CN103797837B - A kind of method, base station and user equipment for improving channel measurement accuracy - Google Patents
A kind of method, base station and user equipment for improving channel measurement accuracy Download PDFInfo
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Abstract
The embodiment of the present invention provides a kind of method, base station and user equipment for improving channel measurement accuracy, applied to the communications field, solves the problems, such as that channel measurement in the prior art is inaccurate.The method for improving channel measurement accuracy, for matching the channel measurement of user equipment (UE), the pairing UE includes the first UE and the 2nd UE, and this method includes：Base station generates configuration information, and the configuration information indicates that the first UE carries out the running time-frequency resource where interferometry；The configuration information is sent to the first UE；On the running time-frequency resource of configuration information instruction, data are sent to the 2nd UE.The embodiment of the present invention is applied to have in the communication system of base station.
Description
Technical field
The present invention relates to communication fields more particularly to a kind of method, base station and user for improving channel measurement accuracy to set
It is standby.
Background technology
With the increase of cell business volume, in the case where not increasing site, the networking mode of more sectors is small as being promoted
Area covers and a kind of scheme of capacity, for example, in Long Term Evolution（Long Term Evolution, LTE）Three in communication system
Sector networking mode.But as sector number is promoted, user equipment（User Equipment, UE）It needs continually in minizone
Switching so as to influence user experience, causes call drop, transmission rate decline etc., in order to solve this problem, introduces virtual sectors
Concept.
Due to active antenna system（Active Antenna System, AAS）Some ripples being differently directed can be formed
Beam, so as to which multiple virtual sectors, each wave cover one can be marked off according to different wave beams in same physical sector
A virtual sectors, the UE belonged in different virtual sectors can be multiplexed same running time-frequency resource, in virtual sectors intersection
UE can be combined by multiple wave beams and send, effective multiplexed resource lifting system capacity reduce the dry of sector intersection user
It disturbs, while frequent switching problem caused by also avoiding sectorization.
The UE that multiplexing same running time-frequency resource carries out data transmission is called pairing UE, and matches UE in data transmission procedure
Since multiplexing same running time-frequency resource carries out data transmission, interference can be generated each other, but current channel measuring method does not have
Influence of the interference to measurement between reflection pairing UE, causes channel measurement to be not allowed.
The content of the invention
The embodiment of the present invention provides a kind of method, base station and user equipment for improving channel measurement accuracy, for solving
The problem of channel measurement certainly in the prior art is inaccurate.
In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that：
In a first aspect, the embodiment of the present invention provides a kind of method for improving channel measurement accuracy, set for matching user
The channel measurement of standby UE, the pairing UE include the first UE and the 2nd UE, including：
Base station generates configuration information, and the configuration information indicates that the first UE carries out the time-frequency money where interferometry
Source；
The configuration information is sent to the first UE；
On the running time-frequency resource of configuration information instruction, data are sent to the 2nd UE.
With reference to first aspect, in the first possible realization method of first aspect, the of configuration information instruction
Running time-frequency resource where one UE carries out interferometry is the first running time-frequency resource being sent to shared by the pilot tone of the first UE, and
After the first UE sends configuration information, the method further includes for the base station：
On first running time-frequency resource, pilot tone is sent to the first terminal.
With reference to first aspect, in second of possible realization method of first aspect, the of configuration information instruction
Second running time-frequency resource of the running time-frequency resource where interference management resource IMR where one UE progress interferometries, and the configuration
Information also indicates the first running time-frequency resource shared by the pilot tone for being sent to the first UE, and matches somebody with somebody in the base station to the first UE transmissions
After confidence breath, the method further includes：
On first running time-frequency resource, pilot tone is sent to the first UE.
Second of possible realization method with reference to first aspect, in the third possible realization method of first aspect
In, first running time-frequency resource is not used in the data for sending the 2nd UE.
With reference to first aspect or first aspect the first into the third possible realization method any one realization side
Formula, in the 4th kind of possible realization method of first aspect, the base station generates configuration information, including：
The base station determines the position of the first UE, the position of the first UE include virtual sectors inside or
The intersection of partial virtual sector in the corresponding all virtual sectors in base station described in person；
According to the position of the first UE, the configuration information is generated.
With reference to first aspect or the first possible realization method of first aspect is into the 4th kind of possible realization method
Any one realization method, in the 5th kind of possible realization method of first aspect, the pilot tone be channel state information
Reference signal CSI-RS.
Second aspect, a kind of method for improving channel measurement accuracy, including：
First user equipment (UE) receives the configuration information that base station is sent, and the configuration information indicates that the first UE is done
The running time-frequency resource where measurement is disturbed, and the running time-frequency resource is additionally operable to send the data of the 2nd UE；Wherein described first UE and described
2nd UE composition pairings UE；
First UE carries out interferometry on the running time-frequency resource indicated by the configuration information.
With reference to second aspect, in the first possible realization method of second aspect,
Running time-frequency resource where first UE of the configuration information instruction carries out interferometry is to be sent to the first UE
Pilot tone shared by the first running time-frequency resource, and, the first UE is done on the running time-frequency resource indicated by the configuration information
Measurement is disturbed, including：
First UE carries out channel measurement on first running time-frequency resource to the pilot tone that the base station is sent, and is wrapped
Include the channel measurement of the 2nd UE interference.
With reference to second aspect, in second of possible realization method of second aspect, the of the configuration information instruction
Running time-frequency resource where one UE carries out interferometry is the first running time-frequency resource being sent to shared by the pilot tone of the first UE, and,
First UE carries out interferometry on the running time-frequency resource indicated by the configuration information, including：
First UE carries out channel measurement on first running time-frequency resource to the pilot tone that the base station is sent, and is wrapped
Include the channel measurement of the 2nd UE interference.
With reference to second of possible realization method of second aspect, in the third possible realization method of second aspect
In, the running time-frequency resource where the first UE progress interferometries of the configuration information instruction is where interference management resource IMR
Second running time-frequency resource, and the configuration information also indicates the first running time-frequency resource shared by the pilot tone for being sent to the first UE, and,
The method further includes：
First UE carries out signal measurement on first running time-frequency resource to the pilot tone that the base station is sent；
According to the interferometry and signal measurement as a result, obtaining including the channel measurement knot that the 2nd UE disturbs
Fruit.
The third aspect provides a kind of base station, described to match somebody with somebody for improving the accuracy of the channel measurement of pairing user equipment (UE)
First UE and the 2nd UE is included to UE, including：
Generation unit, for generating configuration information, the configuration information indicates that the first UE carries out interferometry place
Running time-frequency resource；
Transmitting element, for sending information to the pairing UE；
Control unit, for controlling the transmitting element to the first UE transmissions generation unit generation with confidence
Breath, and control on the running time-frequency resource that the transmitting element indicate in the configuration information, to the 2nd UE transmission data.
With reference to the third aspect, in the first possible realization method of the third aspect, the of the configuration information instruction
Running time-frequency resource where one UE carries out interferometry is the first running time-frequency resource being sent to shared by the pilot tone of the first UE, and institute
It states control unit to be additionally operable in the transmitting element after the first UE sends configuration information, the transmitting element is controlled to exist
On first running time-frequency resource, pilot tone is sent to the first UE.
With reference to the third aspect, in second of possible realization method of the third aspect, the of the configuration information instruction
Second running time-frequency resource of the running time-frequency resource where interference management resource IMR where one UE progress interferometries, and the configuration
Information also indicates the first running time-frequency resource shared by the pilot tone for being sent to the first UE, and described control unit is additionally operable to described
Transmitting element controls the transmitting element on first running time-frequency resource after the first UE sends configuration information, to
First UE sends pilot tone.
With reference to second of possible realization method of the third aspect, in the third possible realization method of the third aspect
In, described control unit is additionally operable to that first running time-frequency resource is controlled to be not used in the data for sending the 2nd UE.
With reference to the possible realization method of the first of the third aspect or the third aspect into the third possible realization method
Any one realization method, in the 4th kind of possible realization method of the third aspect, the base station further includes：
Position determination unit, for determining the position of the first UE, the position of the first UE includes a virtual fan
The intersection of partial virtual sector in the corresponding all virtual sectors in the inside in area or the base station；
The generation unit for the position according to the first UE, generates the configuration information.
With reference to the possible realization method of the first of the third aspect or the third aspect into the 4th kind of possible realization method
Any one realization method, in the 5th kind of possible realization method of the third aspect, the pilot tone is joined for channel state information
Examine signal CSI-RS.
Fourth aspect provides a kind of user equipment, including：
Receiving unit, for receiving the configuration information of base station transmission, the configuration information instruction is as the first user equipment
The user equipment of UE carries out the running time-frequency resource where interferometry, and the running time-frequency resource is additionally operable to send the number of the 2nd UE
According to；Wherein described first UE and the 2nd UE composition pairings UE；
Interferometry unit, for carrying out interferometry on the running time-frequency resource that is indicated in the configuration information.
With reference to fourth aspect, in the first possible realization method of fourth aspect, the of the configuration information instruction
Running time-frequency resource where one UE carries out interferometry is the first running time-frequency resource being sent to shared by the pilot tone of the first UE, and institute
Interferometry unit is stated, is specifically used for：Channel measurement is carried out to the pilot tone that the base station is sent on first running time-frequency resource,
Obtain the channel measurement for including the 2nd UE interference.
With reference to fourth aspect, in second of possible realization method of fourth aspect, the of the configuration information instruction
Second running time-frequency resource of the running time-frequency resource where interference management resource IMR where one UE progress interferometries, and the configuration
Information also indicates the first running time-frequency resource shared by the pilot tone for being sent to the first UE, and, the base station further includes：
Signal measurement unit, for carrying out signal survey to the pilot tone that the base station is sent on first running time-frequency resource
Amount；
Measurement result acquiring unit, for the interferometry according to the interferometry unit and the signal measurement unit
It is signal measurement as a result, obtaining including the channel measurement of the 2nd UE interference.
A kind of method, base station and user equipment for improving channel measurement accuracy provided in an embodiment of the present invention, for matching somebody with somebody
To the channel measurement of user equipment (UE), the pairing UE includes the first UE and the 2nd UE, base station generation configuration information and to first
UE sends configuration information, and the configuration information indicates that the first UE carries out the running time-frequency resource where interferometry；Base station is in institute
On the running time-frequency resource for stating configuration information instruction, to the 2nd UE transmission data, on the running time-frequency resource that the first UE is indicated in configuration information
Carry out interferometry.Compared with prior art, due to consideration that in data transmission procedure the 2nd UE and the first UE multiplexing it is same
Interference caused by block running time-frequency resource to the first UE so that the interference measurement results of the first UE are more accurate.
Description of the drawings
Fig. 1 is a kind of flow chart of method for improving channel measurement accuracy provided in an embodiment of the present invention；
Fig. 2 is the flow chart of the method for the raising channel measurement accuracy that another embodiment of the present invention provides；
Fig. 3 is the signaling diagram of the method for the raising channel measurement accuracy that further embodiment of this invention provides；
Fig. 4 is the signaling diagram of the method for the raising channel measurement accuracy that further embodiment of this invention provides；
Fig. 5 is a kind of structure diagram one of base station provided in an embodiment of the present invention；
Fig. 6 is a kind of structure diagram two of base station provided in an embodiment of the present invention；
Fig. 7 is a kind of structure diagram one of user equipment provided in an embodiment of the present invention；
Fig. 8 is a kind of result schematic diagram two of user equipment provided in an embodiment of the present invention；
Fig. 9 is a kind of structure diagram for base station that further embodiment of this invention provides；
Figure 10 is a kind of structure diagram for user equipment that further embodiment of this invention provides.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment belongs to the scope of protection of the invention.
First, the concept of the pilot tone to needing to use in following embodiment is described.
Running time-frequency resource, also referred to as resource element（Resource Element, RE）.In LTE communication system, on frequency domain
A subcarrier and time domain on a symbol（symbol）Form a RE.
Pilot tone, and pilot signal or reference signal can be referred to as（Reference Signal, RS）, it is by transmitting terminal
（Base station）It is supplied to receiving terminal（UE）For channel measurement（Or referred to as channel estimation）A kind of signal.At present, it is common to lead
Frequency mainly includes following three kinds：
Cell special reference（Cell-specific reference signal, CRS）：It is also referred to as public to lead
Frequently, all users in cell are issued in a broadcast manner at present.CRS's has many uses, the channel estimation including control channel
Demodulation, some transmission modes（Such as TM4）Under measurement and demodulation etc.；
The proprietary pilot tones of UE（UE-specific RS）：For some transmission modes（Such as TM8, TM9）Under data demodulation；
Channel state information reference signals（CSI-RS）：For channel state information（Channel State
Information, CSI）Measurement, abbreviation channel measurement.
At present, in the scheme of virtual sectors, channel measurement is carried out based on CRS.And CRS can only use the side of broadcast
Formula is sent（I.e. all wave beams are sent jointly）, without resource multiplex, and it is that partial wave beam is sent to send data.In this case,
UE in different virtual sectors is when being multiplexed same running time-frequency resource, due to not accounting for pairing UE during measurement（I.e. multiplexing is same
The UE of one piece of running time-frequency resource）Between interference, signal when causing the measurement result to be unable to accurate response data receiver and interference plus make an uproar
Acoustic ratio（Signal to Interference plus Noise Ratio, SINR）Level and beam feature etc., serious shadow
The performance of virtual sectors is rung.
For this purpose, in the examples below, when base station configures the running time-frequency resource of pilot tone for pairing UE, can coordinate between them
Running time-frequency resource so that the running time-frequency resource shared by pilot tone staggers, and on the position for disturbing corresponding running time-frequency resource in measurement, sends number
According to so as to introduce the interference between pairing UE in measurement, improving the accuracy of channel measurement.
It should be noted that pairing UE can also include two or more UE, realizations is upper similar, i.e. times in pairing UE
What UE can serve as measurement UE, and on the position of the running time-frequency resource of measurement UE measurement interference, base station sends for other UE
Data so as to introduce the interference between pairing UE in measurement, improve the accuracy of channel measurement.For this purpose, for the ease of
Understand, in following embodiment, illustrated exemplified by matching UE and including the first UE and the 2nd UE, wherein, the first UE and the 2nd UE
Measurement UE is can serve as, here, by taking the first UE is measurement UE as an example, is described, certainly, the 2nd UE can also be used as measurement
UE, scheme is realized is used as measurement UE similar with the first UE, is only one and simply exchanges, this will not be detailed here.
With reference to figure 1, an embodiment of the present invention provides a kind of methods for improving channel measurement accuracy, are related to base station one side,
This method includes：
101st, base station generation configuration information, the configuration information indicate that the first UE carries out the running time-frequency resource where interferometry；
102nd, base station sends the configuration information of above generation to the first UE.
103rd, on the running time-frequency resource that base station is indicated in configuration information, data are sent to the 2nd UE.
Data are sent to the 2nd UE on running time-frequency resource where the progress interferometry that base station is indicated in configuration information, thus
First UE can measure the 2nd UE to first when channel measurement is carried out on the running time-frequency resource where the interferometry
The interference of UE.
In addition, as shown in Fig. 2, the embodiment of the present invention also provide it is a kind of improve channel measurement accuracy method, be related to UE
One side, including：
201st, the first UE receives the configuration information that base station is sent, and the configuration information indicates that the first UE carries out interference survey
Running time-frequency resource where measuring.
It is pointed out that the running time-frequency resource where the first UE carries out interferometry is additionally operable to what carrying was sent to the 2nd UE
Data.
202nd, the first UE carries out interferometry on the running time-frequency resource indicated by the configuration information.
On running time-frequency resource where the progress interferometry indicated due to base station in configuration information also number is sent to the 2nd UE
According to, thus the first UE can measure second when channel measurement is carried out on the running time-frequency resource where the interferometry
Interference of the UE to the first UE.
A kind of method for improving channel measurement accuracy provided in an embodiment of the present invention, for matching the channel measurement of UE,
The pairing UE includes the first UE and the 2nd UE, and base station sends configuration information to the first UE, configuration information instruction described the
One UE carries out the running time-frequency resource where interferometry；On the running time-frequency resource that base station is indicated in the configuration information, sent out to the 2nd UE
Data are sent, interferometry is carried out on the running time-frequency resource that the first UE is indicated in configuration information.Compared with prior art, due to consideration that
Interference in data transmission procedure caused by the 2nd UE and the first UE multiplexings same running time-frequency resource to the first UE so that the
The interference measurement results of one UE are more accurate.
The method of above-mentioned raising channel measurement accuracy is described in detail by taking specific embodiment as an example below.
On the one hand, as shown in figure 3, an embodiment of the present invention provides it is a kind of improve channel measurement accuracy method, including：
301st, base station sends configuration information to the first UE, and the configuration information instruction is sent to shared by the pilot tone of the first UE
First running time-frequency resource；
302nd, on first running time-frequency resource, pilot tone is sent to the first UE；And on first running time-frequency resource, to
2nd UE sends data.
Wherein, the first UE and the 2nd UE multiplexings same running time-frequency resource, i.e. the first UE and the 2nd UE are pairing UE.
303rd, the first UE carries out channel measurement on the first running time-frequency resource to the pilot tone that base station is sent, and obtains including the 2nd UE
The channel measurement of interference.
304th, the channel measurement that the first UE is sent to base station.
Pilot tone described in embodiment shown in Fig. 3 can be specifically CSI-RS.
A kind of method for improving channel measurement accuracy provided in an embodiment of the present invention, for matching the channel measurement of UE,
Base station sends configuration information to the first UE, and the first time-frequency that instruction is sent to shared by the pilot tone of the first UE in the configuration information provides
Source, and pilot tone is sent out to the first UE on the first running time-frequency resource, send out data to the 2nd UE；First UE is on the first running time-frequency resource to leading
Frequency carries out channel measurement, since pilot tone is sent out in base station by the first running time-frequency resource to the first UE and sends out data to the 2nd UE again,
First UE, which carries out channel measurement, can obtain the channel measurement for including the 2nd UE interference.Compared with prior art, due to
The interference caused by same running time-frequency resource to the first UE is multiplexed in view of the 2nd UE in data transmission procedure and the first UE,
So that the interference measurement results of the first UE are more accurate.
It should be noted that since the first UE and the 2nd UE is pairing UE, it is located at different positions, such as positioned at not
With virtual sectors in or one be located at multiple virtual sectors intersection, another is located in virtual sectors；Or it is located at
Different virtual sectors intersections.Therefore, on first running time-frequency resource, base station sends pilot tone and to the 2nd UE to the first UE
It is different to send the wave beam that data are utilized.For example, base station is led on the first running time-frequency resource, using the first wave beam to the first UE transmissions
Frequently；On first running time-frequency resource, data are sent to the 2nd UE using the second wave beam.
First wave beam can be one or multiple.If for example, the first UE is in multiple virtual sectors
Intersection then sends pilot tone using the corresponding multiple wave beams in these virtual sectors；If the first UE is located at virtual sectors
Inside then sends pilot tone using the corresponding wave beam in this virtual sectors.
Second wave beam can be one or multiple.If for example, the 2nd UE is in multiple virtual sectors
Intersection then sends data to the 2nd UE using the corresponding multiple wave beams in these virtual sectors；If the 2nd UE is located at a void
Intend the inside of sector, then send data to the 2nd UE using the corresponding wave beam in this virtual sectors.Certainly, the 2nd UE can be more
It is a, belong to different virtual sectors, the first UE is interfered jointly.
Further, base station is when generating configuration information, it may be considered that the position of the first UE, to be directed to the UE of different position
Different configuration informations is generated, therefore the process of base station generation configuration information includes：
S1, base station determine the position of the first UE.
The position of first UE can include a variety of possible situations, for example inside a virtual sectors or be in
Intersection of partial virtual sector in the corresponding all virtual sectors in the base station etc..
S2, the position according to the first UE, determine configuration information.
Base station determines the position of the first UE, can specifically be realized by receiving the uplink response reception power of the first UE.
Specifically, the process of the position by taking three wave beams as an example to determining the first UE is described in detail：
If there are three wave beam in the physical sector of base station one, each wave beam corresponds to one virtual sectors of covering.Three wave beams
Number consecutively is wave beam A, wave beam B, wave beam C, and work(is received to uplink responses of the first UE in timing statistics section K on wave beam A
Rate is A1, and it is B1 that uplink responses of the first UE in timing statistics section K on wave beam B, which receives power, and the first UE is in timing statistics
It is C1 that uplink response in section K on wave beam C, which receives power, and it is Th1 to set predetermined threshold value.
Situation 1：If A1-B1>Th1, and B1-C1>Th1, then base station determine that the first UE is located at the area of coverage of the wave beam A
Domain；If A1-B1≤Th1, and C1-B1>Th1, then the first UE be located at the overlay area of the wave beam C；If A1-B1≤Th1, and
B1-C1>Th1, then the first UE overlay areas for being set forth in wave beam B.
Situation 2：If abs（A1-B1）≤ Th1 and abs（B1-C1）>Th1, then base station it is described to determine that the first UE is located at
The wave beam A's and wave beam B collectively covers region；If abs（B1-C1）≤ Th1 and abs（A1-B1）>Th1, then the first UE
Region is collectively covered positioned at the wave beam B and wave beam C；If abs（A1-C1）≤ Th1 and abs（B1-C1）>Th1, then institute
That states that the first UE is located at the wave beam A and wave beam C collectively covers region.
Situation 3：If abs（A1-B1）≤ Th1, and abs（B1-C1）≤ Th1, and abs（A1-C1）≤ Th1, then base station is true
Fixed first UE is located at wave beam A, wave beam B, the common junctional area of wave beam C.
It is the Sounding Reference Signal work(that the first UE that the base station receives is sent that the uplink response, which receives power,
Rate.
Situation 2 and situation 3 are both for the common junctional area of multiple wave beams, and difference lies in several ripples in the second situation
The common junctional area of the not all wave beam in common junctional area of beam；And the third situation is directed to the common friendship of all wave beams
Battery limit (BL).
It should be noted that when the first UE is in the common junctional area of all wave beams described in situation 3（I.e. all virtual fans
The common boundary in area）When, channel measurement can be carried out using the CRS of the prior art.Reason is that CRS is that all wave beams are common
It sends.
According to afore-mentioned 1 to the description of situation 3, the position where the first UE can be there are many situation.According to where it
The difference of position, base station are also differed to the first UE pilot tones sent.Assuming that pilot tone is specially CSI-RS, there are three virtual fans
Area is respectively virtual sectors 1, virtual sectors 2 and virtual sectors 3.Then the location of the first UE is up to 7 kinds of possibility：Virtually
Inside sector 1, inside virtual sectors 2, inside virtual sectors 3, the intersection of virtual sectors 1 and virtual sectors 2, virtual sectors 1
With the intersection of virtual sectors 3, the intersection of virtual sectors 2 and virtual sectors 3, the common intersection of virtual sectors 1,2 and 3.
As it was noted above, when the first UE is in the common junctional area of all wave beams（The common boundary of i.e. all virtual sectors）
When, channel measurement can be carried out using the CRS of the prior art, therefore other six kinds of situations are illustrated below.
If the first UE is in virtual sectors 1, the base station sends the CSI-RS of configuration 1 to the first UE；If
First UE is in virtual sectors 2, and the base station sends the CSI-RS of configuration 2 to the first UE；If the first UE is in virtual
In sector 3, the base station sends the CSI-RS of configuration 3 to the first UE.If the first UE is in virtual sectors 1 and virtual sectors 2
Intersection, the base station send the CSI-RS of configuration 4 to the first UE, and the CSI-RS of the configuration 4 is by 1 corresponding ripple of virtual sectors
Beam is sent with 2 corresponding wave beam of virtual sectors to the first UE jointly；If the first UE is in the friendship of virtual sectors 2 and virtual sectors 3
At boundary, the base station sends the CSI-RS of configuration 5 to the first UE, and the CSI-RS of the configuration 5 is by 2 corresponding wave beam of virtual sectors
It is sent jointly to the first UE with 3 corresponding wave beam of virtual sectors；If the first UE is in the boundary of virtual sectors 1 and virtual sectors 3
Place, the base station to the first UE send configuration 6 CSI-RS, it is described configuration 6 CSI-RS by 1 corresponding wave beam of virtual sectors with
3 corresponding wave beam of virtual sectors is sent jointly to the first UE.
In conclusion difference of the base station according to the first UE present positions, different configuration of CSI- is indicated to the first UE
RS, it is ensured that different configuration of CSI-RS occupies different running time-frequency resources.
On the other hand, as shown in figure 4, the embodiment of the present invention additionally provides another side for improving channel measurement accuracy
Method, including：
401st, base station sends configuration information to the first UE, and configuration information instruction is sent to first shared by the pilot tone of the first UE
Running time-frequency resource and the second running time-frequency resource where IMR.
Unlike embodiment shown in Fig. 3, when indicating two in the configuration information that base station is sent in step 401
Frequency resource：The first running time-frequency resource and interference management resource being sent to shared by the pilot tone of the first UE（IMR）Place second when
Frequency resource.
Pilot tone described in embodiment shown in Fig. 4 can be specifically CSI-RS.
Base station determines the position of the first UE before configuration information is sent to the first UE, and according to the location determination of the first UE
Configuration information.Base station determines the specific descriptions of the position of the first UE, may refer to previous cases of the embodiment of the present invention 1,2 and of situation
The description of situation 3, which is not described herein again.
Base station also differs the first UE of the different positions pilot tones for configuring and sending, and specific descriptions can refer to the present invention
Embodiment is above.
402nd, base station sends pilot tone on the first running time-frequency resource to the first UE.
It is pointed out that base station sends data not on the first running time-frequency resource to the 2nd UE.Specific implementation can be with
It is that base station sends zero through-put power CSI-RS on the first running time-frequency resource to the 2nd UE.Before zero through-put power CSI-RS is sent,
Base station indicates that the position of first running time-frequency resource is zero through-put power CSI-RS in the configuration information for being sent to the 2nd UE.Herein
In the case of, base station sends pilot tone on the first running time-frequency resource to the first UE, while not on the first running time-frequency resource to the 2nd UE
Data are sent, the first UE carries out signal measurement according to the pilot tone received.
For example, the first UE and the 2nd UE is pairing user.First UE is located in virtual sectors 1, and the 2nd UE is located at virtual fan
In area 2.The wave beam 1 of 1 respective base station of virtual sectors, the wave beam 2 of 2 respective base station of virtual sectors.Base station is by wave beam 1 to the first UE
CSI-RS is sent, but on identical running time-frequency resource, base station will not send data by wave beam 2 to the 2nd UE of virtual sectors 2,
I.e. virtual sectors 2 are silent（mute）.
403rd, the first UE carries out signal measurement on the first running time-frequency resource to the pilot tone that base station is sent.
404th, base station sends data on the second running time-frequency resource to the 2nd UE.
405th, the first UE carries out interferometry on the second running time-frequency resource.
Data are sent out in base station on the second running time-frequency resource to the 2nd UE, and the first UE receives configuration information, it is known that the place of IMR
Running time-frequency resource after, interferometry is carried out on the running time-frequency resource, which can reflect second running time-frequency resource of multiplexing
Interference of 2nd UE to the first UE.
406th, according to interferometry and signal measurement as a result, obtaining the channel measurement for including the 2nd UE interference.
407th, the channel measurement that the first UE is sent to base station.
A kind of method for improving channel measurement accuracy provided in an embodiment of the present invention, for matching the channel measurement of UE,
Base station sends configuration information to the first UE, and the first time-frequency that instruction is sent to shared by the pilot tone of the first UE in the configuration information provides
Source and the second running time-frequency resource where IMR, and pilot tone is sent out in base station on the first running time-frequency resource to the first UE, in the first time-frequency
Data are not sent out to the 2nd UE in resource, the first UE carries out channel measurement on the first running time-frequency resource to pilot tone.Base station is also second
Data are sent to the 2nd UE on running time-frequency resource, the first UE carries out interferometry on the second running time-frequency resource.Last first UE according to
Interferometry and signal measurement as a result, obtain the channel measurement for including the 2nd UE interference, feed back to base station.Due to base station
Data are sent out to the 2nd UE by the second running time-frequency resource, the first UE, which carries out interferometry, can obtain the disturbed condition of the 2nd UE.With
The prior art is compared, due to consideration that in data transmission procedure produced by the 2nd UE and the first UE multiplexings same running time-frequency resource
The interference to the first UE so that the interference measurement results of the first UE are more accurate.
With the above method correspondingly, as shown in figure 5, the embodiment of the present invention also provides a kind of base station, for matching UE
Channel measurement, it is described pairing UE include the first UE and the 2nd UE, which includes：Generation unit 51, control unit 52 are sent
Unit 53, wherein,
Generation unit 51, for generating configuration information, the configuration information is indicated where the first UE progress interferometries
Running time-frequency resource；
Transmitting element 53, for sending information to pairing UE；
Control unit 52 matches somebody with somebody confidence for triggering the transmitting element 53 to what the first UE transmission generation units 51 generated
Breath, and the configuration information generated according to generation unit 51, the running time-frequency resource that the transmitting element 53 is controlled to be indicated in configuration information
On, send data to the 2nd UE.
In a kind of specific implementation of the embodiment of the present invention, the first UE of the configuration information instruction carries out interference survey
Running time-frequency resource where amount is the first running time-frequency resource being sent to shared by the pilot tone of the first UE.In the case, the control
Unit 52 processed is additionally operable in the transmitting element 53 after the first UE sends configuration information, controls the transmitting element 53
On first running time-frequency resource, pilot tone is sent to the first UE.
In another specific implementation of the embodiment of the present invention, the first UE of the configuration information instruction is disturbed
Running time-frequency resource where measurement is the second running time-frequency resource where IMR, and the configuration information also indicates and is sent to described the
The first running time-frequency resource shared by the pilot tone of one UE.In the case, state control unit 52 be additionally operable to the transmitting element 53 to
After first UE sends configuration information, the transmitting element 53 is controlled on first running time-frequency resource, to described first
UE sends pilot tone.It should be noted that the running time-frequency resource where the first UE of configuration information instruction carries out interferometry is IMR
Second running time-frequency resource at place, and the configuration information also indicates the first time-frequency shared by the pilot tone for being sent to the first UE
In the case of resource, control unit 52 is additionally operable to the first running time-frequency resource of control and is not used in the data for sending the 2nd UE.
Further, as shown in fig. 6, the base station further includes：
Position determination unit 54, for determining the position of the first UE, the position of the first UE includes one virtually
The intersection of partial virtual sector in the corresponding all virtual sectors in the inside of sector or the base station.
The generation unit 51 is additionally operable to the position of the first UE determined according to the position determination unit 54, described in generation
Configuration information.
The above-mentioned pilot tone referred to is specifically as follows CSI-RS.
It should be noted that the transmitting element in the embodiment of the present invention can be the transmitter of base station；Generation unit can be with
For the processor individually set up, it can also be integrated in some processor of base station and realize, in addition it is also possible to program code
Form be stored in the memory of base station, called by some processor of base station and perform the function of more than generation unit.
The same generation unit of realization of control unit and position determination unit, and can be integrated with generation unit, it can also be independent
It realizes.Processor described here can be a central processing unit（Central Processing Unit, CPU）, either
Specific integrated circuit（Application Specific Integrated Circuit, ASIC）Or it is arranged to implement
One or more integrated circuits of the embodiment of the present invention.
On the other hand, the embodiment of the present invention also provides a kind of user equipment, as shown in fig. 7, comprises：
Receiving unit 71, for receiving the configuration information of base station transmission, the configuration information indicates the use as the first UE
Family equipment carries out the running time-frequency resource where interferometry, and the running time-frequency resource is additionally operable to send the data of the 2nd UE；It is wherein described
First UE and the 2nd UE composition pairings UE.
Interferometry unit 72, for carrying out interferometry on the running time-frequency resource that is indicated in the configuration information.
In a kind of realization method of the embodiment of the present invention, the first UE of the configuration information instruction carries out interferometry institute
Running time-frequency resource be the first running time-frequency resource for being sent to shared by the pilot tone of the first UE, interferometry unit 72 is specifically used
In：Channel measurement is carried out to the pilot tone that the base station is sent on first running time-frequency resource, obtaining, which includes the 2nd UE, does
The channel measurement disturbed.
In another realization method of the embodiment of the present invention, the first UE of the configuration information instruction carries out interferometry
The running time-frequency resource at place is the second running time-frequency resource where interference management resource IMR, and the configuration information is also indicated and is sent to
The first running time-frequency resource shared by the pilot tone of first UE.In the case, as shown in figure 8, the user equipment further includes：
Signal measurement unit 73, for carrying out signal survey to the pilot tone that the base station is sent on first running time-frequency resource
Amount.
Measurement result acquiring unit 74, for the interferometry according to the interferometry unit 72 and the signal measurement
Unit 73 signal measurement is as a result, obtain the channel measurement for including the 2nd UE interference.
It should be noted that the receiving unit of user equipment can be the receiver of user equipment in the embodiment of the present invention；
Interferometry unit can be the processor individually set up, and can also be integrated in some processor of user equipment and realize,
In addition it is also possible to it is stored in the form of program code in the memory of user equipment, by some processor of user equipment
It calls and performs the function of more than interferometry unit.The realization of signal measurement unit and measurement result acquiring unit is surveyed with interference
It is identical to measure the realization of unit, and can be integrated with interferometry unit（For example signal measurement unit and interference are surveyed
Amount unit base integrates）, can also independently realize.Processor described here can be a CPU or ASIC,
Or it is arranged to implement one or more integrated circuits of the embodiment of the present invention.
Base station provided in an embodiment of the present invention and user equipment, are used to implement the channel measurement of pairing UE, and base station is to first
UE sends configuration information, in the configuration information instruction be sent to the first running time-frequency resource shared by the pilot tone of the first UE, and the
Pilot tone is sent out to the first UE on one running time-frequency resource, data are sent out to the 2nd UE；First UE carries out letter on the first running time-frequency resource to pilot tone
Road measure, due to base station by the first running time-frequency resource not only to the first UE send out pilot tone and but also to the 2nd UE send out data, the first UE into
Row channel measurement can obtain the channel measurement for including the 2nd UE interference.Compared with prior art, due to consideration that
Interference in data transmission procedure caused by the 2nd UE and the first UE multiplexings same running time-frequency resource to the first UE so that first
The interference measurement results of UE are more accurate.
In addition, the embodiment of the present invention also provides a kind of base station, as shown in figure 9, the base station includes:Transmitter 91, processor
92。
For generating configuration information, the configuration information indicates where the first UE progress interferometry processor 92
Running time-frequency resource.
Transmitter 91 is used to send information to pairing UE.
Processor 92 is additionally operable to control transmitter 91 and the configuration information of the generation of processor 92 is sent to the first UE, and controls
On the running time-frequency resource that transmitter 91 is indicated in configuration information data are sent to the 2nd UE.
In the case of one kind, the running time-frequency resource where the first UE progress interferometries of the configuration information instruction is to be sent to
The first running time-frequency resource shared by the pilot tone of first UE, and the processor 92 is additionally operable in the transmitter 91 to the first UE
After sending configuration information, control transmitter 91 sends pilot tone on first running time-frequency resource, to the first terminal.
In another case, the running time-frequency resource where the first UE of the configuration information instruction carries out interferometry is IMR
Second running time-frequency resource at place, and the configuration information also indicates the first time-frequency money shared by the pilot tone for being sent to the first UE
Source.The processor 92 is additionally operable in the transmitter 91 after the first UE sends configuration information, and control transmitter 91 is in institute
It states on the first running time-frequency resource, pilot tone is sent to the first UE.Also, processor 92 is additionally operable to control first running time-frequency resource
It is not used in the data for sending the 2nd UE.
Processor 92 is additionally operable to determine the position of the first UE, and the position of the first UE includes virtual sectors
The intersection of partial virtual sector in the corresponding all virtual sectors in internal or described base station.
Processor 92 is additionally operable to the position according to the first UE, generates the configuration information.
Pilot tone described in the embodiment of the present invention can be CSI-RS.
In addition, further including the components such as receiver, memory and bus in base station, it is not shown in fig.9.Wherein receiver and
Transmitter may be constructed transceiver.Memory can be used for storing executable program code, which includes calculating
Machine operational order.Bus can connect the components such as receiver, transmitter and memory.
In addition, a kind of user equipment is also provided, as shown in Figure 10, including：Receiver 1001, processor 1002.
Receiver 1001 is used to receive the configuration information of base station transmission, and the configuration information instruction is as the described of the first UE
User equipment carries out the running time-frequency resource where interferometry, and the running time-frequency resource is additionally operable to send the data of the 2nd UE；Wherein institute
State the first UE and the 2nd UE composition pairings UE.
Processor 1002 is used to carry out interferometry on the running time-frequency resource of configuration information instruction.
Running time-frequency resource where first UE of the configuration information instruction carries out interferometry is to be sent to the first UE
Pilot tone shared by the first running time-frequency resource, and, the processor 1002 is specifically used for：To described on first running time-frequency resource
The pilot tone that base station is sent carries out channel measurement, obtains the channel measurement for including the 2nd UE interference.
Second time-frequency of the running time-frequency resource where IMR where the first UE progress interferometries of the configuration information instruction
Resource, and the configuration information also indicates the first running time-frequency resource shared by the pilot tone for being sent to the first UE, and, the processing
Device 1002 is additionally operable to carry out signal measurement to the pilot tone that the base station is sent on first running time-frequency resource, according to interferometry
Sum signal measurement is as a result, obtain the channel measurement for including the 2nd UE interference.
Base station provided in an embodiment of the present invention and user equipment, are used to implement the channel measurement of pairing UE, and base station is to conduct
The user equipment of first UE sends configuration information, when instruction is sent to first shared by the pilot tone of the first UE in the configuration information
Frequency resource, and pilot tone is sent out to the first UE on the first running time-frequency resource, send out data to the 2nd UE；First UE is on the first video resource
Channel measurement is carried out to pilot tone, since pilot tone is sent out in base station by the first running time-frequency resource to the first UE and sends out number to the 2nd UE again
According to the first UE, which carries out channel measurement, can obtain the channel measurement for including the 2nd UE interference.Compared with prior art, by
In in view of being done caused by the 2nd UE in data transmission procedure and the first UE multiplexing same running time-frequency resources to the first UE
It disturbs so that the interference measurement results of the first UE are more accurate.
The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can readily occur in change or replacement, should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention described should be subject to the protection scope in claims.
Claims (15)
1. a kind of method for improving channel measurement accuracy, for matching the channel measurement of user equipment (UE), the pairing UE bags
Include the first UE and the 2nd UE, which is characterized in that including：
Base station generates configuration information, and the configuration information indicates that the first UE carries out the running time-frequency resource where interferometry；
The configuration information is sent to the first UE；
On the running time-frequency resource of configuration information instruction, data are sent to the 2nd UE；
Running time-frequency resource where first UE of the configuration information instruction carries out interferometry is to be sent to leading for the first UE
The first running time-frequency resource shared by frequency, and in the base station after the first UE sends configuration information, the method further includes：
On first running time-frequency resource, pilot tone is sent to the first UE.
2. according to the method described in claim 1, it is characterized in that, the first UE of configuration information instruction carries out interferometry
The running time-frequency resource at place is the second running time-frequency resource where interference management resource IMR, and the configuration information is also indicated and is sent to
The first running time-frequency resource shared by the pilot tone of first UE, and in the base station after the first UE sends configuration information, it is described
Method further includes：
On first running time-frequency resource, pilot tone is sent to the first UE.
3. according to the method described in claim 2, it is characterized in that, first running time-frequency resource, which is not used in, sends the 2nd UE
Data.
4. method according to any one of claims 1 to 3, which is characterized in that the base station generates configuration information, including：
The base station determines the position of the first UE, and the position of the first UE includes inside or the institute of virtual sectors
State the intersection of the partial virtual sector in the corresponding all virtual sectors in base station；
According to the position of the first UE, the configuration information is generated.
5. method according to any one of claims 1 to 3, which is characterized in that pilot tone is channel state information reference signals
CSI-RS。
A kind of 6. method for improving channel measurement accuracy, which is characterized in that including：
First user equipment (UE) receives the configuration information that base station is sent, and the configuration information indicates that the first UE carries out interference survey
Running time-frequency resource where measuring, and the running time-frequency resource is additionally operable to send the data of the 2nd UE；Wherein described first UE and described second
UE composition pairings UE；
First UE carries out interferometry on the running time-frequency resource indicated by the configuration information；
Running time-frequency resource where first UE of the configuration information instruction carries out interferometry is to be sent to leading for the first UE
The first running time-frequency resource shared by frequency, and, the first UE carries out interference survey on the running time-frequency resource indicated by the configuration information
Amount, including：
First UE carries out channel measurement on first running time-frequency resource to the pilot tone that the base station is sent, and obtains including institute
State the channel measurement of the 2nd UE interference.
7. according to the method described in claim 6, it is characterized in that, the first UE of configuration information instruction carries out interferometry
The running time-frequency resource at place is the second running time-frequency resource where interference management resource IMR, and the configuration information is also indicated and is sent to
The first running time-frequency resource shared by the pilot tone of first UE, and, the method further includes：
First UE carries out signal measurement on first running time-frequency resource to the pilot tone that the base station is sent；
According to the interferometry and signal measurement as a result, obtaining including the channel measurement that the 2nd UE disturbs.
8. a kind of base station, for improving the accuracy of the channel measurement of pairing user equipment (UE), the pairing UE includes the first UE
With the 2nd UE, which is characterized in that including：
Generation unit, for generating configuration information, the configuration information indicate the first UE carry out where interferometry when
Frequency resource；
Transmitting element, for sending information to the pairing UE；
Control unit, for controlling the configuration information that the transmitting element is generated to the first UE transmissions generation unit,
And on the running time-frequency resource that indicate in the configuration information of the control transmitting element, to the 2nd UE transmission data；
Running time-frequency resource where first UE of the configuration information instruction carries out interferometry is to be sent to leading for the first UE
The first running time-frequency resource shared by frequency, and described control unit is additionally operable to send with confidence to the first UE in the transmitting element
After breath, the transmitting element is controlled on first running time-frequency resource, and pilot tone is sent to the first UE.
9. base station according to claim 8, which is characterized in that the first UE of the configuration information instruction carries out interferometry
The running time-frequency resource at place is the second running time-frequency resource where interference management resource IMR, and the configuration information is also indicated and is sent to
The first running time-frequency resource shared by the pilot tone of first UE, and described control unit is additionally operable in the transmitting element to described
After one UE sends configuration information, the transmitting element is controlled on first running time-frequency resource, is led to the first UE transmissions
Frequently.
10. base station according to claim 9, which is characterized in that described control unit is additionally operable to control first time-frequency
Resource is not used in the data for sending the 2nd UE.
11. according to the base station described in claim 8 to 10 any one, which is characterized in that the base station further includes：
Position determination unit, for determining the position of the first UE, the position of the first UE includes virtual sectors
The intersection of partial virtual sector in the corresponding all virtual sectors in internal or described base station；And
The generation unit for the position of the first UE determined according to the position determination unit, generates the configuration
Information.
12. according to the base station described in claim 8 to 10 any one, which is characterized in that pilot tone refers to for channel state information
Signal CSI-RS.
13. a kind of user equipment, which is characterized in that including：
Receiving unit, for receiving the configuration information of base station transmission, the configuration information instruction is as the first user equipment (UE)
The user equipment carries out the running time-frequency resource where interferometry, and the running time-frequency resource is additionally operable to send the data of the 2nd UE；Its
Described in the first UE and the 2nd UE composition pairing UE；
Interferometry unit, for carrying out interferometry on the running time-frequency resource that is indicated in the configuration information；
Running time-frequency resource where first UE of the configuration information instruction carries out interferometry is to be sent to leading for the first UE
The first running time-frequency resource shared by frequency, and the interferometry unit, are specifically used for：To the base on first running time-frequency resource
The pilot tone sent of standing carries out channel measurement, obtains the channel measurement for including the 2nd UE interference.
14. user equipment according to claim 13, which is characterized in that the first UE of the configuration information instruction is done
Running time-frequency resource where disturbing measurement is the second running time-frequency resource where interference management resource IMR, and the configuration information also indicates
The first running time-frequency resource shared by the pilot tone of the first UE is sent to, and, the base station further includes：
Signal measurement unit, for carrying out signal measurement to the pilot tone that the base station is sent on first running time-frequency resource；
Measurement result acquiring unit, for the interferometry and the letter of the signal measurement unit according to the interferometry unit
Number measurement as a result, obtaining including the channel measurement that the 2nd UE is disturbed.
15. a kind of computer readable storage medium, computer program code, feature are stored in the computer storage media
It is, when the computer program code on base station when running so that the base station perform claim requirement 1-5 any one institute
The method stated, alternatively, when the computer program code is run on a user device so that the user equipment perform claim
It is required that the method described in 6 or 7.
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|---|---|---|---|
| PCT/CN2013/087332 WO2015070457A1 (en) | 2013-11-18 | 2013-11-18 | Method for improving accuracy of channel measurement, base station and user equipment |
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| CN103797837B true CN103797837B (en) | 2018-06-05 |
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| CN109088683B (en) * | 2017-06-14 | 2020-12-29 | ***通信有限公司研究院 | Method for measuring cross link interference between user terminals, user terminal and transmission receiving point |
| WO2021248298A1 (en) * | 2020-06-09 | 2021-12-16 | Qualcomm Incorporated | Power and interference measurement for wireless sensing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103037397A (en) * | 2011-09-30 | 2013-04-10 | 华为技术有限公司 | Interference measurement indicating method, interference measurement method, related device and communication system |
| CN103312389A (en) * | 2012-03-06 | 2013-09-18 | 华为技术有限公司 | Multiuser interference suppression method, terminal and base station |
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| CN102149124B (en) * | 2011-04-22 | 2014-08-06 | 电信科学技术研究院 | Method and equipment for measuring interference under cooperated multi-point transmission |
| WO2013087034A1 (en) * | 2011-12-15 | 2013-06-20 | 华为技术有限公司 | Interference coordination method, base station and communication system |
| CN103391631B (en) * | 2012-05-11 | 2018-07-24 | 中兴通讯股份有限公司 | The sending method and device of CSI-RS |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103037397A (en) * | 2011-09-30 | 2013-04-10 | 华为技术有限公司 | Interference measurement indicating method, interference measurement method, related device and communication system |
| CN103312389A (en) * | 2012-03-06 | 2013-09-18 | 华为技术有限公司 | Multiuser interference suppression method, terminal and base station |
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