CN107204946A - A kind of phase compensating method and device for PUSCH channels - Google Patents
A kind of phase compensating method and device for PUSCH channels Download PDFInfo
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- CN107204946A CN107204946A CN201610159173.7A CN201610159173A CN107204946A CN 107204946 A CN107204946 A CN 107204946A CN 201610159173 A CN201610159173 A CN 201610159173A CN 107204946 A CN107204946 A CN 107204946A
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- H04L25/00—Baseband systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0224—Channel estimation using sounding signals
- H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
- H04L25/023—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols
- H04L25/0232—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols by interpolation between sounding signals
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Abstract
The invention discloses a kind of phase compensating method and device for PUSCH channels.This method includes：Obtain each resource block RB channel response phase；According to the phase difference value between two adjacent R B, each resource unit RE channel response phase is obtained using linear interpolation of phase；Compensated according to the conjugate pair PUSCH channels of the compensation phase of channel response phase.The present invention is compensated by the phase of SRS channels to PUSCH channels, and the precision of phase estimation can be made more accurate, while effectively reduction improves the performance of receiver because of the computational complexity of joint account.
Description
Technical field
It is used for PUSCH (Physical Uplink Shared the present invention relates to network communication field, more particularly to one kind
Channel, Physical Uplink Shared Channel) channel phase compensating method and device.
Background technology
With the development of the communication technology, mobile communication is used widely with its unique advantage, and will be at following
Played an important role in people's communication.In mobile communication system, due to the movement of user, receive signal inevitably by
To the influence of multipath fading and shadow effect.Be in mobile communications influence to anti-fading generation, diversity reception be frequently with
One of effective measures.
Mobile wireless signal is received in a relatively short distance, signal fadeout is in time, frequency, space, angle and pole
Independence is all presented in change.The independent multiple signals that decline can be obtained using corresponding method using these features.It is many obtaining
, it is necessary to which they are merged with processing after the independent signal of individual decline.The effect of merging be exactly by phase adjustment and when
Each tributary signal after prolonging is added so that signal to noise ratio is improved.
The improvement of signal to noise ratio is relevant with weighted factor.The difference selected according to weighted factor, there is three kinds of basic merging sides
Formula：Selection combining, Maximal ratio combiner and equal gain combining.Three kinds of basic merging methods, Maximal ratio combiner performance is best,
Equal gain combining performance is taken second place, and selection combining performance is worst.Although Maximal ratio combiner performance preferably, works as number of antennas very
When many, particularly with multiple-input and multiple-output (MIMO) system, MIMO is realized using multiple antennas, union operation is answered
Miscellaneous degree is very high, causes the service behaviour of communication system to substantially reduce.
The content of the invention
The present invention provides a kind of phase compensating method and device for PUSCH channels, to solve to close in the prior art
The problem of complexity of union is higher.
For achieving the above object, the present invention uses following technical schemes：
According to one aspect of the present invention there is provided a kind of phase compensating method for PUSCH channels, including：
Obtain each resource block RB channel response phase；
According to the phase difference value between two adjacent R B, each resource unit RE channel is obtained using linear interpolation of phase
Response phase；
Compensated according to the conjugate pair PUSCH channels of the compensation phase of the channel response phase.
Further, the channel response phase for obtaining each resource block RB, including：
According to the detection reference signal SRS information of reception, each RB channel is obtained using default channel estimation methods
Response；
The channel response phase for obtaining RB is calculated according to each RB channel response.
Further, the phase difference value according between two adjacent R B, each money is obtained using linear interpolation of phase
The formula of source unit RE channel response phase is as follows：
Also,
Also,
Wherein, PmFor m-th of RE channel response phase；PiFor i-th of RB channel response phase；PdFor i-th RB with
I+1 RB channel response phase difference values；M is RE index value, and n is RB sum.
Further, methods described also includes：
RE channel response phase is obtained according to the 2nd RB and the 1st RB channel response phase difference value in 1st RB,
And m values are the integer between [0,11]；
RE channel response phase is obtained according to n-th of RB and (n-1)th RB channel response phase difference value in n-th of RB
Take, and m values are the integer between [12n-12,12n-1], n is RB sum；
Preceding 6 RE channel response phase is according to i-th of RB and the i-th -1 RB channel response phase difference in i-th of RB
Value is obtained, and m values are the integer between [12+12* (i-2), 17+12* (i-2)], and rear 6 RE channel response phase is according to the
I RB and i+1 RB channel response phase difference value is obtained, and m values is between [18+12* (i-2), 23+12* (i-2)]
Integer；Wherein, i >=2.
Further, the conjugate pair PUSCH channels of the compensation phase according to the channel response phase are compensated
Formula it is as follows：
Wherein, Y is m-th of RE PUSCH channel compensation values；For the conjugation of m-th of RE compensation phase；Ym is
The PUSCH data that m-th of RE is received.
According to another aspect of the present invention there is provided a kind of phase compensation device for PUSCH channels, including：
First acquisition module, the channel response phase for obtaining each resource block RB；
Second acquisition module, for according to the phase difference value between two adjacent R B, obtaining every using linear interpolation of phase
Individual resource unit RE channel response phase；
Compensating module, the conjugate pair PUSCH channels for the compensation phase according to the channel response phase are compensated.
Further, first acquisition module specifically for：
According to the detection reference signal SRS information of reception, each RB channel is obtained using default channel estimation methods
Response；
The channel response phase for obtaining RB is calculated according to each RB channel response.
Further, second acquisition module obtains each resource unit RE channel response using linear interpolation of phase
The formula of phase is as follows：
Also,
Also,
Wherein, PmFor m-th of RE channel response phase；PiFor i-th of RB channel response phase；PdFor i-th RB with
I+1 RB channel response phase difference values；M is RE index value, and n is RB sum.
Further, methods described also includes：
RE channel response phase is obtained according to the 2nd RB and the 1st RB channel response phase difference value in 1st RB,
And m values are the integer between [0,11]；
RE channel response phase is obtained according to n-th of RB and (n-1)th RB channel response phase difference value in n-th of RB
Take, and m values are the integer between [12n-12,12n-1], n is RB sum；
Preceding 6 RE channel response phase is according to i-th of RB and the i-th -1 RB channel response phase difference in i-th of RB
Value is obtained, and m values are the integer between [12+12* (i-2), 17+12* (i-2)], and rear 6 RE channel response phase is according to the
I RB and i+1 RB channel response phase difference value is obtained, and m values is between [18+12* (i-2), 23+12* (i-2)]
Integer；Wherein, i >=2.
Further, the compensating unit is mended according to the conjugate pair PUSCH channels of each RE channel response phase
The formula repaid is as follows：
Wherein, Y is m-th of RE PUSCH channel compensation values；For the conjugation of m-th of RE compensation phase；YmFor
The PUSCH data that m-th of RE is received.
The present invention has the beneficial effect that：
Phase compensating method provided by the present invention for PUSCH channels, according to two adjacent RB in SRS channels
RE channel response phase in each RB of channel response phase estimation, further according to obtained each RE channel response phase pair
PUSCH channels are compensated.By the present invention precision of phase estimation can be made more accurate, while effectively reduction is because merging meter
The computational complexity of calculation, improves the performance of receiver.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, and in order to allow above and other objects of the present invention, feature and advantage can
Become apparent, below especially exemplified by the embodiment of the present invention.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only
Some embodiments of the present invention, for those of ordinary skill in the art, without having to pay creative labor, also
Other accompanying drawings can be obtained according to these accompanying drawings.
Fig. 1 be the embodiment of the present invention in be used for PUSCH channels phase compensating method flow chart；
Fig. 2 be the embodiment of the present invention in be used for PUSCH channels phase compensation device structured flowchart.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Referring to Fig. 1, the invention provides a kind of phase compensating method for PUSCH channels, including：
Step 1, each resource block RB channel response phase is obtained；
Step 2, according to adjacent R B channel response phase, each resource unit RE letter is obtained using linear interpolation of phase
Road response phase；
Step 3, compensated according to the conjugate pair PUSCH channels of the compensation phase of channel response phase.
Phase compensating method provided by the present invention for PUSCH channels, according to two adjacent RB in SRS channels
RE channel response phase in each RB of channel response phase estimation, further according to obtained each RE channel response phase pair
PUSCH channels are compensated.By the present invention precision of phase estimation can be made more accurate, while effectively reduction is because merging meter
The computational complexity of calculation, improves the performance of receiver.
The specific implementation process to the present invention describes in detail with reference to the accompanying drawings and detailed description.
Step 1 is introduced first, is obtained each RB signal response phase, is specifically included following steps：
Pass through least square method LS channel estimation methods set in advance using the SRS signal received in the embodiment of the present invention
Or least mean-square error MMSE channel estimation methods obtain each RB channel response H.For LS channel estimation methods or
The specific calculating process that MMSE channel estimation methods obtain channel response H is already belonging to the known skill of those skilled in the art
Art, the present invention is no longer repeated.
Obtain each RB channel response H response phase Pi。
Specifically, channel response H real and imaginary parts are taken absolute value respectively and obtains channel response H ', and obtain channel sound
Answer H ' phase Pi '.According to channel response H ' phase Pi ', channel response H phase Pi is determined.According to where channel response H
Quadrant, and phase Pi ' determines phase Pi numerical value, including as follows：
If H numerical value falls into first quartile, then Pi=Pi '；
If H numerical value falls into the second quadrant, then Pi=180-Pi '；
If H numerical value falls into third quadrant, then Pi=Pi ' -180；
If H numerical value falls into fourth quadrant, then Pi=-Pi '.
Next introduces step 2, and according to adjacent R B channel response phase, each resource list is obtained using linear interpolation of phase
First RE channel response phase.
In the embodiment of the present invention, when obtaining RE channel response, according to the difference of adjacent R B channel response phase, lead to
The mode of phase linearity difference is crossed, the channel response phase of each RE in RB is obtained.
Specifically, if i-th of RB phase is Pi, i+1 RB phase is Pi+1, calculate phase PiAnd Pi+1Difference
Pd=Pi+1-Pi。
Judge PdWith 180 size, and according to judged result obtain Pn, formula is as follows：、
Wherein, PdFor i-th of RB and i+1 RB channel response phase difference values.
Each RE channel response phase is calculated according to linear interpolation of phase formula, specific formula is as follows：
Wherein, PmFor m-th of RE channel response phase；Pi is i-th of RB channel response phase；M is RE index,
Span is the integer between [0,12n-1], and n is RB sum；J is obtained by below equation：
Specifically, in the 1st RB RE channel response phase according to the 2nd RB and the 1st RB channel response phase difference
Value is obtained, and m values are the integer between [0,11]；In n-th of RB RE channel response phase according to n-th RB and (n-1)th
RB channel response phase difference value is obtained, and m values are the integer between [12n-11,12n-1], and n is RB sum；I-th of RB
In preceding 6 RE channel response phase obtained according to i-th of RB and the i-th -1 RB channel response phase difference value, and m values are
Integer between [12+12* (i-2), 17+12* (i-2)], rear 6 RE channel response phase is according to i-th of RB and i+1 RB
Channel response phase difference value obtain, and m values be [18+12* (i-2), 23+12* (i-2)] between integer；Wherein, i >=2.
Then step 3 is introduced, is compensated according to the conjugate pair PUSCH channels of the compensation phase of RE channel response phases.
Compensated by the conjugate pair PUSCH channels of the compensation phase of each RE channel response phase, calculation formula
It is as follows：
Wherein, Y is m-th of RE PUSCH channel compensation values；For the conjugation of m-th of RE compensation phase；YmFor
The PUSCH data that m-th of RE is received.
Below in conjunction with accompanying drawing and embodiment, the present invention will be described in further detail.It should be appreciated that described herein
Specific embodiment only to explain the present invention, not limit the present invention.
Embodiment 1
Assuming that it is 4 that PUSCH, which takes RB numbers, embodiment is as follows:
First, each RB channel response phase is obtained according to the SRS received.LS is used using the SRS signal of reception
Channel estimation or MMSE channel estimations obtain each RB channel response H=[0 1+1i i 1-i].To H real and imaginary parts
Take absolute value respectively and obtain H '=[0 1+1i i], ask H ' phase Pi '=[0 45 90 135].The quadrant fallen into according to H,
Obtain Pi=[0 45 90 135].
Secondly, each RE channel response phase is obtained by linear interpolation of phase.
1st RB phase is P1=0, and the 2nd RB phase is P2=45.Calculate P1 and P2 difference Pd=P2-P1
=45.Because Pd is more than -180 and less than 180, P=Pd=45.It can be obtained according to linear interpolation of phase formula (2),
J takes the channel response phase of RE in the 0, the 1st RB, and m is integer between interval [0,11], is carried out according to above-mentioned formula
Rounding up can obtain [- 19-15-11-7-4 048 11 15 19 23].
J takes the channel response phase of preceding 6 RE in the 0, the 2nd RB, and m is integer between interval [12,17], according to above-mentioned public affairs
Formula round up that RE channel response phase [26 30 34 38 41 45] can be obtained.
2nd RB phase is P2=45, and the 3rd RB phase is P3=90.Calculate P3 and P2 difference Pd=P3-P2
=45.Because Pd is more than -180 and less than 180, Pn=Pd=45.Pn and i bring formula (2) into and can obtained,
6 RE channel response phase after j is taken in the 1, the 2nd RB, integers of the m between interval [18,23], according to above-mentioned
Formula round up that RE channel response phase [49 53 56 60 64 68] can be obtained.
J takes the channel response phase of preceding 6 RE in the 1, the 3rd RB, integers of the m between interval [24,29], according to above-mentioned
Formula round up that RE channel response phase [71 75 79 83 86 90] can be obtained
3rd RB phase is P3=90, and the 4th RB phase is P4=135.Calculate P2 and P3 difference Pd=P4-
P3=45.Because Pd is more than -180 and less than 180, Pn=Pd=45.Pn and i bring formula (2) into and can obtained,
J takes the channel response phase of preceding 6 RE in the 2, the 3rd RB, integers of the m between interval [30,35], according to above-mentioned
Formula round up that RE channel response phase [94 98 101 105 109 113] can be obtained.
J takes the channel response phase of RE in the 2, the 4th RB, integers of the m between interval [35,41], according to above-mentioned formula
Progress rounds up and can obtain RE channel response phase [116 121 124 128 131 135 139 143 146 150 154
158]。
So the channel response of RE indexes 0 to 35 is [- 19-15-11-7-4 048 11 15 19 23 26 30
34 38 41 45 49 53 56 60 64 68 71 75 79 83 86 90 94 98 101 105 109 113 116 121
124 128 131 135 139 143 146 150 154 158]。
Finally, compensated according to the conjugate pair PUSCH channels of each RE channel response phase.According to each of acquisition
RE channel response phase, calculates the conjugation of response phase, and brings conjugate into formula (4) and can obtain, and each RE is believed PUSCH
Road compensates value, afterwards merges all offsets, the PUSCH channel datas as received.
Embodiment 2
Assuming that it is 3 that PUSCH, which takes RB numbers, embodiment is as follows:
First, each RB channel response phase is obtained according to the SRS received.LS is used using the SRS signal of reception
Channel estimation or MMSE channel estimations obtain each RB channel response H=[0 1+1i i].To H real and imaginary parts difference
Take absolute value and obtain H '=[0 1+1i i], ask H ' phase Pi '=[0 45 90].The quadrant fallen into according to H, obtains Pi=
[0 45 90]。
Secondly, each RE channel response phase is obtained by linear interpolation of phase.
1st RB phase is P1=0, and the 2nd RB phase is P2=45.Calculate P1 and P2 difference Pd=P2-P1
=45.Because Pd is more than -180 and less than 180, P=Pd=45.It can be obtained according to linear interpolation of phase formula (2),
J takes the channel response phase of RE in the 0, the 1st RB, and integers of the m between interval [0,11] enters according to above-mentioned formula
Row rounds up and can obtain RE channel response phase [- 19-15-11-7-4 048 11 15 19 23].
J takes the channel response phase of preceding 6 RE in the 0, the 2nd RB, and m is integer between interval [12,17], according to above-mentioned public affairs
Formula round up and can obtain RE channel response phase and round up and can obtain [26 30 34 38 41 45].
2nd RB phase is P2=45, and the 3rd RB phase is P3=90.Calculate P3 and P2 difference Pd=P3-P2
=45.Because Pd is more than -180 and less than 180, Pn=Pd=45.Pn and i bring formula (2) into and can obtained,
6 RE channel response phase after j is taken in the 1, the 2nd RB, m is integer between interval [18,23], according to above-mentioned public affairs
Formula round up and can obtain RE channel response phase and round up and can obtain [49 53 56 60 64 68]
J takes the channel response phase of preceding 6 RE in the 1, the 3rd RB, and m is integer between interval [24,35], according to above-mentioned public affairs
Formula round up and can obtain RE channel response phase and round up and can obtain [71 75 79 83 86 90 94 98
101 105 109 113]。
So the channel response of RE indexes 0 to 35 is [- 19-15-11-7-4 048 11 15 19 23 26 30
34 38 41 45 49 53 56 60 64 68 71 75 79 83 86 90 94 98 101 105 109 113]。
Finally, compensated according to the conjugate pair PUSCH channels of each RE channel response phase.According to each of acquisition
RE channel response phase, calculates the conjugation of response phase, and brings conjugate into formula (4) and can obtain, and each RE is believed PUSCH
Road compensates value, afterwards merges all offsets, the PUSCH channel datas as received.
Embodiment 3
Assuming that it is 2 that PUSCH, which takes RB numbers, embodiment 1 is as follows:
First, each RB channel response phase is obtained according to the SRS received.LS is used using the SRS signal of reception
Channel estimation or MMSE channel estimations obtain each RB channel response H=[1+1i -1+1i].
H real and imaginary parts are taken absolute value respectively and obtain H '=[1+1i 1+1i], H ' phase P is soughti'=[45
45].The quadrant fallen into according to H, obtains Pi'=[45 135].
Secondly, each RE channel response phase is obtained by linear interpolation of phase.It can be obtained by step 1, the 1st RB phase
Position is P1=45, and the 2nd RB phase is P2=135.P0 and P1 difference Pd=P2-P1=90 is calculated, due to -180<Pd<
180, then Pn=90.
It can be obtained according to linear interpolation of phase formula (2),
Integer between m span [0,23], each RE in the 1st RB and the 2nd RB is calculated according to above-mentioned formula
Channel response phase, progress rounds up and can obtain [8 15 23 30 38 45 53 60 68 75 83 90 98 105 113
120 128 135 143 150 158 165 173 180]。
Finally, compensated according to the conjugate pair PUSCH channels of each RE channel response phase.According in step 102
The each RE obtained channel response phase, calculates the conjugation of response phase, and brings conjugate into formula (4) and can obtain, each
RE afterwards merges all offsets to compensating value to PUSCH channels, the PUSCH channel datas as received.
As shown in Fig. 2 the present invention also provides a kind of phase compensation device for PUSCH channels, including：
First acquisition module, the channel response phase for obtaining each resource block RB；
Second acquisition module, for according to the phase difference value between two adjacent R B, obtaining every using linear interpolation of phase
Individual resource unit RE channel response phase；
Compensating module, the conjugate pair PUSCH channels for the compensation phase according to channel response phase are compensated.
Further, the first acquisition module specifically for：
According to the detection reference signal SRS information of reception, each RB channel is obtained using default channel estimation methods
Response；
The channel response phase for obtaining RB is calculated according to each RB channel response.
Further, the second acquisition module obtains each resource unit RE channel response phase using linear interpolation of phase
Formula it is as follows：
Also,
And
Wherein, PmFor m-th of RE channel response phase；PiFor i-th of RB channel response phase；PdFor i-th RB with
I+1 RB channel response phase difference values；M is RE index value, and n is RB sum.
Further, the second acquisition module specifically for：
RE channel response phase is obtained according to the 2nd RB and the 1st RB channel response phase difference value in 1st RB,
And m values are the integer between [0,11]；
RE channel response phase is obtained according to n-th of RB and (n-1)th RB channel response phase difference value in n-th of RB
Take, and m values are the integer between [12n-12,12n-1], n is RB sum；
Preceding 6 RE channel response phase is according to i-th of RB and the i-th -1 RB channel response phase difference in i-th of RB
Value is obtained, and m values are the integer between [12+12* (i-2), 17+12* (i-2)], and rear 6 RE channel response phase is according to the
I RB and i+1 RB channel response phase difference value is obtained, and m values is between [18+12* (i-2), 23+12* (i-2)]
Integer；Wherein, i >=2.
Further, compensating unit is compensated according to the conjugate pair PUSCH channels of each RE channel response phase
Formula is as follows：
Wherein, Y is m-th of RE PUSCH channel compensation values；For the conjugation of m-th of RE compensation phase；YmFor
The PUSCH data that m-th of RE is received.
One of ordinary skill in the art will appreciate that realize all or part of flow in above-described embodiment method, being can be with
The hardware of correlation is instructed to complete by computer program, program can be stored in computer read/write memory medium, the journey
Sequence is upon execution, it may include such as the flow of the embodiment of above-mentioned each method.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (10)
1. a kind of phase compensating method that PUSCH channels are shared for physical uplink, it is characterised in that including：
Obtain each resource block RB channel response phase；
According to the phase difference value between two adjacent R B, each resource unit RE channel response is obtained using linear interpolation of phase
Phase；
Compensated according to the conjugate pair PUSCH channels of the compensation phase of the channel response phase.
2. phase compensating method as claimed in claim 1, it is characterised in that the channel response of each resource block RB of acquisition
Phase, including：
According to the detection reference signal SRS information of reception, each RB channel response is obtained using default channel estimation methods；
The channel response phase for obtaining RB is calculated according to each RB channel response.
3. phase compensating method as claimed in claim 1, it is characterised in that the phase difference according between two adjacent R B
Value, the formula that each resource unit RE channel response phase is obtained using linear interpolation of phase is as follows：
Also,
Also,
Wherein, PmFor m-th of RE channel response phase；PiFor i-th of RB channel response phase；PdFor i-th of RB and i-th+
1 RB channel response phase difference value；M is RE index value, and n is RB sum.
4. phase compensating method as claimed in claim 3, it is characterised in that methods described also includes：
RE channel response phase is obtained according to the 2nd RB and the 1st RB channel response phase difference value in 1st RB, and m takes
It is worth for the integer between [0,11]；
RE channel response phase is obtained according to n-th of RB and (n-1)th RB channel response phase difference value in n-th of RB, and m
Value is the integer between [12n-12,12n-1], and n is RB sum；
Preceding 6 RE channel response phase is obtained according to i-th of RB and the i-th -1 RB channel response phase difference value in i-th of RB
Take, and m values are the integer between [12+12* (i-2), 17+12* (i-2)], rear 6 RE channel response phase is according to i-th
RB and i+1 RB channel response phase difference value is obtained, and m values are whole between [18+12* (i-2), 23+12* (i-2)]
Number；Wherein, i >=2.
5. phase compensating method as claimed in claim 1, it is characterised in that the compensation according to the channel response phase
The formula that the conjugate pair PUSCH channels of phase are compensated is as follows：
<mrow>
<mi>Y</mi>
<mo>=</mo>
<msup>
<mrow>
<mo>(</mo>
<msup>
<mi>e</mi>
<mrow>
<msub>
<mi>jP</mi>
<mi>m</mi>
</msub>
</mrow>
</msup>
<mo>)</mo>
</mrow>
<mo>*</mo>
</msup>
<msub>
<mi>Y</mi>
<mi>m</mi>
</msub>
</mrow>
Wherein, Y is m-th of RE PUSCH channel compensation values；For the conjugation of m-th of RE compensation phase；YmFor m-th
The PUSCH data that RE is received.
6. a kind of phase compensation device for PUSCH channels, it is characterised in that including：
First acquisition module, the channel response phase for obtaining each resource block RB；
Second acquisition module, for according to the phase difference value between two adjacent R B, each money to be obtained using linear interpolation of phase
Source unit RE channel response phase；
Compensating module, the conjugate pair PUSCH channels for the compensation phase according to the channel response phase are compensated.
7. phase compensation device as claimed in claim 6, it is characterised in that first acquisition module specifically for：
According to the detection reference signal SRS information of reception, each RB channel response is obtained using default channel estimation methods；
The channel response phase for obtaining RB is calculated according to each RB channel response.
8. phase compensation device as claimed in claim 6, it is characterised in that second acquisition module is inserted using phase linearity
The formula that value obtains each resource unit RE channel response phase is as follows：
Also,
And
Wherein, PmFor m-th of RE channel response phase；PiFor i-th of RB channel response phase；PdFor i-th of RB and i-th+
1 RB channel response phase difference value；M is RE index value, and n is RB sum.
9. phase compensation device as claimed in claim 8, it is characterised in that second acquisition module specifically for：
RE channel response phase is obtained according to the 2nd RB and the 1st RB channel response phase difference value in 1st RB, and m takes
It is worth for the integer between [0,11]；
RE channel response phase is obtained according to n-th of RB and (n-1)th RB channel response phase difference value in n-th of RB, and m
Value is the integer between [12n-12,12n-1], and n is RB sum；
Preceding 6 RE channel response phase is obtained according to i-th of RB and the i-th -1 RB channel response phase difference value in i-th of RB
Take, and m values are the integer between [12+12* (i-2), 17+12* (i-2)], rear 6 RE channel response phase is according to i-th
RB and i+1 RB channel response phase difference value is obtained, and m values are whole between [18+12* (i-2), 23+12* (i-2)]
Number；Wherein, i >=2.
10. phase compensating method as claimed in claim 1, it is characterised in that the compensating unit is according to each RE channel
The formula that the conjugate pair PUSCH channels of response phase are compensated is as follows：
<mrow>
<mi>Y</mi>
<mo>=</mo>
<msup>
<mrow>
<mo>(</mo>
<msup>
<mi>e</mi>
<mrow>
<msub>
<mi>jP</mi>
<mi>m</mi>
</msub>
</mrow>
</msup>
<mo>)</mo>
</mrow>
<mo>*</mo>
</msup>
<msub>
<mi>Y</mi>
<mi>m</mi>
</msub>
</mrow>
Wherein, Y is m-th of RE PUSCH channel compensation values；For the conjugation of m-th of RE compensation phase；YmFor m-th
The PUSCH data that RE is received.
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