CN106559123A - A kind of weights acquisition methods and device - Google Patents
A kind of weights acquisition methods and device Download PDFInfo
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- CN106559123A CN106559123A CN201510629380.XA CN201510629380A CN106559123A CN 106559123 A CN106559123 A CN 106559123A CN 201510629380 A CN201510629380 A CN 201510629380A CN 106559123 A CN106559123 A CN 106559123A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0634—Antenna weights or vector/matrix coefficients
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0636—Feedback format
- H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0658—Feedback reduction
- H04B7/0663—Feedback reduction using vector or matrix manipulations
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of weights acquisition methods and device, including base station acquisition channel quality information；When base station judges that channel quality meets the channel quality thresholds for pre-setting according to the channel quality information for obtaining, the value information of data distributing is adjusted.The technical scheme that the present invention is provided breaches dependence of the base station to reporting information by terminal, base station is allowed to give full play to own resource advantage, SRS resource and reporting information by terminal are combined, it is the RI of terminal to report according to channel quality status, and with reference to CQI come it is intelligent selected data distributing when weighting weights so that the more preferable match channels of weights of base station side, improve the spectrum efficiency of system, so as to improve systematic function, while also ensure that Consumer's Experience.
Description
Technical field
The present invention relates to multiuser MIMO technology, espespecially a kind of weights acquisition methods and device.
Background technology
Long Term Evolution (LTE, Long Term Evolution) system is quickly grown now, and LTE network is
Jing realizes commercialization in many places, with the continuing to increase of commercial paces, the rapid increasing of commercial user number
Plus, LTE system on the premise of Consumer's Experience is ensured needs to accommodate more users, and this is accomplished by adopting
With multiple-input and multiple-output (MIMO, Multiple-Input Multiple-Output) technology is strengthened, to meet
User is for the requirement of wireless system.
One of key technology as LTE system, MIMO wireless transmission technology are to solve to handle up
The sharp weapon of amount problem.Space resources utilization rate can be lifted, spectrum efficiency is improved by fully excavation,
To reach the purpose for strengthening customer experience and lift system capacity.MIMO wireless transmission technology can
With abundant excavated space resource, the availability of frequency spectrum is improved, and it can become next-generation mobile communications standard
The key point of 3GPP researchs.
Multiuser MIMO technology is multiplexed by Multi-User Dimension, it is possible to obtain more preferable system and capacity.
In recent years, multiuser MIMO is all widely paid attention in theoretical circles and industrial quarters.Multiuser MIMO
Downlink transfer technology needs the channel condition information that each user is obtained in base station end, to guarantee data transfer
Efficiency.In actual applications, instantaneous channel state information typically in user side by way of channel estimation
Obtain, and the limited feedback link of through-rate feeds back to base station.When feedback delay being concerned with more than channel
During the time, the channel condition information obtained in a certain transmission time by base station, the actual channel with the moment
Status information occurs completely unrelated situation.If the instantaneous channel state information that base station adopts is complete
Out-of-date, traditional multi-user transmission scheme effectively cannot be implemented, if in this case, still implement
Traditional transmission plan, systematic function can decline.That is, in this case, as UE feeds back
Channel condition information relatively lag behind, result in the decline of systematic function.
The content of the invention
In order to solve above-mentioned technical problem, the present invention provides a kind of weights acquisition methods and device, Neng Gouti
High systematic function, strengthens Consumer's Experience.
In order to reach the object of the invention, the invention provides a kind of weights acquisition methods, including：
Base station periodically obtains channel quality information；
Judge that channel quality meets the channel quality for pre-setting according to the channel quality information for obtaining in base station
During threshold value, the value information of data distributing is adjusted.
Alternatively, the channel quality information includes order instruction RI of channel, pre-coding matrix instruction PMI,
And channel quality indicator (CQI).
Alternatively, the channel quality thresholds are the first channel quality thresholds M；
The channel quality meets the channel quality thresholds for pre-setting：The RI for obtaining is less than or waits
In N, and the CQI for obtaining is less than the first channel quality thresholds M；Wherein, N is less than or equal to SRS
It is upper to send out antenna port number；
It is described adjustment data distributing value information be：Send out on SRS base station triggers aperiodic, and adopt
The weights of data distributing are calculated with SRS aperiodic for sending out upper recently；Wherein, on SRS aperiodic send out when
Between be spaced by base station according to channel conditions intelligent trigger.
Alternatively, the channel quality thresholds are second channel quality threshold M1；
The channel quality meets the channel quality thresholds for pre-setting：The RI for obtaining is less than or waits
In N, and the CQI for obtaining is less than second channel quality threshold M1；Wherein, N is less than or equal to
Antenna port number is sent out on SRS；
It is described adjustment data distributing value information be：The base station carries out Radio Resource connection RRC weights
Match somebody with somebody, from closed loop transmission pattern switching to open-loop transmission pattern, start, and adopt the cycle
SRS calculates the weights of data distributing.
Alternatively, the channel quality thresholds are the 3rd channel quality thresholds M2；
The channel quality meets the channel quality thresholds for pre-setting：The RI for obtaining is more than N,
The CQI for obtaining is more than or equal to the 3rd channel quality thresholds M2, and higher layer transmission pattern is open loop
Transmission mode is configured；Wherein, N is less than or equal on SRS antenna port number；
It is described adjustment data distributing value information be：The base station high level is transmitted pattern and matches somebody with somebody again, matches somebody with somebody
Closed loop transmission pattern is set to, under closed loop transmission pattern, base station is using the PMI for obtaining as under data
The weights sent out.
Alternatively, the channel quality information meets the channel quality thresholds for pre-setting and is：The institute of acquisition
RI is stated more than the N；Wherein, N is less than or equal to antenna port number；
The base station adopts the PMI of acquisition as the weights of the data distributing.
Alternatively, the method also includes：Process is weighted to issuing data using the weights of the calculating.
Present invention also offers a kind of weights acquisition device, including acquisition module, processing module, wherein,
Acquisition module, for obtaining channel quality information；
Processing module, pre-sets for judging that according to the channel quality information for obtaining channel quality meets
Channel quality thresholds when, adjust data distributing value information.
Alternatively, the processing module specifically for：
When the RI in the channel quality information of the acquisition is less than or equal to N, and the channel matter of the acquisition
When CQI in amount information is less than the first channel quality thresholds M, triggers, and adopt
The weights of data distributing are calculated with SRS aperiodic for sending out upper recently；
When the RI in the channel quality information of the acquisition is less than or equal to N, and the channel matter of the acquisition
When CQI in amount information is less than second channel quality threshold M1, carries out RRC and match somebody with somebody again, from closed loop transmission
Pattern switching is started, and calculated under data using cycle SRS to open-loop transmission pattern
The weights sent out；
When the RI in the channel quality information of the acquisition is more than N, in the channel quality information of the acquisition
CQI be more than or equal to the 3rd channel quality thresholds M2, and higher layer transmission pattern be open-loop transmission pattern
During configuration, under the closed loop transmission pattern after matching somebody with somebody again, made using the PMI in the channel quality information for obtaining
For the weights of data distributing；
When the RI in the channel quality information of the acquisition is more than N, using the channel quality letter for obtaining
Weights of the PMI in breath as data distributing；
Wherein, N is less than or equal on SRS antenna port number.
Alternatively, the processing module is additionally operable to：When the channel quality of the acquisition is unsatisfactory for pre-setting
Channel quality thresholds when, keep current weights acquisition modes.
Alternatively, the processing module is additionally operable to：Carry out adding to issuing data using the weights of the calculating
Power process.
Alternatively, the weights acquisition device is arranged in a base station, or is independent community.
Compared with prior art, technical scheme includes that base station obtains channel quality information；Base station root
When judging that channel quality meets the channel quality thresholds for pre-setting according to the channel quality information for obtaining, adjust
The value information that entire data is issued.The technical scheme that the present invention is provided breaches base station to reporting information by terminal
Dependence, allow base station to give full play to own resource advantage, SRS resource and reporting information by terminal combined
Get up, be the RI of terminal to report according to channel quality status, and intelligent to have selected number with reference to CQI
According to weighting weights when issuing so that the more preferable match channels of weights of base station side, the frequency of system is improved
Spectrum efficiency, so as to improve systematic function, while also ensure that Consumer's Experience.
Other features and advantages of the present invention will be illustrated in the following description, also, partly from froming the perspective of
Become apparent in bright book, or understood by implementing the present invention.The purpose of the present invention is excellent with other
Point can be realized and be obtained by specifically noted structure in description, claims and accompanying drawing.
Description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes of the application
Point, the schematic description and description of the present invention is used to explain the present invention, does not constitute to the present invention's
Improper restriction.In the accompanying drawings：
Fig. 1 is the flow chart of weights acquisition methods of the present invention；
Fig. 2 is the composition structural representation of weights acquisition device of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention become more apparent, below in conjunction with accompanying drawing
Embodiments of the invention are described in detail.It should be noted that in the case where not conflicting, this Shen
Please in embodiment and the feature in embodiment can mutual combination in any.
Fig. 1 is the flow chart of weights acquisition methods of the present invention, as shown in figure 1, including：
Step 100：Base station obtains channel quality information.
This step can be implemented and belong to this by base station configuration UE periodic report channel quality information
The conventional techniques of art personnel, the protection domain being not intended to limit the present invention, here no longer
Repeat.
Wherein, channel quality information can include the order instruction (RI, Rank Indication) of channel, pre-
Encoder matrix indicates (PMI, Precoding Matrix Indicator), and channel quality instruction (CQI,
Channel Quality Indicator)。
Step 101：Judge that channel quality meets what is pre-set according to the channel quality information for obtaining in base station
During channel quality thresholds, the value information of data distributing is adjusted.
In this step, channel quality thresholds can be set according to practical application scene, in channel condition
When good, channel quality thresholds can take height, and in bad channel conditions, channel quality thresholds can take low
A bit.
This step implement including：
System configuration UE only on send out SRS aperiodic when：
Channel quality in this step meets the channel quality thresholds for pre-setting：What if UE was reported
RI is less than or equal to N, and CQI is less than the first channel quality thresholds M, wherein, N is less than or equal to spy
Survey the antenna port number sent out in reference signal (SRS, Sounding Reference Signal).
In this step adjustment data distributing value information be：Send out on base station triggers SRS aperiodic, and
Using send out on the last time aperiodic SRS calculating the weights of data distributing.So, you can using meter
The weights of calculation are weighted process to issuing data.Wherein, the time interval sent out on SRS aperiodic, by
According to channel conditions intelligent trigger, such as, base station can be according to negative response in specified time T for base station
(NACK) report number of times to trigger, if at the appointed time in T, NACK's reports number of times big
In activation threshold value N1 set in advance, then, trigger；Wherein, T's is big
It is little to be related to response sensitivity, it is desirable to sensitivity it is higher, it is intended that the value of time T is less；Wherein,
It should be readily apparent to one skilled in the art that the determination of N1 is relevant with the Block Error Rate of system requirements, Block Error Rate is lower,
Then the value of N1 is lower.It should be noted that be merely illustrative here how to trigger SRS aperiodic
It is upper to send out, but be not intended to limit the present invention the mode send out on triggering SRS aperiodic, and, how basis
SRS belongs to the known technology of those skilled in the art the weights that calculate data distributing, is not used to limit
Protection scope of the present invention, is repeated no more here.
Or,
System configuration UE only on send out cycle SRS when：
Channel quality in this step meets the channel quality thresholds for pre-setting：What if UE was reported
RI is less than or equal to N, and CQI is less than second channel quality threshold M1；Wherein, N is less than or equal to
Antenna port number is sent out on SRS.Now,
In this step adjustment data distributing value information be：Base station carries out Radio Resource connection (RRC)
Match somebody with somebody again, from closed loop transmission pattern switching to open-loop transmission pattern, start, and using week
Phase SRS is calculating the weights of data distributing.So, you can carried out to issuing data using the weights for calculating
Weighting is processed.
Or,
Channel quality in this step meets the channel quality thresholds for pre-setting：What if UE was reported
RI is more than N, and CQI is more than or equal to the 3rd channel quality thresholds M2, and higher layer transmission pattern is open loop
Transmission mode is configured；Wherein, N is less than or equal on SRS antenna port number.Now,
In this step adjustment data distributing value information be：Base station is transmitted mould by high-level signaling
Formula is matched somebody with somebody again, is configured to closed loop transmission pattern, under closed loop transmission pattern, the PMI that base station is reported using UE
As the weights of the data distributing after adjustment.So, you can carried out to issuing data using the weights for calculating
Weighting is processed.
In this step, judge that channel quality meet according to the channel quality information for obtaining when base station and set in advance
When the RI that the channel quality thresholds put, i.e. UE are reported is more than N, wherein, N is less than or equal to SRS
It is upper to send out an antenna port number, weights of the PMI that base station is reported using UE as data distributing, to issuing number
According to being weighted process.
By the above-mentioned process that the channel quality thresholds for pre-setting are met in channel quality of this step, in RI
During less than or equal to N, modulation and coding strategy (MCS) are improved, that is to say, that improve system
Spectrum efficiency, so as to improve systematic function.
When channel quality is unsatisfactory for the channel quality thresholds for pre-setting, i.e., except above-mentioned satisfaction pre-sets
Channel quality thresholds other situations, namely weights change condition keeps current weights when being unsatisfactory for
Acquisition modes.
It should be noted that above-mentioned first channel quality thresholds M, second channel quality threshold M1, with
And the 3rd channel quality thresholds M2 can be with identical, it is also possible to part is identical, it is also possible to different, this area
Technical staff understands that its concrete value depends on practical application scene.
It should be noted that under open-loop transmission, the acquisition of channel quality information can pass through intelligent base station
Carry out offering acquisition in aperiodic channel status instruction (CSI).
The technical scheme that the present invention is provided, breaches dependence of the base station to reporting information by terminal, allows base station to fill
Own resource advantage has been waved in distribution, SRS resource and reporting information by terminal is combined, according to channel matter
Amount situation：That is the RI of terminal to report, and with reference to CQI come it is intelligent selected data distributing when weighting
Weights so that the more preferable match channels of weights of base station side, improve the spectrum efficiency of system, so as to carry
High systematic function, while also ensure that Consumer's Experience.
The inventive method is described in detail with reference to specific embodiment.
In the first embodiment, it is assumed that UE supports that SRS single antenna port reports aperiodic, and this reality
Apply in example, it is assumed that N=1, the first channel quality thresholds M=7；So, the technology for providing according to the present invention
Scheme, base station process packet and include：
First, base station configuration UE periodic report channel quality information, comprising RI, PMI, CQI, and
PTI etc..
Then, base station judges：If the RI that UE is reported is 1, and CQI is less than the first channel quality threshold
Value M, then send out on base station triggers SRS aperiodic, and using report recently aperiodic SRS calculating number
According to the weights for issuing.Wherein, in the first embodiment, it is assumed that at the appointed time in T, NACK's is upper
When report number of times is more than activation threshold value N1 set in advance, triggers, wherein,
The value of N1 depends on the Block Error Rate of system requirements.The Block Error Rate of system requirements is lower, and the value of N1 is got over
It is little；
If RI is more than 1, base station carries out adding to issuing data as weights using the PMI that UE is reported
Power process.The implementation of first embodiment, can not start the switching of Open-closed-loop transmission mode.
When channel quality is unsatisfactory for the channel quality thresholds that pre-set i.e. weights change condition is unsatisfactory for when,
Keep current weights acquisition modes.
In a second embodiment, it is assumed that UE supports that 2 antenna ports of SRS are reported aperiodic, and this reality
Apply in example, it is assumed that N=2, the first channel quality thresholds M=7；So, the technology for providing according to the present invention
Scheme, base station process packet and include：
First, base station configuration UE periodic report channel quality information, comprising RI, PMI, CQI, and
PTI etc..
Then, base station judges：If the RI that UE is reported is less than or equal to 2, and CQI is less than the first letter
Road quality threshold M, then send out on base station triggers SRS aperiodic, and using upper SRS aperiodic for sending out recently
To calculate the weights of data distributing.The time interval that aperiodic is sent out on SRS can be by base station according to channel shape
Condition intelligent trigger；
If RI is more than 2, base station is weighted process to issuing data using the PMI that UE is reported.
When channel quality is unsatisfactory for the channel quality thresholds that pre-set i.e. weights change condition is unsatisfactory for when,
Keep current weights acquisition modes.
In the third embodiment, it is assumed that UE supports SRS single antenna periodic reports, and in the present embodiment,
Assume N=1, second channel quality threshold M1=8, the 3rd channel quality thresholds M2=11；So, press
According to the technical scheme that the present invention is provided, base station processes packet and includes：
First, base station configuration UE periodic report channel quality information, comprising RI, PMI, CQI, and
PTI etc..
Then, base station judges：If the RI that UE is reported is 1, and CQI is less than second channel quality threshold
Value M1, then base station carry out RRC and match somebody with somebody again, from closed loop transmission pattern switching to open-loop transmission pattern, start
Send out on cycle SRS, and using cycle SRS calculating the weights of data distributing；
If RI is more than or equal to the 3rd channel quality thresholds M2, and higher layer transmission mould more than 1, CQI
Formula is open-loop transmission pattern configurations, then base station high level is transmitted pattern and matches somebody with somebody again, is configured to closed loop transmission mould
Formula, under closed loop transmission pattern, the PMI that base station is reported using UE is weighted process to issuing data；
If RI is more than 1, base station is weighted process to issuing data using the PMI that UE is reported.
When channel quality is unsatisfactory for the channel quality thresholds that pre-set i.e. weights change condition is unsatisfactory for when,
Keep current weights acquisition modes.
In the fourth embodiment, it is assumed that UE supports to send out on the 2 terminal port antennae cycles of SRS, and this enforcement
In example, it is assumed that N=2, second channel quality threshold M1=8, the 3rd channel quality thresholds M2=11；That
, according to the technical scheme that the present invention is provided, base station processes packet and includes：
First, base station configuration UE periodic report channel quality information, comprising RI, PMI, CQI, and
PTI etc..
Then, base station judges：If the RI that UE is reported is less than or equal to 2, and CQI is less than the second letter
Road quality threshold M1, then base station carry out RRC and match somebody with somebody again, from closed loop transmission pattern switching to open-loop transmission mould
Formula, starts, and using cycle SRS calculating the weights of data distributing；
If RI is more than or equal to the 3rd channel quality thresholds M2, and higher layer transmission mould more than 2, CQI
Formula is configured for open-loop transmission formula, then the high level of base station is transmitted pattern and matches somebody with somebody again, is configured to closed loop transmission mould
Formula, and under closed loop transmission pattern, base station is weighted place to issuing data using the PMI that UE is reported
Reason；
If RI is more than 2, base station is weighted process to issuing data using the PMI that UE is reported.
When channel quality is unsatisfactory for the channel quality thresholds that pre-set i.e. weights change condition is unsatisfactory for when,
Keep current weights acquisition modes.
N in above-described embodiment is less than or equal on SRS antenna port number.
In above-described embodiment.Under open-loop transmission, the acquisition of channel quality information can be entered by intelligent base station
Acquisition is offered on row CSI aperiodic.
Above method is channel information of the base station according to acquisition, and Open-closed-loop transmission means is combined, intelligent
The value information of adaptive channel is provided, with match channels, the handling capacity of lift system.
Fig. 2 is the composition structural representation of weights acquisition device of the present invention, as shown in Fig. 2 at least including
Acquisition module, processing module, wherein,
Acquisition module, for obtaining channel quality information；
Processing module, pre-sets for judging that according to the channel quality information for obtaining channel quality meets
Channel quality thresholds when, adjust data distributing value information.
Wherein, processing module specifically for：
When the RI in the channel quality information for obtaining is less than or equal in N, and the channel quality information for obtaining
CQI when being less than the first channel quality thresholds M, trigger, and using on recently
Send out aperiodic SRS calculating the weights of data distributing.Wherein, N is less than or equal on SRS antenna
Port number；
When the RI in the channel quality information for obtaining is less than or equal in N, and the channel quality information for obtaining
Less than second channel quality threshold M1 when, carry out RRC and match somebody with somebody again, from closed loop transmission pattern switching to opening
Ring transmission mode, starts, and using cycle SRS calculating the weights of data distributing；
Wherein, N is less than or equal on SRS antenna port number；
When the RI in the channel quality information for obtaining is more than N, the CQI in the channel quality information of acquisition
More than or equal to the 3rd channel quality thresholds M2, and higher layer transmission pattern is when being open-loop transmission pattern configurations,
Under closed loop transmission pattern after matching somebody with somebody again, using obtain channel quality information in PMI as adjustment after
Data distributing weights；Wherein, N is less than or equal on SRS antenna port number；
When the RI in the channel quality information for obtaining is more than N, using in the channel quality information for obtaining
PMI as data distributing weights.
Processing module is additionally operable to：When channel quality is unsatisfactory for the channel quality thresholds for pre-setting, keep
Current weights acquisition modes.
Processing module is additionally operable to：Process is weighted to issuing data using the weights for calculating.
The weights acquisition device that the present invention is provided can be arranged in a base station, it is also possible to stand alone as an entity.
The above, preferred embodiments only of the invention are not intended to limit the protection model of the present invention
Enclose.All any modification, equivalent substitution and improvements within the spirit and principles in the present invention, done etc.,
Should be included within the scope of the present invention.
Claims (12)
1. a kind of weights acquisition methods, it is characterised in that include：
Base station periodically obtains channel quality information；
Judge that channel quality meets the channel quality for pre-setting according to the channel quality information for obtaining in base station
During threshold value, the value information of data distributing is adjusted.
2. weights acquisition methods according to claim 1, it is characterised in that the channel quality letter
Breath includes order instruction RI, pre-coding matrix instruction PMI of channel, and channel quality indicator (CQI).
3. weights acquisition methods according to claim 2, it is characterised in that the channel quality threshold
It is worth for the first channel quality thresholds M；
The channel quality meets the channel quality thresholds for pre-setting：The RI for obtaining is less than or waits
In N, and the CQI for obtaining is less than the first channel quality thresholds M；Wherein, N is less than or equal to SRS
It is upper to send out antenna port number；
It is described adjustment data distributing value information be：Send out on SRS base station triggers aperiodic, and adopt
The weights of data distributing are calculated with SRS aperiodic for sending out upper recently；Wherein, on SRS aperiodic send out when
Between be spaced by base station according to channel conditions intelligent trigger.
4. weights acquisition methods according to claim 2, it is characterised in that the channel quality threshold
It is worth for second channel quality threshold M1；
The channel quality meets the channel quality thresholds for pre-setting：The RI for obtaining is less than or waits
In N, and the CQI for obtaining is less than second channel quality threshold M1；Wherein, N is less than or equal to
Antenna port number is sent out on SRS；
It is described adjustment data distributing value information be：The base station carries out Radio Resource connection RRC weights
Match somebody with somebody, from closed loop transmission pattern switching to open-loop transmission pattern, start, and adopt the cycle
SRS calculates the weights of data distributing.
5. weights acquisition methods according to claim 2, it is characterised in that the channel quality threshold
It is worth for the 3rd channel quality thresholds M2；
The channel quality meets the channel quality thresholds for pre-setting：The RI for obtaining is more than N,
The CQI for obtaining is more than or equal to the 3rd channel quality thresholds M2, and higher layer transmission pattern is open loop
Transmission mode is configured；Wherein, N is less than or equal on SRS antenna port number；
It is described adjustment data distributing value information be：The base station high level is transmitted pattern and matches somebody with somebody again, matches somebody with somebody
Closed loop transmission pattern is set to, under closed loop transmission pattern, base station is using the PMI for obtaining as under data
The weights sent out.
6. weights acquisition methods according to claim 2, it is characterised in that the channel quality letter
Breath meets the channel quality thresholds for pre-setting：The RI for obtaining is more than the N；Wherein, N is little
In or be equal to antenna port number；
The base station adopts the PMI of acquisition as the weights of the data distributing.
7. weights acquisition methods according to any one of claim 3～6, it is characterised in that the party
Method also includes：Process is weighted to issuing data using the weights of the calculating.
8. a kind of weights acquisition device, it is characterised in that including acquisition module, processing module, wherein,
Acquisition module, for obtaining channel quality information；
Processing module, pre-sets for judging that according to the channel quality information for obtaining channel quality meets
Channel quality thresholds when, adjust data distributing value information.
9. weights acquisition device according to claim 8, it is characterised in that the processing module tool
Body is used for：
When the RI in the channel quality information of the acquisition is less than or equal to N, and the channel matter of the acquisition
When CQI in amount information is less than the first channel quality thresholds M, triggers, and adopt
The weights of data distributing are calculated with SRS aperiodic for sending out upper recently；
When the RI in the channel quality information of the acquisition is less than or equal to N, and the channel matter of the acquisition
When CQI in amount information is less than second channel quality threshold M1, carries out RRC and match somebody with somebody again, from closed loop transmission
Pattern switching is started, and calculated under data using cycle SRS to open-loop transmission pattern
The weights sent out；
When the RI in the channel quality information of the acquisition is more than N, in the channel quality information of the acquisition
CQI be more than or equal to the 3rd channel quality thresholds M2, and higher layer transmission pattern be open-loop transmission pattern
During configuration, under the closed loop transmission pattern after matching somebody with somebody again, made using the PMI in the channel quality information for obtaining
For the weights of data distributing；
When the RI in the channel quality information of the acquisition is more than N, using the channel quality letter for obtaining
Weights of the PMI in breath as data distributing；
Wherein, N is less than or equal on SRS antenna port number.
10. weights acquisition device according to claim 9, it is characterised in that the processing module
It is additionally operable to：When the channel quality of the acquisition is unsatisfactory for the channel quality thresholds for pre-setting, keep working as
Front weights acquisition modes.
The 11. weights acquisition device according to claim 9 or 10, it is characterised in that the process
Module is additionally operable to：Process is weighted to issuing data using the weights of the calculating.
12. weights acquisition device according to claim 8, it is characterised in that the weights are obtained
Device is arranged in a base station, or is independent community.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510629380.XA CN106559123B (en) | 2015-09-28 | 2015-09-28 | Weight value obtaining method and device |
| PCT/CN2016/081604 WO2017054457A1 (en) | 2015-09-28 | 2016-05-10 | Method and device for acquiring weight |
| JP2018515942A JP6553292B2 (en) | 2015-09-28 | 2016-05-10 | Weight value acquisition method and apparatus |
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| CN201510629380.XA CN106559123B (en) | 2015-09-28 | 2015-09-28 | Weight value obtaining method and device |
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| CN106559123A true CN106559123A (en) | 2017-04-05 |
| CN106559123B CN106559123B (en) | 2021-10-19 |
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| JP (1) | JP6553292B2 (en) |
| CN (1) | CN106559123B (en) |
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| CN111615200A (en) * | 2020-04-10 | 2020-09-01 | 洛阳理工学院 | Unmanned aerial vehicle auxiliary communication resource allocation method of Hybrid NOMA network |
| CN113645001A (en) * | 2021-08-11 | 2021-11-12 | 北京邮电大学 | SRS period configuration method for time-varying channel under high-speed mobile scene |
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Also Published As
| Publication number | Publication date |
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| JP2018534840A (en) | 2018-11-22 |
| WO2017054457A1 (en) | 2017-04-06 |
| JP6553292B2 (en) | 2019-07-31 |
| CN106559123B (en) | 2021-10-19 |
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