PMI and tradition CQI, the carrier resource always according to described UE configures mould
Formula, and available feedback resources, determine the extra CSI needing feedback；Described available feedback money
Source includes: the feedback resources increased on the basis of Conventional wide band feedback model 1-2 or described Conventional wide band
Feedback resources idle in feedback model 1-2；
Described available feedback resources is used to feed back the extra CSI determined.
The feedback device of a kind of aperiodic channel status information CSI that the embodiment of the present invention provides, including:
Receiver module, for receiving the channel quality indicator (CQI) request that base station sends；
Feedback module, for when the instruction of described CQI request needs to feed back CSI, asking according to described CQI
The instruction asked, in addition to feedback tradition PMI and tradition CQI, always according to the carrier resource of affiliated UE
Configuration mode, and available feedback resources, determine the extra CSI needing feedback；Described available
Feedback resources includes: the feedback resources increased on the basis of Conventional wide band feedback model 1-2 or described biography
Feedback resources idle in system broadband feedback pattern 1-2, and use described available feedback resources to feed back
The extra CSI determined.
The mobile terminal that the embodiment of the present invention provides, the above-mentioned non-periodic channel provided including the embodiment of the present invention
The feedback device of status information CSI.
The beneficial effect of the embodiment of the present invention includes:
The embodiment of the present invention provide aperiodic CSI feedback method, device and mobile terminal, connect at UE
When receiving the CQI request that instruction needs feedback CSI, in addition to feedback tradition PMI and tradition CQI,
Always according to the carrier resource configuration mode of described UE, and available feedback resources, determine and need feedback
Extra CSI, use available feedback resources to feed back this extra CSI, wherein, available feedback
Resource is the feedback resources or Conventional wide band feedback model increased on the basis of Conventional wide band feedback model 1-2
Feedback resources idle in 1-2.The embodiment of the present invention provide aperiodic CSI feedback method, device and
Mobile terminal, on the basis of existing technology, is not increasing feedback resources or the feelings of limited increase feedback resources
Under condition, it is achieved that the feedback of the CSI of enhancing, effectively support MU-MIMO and CS/CB scheme
Realize.
Accompanying drawing explanation
Fig. 1 provides for the embodiment of the present invention aperiodic CSI the flow chart of feedback method；
Fig. 2 uses idle carrier component feedback extra CQI and extra PMI for what the embodiment of the present invention provided
Schematic diagram；
Fig. 3 provides for the embodiment of the present invention aperiodic CSI the structure chart of feedback device.
Detailed description of the invention
Below in conjunction with Figure of description, a kind of aperiodic channel status information that the embodiment of the present invention is provided
(CSI) detailed description of the invention of feedback method, device and mobile terminal illustrates.
The embodiment of the present invention provides a kind of aperiodic CSI feedback method, as it is shown in figure 1, specifically include
Following steps:
S101, UE receive the channel quality indicator (CQI) request that base station sends；
S102, when this CQI request instruction need feed back CSI time, UE, according to the instruction of CQI request, removes
Outside feedback tradition PMI and tradition CQI, always according to the carrier resource configuration mode of UE, Yi Jike
The feedback resources utilized, determines the extra CSI needing feedback；Above-mentioned available feedback resources includes:
In the feedback resources increased on the basis of Conventional wide band feedback model 1-2 or Conventional wide band feedback model 1-2
Idle feedback resources；
S103, above-mentioned available feedback resources is used to feed back the extra CSI determined.
The embodiment of the present invention provide aperiodic CSI feedback method, to existing specification middle width strip feedback model
The feedback system that 1-2 (as shown in table 1) defines is improved, here, for convenience of explanation, at this
In inventive embodiments, by the content of broadband feedback pattern 1-2 as shown in table 1 that prior art specification defines,
Referred to as Conventional wide band feedback model 1-2.The use Conventional wide band feedback model 1-2 that existing specification is defined
CSI information such as CQI and PMI of feedback is called: tradition CQI and tradition PMI.For supporting
The CSI needing additional feedback in the CSI feedback of the enhancing of MU-MIMO and CS/CB is referred to as extra CSI,
Wherein extra CSI includes: extra CQI and extra PMI.Extra CQI and the concrete meaning of extra PMI
Same as the prior art, do not repeat them here.
In the feedback method of the CSI embodiment of the present invention provides above-mentioned aperiodic, aperiodic CSI feedback
It is the CQI request that sends according to base station of UE and initiates.Specifically, the scheme of above-mentioned S101-S103 is again
Can be divided into following two kinds of concrete implementation modes:
First kind of way: UE uses non-carrier aggregation scheme.
Under UE uses non-carrier aggregation scheme, in above-mentioned steps S101, the base station that UE receives sends
The CQI request of 1bit, when the CQI request of this 1bit is " 0 ", instruction need not feed back CSI, this 1bit
CQI request when being " 1 ", instruction needs to feed back CSI, and (content of CQI instruction belongs to prior art and exists
This does not describes in detail).When UE receives CQI request and is designated as " 1 ", then need to pass according to this indication feedback
System PMI and CQI, and, while feedback tradition PMI and CQI, in addition it is also necessary to feed back extra CSI,
It is preferred that due under the first technique, the finite capacity of feedback channel, therefore, extra for feedback
For CSI, can only feed back extra CQI, and not feed back extra PMI.
In first kind of way, above-mentioned S102-S103 i.e. according to the carrier resource configuration mode of UE, and
Available feedback resources, determines the extra CSI needing feedback, and uses available feedback resources
The extra CSI that feedback is determined, realizes especially by following manner:
1) as RI=1, except feedback tradition CQI and tradition PMI, in addition it is also necessary to use Conventional wide band feedback
The subdomain of pattern 1-2 (referring to content in table 1) middle width strip CQI code word 1 feeds back extra CQI, and the most anti-
Present extra PMI；
From Conventional wide band feedback model 1-2 (table 1) it can be seen that at the broadband CQI code of this pattern definition
The bit number that the subdomain of word 1 is corresponding is 0, then Conventional wide band feedback model 1-2 middle width strip CQI code in fact
The subdomain of word 1 is idle, then use the feedback resources of this free time to feed back extra CQI, it is possible to not
When increasing extra feedback resources, it is achieved the CSI feedback of enhancing.
Broadband feedback pattern 1-2 after improvement is as shown in table 2 below:
Table 2
2) as RI ＞ 1, on the basis of Conventional wide band feedback model 1-2, the extra CQI increased is used
The subdomain of code word 0 and extra CQI code word 1 feeds back extra CQI, does not feed back extra PMI.
Broadband feedback pattern 1-2 after improvement is as shown in table 3 below:
Table 3
In upper table 3, the bit number of extra CQI code word 0 and extra CQI code word 1 as a example by 3,
The embodiment of the present invention does not limit the numerical value that it is concrete, it would however also be possible to employ other bit numbers, such as bit number are
4 etc..
The second way: UE uses carrier aggregation mode.
Under UE uses carrier aggregation mode, in above-mentioned steps S101, UE receives 2 that base station sends
The CQI request of bit, when the CQI request of this 2bit is " 00 ", CSI is not fed back in instruction；" 01 " table
Show the CSI (CQI/PMI) of the main Serving cell only feeding back this UE place；" 10 " represent feedback set 1
In the CSI of Serving cell；" 11 " represent the CSI of Serving cell in feedback set 2, wherein, service little
Which district's set 1 and server set of cells 2 should feed back by the bitmap mapping instruction UE of high-level signaling
The CSI (content of CQI instruction belongs to prior art and will herein be described in detail) of Serving cell.
Need to feed back the feelings of CSI (such as CQI is " 10 ", " 11 " and " 12 ") in CQI request instruction
Under condition, need to judge in addition to the carrier component that feedback tradition PMI and tradition CQI is used, if
There is also available free carrier component；
If existing, use the carrier component of free time, according to the mode consistent with Conventional wide band feedback model 1-2
Feed back extra CQI and extra PMI；
If not existing, then using above-mentioned first kind of way to feed back, i.e. as RI=1, using Conventional wide band
The subdomain of feedback model 1-2 middle width strip CQI code word 1 feeds back extra CQI, and does not feed back extra PMI；When
During RI ＞ 1, on the basis of Conventional wide band feedback model 1-2, use extra CQI code word 0 He increased
The subdomain of extra CQI code word 1 feeds back extra CQI, does not feed back extra PMI.
It is preferred that the carrier component feedback extra CQI and extra PMI that above-mentioned use is idle, it is possible to use institute
Available free carrier component is numbered the carrier component of minimum to feed back extra CQI and extra PMI.
For example, current technology specification, could support up the polymerization of 5 carrier waves, and 5 carrier waves are entered
Line number, then high-level signaling can issue the bitmap of mono-5 bit of UE, and such as 10011, tell UE
Feed back traditional CQI and tradition PMI of the 1st, the 3rd and the 4th carrier wave, then in company with these 3 loads
While traditional CQI of ripple and tradition PMI feedback, it is possible to use idle carrier wave (i.e. carrier wave 2 He
Carrier wave 5) feed back extra CQI and extra PMI, due to the feedback capacity that total capacity is 5 carrier waves, this
Time can be used to feed back traditional CQI and tradition PMI and the volume of 1 carrier component of 3 carrier components
Outer CQI and extra PMI.It is preferred that as in figure 2 it is shown, can use carrier wave 2 to feed back extra CQI and
Extra PMI.
It is preferred that for the precision improving feedback further, in above-mentioned first method and second method,
Tradition PMI and extra PMI can feed back with specifically used following manner:
If base station is 2 antennas or 8 antennas, then fixed according to Conventional wide band feedback model 1-2 (i.e. table 1)
The mode of justice is fed back；
If base station is 4 antennas, then according to the size of RI, according to Conventional wide band feedback model 1-2 (i.e. table
1) base station defined be 8 antennas situation in the mode of RI=1,2,3 and 4 correspondence feed back；That is: exist
Base station is under 4 antenna case, as RI=1, uses in the situation that base station is 8 antennas defined with table 1
Mode corresponding for RI=1 feeds back tradition PMI (extra PMI)；Under base station is 4 antenna case, work as RI=2
Time, use the mode corresponding for RI=2 with the situation that base station is 8 antennas of table 1 definition to feed back tradition PMI
(extra PMI)；Under base station is 4 antenna case, as RI=3, use with the base station of table 1 definition is
Mode corresponding for RI=3 in the situation of 8 antennas feeds back tradition PMI (extra PMI)；And in base station be
Under 4 antenna case, as RI=4, use with table 1 definition the situation that base station is 8 antennas in RI=4 pair
The mode answered feeds back tradition PMI (extra PMI).
In the case of base station is 4 antennas, use the code book of 8 antennas of correspondence.
In order to be illustrated more clearly that the embodiment of the present invention provides aperiodic CSI feedback method, below with two
Individual concrete example explanation:
Example one:
Antenna for base station is 4 antennas, dual polarized antenna.Code word by the 1st row of 8 antenna code words, the 2nd row,
5th row and the 6th row composition.
UE is configured to non-carrier aggregation scheme, after UE receives the CQI request that base station sends, if CQI
The bit of request is " 1 ", and instruction needs to feed back CQI and PMI；
If RI=1, UE according to table 4 below feedback CQI and PMI (include tradition CQI, extra CQI and
Tradition PMI):
Table 4
| Broadband CQI code word 0 | 4 |
| Broadband extra CQI code word 0 | 3 |
| Broadband PMI1 | 4 |
| Subband PMI2 | 4N |
If RI ＞ 1, UE according to table 5 below feedback CQI and PMI (include tradition CQI, tradition PMI and
Extra CQI):
Table 5
| Feedback subdomain | RI=2 | RI=3 | RI=4 |
| Broadband CQI code word 0 | 4 | 4 | 4 |
| Broadband CQI code word 1 | 4 | 4 | 4 |
| Broadband PMI1 | 4 | 2 | 2 |
| Subband PMI2 | 4N | 4N | 3N |
| Broadband extra CQI code word 0 | 4 | 4 | 4 |
| Broadband extra CQI code word 1 | 4 | 4 | 4 |
Example two:
Antenna for base station is 4 antennas, dual polarized antenna.Code word by the 1st row of 8 antenna code words, the 2nd row,
5th row and the 6th row composition.
UE is configured to carrier aggregation mode, and carrier component has CC0, CC1, CC2 and CC3.Work as UE
After carrier component CC0 receives the CQI request that base station sends, find that the bit of CQI request is
" 01 ", instruction needs to feed back CQI/PMI；
UE on carrier component CC0 according on table 1 feed back tradition CQI and tradition PMI；
UE on carrier component CC1 according to table 6 below feed back extra CQI and extra PMI:
Table 6
| Feedback subdomain | RI=1 | RI=2 | RI=3 | RI=4 |
| Broadband extra CQI code word 0 | 4 | 4 | 4 | 4 |
| Broadband extra CQI code word 1 | 0 | 4 | 4 | 4 |
| The extra PMI1 in broadband | 4 | 4 | 2 | 2 |
| The extra PMI2 of subband | 4N | 4N | 4N | 3N |
Based on same inventive concept, the embodiment of the present invention additionally provide CSI a kind of aperiodic feedback device and
Mobile terminal, due to the feedback of principle and the CSI aforementioned aperiodic of this device and the solved problem of mobile terminal
Method is similar, and therefore the enforcement of this device and mobile terminal may refer to the enforcement of preceding method, in place of repetition
Repeat no more.
The embodiment of the present invention provide aperiodic CSI feedback device, as it is shown on figure 3, include:
Receiver module 301, for receiving the CQI request that base station sends；
Feedback module 302, for when CQI request instruction needs to feed back CSI, according to the finger of CQI request
Showing, in addition to feedback tradition PMI and tradition CQI, the carrier resource always according to affiliated UE configures mould
Formula, and available feedback resources, determine the extra CSI needing feedback；Available feedback resources bag
Include: the feedback resources increased on the basis of Conventional wide band feedback model 1-2 or Conventional wide band feedback model
Feedback resources idle in 1-2, and use available feedback resources to feed back the extra CSI determined.
Further, above-mentioned feedback module 302, if being configured to non-carrier polymerization mould specifically for affiliated UE
Formula, and during channel sequence instruction RI=1, use the subdomain of CQI code word 1 in Conventional wide band feedback model 1-2
Feed back extra CQI, and do not feed back extra PMI；If affiliated UE is configured to non-carrier aggregation scheme, and RI
During ＞ 1, on the basis of Conventional wide band feedback model 1-2, use the extra CQI code word 0 and volume increased
The subdomain of outer CQI code word 1 feeds back extra CQI, does not feed back extra PMI.
Further, above-mentioned feedback module 302, if being configured to carrier aggregation mode specifically for affiliated UE,
Judge outside the carrier component that affiliated UE feedback tradition PMI and tradition CQI is used, if also deposit
At idle carrier component；If existing, use the carrier component feedback extra CQI and extra PMI of free time；
If not existing, as RI=1, use the subdomain of Conventional wide band feedback model 1-2 middle width strip CQI code word 1
Feed back extra CQI, and do not feed back extra PMI；As RI ＞ 1, Conventional wide band feedback model 1-2's
On the basis of, use the subdomain of extra CQI the code word 0 and extra CQI code word 1 increased to feed back extra CQI,
Do not feed back extra PMI.
Further, above-mentioned feedback module 302, it is further used for using in idle carrier component and numbers
Little carrier component feeds back extra CQI and extra PMI.
Further, above-mentioned feedback module 302, specifically for by following manner feedback tradition PMI: if
Described base station is 2 antennas or 8 antennas, then according to the mode of described Conventional wide band feedback model 1-2 definition
Feedback tradition PMI；If described base station is 4 antennas, then according to the size of RI, according to wide with described tradition
In the situation that base station is 8 antennas with feedback model 1-2 definition, the mode of RI=1,2,3 and 4 correspondence is anti-
Feedback tradition PMI.
Further, above-mentioned feedback module 302, specifically for feeding back extra PMI by following manner: if
Base station is 2 antennas or 8 antennas, then feed back additionally according to the mode of Conventional wide band feedback model 1-2 definition
PMI；If base station is 4 antennas, then according to the size of RI, define according to Conventional wide band feedback model 1-2
The situation that base station is 8 antennas in the mode of RI=1,2,3 and 4 correspondence feed back extra PMI.
The embodiment of the present invention additionally provides a kind of mobile terminal, and this mobile terminal includes that the embodiment of the present invention provides
Above-mentioned aperiodic CSI feedback device.
Through the above description of the embodiments, those skilled in the art is it can be understood that arrive the present invention
Embodiment can be realized by hardware, it is also possible to the mode of the general hardware platform adding necessity by software is come real
Existing.Based on such understanding, the technical scheme of the embodiment of the present invention can embody with the form of software product
Come, this software product can be stored in a non-volatile memory medium (can be CD-ROM, USB flash disk,
Portable hard drive etc.) in, including some instructions with so that computer equipment (can be personal computer,
Server, or the network equipment etc.) perform 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 mould in accompanying drawing
Block or flow process are not necessarily implemented necessary to the present invention.
It will be appreciated by those skilled in the art that the module in the device in embodiment can describe according to embodiment
Carry out being distributed in the device of embodiment, it is also possible to carry out respective change and be disposed other than one of the present embodiment
Or in multiple device.The module of above-described embodiment can merge into a module, it is also possible to is further split into
Multiple submodules.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
The embodiment of the present invention provide aperiodic CSI feedback method, device and mobile terminal, connect at UE
When receiving the CQI request that instruction needs feedback CSI, in addition to feedback tradition PMI and tradition CQI,
Always according to the carrier resource configuration mode of described UE, and available feedback resources, determine and need feedback
Extra CSI, use available feedback resources to feed back this extra CSI, wherein, available feedback
Resource is the feedback resources or Conventional wide band feedback model increased on the basis of Conventional wide band feedback model 1-2
Feedback resources idle in 1-2.The embodiment of the present invention provide aperiodic CSI feedback method, device and
Mobile terminal, on the basis of existing technology, is not increasing feedback resources or the feelings of limited increase feedback resources
Under condition, it is achieved that the feedback of the CSI of enhancing, effectively support MU-MIMO and CS/CB scheme
Realize.
Further, in the embodiment of the present invention, under non-carrier aggregation scheme, only feed back extra CQI, no
Feed back extra PMI, further save feedback resources, and, in the case of base station is 4 antennas, profit
Feed back tradition PMI and extra PMI with the feedback arrangement of existing 8 antennas, effectively improve feedback
Precision.
Obviously, those skilled in the art can carry out various change and modification without deviating from this to the present invention
Bright spirit and scope.So, if the present invention these amendment and modification belong to the claims in the present invention and
Within the scope of its equivalent technologies, then the present invention is also intended to comprise these change and modification.
Claims (13)
1. the feedback method of an aperiodic channel status information CSI, it is characterised in that including:
UE receives the channel quality indicator (CQI) request that base station sends；
When the instruction of described CQI request needs to feed back CSI, described UE is according to the finger of described CQI request
Show, in addition to feedback tradition pre-coding matrix instruction PMI and tradition CQI, always according to described UE's
Carrier resource configuration mode, and available feedback resources, determine the extra CSI needing feedback；Described
Available feedback resources includes: on the basis of Conventional wide band feedback model 1-2 increase feedback resources or
Feedback resources idle in Conventional wide band feedback model 1-2 described in person；
Described available feedback resources is used to feed back the extra CSI determined.
2. the method for claim 1, it is characterised in that join according to the carrier resource of described UE
Put pattern, and available feedback resources, determine the extra CSI needing feedback, use described available
Feedback resources feed back the extra CSI determined, including:
If described UE is configured to non-carrier aggregation scheme, and during channel sequence instruction RI=1, uses tradition wide
Feed back extra CQI with the subdomain of channel quality indicator (CQI) code word 1 in feedback model 1-2, and do not feed back volume
Outer PMI；
If UE is configured to non-carrier aggregation scheme, and during RI ＞ 1, at described Conventional wide band feedback model 1-2
On the basis of, use the subdomain of extra CQI the code word 0 and extra CQI code word 1 increased to feed back additionally
CQI, does not feed back extra PMI.
3. the method for claim 1, it is characterised in that join according to the carrier resource of described UE
Put pattern, and available feedback resources, determine the extra CSI needing feedback, use described available
Feedback resources feed back the extra CSI determined, including:
If described UE is configured to carrier aggregation mode, it is judged that in described UE feedback tradition PMI and tradition
Outside the carrier component that CQI is used, if there is also the carrier component of free time；
If existing, use the carrier component feedback extra CQI and extra PMI of described free time；
If not existing, as RI=1, use Conventional wide band feedback model 1-2 middle width strip CQI code word 1
Subdomain feeds back extra CQI, and does not feed back extra PMI；As RI ＞ 1, feed back mould at described Conventional wide band
On the basis of formula 1-2, the subdomain of extra CQI the code word 0 and extra CQI code word 1 increased is used to feed back
Extra CQI, does not feed back extra PMI.
4. method as claimed in claim 3, it is characterised in that the carrier component of described use free time is anti-
Present extra CQI and extra PMI, specifically include:
Use the carrier component numbering minimum in the carrier component of free time to feed back described extra CQI with extra
PMI。
5. the method as described in any one of claim 1-4, it is characterised in that feedback tradition PMI, logical
Cross following manner to realize:
If described base station is 2 antennas or 8 antennas, then define according to described Conventional wide band feedback model 1-2
Mode feed back tradition PMI；
If described base station is 4 antennas, then according to the size of RI, according to described Conventional wide band feedback model
In the situation that base station is 8 antennas of 1-2 definition, the mode of RI=1,2,3 and 4 correspondence feeds back tradition PMI.
6. the method as described in claim 3 or 4, it is characterised in that feed back extra PMI, by under
The mode of stating realizes:
If described base station is 2 antennas or 8 antennas, then define according to described Conventional wide band feedback model 1-2
Mode feed back extra PMI；
If described base station is 4 antennas, then according to the size of RI, according to described Conventional wide band feedback model
In the situation that base station is 8 antennas of 1-2 definition, the mode of RI=1,2,3 and 4 correspondence feeds back extra PMI.
7. the feedback device of an aperiodic channel status information CSI, it is characterised in that including:
Receiver module, for receiving the channel quality indicator (CQI) request that base station sends；
Feedback module, for when the instruction of described CQI request needs to feed back CSI, asking according to described CQI
The instruction asked, in addition to feedback tradition pre-coding matrix instruction PMI and tradition CQI, always according to UE
Carrier resource configuration mode, and available feedback resources, determine the extra CSI needing feedback；Institute
State available feedback resources to include: the feedback resources increased on the basis of Conventional wide band feedback model 1-2
Or feedback resources idle in described Conventional wide band feedback model 1-2, and use described available feedback
Resource feeds back the extra CSI determined.
8. device as claimed in claim 7, it is characterised in that described feedback module, if specifically for
Described UE is configured to non-carrier aggregation scheme, and during channel sequence instruction RI=1, uses Conventional wide band feedback
In pattern 1-2, the subdomain of channel quality indicator (CQI) code word 1 feeds back extra CQI, and does not feed back extra PMI；
If described UE is configured to non-carrier aggregation scheme, and during RI ＞ 1, at described Conventional wide band feedback model 1-2
On the basis of, use the subdomain of extra CQI the code word 0 and extra CQI code word 1 increased to feed back additionally
CQI, does not feed back extra PMI.
9. device as claimed in claim 7, it is characterised in that described feedback module, if specifically for
Described UE is configured to carrier aggregation mode, it is judged that made at described UE feedback tradition PMI and tradition CQI
Carrier component outside, if there is also free time carrier component；If existing, use the load of described free time
Wave component feedback extra CQI and extra PMI；If not existing, as RI=1, use Conventional wide band feedback
The subdomain of pattern 1-2 middle width strip CQI code word 1 feeds back extra CQI, and does not feed back extra PMI；Work as RI
During ＞ 1, on the basis of described Conventional wide band feedback model 1-2, use the extra CQI code word 0 increased
Feed back extra CQI with the subdomain of extra CQI code word 1, do not feed back extra PMI.
10. device as claimed in claim 9, it is characterised in that described feedback module, is further used for
Use the carrier component numbering minimum in the carrier component of free time to feed back described extra CQI and extra PMI.
11. devices as described in any one of claim 7-10, it is characterised in that described feedback module, tool
Body for by following manner feedback tradition PMI: if described base station is 2 antennas or 8 antennas, then according to
The mode of described Conventional wide band feedback model 1-2 definition feeds back tradition PMI；If described base station is 4 antennas,
Then according to the size of RI, it is 8 antennas according to the base station defined with described Conventional wide band feedback model 1-2
In situation, the mode of RI=1,2,3 and 4 correspondence feeds back tradition PMI.
12. devices as described in claim 9 or 10, it is characterised in that described feedback module, specifically
For feeding back extra PMI by following manner: if described base station is 2 antennas or 8 antennas, then according to institute
The mode stating Conventional wide band feedback model 1-2 definition feeds back extra PMI；If described base station is 4 antennas, then
According to the size of RI, according to the feelings that base station is 8 antennas defined with described Conventional wide band feedback model 1-2
In shape, the mode of RI=1,2,3 and 4 correspondence feeds back extra PMI.
13. 1 kinds of mobile terminals, it is characterised in that described mobile terminal includes that claim 7-12 such as is appointed
The feedback device of one described aperiodic channel status information CSI.
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| US9450658B1 (en) * | 2015-08-06 | 2016-09-20 | Mediatek Inc. | Method for transmitting extra spatial layers over the wireless channel |
| WO2018058921A1 (en) * | 2016-09-29 | 2018-04-05 | 华为技术有限公司 | Hybrid channel state information feedback method, terminal device and base station |
| CN109039407A (en) | 2017-06-08 | 2018-12-18 | 索尼公司 | Electronic equipment, communication means and storage medium in wireless communication system |
| CN109391313B (en) * | 2017-08-11 | 2021-11-30 | 展讯通信（上海）有限公司 | Channel state information feedback method, user terminal, base station and readable storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101777965A (en) * | 2010-01-12 | 2010-07-14 | 中兴通讯股份有限公司 | Channel state information feedback method and user terminal |
| CN102118218A (en) * | 2010-01-06 | 2011-07-06 | 华为技术有限公司 | Feedback method of channel state information and user device |
| CN102239649A (en) * | 2008-12-02 | 2011-11-09 | Lg电子株式会社 | Method for transmitting reference signals in a downlink multiple input multiple output system |
| CN102238747A (en) * | 2010-04-30 | 2011-11-09 | 夏普株式会社 | Uplink physical control information transmitting method, base station and UE (user equipment) |
| CN102355322A (en) * | 2011-07-22 | 2012-02-15 | 电信科学技术研究院 | Transmission method and transmission device for channel quality indicator information |
-
2012
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102239649A (en) * | 2008-12-02 | 2011-11-09 | Lg电子株式会社 | Method for transmitting reference signals in a downlink multiple input multiple output system |
| CN102118218A (en) * | 2010-01-06 | 2011-07-06 | 华为技术有限公司 | Feedback method of channel state information and user device |
| CN101777965A (en) * | 2010-01-12 | 2010-07-14 | 中兴通讯股份有限公司 | Channel state information feedback method and user terminal |
| CN102238747A (en) * | 2010-04-30 | 2011-11-09 | 夏普株式会社 | Uplink physical control information transmitting method, base station and UE (user equipment) |
| CN102355322A (en) * | 2011-07-22 | 2012-02-15 | 电信科学技术研究院 | Transmission method and transmission device for channel quality indicator information |
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