CN106033987A - Method and device for increasing sounding reference signal capacity - Google Patents
Method and device for increasing sounding reference signal capacity Download PDFInfo
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Abstract
The invention relates to a method and device for increasing sounding reference signal capacity in a full dimension multiple-input-multiple-output (FD-MIMO) technical system. The invention provides an SRS enhancing method and device used in the FD-MIMO system, and therefore SRS capacity is expanded. Evoluted base station (eNB) broadcast has multiple pre-defined beams at different inclination angles; RSRP reports about the beams of user equipment (UE) are received; SRS resource allocation among UE is executed based on the reports.
Description
Technical field
The present invention generally relates to field of telecommunications, and more particularly to strengthen detection reference signal (SRS,
Sounding Reference Signal) method and device of capacity.
Background technology
Along with the development of active antenna array (Active Antenna Array), full dimension Multiple Input Multiple Output
(FD-MIMO, Full Dimension Multi-Input-Multi-Output) is suggested.FD-MIMO uses extensive
Two dimension active antenna array, it is possible to use both the height of active antenna plane offer and azimuth come for squillion
There is provided service while of mobile terminal, with frequency thus power system capacity is substantially improved.Such as, FD-MIMO can support many
Reach high level multi-user's multiple-input and multiple-output (MU-MIMO) transmission of 10 subscriber equipmenies (UE).
Yet with the channel reciprocity of time division duplex (TDD, Time Division Duplex) system, for up
Up-link SRS that downlink channel state information (CSI, Channel State Information) is measured can be used for
The downlink of TDD.This makes the number of UE that the accuracy of CSI measured based on SRS can be supported by system
Purpose affects.Therefore the increase that can support the number of UE in FD-MIMO system also makes wherein channel condition information
The acquisition of CSI is in the face of unprecedented challenge.Existing long evolving system (LTE, Long Term Evolution) of future generation
In orthogonal SRS resource be not enough to support UE the most intensive in FD-MIMO system.
So that a kind of SRS mechanism and enhancement mechanism for FD-MIMO system, to extend SRS capacity.
Summary of the invention
An object of the present invention is to provide the method and device strengthening SRS capacity, can meet FD-MIMO system
The demand of middle SRS resource.
The method that the present invention provides may be used for strengthening detection reference signal capacity in multi-input multi-output system, comprising:
Base station selects multiple elevations angle according to the maximum elevation scope of antenna；Base station based on multiple elevations angle to respectively to downlink join
Examine signal to be weighted processing to obtain multiple weighted reference signals；Base station sends multiple weighted reference signals and sets to user
Standby；Base station receives from subscriber equipment and corresponds respectively to multiple feedbacks of each in multiple weighted reference signal；And base station
The detection reference signal distribution of subscriber equipment is carried out based on multiple feedbacks.
According to a preferred embodiment of the present invention, wherein said base station selects multiple elevations angle to enter according to maximum elevation scope
One step comprises the cell characteristic according to described base station and determines described maximum elevation scope, described maximum elevation scope is divided into
L the elevation angle, L is integer.
According to another preferred embodiment of the present invention, wherein it is divided into L the elevation angle further described maximum elevation scope
It is equally divided into L subrange including by described maximum elevation scope, then calculates the angle of maximum elevation in each subrange
Value.
According to another preferred embodiment of the present invention, channel condition information-reference signal process is passed through in wherein said base station
Multiple weighting detection reference signals are sent to described subscriber equipment.
According to another preferred embodiment of the present invention, wherein corresponding to each in the plurality of weighted reference signal
Multiple feedbacks are Reference Signal Received Power or channel quality instruction.
According to another preferred embodiment of the present invention, wherein said multi-input multi-output system is that full dimension multi input is many
Output system.
According to another preferred embodiment of the present invention, wherein said base station carries out described user based on the plurality of feedback
The detection reference signal distribution of equipment comprises further matches with by described user in angle domain to described subscriber equipment
Device packets, is wherein separable with the subscriber equipment in group in angle domain.
According to another preferred embodiment of the present invention, in the most each group, take identical time, frequency and code division resource
Detectable signal resource can be transmitted in this group.
According to another preferred embodiment of the present invention, the number of subscriber equipment of wherein matching is set by the user needing detection
The initial probe reference signal orthogonal resource of standby number and this community, place, base station determines.
According to another preferred embodiment of the present invention, wherein said weighting processes the wavelength being based further on described antenna
And distance between adjacent antenna in same column.
Present invention also offers and may be used for strengthening detection reference signal capacity in multi-input multi-output system accordingly
Base station.
The present invention can specify the corresponding relation between UE and angle, by the SRS transmission in multiple UEs in territory, the elevation angle
On carry out multiplexing, thus strengthen the capacity of SRS in FD-MIMO.
Accompanying drawing explanation
By hereinafter only by means of example and some embodiments of describing equipment and/or method referring to accompanying drawing, described
In accompanying drawing:
Fig. 1 is the communication system schematic diagram of application FD-MIMO；
Fig. 2 (a) and Fig. 2 (b) respectively show territory, the elevation angle and the response of orientation angular domain；
Fig. 3 is method flow diagram according to an embodiment of the invention；
Fig. 4 is UE and evolved base station (eNB) orientation according to an embodiment of the invention schematic diagram；
Fig. 5 (a) and Fig. 5 (b) is to divide according to traditional approach and SRS according to an embodiment of the invention respectively
Join schematic diagram；
Fig. 6 is the structural representation of communication system according to an embodiment of the invention, and it comprises base station and user sets
Standby.
Detailed description of the invention
Hereinafter in connection with accompanying drawing, the one exemplary embodiment of the present invention is described.For clarity and conciseness,
All features of actual embodiment are not the most described.But, it should be understood that, the present invention is not intended to
Example embodiment is limited to disclosed particular form, but on the contrary, example embodiment will contain all at this
The bright amendment in scope, equivalent and substitute.
Generally, multiple users use orthogonal SRS resource on frequency domain (such as, by interweave FDMA
With multiple cyclic shifts, i.e. code division resource), or (such as, being offset by different SRS) in time domain.
These resources are all difficult to extend further.Such as, bigger interleave factor can shorten the length of basic sequence, thus
Expand the interference of minizone；And bigger cyclic shift, i.e. code division number of resources may aggravate difference UE in same community
Between interference；The longer SRS cycle can cause the reduction of the tracking accuracy of fading channel.
Present applicant proposes the mechanism and enhancement mechanism of a kind of SRS transmission and distribution, and provide corresponding method and apparatus.?
When using flat surface active aerial array, the method and apparatus that the present invention proposes may be used for strengthening SRS transmission and distribution.
The method and apparatus that the present invention proposes both may be used for time division duplex (TDD, Time Division Duplex) system, also
May be used for FDD (FDD, Frequency Division Duplex) system.
For FD-MIMO, owing to deploying flat surface active aerial array, it has controlled placed longitudinally antenna.
Compared with azimuth, multi-antenna channel in height has different characteristics.Such as, compared with azimuth, on height
Channel covariance matrices angle domain response there is more preferable directionality.In view of this, the present invention is by multiple UEs
SRS transmission on territory, the elevation angle, carry out multiplexing, to strengthen the capacity of SRS in FD-MIMO.The present invention is based on the elevation angle
The angle of departure (AoD, Angle of Departure) territory, it is provided that a new dimension strengthens SRS capacity.
In order to overcome the many restrictions in actual application, present invention also offers relevant downlink (DL, Downlink)
Reference signal transmission and feedback mechanism, and the SRS method of salary distribution reported based on corresponding UE.Based on these machines
System, base station, as evolved base station (eNB) can efficiently perform the distribution of angle domain SRS.
Fig. 1 is the communication system schematic diagram of application FD-MIMO.Communication system 100 includes a community, described
Community includes eNB 101, first user equipment (UE1) 102 and the second subscriber equipment (UE2) 103.ENB 101 includes
One active antenna array 111.UE1 102 and UE2 103 is positioned in the building that described community is covered, and UE1 102
Relative to eNB 101, there is the different elevations angle from UE2 103.
Fig. 2 (a) and Fig. 2 (b) respectively show UE1 102 and UE2 103 at territory, the elevation angle and the sound of orientation angular domain
Should.From Fig. 2 (a) and Fig. 2 (b), compared to azimuth, UE1 102 and UE2 103 is in territory, the elevation angle
The difference between angle corresponding to good response becomes apparent from.Further, for each UE, compared to azimuth,
Its optimal response in territory, the elevation angle also becomes apparent to other difference between corresponding.Therefore, compared to azimuth, no
With the UE response in territory, the elevation angle, there is less overlap, therefore, territory, the elevation angle more easily discriminates between different UE's
Channel.
Being different from traditional time/frequency SRS resource distributed by eNB, AoD is actually determined by communication environments
Fixed.Therefore, use AoD as the multiplexed resource of SRS, then need to solve following technical problem:
Physical location and the communication environments of UE self, therefore UE are depended in different UE responses on territory, the elevation angle
Not necessarily can be separated；
Even if can separate, the corresponding relation between UE and angle is also uncertain.
In order to solve every technical problem set forth above, present invention employs specific terminal feedback, described specifically
Terminal feedback is based on the descending chain using vertical weighted value (that is, comprising the weighted value of elevation information or elevation information)
Road reference signal.The main process of method proposed by the invention is substantially: eNB broadcast has different inclination angle
Multiple predefined wave beams；Receive UE resource reference signal power (RSRP, Reference for these wave beams
Signal Receiving Power) or channel quality instruction (CQI, Channel Quality Indicator) report；So
After based on these report perform between UE SRS resource distribution.Concrete, according to one embodiment of the invention, use
Include in strengthening the method for detection reference signal capacity in multi-input multi-output system: base station is according to the maximum elevation of antenna
Scope selects multiple elevations angle；Downlink reference signal is weighted respectively processing to obtain by base station based on multiple elevations angle
Multiple weighted reference signals；Base station sends multiple weighted reference signals to subscriber equipment；Base station connects from described subscriber equipment
Receive and correspond respectively to multiple feedbacks of each in the plurality of weighted reference signal；And base station is based on the plurality of feedback
Carry out the detection reference signal distribution of subscriber equipment.
Referring to Fig. 3, method flow 300 according to an embodiment of the invention is described.
In step 310 place, determine maximum elevation scope.Maximum elevation scope can be according to concrete communication environments, i.e.
The feature of community, place, base station determines.For example, can be according to the destination service object of eNB or targeted customer's (example
Such as, UE) residing for particular location predefine maximum elevation scope.Specifically, can be according to eNB and mesh
The relative level distance of mark service object or target UE and relative height differential determine maximum elevation scope.Such as,
Between peak or the highest target UE and eNB according to destination service object relative level distance and relatively high
It is poor to spend, and determines that eNB is θ to the peak of destination service object or the highest target UE and the angle of horizontal planemax,
I.e. θmaxRepresent the elevation angle angle of departure of maximum possible；Minimum point according to destination service object or minimum target UE with
Relative level distance between eNB and relative height differential, determine that eNB arrives the peak of destination service object or minimum
The angle of target UE and horizontal plane be θmin, i.e. θminRepresent the minimum possible elevation angle angle of departure.θmaxDeduct θminI.e.
For maximum elevation scope.
When the distribution of the particular location residing for destination service object or target UE changes when, it is also possible to according to
This change dynamically adjusts maximum elevation scope.
In step 320 place, Further Division maximum elevation scope.Maximum elevation scope can be equally divided into L son
Scope and then obtain L the elevation angle.Wherein, the maximum occurrences of L is not more than the channel condition information reference that system is supported
The maximum number of signal CSI-RS process.Maximum elevation in each subrange can be calculated according to equation (1)
Angle value.
Wherein, the angle value of the maximum elevation during θ is the l subrange.
Subrange can also be dynamically adjusted according to the change that the particular location of destination service object or target UE are distributed
Divide.For example, when the UE in certain subrange is the most intensive, can be with subrange described in Further Division.
Such as, the UE number in subrange l exceedes high threshold Vh, and last up to predetermined lasting time, then can enter one
Step divides subrange l.According to another embodiment, when the UE density in certain subrange is too low, can be by described son
Scope merges with neighbouring subrange.Such as, the UE number in subrange l is less than lowest threshold Vl, and last up to
Predetermined lasting time, then can merge molecular range l with neighbouring subrange (such as, l+1 or l-1).
In step 330 place, calculate weighted value.The weighted value of each subrange can be calculated according to equation (2).
Each weighted value comprises an elevation information, and it is corresponding with a subrange.Those skilled in the art it is recognised that
In other 3GPP version, additionally it is possible to obtain comprising the weighted value of elevation information according to alternate manner, and according to it
What its mode obtained comprises the weighted value of elevation information, all can be used to realize the goal of the invention of the present invention.
Equation (2)
Wherein, the distance between adjacent antennas during λ and d represents wavelength and antenna array respectively.
In step 340 place, it is weighted reference signal processing.For example, can be the of the n-th antenna array
On m element, eNB launches the reference signal drawn according to equation (2).
Wherein qnIt it is the original symbol in reference symbol sequence.
By original reference symbol sebolic addressing is weighted, the reference marks comprising elevation information can be obtained.That is, may be used
The dimension in territory, the elevation angle is increased with the carrier wave that identity element in aerial array was sent on identical time and same frequency.Also
That is, it is possible to distinguish the carrier wave with identical time and same frequency on territory, the elevation angle.Such as, reference signalBag
Containing the elevation information corresponding with elevation angle subrange l.
In step 350 place, it is possible to use multiple CSI-RS processes send by vertical weighted value obtain weighted
Reference signalCSI-RS process can be defined by LTE Rel 11, certainly sending out along with consensus standard
Exhibition can also use the CSI-RS port newly defined for FD-MIMO to send weighted reference signal.For LTE
Rel10 and in the past version, multiple CSI-RS processes are not supported, then can be by alternately sending difference at different time-gap
CSI-RS after weights weighting reaches same purpose.
In step 360 place, the feedback of the reception reference signal corresponding to being sent.Described feedback can be by each
The UE receiving reference signal feeds back to eNB's.Each can be measured corresponding to L the elevation angle (or height) with UE
The RSRP of wave beam, then RSRP is reported to eNB.The feedback received in step 360 place can be RSRP
Report, it is also possible to be CQI.
In step 370 place, distribute SRS for UE.Step 370 can include determining that elevation angle model corresponding for each UE
Enclose.(that is, elevation information or height can be comprised in the vertical RSRP report that eNB receives from all I UE
The RSRP report of degree information) after, determine the elevation angle corresponding to each UE.RSRP includes usingRepresent, its
Middle l=1 ..., L；I=1 ..., I.ENB can determine how based on these reports and strengthen SRS capacity with territory, the elevation angle.
When eNB uses these to report when, need the up-link power control for SRS transmission according to each UE
System, revises
For example, when having divided 4 elevation angle subranges (that is, L=4), if the target that eNB is serviced
UE number is 5 (that is, I=5), and the feedback received is as shown in table 1, it can be seen that UE1 is at elevation angle subrange 1
Upper signal intensity is the strongest, and UE1 signal intensity on elevation angle subrange 1 is being faced upward apparently higher than other subrange, UE2
Signal intensity in silver coin scope 3 is apparently higher than other subrange, and UE3 signal intensity on elevation angle subrange 1 is bright
Aobvious higher than other subrange, UE4 signal intensity on elevation angle subrange 2 and 3 is apparently higher than other subrange, UE5
Signal intensity on elevation angle subrange 1 and 3 is apparently higher than other subrange.Thus it was determined that UE1 correspondence is faced upward
Silver coin scope 1, UE2 correspondence elevation angle subrange 3, UE3 correspondence elevation angle subrange 1, UE4 correspondence elevation angle subrange 2
With 3, UE5 correspondence elevation angle subrange 1 and 3.
| L=1 | L=2 | L=3 | L=4 | |
| I=1 | 0dB | -15dB | -17dB | -20dB |
| I=2 | -16dB | -19dB | -3dB | -15dB |
| I=3 | -2dB | -17dB | -3dB | -15dB |
| I=4 | -16dB | -1dB | -4dB | -13dB |
| I=5 | -3dB | -10dB | -5dB | -12dB |
Table 1
Fig. 4 illustrates a kind of possible position relationship determined by the feedback in table 1 between UE and eNB.Wherein,
E axle represents height, and X-axis represents have mutually level position with eNB.
Step 370 can also include being grouped target UE.Can be with setRepresent UEiFace upward
Angle mould formula (or height mode).Specifically, if the elevation angle pattern of two UE has obvious difference, then may be used
The two UE is distinguished in angle domain.Further, in the elevation angle pattern of each UE compared with other value, poor
Different the most significantly it is worth, is determined for the angle of departure of described UE, such that it is able to eliminate between UE and angle not
Definitiveness.Therefore following technical problem can be solved: different UE depend on UE's self on territory, the elevation angle accordingly
Physical location and communication environments, therefore UE not necessarily can be separated；Even if can separate, UE and angle
Between corresponding relation be also uncertain.For example, if it is determined that the elevation angle corresponding to UE1 exists and is different from
The elevation angle of UE2, then can distinguish this UE1 with UE2, i.e. can be divided by UE1 with UE2 on territory, the elevation angle
In identical packet.
In short, the problem of the SRS distribution in territory, the elevation angle can represent by form with following again:
Determine that UE packet (assuming that the number being grouped is K) is so that being grouped G for eachk, all there is a son
Collectioni∈Gk, it meets following condition:
Condition 1: All exist
Condition 1: All exist
Those skilled in the art it is known that, additionally it is possible to obtain the packet of UE according to alternate manner, and according to other side
The packet that formula obtains all can be used to realize the goal of the invention of the present invention.A kind of feasible mode is: first according to condition
In 1 elevation angle pattern obtaining each UE, the value difference with other is not the most significantly worth, and then determines most preferably according to condition 2
UE packet.
For example, first eNB may determine that UE pair in angle domain, so that UE is grouped, and wherein UE
The UE of centering can be distinguished from each other open in angle domain.The number of UE pair depend on the detected UE of needs (or
Need UE to be serviced) the initial probe reference signal orthogonal resource of number and this community, place, base station, i.e. tradition SRS
Difference between orthogonal resource.Then, in each group of UE, can transmit and there is identical time, frequency and code division
The identical SRS of resource.
For the embodiment corresponding to table 1, UE1 and UE2 can be assigned in identical packet, by UE3 and
UE4 assigns in identical packet, and UE5 is then individually for a packet.
For the UE in same packet, can be that it distributes the channel with identical time and frequency.Additionally, it is each
The number of the UE in packet is the most specific to be limited, and same packet can comprise two or more UE.
Fig. 5 (a) and Fig. 5 (b) is to divide according to traditional approach and SRS according to an embodiment of the invention respectively
Join schematic diagram.Wherein real envelope represents the first frequency domain comb, and empty envelope represents the second frequency domain comb, and i.e. both are not
Same frequency divided resource；And the different hacures that envelope surrounds represent and employ different cyclic shifts on corresponding subcarrier,
The most different code division resources.
From Fig. 5 (a) it can be seen that for traditional SRS method of salary distribution, a code division resource can only carry one
The business of UE, concrete on the first frequency domain comb, the business of the first code division resource bearing UE1, the second code division resource
The business of carrying UE2, the rest may be inferred.And as shown in Fig. 5 (b), according to the SRS method of salary distribution of the present invention, one
Individual code division resource can carry the business of two or more UE, and such as on the first frequency domain comb, the first code division resource can be simultaneously
The business of carrying UE1, UE2.SRS is allocated by the method proposed according to the present invention, can not change channel
While time, frequency and code division resource, strengthen the capacity of SRS significantly.
Fig. 6 is the structural representation of communication system 60 according to an embodiment of the invention, and it comprises base station 600
And subscriber equipment 602.
Base station 600 includes angle composer 610, weighting processor 612, emitter 640, receptor 650 and SRS
Allotter 660.Weighting processor 612 can also include weight calculator 620 and multiplier 630.Wherein, angle structure
Building device 610 to may be used for performing the step 310 and 320 in method flow 300, weight calculator 620 may be used for
Performing the step 330 in method flow 300, multiplier 630 may be used for performing the step 340 in method flow 300,
Transmitter 640 may be used for the step 350 in execution method flow 300, receptor 650 may be used for execution method
Step 360 in flow process 300, SRS allotter 660 may be used for performing the step 370 in method flow 300.
Angle composer 610 can obtain the elevation angle corresponding to target UE from SRS allotter 660 further, with dynamic
State ground adjusts maximum elevation scope, and the division of elevation coverage.
Combine each illustrative logical, logical block, module and circuit hard that aspects disclosed herein describes for implementing
Part can use general processor, digital signal processor (DSP), special IC (ASIC), field programmable gate array
Or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or be designed to hold (FPGA)
Its any combination of row functions described herein is practiced or carried out.Angle composer, SRS allotter etc. can be
Any conventional processors, controller, microcontroller or state machine.Each module and circuit also can be embodied as calculating device
Combination, such as, DSP and the combination of microprocessor, the combination of multi-microprocessor, one or more micro-process
Device is combined with DSP core, or any other this configuration.Or, some steps or method can give by being specifically used for
The circuit of function performs.
There is provided the above description to disclosed aspect so that any technical staff of art can manufacture or use this
Invention.To those of ordinary skill in the art, it is readily apparent to the various amendments in terms of these, and is not taking off
In the case of the scope of the present invention, General Principle defined herein as can be applicable to other side.Therefore, the present invention
It is not intended to be limited to aspect shown herein, but should be endowed and principle disclosed herein and novel feature
Consistent widest range.
Claims (20)
1. a method, is used for strengthening detection reference signal capacity in multi-input multi-output system, and described method includes:
Base station selects multiple elevations angle according to the maximum elevation scope of antenna；
Downlink reference signal is weighted respectively processing to obtain by described base station based on the plurality of elevation angle
Multiple weighted reference signals；
Described base station sends the plurality of weighted reference signal to subscriber equipment；
Described base station receives from described subscriber equipment and corresponds respectively to each in the plurality of weighted reference signal
Multiple feedbacks；And
Described base station carries out the detection reference signal distribution of described subscriber equipment based on the plurality of feedback.
Method the most according to claim 1, wherein said base station selects multiple elevations angle to enter one according to maximum elevation scope
Step comprises the cell characteristic according to described base station and determines described maximum elevation scope, described maximum elevation scope is divided
For L the elevation angle, L is integer.
Method the most according to claim 2, is wherein divided into L the elevation angle to wrap further described maximum elevation scope
Include and described maximum elevation scope is equally divided into L subrange, then calculate maximum elevation in each subrange
Angle value.
Method the most according to claim 1, wherein said base station will by channel condition information-reference signal process
Multiple weighting detection reference signals send to described subscriber equipment.
Method the most according to claim 1, wherein multiple corresponding in the plurality of weighted reference signal each
Feedback is Reference Signal Received Power or channel quality instruction.
Method the most according to claim 1, wherein said multi-input multi-output system is full dimension multiple-input and multiple-output
System.
Method the most according to claim 1, wherein said base station carries out described subscriber equipment based on the plurality of feedback
Detection reference signal distribution comprise further described subscriber equipment matched with by described use in angle domain
Family device packets, is wherein separable with the subscriber equipment in group in angle domain.
Method the most according to claim 7, takies identical time, frequency and the detection of code division resource in the most each group
Signal resource can transmit in this group.
Method the most according to claim 7, wherein match subscriber equipment number by need detection user device quantity
And the initial probe reference signal orthogonal resource of this community, place, base station determines.
10., according to the method described in claim 1, wherein said weighting processes wavelength and the same column being based further on described antenna
Distance between middle adjacent antenna.
11. 1 kinds of base stations, including:
Angle composer, it is configured to the maximum elevation scope according to antenna and selects multiple elevations angle；
Weighting processor, it is configured to carry out downlink reference signal respectively based on the plurality of elevation angle
Weighting processes to obtain multiple weighted reference signals；
Emitter, it is configured to send the plurality of weighted reference signal to subscriber equipment；
Receptor, it is configured to receive from described subscriber equipment correspond respectively to the plurality of weighted reference letter
Multiple feedbacks of each in number；And
Detection reference signal allotter, it is configured to carry out described subscriber equipment based on the plurality of feedback
Detection reference signal distributes.
12. base stations according to claim 11, wherein said angle composer is configured to further according to described base
The cell characteristic stood determines described maximum elevation scope, and described maximum elevation scope is divided into L the elevation angle, and L is
Integer.
13. base stations according to claim 12, described angle composer is configured to further by described maximum elevation
Scope is equally divided into L the elevation angle.
14. base stations according to claim 11, wherein said emitter is configured to channel status letter further
Multiple weighting detection reference signals are sent to described subscriber equipment by breath-reference signal process.
15. base stations according to claim 11, wherein many corresponding to each in the plurality of weighted reference signal
Individual feedback is Reference Signal Received Power or channel quality instruction.
16. base stations according to claim 11, wherein said multi-input multi-output system is that how defeated full dimension multi input is
Go out system.
17. base stations according to claim 11, it is right that wherein said detection reference signal allotter is configured to further
Described subscriber equipment carries out matching to be grouped described subscriber equipment, wherein with the subscriber equipment in group in angle domain
It is separable in angle domain.
18. base stations according to claim 17, take identical time, frequency and the spy of code division resource in the most each group
Survey signal resource to transmit in this group.
19. base stations according to claim 17, wherein match subscriber equipment number by need detection subscriber equipment
The initial probe reference signal orthogonal resource of number and this community, place, base station determines.
20. according to the base station described in claim 11, wherein said weighting process be based further on described antenna wavelength and with
Distance between adjacent antenna in row.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108934019A (en) * | 2017-05-25 | 2018-12-04 | 维沃移动通信有限公司 | A kind of beam information report method, base station and terminal |
| WO2020098501A1 (en) * | 2018-11-16 | 2020-05-22 | 华为技术有限公司 | Method and device for interference coordination of sounding reference signal (srs) |
| CN111226351A (en) * | 2017-10-27 | 2020-06-02 | 华为技术有限公司 | Broadcast beam domain adjusting method and device |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101741446A (en) * | 2008-11-14 | 2010-06-16 | 中兴通讯股份有限公司 | Multiple-input multiple-output method and device |
| US20130230081A1 (en) * | 2012-03-02 | 2013-09-05 | Telefonaktiebolaget Lm Ericsson (Publ) | Radio Base Station and Method Therein for Transforming a Data Transmission Signal |
| US20130315083A1 (en) * | 2012-05-25 | 2013-11-28 | Samsung Electronics Co., Ltd | Method and apparatus for transmitting and receiving reference signal in mobile communication system using beamforming |
| CN103546264A (en) * | 2013-11-13 | 2014-01-29 | 东南大学 | Large-scale MIMO wireless communication method based on pilot frequency multiplex |
| CN103780347A (en) * | 2014-01-23 | 2014-05-07 | 东南大学 | Method for multi-user dispatching transmission based on 3D-MIMO codebook design |
| WO2014109622A1 (en) * | 2013-01-14 | 2014-07-17 | 엘지전자 주식회사 | Method for reporting channel state information for three-dimensional beamforming in wireless communication system and device therefor |
| CN103957041A (en) * | 2014-03-18 | 2014-07-30 | 东南大学 | 3D wave beam shaping method for large-scale MIMO TDD system |
| WO2014133280A1 (en) * | 2013-02-28 | 2014-09-04 | Samsung Electronics Co., Ltd. | Method and apparatus for transmitting and receiving feedback information in mobile communication system using multiple antennas |
| WO2014190903A1 (en) * | 2013-05-31 | 2014-12-04 | Qualcomm Incorporated | Linear precoding in full-dimensional mimo systems and dynamic vertical sectorization |
| CN104270820A (en) * | 2014-08-04 | 2015-01-07 | 西安交通大学 | Combined vertical beam control and power allocation method in 3D large-scale MIMO system |
| CN104350689A (en) * | 2012-07-02 | 2015-02-11 | 英特尔公司 | Supporting measurments and feedback for 3d mimo with data transmission optimization |
-
2015
- 2015-03-20 CN CN201510125238.1A patent/CN106033987B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101741446A (en) * | 2008-11-14 | 2010-06-16 | 中兴通讯股份有限公司 | Multiple-input multiple-output method and device |
| US20130230081A1 (en) * | 2012-03-02 | 2013-09-05 | Telefonaktiebolaget Lm Ericsson (Publ) | Radio Base Station and Method Therein for Transforming a Data Transmission Signal |
| US20130315083A1 (en) * | 2012-05-25 | 2013-11-28 | Samsung Electronics Co., Ltd | Method and apparatus for transmitting and receiving reference signal in mobile communication system using beamforming |
| CN104350689A (en) * | 2012-07-02 | 2015-02-11 | 英特尔公司 | Supporting measurments and feedback for 3d mimo with data transmission optimization |
| WO2014109622A1 (en) * | 2013-01-14 | 2014-07-17 | 엘지전자 주식회사 | Method for reporting channel state information for three-dimensional beamforming in wireless communication system and device therefor |
| WO2014133280A1 (en) * | 2013-02-28 | 2014-09-04 | Samsung Electronics Co., Ltd. | Method and apparatus for transmitting and receiving feedback information in mobile communication system using multiple antennas |
| WO2014190903A1 (en) * | 2013-05-31 | 2014-12-04 | Qualcomm Incorporated | Linear precoding in full-dimensional mimo systems and dynamic vertical sectorization |
| CN103546264A (en) * | 2013-11-13 | 2014-01-29 | 东南大学 | Large-scale MIMO wireless communication method based on pilot frequency multiplex |
| CN103780347A (en) * | 2014-01-23 | 2014-05-07 | 东南大学 | Method for multi-user dispatching transmission based on 3D-MIMO codebook design |
| CN103957041A (en) * | 2014-03-18 | 2014-07-30 | 东南大学 | 3D wave beam shaping method for large-scale MIMO TDD system |
| CN104270820A (en) * | 2014-08-04 | 2015-01-07 | 西安交通大学 | Combined vertical beam control and power allocation method in 3D large-scale MIMO system |
Non-Patent Citations (1)
| Title |
|---|
| QUALCOMM INCORPORATED: "Elevation Beamforming and FD-MIMO with 2D Antenna Array", 《3GPP TSG RAN WG1 #79 R1-145087》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108934019A (en) * | 2017-05-25 | 2018-12-04 | 维沃移动通信有限公司 | A kind of beam information report method, base station and terminal |
| CN111226351A (en) * | 2017-10-27 | 2020-06-02 | 华为技术有限公司 | Broadcast beam domain adjusting method and device |
| US11432165B2 (en) | 2017-10-27 | 2022-08-30 | Huawei Technologies Co., Ltd. | Method and apparatus for adjusting broadcast beam domain |
| WO2020098501A1 (en) * | 2018-11-16 | 2020-05-22 | 华为技术有限公司 | Method and device for interference coordination of sounding reference signal (srs) |
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