CN107872294A - A kind of periodic report CSI method - Google Patents

A kind of periodic report CSI method Download PDF

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Publication number
CN107872294A
CN107872294A CN201610861475.9A CN201610861475A CN107872294A CN 107872294 A CN107872294 A CN 107872294A CN 201610861475 A CN201610861475 A CN 201610861475A CN 107872294 A CN107872294 A CN 107872294A
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pmi1
positions
combined coding
config
3bit
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周欢
孙鹏
许瑞锋
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Beijing Xinwei Telecom Technology Inc
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Beijing Xinwei Telecom Technology Inc
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0027—Scheduling of signalling, e.g. occurrence thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H04B7/0486—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking channel rank into account
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0636—Feedback format
    • H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The present invention proposes a kind of periodic report CSI method, including：Combinations of the UE to RI and PMI1 carries out combined coding and obtains a combined coding value, united code is by (N1, N2), (O1, O2) determined with Config, combined coding value carries out periodic report in a subframe using PUCCH format2 forms, wherein, PMI1 includes the first long-term code word number i of dimension1,1With the second long-term code word number i of dimension1,2, N1/N2 is first dimension the/the second dimension antenna port number, and O1/O2 is first dimension the/the second dimension over-sampling rate, and Config is antenna configuration scenario parameters；ENB calculates the RI and PMI1 according to the combined coding value of reception and the united code.The present invention can carry all RI and PMI1 information with PUCCH format2 in a subframe.

Description

A kind of periodic report CSI method
Technical field
The present invention relates to wireless communication field, more particularly to a kind of periodic report CSI method.
Background technology
LTE R13 versions introduce two kinds of CSI-RS (Channel State Information-Reference Signal, channel state information reference signals), one kind is non-precoded CSI-RS (Class type-As), passes through same widths Broad beam realizes full MPS process；Another kind will be more using the mode of beam forming for beam forming CSI-RS (BF CSI-RS) Individual bay is mapped in a CSI-RS port, forms the wave beam with certain orientation, can only coverage cell internal zone dividing Domain (Class B types).
The PMI that Class A eMIMO-type CSI is reported includes PMI1 and PMI2, and wherein PMI1 includes i1,1And i1,2, i1,1The main beam group of the first dimension is indicated, includes L1Individual wave beam, i1,2The main beam group of the second dimension is indicated, includes L2Individual wave beam；PMI2 Only include i2, indicate from { i1,1,i1,2A wave beam is selected in the wave beam group that forms, and determine co-phase coefficients.For RANK1 (RANK2 scenes are equal), i1,1And i1,2Feedback number depend on (N1, N2), (O1, O2) and (s1, s2).Wherein N1, N2 refers to the first dimension, the second Vc SI-RS port numbers；O1, O2 refer to the first dimension/second and tie up over-sampling rate；(s1, s2) refers to wave beam group Beam separation, determined by the Config of expression antenna configuration scene.And for RANK3 (RANK4 scenes are equal), rank 3-4 There are four parameter { i in code book1,1,i1,2,k,i2, CSI reports three { i' of middle needs1,1,i1,2,i2, and k is used to indicate two For relation between wave number group to construct different orthogonal beams groups, its information is included in i '1,1In：2D antennas are N1＞ 1 and N2＞ 1 When, then k=0,1；If 1D antennas are N2When=1, k=0,1,2, i '1,1And i1,2Feedback number depend on k, (N1, N2) and (O1,O2)。
In LTE R13 versions, the CSI of Class type-As reports CQI+PMI+RI, wherein CQI and PMI2 in same subframe Internal feedback, PMI1 is in a subframe internal feedback, and RI is in a subframe internal feedback.In LTE R14FDMIMO problems, propose a kind of The method for carrying out CSI using CSI-RS is mixed and reporting, that is, utilize the CSI-RS of two different types or same type, different CSI- RS sends out different beams, and using a variety of beam combinations, UE can carry out a variety of CSI and report, and provides more for eNB or more fully believes Channel state information, to improve BF CSI-RS efficiency.Include at least two CSI-RS in one CSI process, second CSI-RS CSI feedback includes whole feedback contents, and first CSI-RS CSI feedback only reported comprising part CSI it is interior Hold, auxiliary adjusts and determines second CSI-RS.One form of which is：First eMIMO-type CSI-RS For CLASS A CSI-RS, CSI is reported only to report content comprising part CSI, specially long-term code book index PMI1 (i1,1 He I1, the long-term code book index of the 2, first dimension and the second long-term code book index of dimension), and the RI of instruction Rank1 scenes or Rank3 scenes (now partly to report, without reporting CQI and PMI2)；Second is CLASS B and K=1CSI-RS, reports CSI to include CQI +PMI+RI.For first eMIMO-type PMI1 and RI, it is desirable to be able to use PUCCH format2 in same subframe Fed back, but the LTE R13 versions of prior art can not support the design.
The content of the invention
In order to solve the problems, such as background technology proposition, the present invention proposes a kind of periodic report CSI method, this method bag Include：
Combinations of the UE to RI and PMI1 carries out combined coding and obtains a combined coding value IRI/PMI1, united code by (N1, N2), (O1, O2) and Config determine that the combined coding value is entered in a subframe using PUCCH format2 forms Row periodic report, wherein, PMI1 includes the first long-term code word number i of dimension1,1With the second long-term code word number i of dimension1,2, N1/N2 is First dimension the/the second dimension antenna port number, O1/O2 are first dimension the/the second dimension over-sampling rate, and Config joins for antenna configuration scene Number；ENB calculates the RI and PMI1 according to the combined coding value of reception and the united code.
When the present invention is given in the case of different antennae port distribution, different over-sampling rates and different Config PMI1 and RI united codes, comprising required feedback bit, the content such as each index instruction content.
The present invention carries out combined coding to RI and PMI1, can be carried with PUCCH format2 in a subframe all RI and PMI1 information, scene is reported suitable for Class A and Class B and K=1 mixing CSI.
Embodiment
, below will be in the embodiment of the present invention to make the purpose, technical scheme and advantage of the embodiment of the present invention clearer Technical scheme be clearly and completely described, it is clear that described embodiment is part of the embodiment of the present invention, rather than Whole embodiments；It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can To be mutually combined.Based on the embodiment in the present invention, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment obtained, belongs to the scope of protection of the invention.
The information acquisition first for the eMIMO-type Class A CSI-RS that UE is configured by high-level signaling is tieed up and the second dimension Antenna port number information (N1, N2), the first dimension and the second dimension over-sampling rate (O1, O2) and antenna configuration scenario parameters Config, the united code determined according to above- mentioned information, the combination to RI and PMI1 carry out combined coding and obtain a connection Compile in collaboration with code value IRI/PMI1, and periodic feedback is carried out using PUCCH format2 forms in a subframe, eNB is according to reception Combined coding value and known united code calculate the RI and PMI1 (comprising the first long-term code word number i of dimension1,1With Two-dimentional long-term code word number i1,2)。
Following several embodiments are listed in the case of different port number, over-sampling rate and Config, and RI is respectively During RANK1 and RANK3, UE carries out the specific method of cycle CSI feedback to eMIMO-type Class A CSI-RS.
Embodiment 1：(N1, N2)=(8,1), the situation of (O1, O2)=(4, -)
(1) if (N1, N2)=(8,1), (O1, O2)=(4, -), Config=1, then UE is to PMI1 and RI progress 7bit's Combined coding, united code are：When RI is 1, combined coding value i1,1, when RI is 3, combined coding value i1,1+ 32.ENB calculates RI and PMI1 according to following table：
(2) if (N1, N2)=(8,1), (O1, O2)=(4, -), Config=2, then UE is to PMI1 and RI progress 6bit's Combined coding, united code are：When RI is 1, combined coding value i1,1, when RI is 3, combined coding value i1,1+ 16.ENB calculates RI and PMI1 according to following table：
(3) if (N1, N2)=(8,1), (O1, O2)=(4, -), Config=3, then UE is to PMI1 and RI progress 5bit's Combined coding, united code are：When RI is 1, combined coding value i1,1, when RI is 3, combined coding value i1,1+ 16.ENB calculates RI and PMI1 according to following table：
(4) if (N1, N2)=(8,1), (O1, O2)=(4, -), Config=4, then UE is to PMI1 and RI progress 6bit's Combined coding, united code are：When RI is 1, combined coding value i1,1, when RI is 3, combined coding value i1,1+ 16.ENB calculates RI and PMI1 according to following table：
Embodiment 2：(N1, N2)=(8,1), the situation of (O1, O2)=(8, -)
(1) Config=1, then UE 8bit combined coding is carried out to PMI1 and RI, united code is：When RI is 1 When, combined coding value i1,1, when RI is 3, combined coding value i1,1+64.ENB calculates RI and PMI1 according to following table：
(2) Config=2, then UE 6bit combined coding is carried out to PMI1 and RI, united code is：When RI is 1 When, combined coding value i1,1, when RI is 3, combined coding value i1,1+32.ENB calculates RI and PMI1 according to following table：
(3) then UE carries out 6bit combined coding to PMI1 and RI to Config=3, and united code is：When RI is 1 When, combined coding value i1,1, when RI is 3, combined coding value i1,1+16.ENB calculates RI and PMI1 according to following table：
(4) then UE carries out 6bit combined coding to PMI1 and RI to Config=4, and united code is：When RI is 1 When, combined coding value i1,1, when RI is 3, combined coding value i1,1+32.ENB calculates RI and PMI1 according to following table：
Embodiment 3：(N1, N2)=(2,2), the situation of (O1, O2)=(4,4)
(1) Config=1, then UE 8bit combined coding is carried out to PMI1 and RI, united code is as shown in the table： RI represents with the 1bit of highest order, i1,2Represented using the 3bit of lowest order, i1,1Represented using the 4bit of centre.
RI(1bit) i1,1(4bit) i1,2(3bit)
ENB calculates RI and PMI1 according to following table：
(2) Config=2, then UE 6bit combined coding is carried out to PMI1 and RI, united code is as shown in the table： RI represents with the 1bit of highest order, i1,2Represented using the 2bit of lowest order, i1,1Represented using the 3bit of centre.
RI(1bit) i1,1(3bit) i1,2(2bit)
ENB calculates RI and PMI1 according to following table：
(3) then UE carries out 5bit combined coding to PMI1 and RI to Config=3, and united code is as shown in the table： RI represents with the 1bit of highest order, i1,2Represented using the 2bit of lowest order, i1,1Represented using the 2bit of centre.
RI(1bit) i1,1(2bit) i1,2(2bit)
ENB calculates RI and PMI1 according to following table：
(4) then UE carries out 6bit combined coding to PMI1 and RI to Config=4, and united code is as shown in the table： RI is represented with the 1bit of highest order.When RI positions are 0, i1,2Represented using the 2bit of lowest order, i1,1Using the 3bit tables of centre Show.When RI positions are 1, i1,2Represented using the 3bit of lowest order, i1,1Represented using the 2bit of centre.
RI=0 (1bit) i1,1(3bit) i1,2(2bit)
RI=1 (1bit) i1,1(2bit) i1,2(3bit)
ENB calculates RI and PMI1 according to following table：
Embodiment 4：(N1, N2)=(2,2), the situation of (O1, O2)=(8,8)
(1) then UE carries out 10bit combined coding to PMI1 and RI to Config=1, and united code is as shown in the table： RI represents with the 1bit of highest order, i1,2Represented using the 4bit of lowest order, i1,1Represented using the 5bit of centre.
RI(1bit) i1,1(5bit) i1,2(4bit)
ENB calculates RI and PMI1 according to following table：
(2) then UE carries out 7bit combined coding to PMI1 and RI to Config=2, and united code is as shown in the table： RI is represented with the 1bit of highest order.When RI positions are 0, i1,2Represented using the 3bit of lowest order, i1,1Using the 3bit tables of centre Show.When RI positions are 1, i1,2Represented using the 2bit of lowest order, i1,1Using with i1,2Adjacent 3bit represents that other 1bit are pre- Stay (or be i1,1Represented using middle 4bit).
RI=0 (1bit) i1,1(3bit) i1,2(3bit)
RI=1 (1bit) i1,1(4bit) i1,2(2bit)
ENB calculates RI and PMI1 according to following table：
(3) then UE carries out 7bit combined coding to PMI1 and RI to Config=3, and united code is as shown in the table： RI is represented with the 1bit of highest order.When RI positions are 0, i1,2Represented using the 3bit of lowest order, i1,1Using the 3bit tables of centre Show.When RI positions are 1, i1,2Represented using the 2bit of lowest order, i1,1Using with i1,2Adjacent 2bit represents that other 2bit are pre- Stay (or be i1,1Represented using middle 4bit).
RI=0 (1bit) i1,1(3bit) i1,2(3bit)
RI=1 (1bit) i1,1(4bit) i1,2(2bit)
ENB calculates RI and PMI1 according to following table：
(4) then UE carries out 7bit combined coding to PMI1 and RI to Config=4, and united code is as shown in the table： RI is represented with the 1bit of highest order.When RI positions are 0, i1,2Represented using the 3bit of lowest order, i1,1Using the 3bit tables of centre Show.When RI positions are 1, i1,2Represented using the 3bit of lowest order, i1,1Using with i1,2Adjacent 2bit represents that other 1bit are pre- Stay (or be i1,1Represented using middle 3bit).
RI=0 (1bit) i1,1(3bit) i1,2(3bit)
RI=1 (1bit) i1,1(3bit) i1,2(3bit)
ENB calculates RI and PMI1 according to following table：
Embodiment 5：(N1, N2)=(2,3), the situation of (O1, O2)=(8,4)
(1) then UE carries out 10bit combined coding to PMI1 and RI to Config=1, and united code is as shown in the table： RI represents with the 1bit of highest order, i1,2Represented using the 4bit of lowest order, i1,1Represented using the 5bit of centre.
RI(1bit) i1,1(5bit) i1,2(4bit)
ENB calculates RI and PMI1 according to following table：
(2) then UE carries out 7bit combined coding to PMI1 and RI to Config=2, and united code is as shown in the table： RI represents with the 1bit of highest order, i1,2Represented using the 3bit of lowest order, i1,1Represented using the 3bit of centre.
RI(1bit) i1,1(3bit) i1,2(3bit)
ENB calculates RI and PMI1 according to following table：
(3) then UE carries out 7bit combined coding to PMI1 and RI to Config=3, and united code is as shown in the table： RI represents with the 1bit of highest order, i1,2Represented using the 3bit of lowest order, i1,1Represented using the 3bit of centre.As RI=1 In the presence of reserved index.
RI(1bit) i1,1(3bit) i1,2(3bit)
ENB calculates RI and PMI1 according to following table：
(4) then UE carries out 7bit combined coding to PMI1 and RI to Config=4, and united code is as shown in the table： RI is represented with the 1bit of highest order.When RI positions are 0, i1,2Represented using the 3bit of lowest order, i1,1Using the 3bit tables of centre Show.When RI positions are 1, i1,2Represented using the 4bit of lowest order, i1,1Represented using middle 2bit.
RI=0 (1bit) i1,1(3bit) i1,2(3bit)
RI=1 (1bit) i1,1(2bit) i1,2(4bit)
ENB calculates RI and PMI1 according to following table：
Embodiment 6：(N1, N2)=(2,3), the situation of (O1, O2)=(8,8)
(1) then UE carries out 11bit combined coding to PMI1 and RI to Config=1, and united code is as shown in the table： RI represents with the 1bit of highest order, i1,2Represented using the 5bit of lowest order, i1,1Represented using the 5bit of centre.
RI(1bit) i1,1(5bit) i1,2(5bit)
ENB calculates RI and PMI1 according to following table：
(2) then UE carries out 8bit combined coding to PMI1 and RI to Config=2, and united code is as shown in the table： RI is represented with the 1bit of highest order.When RI positions are 0, i1,2Represented using the 4bit of lowest order, i1,1Using the 3bit tables of centre Show.When RI positions are 1, i1,2Represented using the 3bit of lowest order, i1,1Using with i1,2Adjacent 3bit represents that other 1bit are pre- Stay (or be i1,1Represented using middle 4bit).
RI=0 (1bit) i1,1(3bit) i1,2(4bit)
RI=1 (1bit) i1,1(4bit) i1,2(3bit)
ENB calculates RI and PMI1 according to following table：
(3) then UE carries out 8bit combined coding to PMI1 and RI to Config=3, and united code is as shown in the table： RI is represented with the 1bit of highest order.When RI positions are 0, i1,2Represented using the 4bit of lowest order, i1,1Using the 3bit tables of centre Show.When RI positions are 1, i1,2Represented using the 3bit of lowest order, i1,1Using with i1,2Adjacent 2bit represents that other 2bit are pre- Stay (or be i1,1Represented using middle 4bit).
RI=0 (1bit) i1,1(3bit) i1,2(4bit)
RI=1 (1bit) i1,1(4bit) i1,2(3bit)
ENB calculates RI and PMI1 according to following table：
(4) then UE carries out 7bit combined coding to PMI1 and RI to Config=4, and united code is as shown in the table： RI represents with the 1bit of highest order, i1,2Represented using the 4bit of lowest order, i1,1Represented using the 3bit of centre.As RI=1 In the presence of reserved index.
RI(1bit) i1,1(3bit) i1,2(4bit)
ENB calculates RI and PMI1 according to following table：
Embodiment 7：(N1, N2)=(3,2), the situation of (O1, O2)=(8,4)
(1) then UE carries out 10bit combined coding to PMI1 and RI to Config=1, and united code is as shown in the table： RI represents with the 1bit of highest order, i1,2Represented using the 3bit of lowest order, i1,1Represented using the 6bit of centre.
RI(1bit) i1,1(6bit) i1,2(3bit)
ENB calculates RI and PMI1 according to following table：
(2) then UE carries out 7bit combined coding to PMI1 and RI to Config=2, and united code is as shown in the table： RI represents with the 1bit of highest order, i1,2Represented using the 2bit of lowest order, i1,1Represented using the 4bit of centre.
RI(1bit) i1,1(4bit) i1,2(2bit)
ENB calculates RI and PMI1 according to following table：
(3) then UE carries out 7bit combined coding to PMI1 and RI to Config=3, and united code is as shown in the table： RI represents with the 1bit of highest order, i1,2Represented using the 2bit of lowest order, i1,1Represented using the 4bit of centre.
RI(1bit) i1,1(4bit) i1,2(2bit)
ENB calculates RI and PMI1 according to following table：
(4) then UE carries out 7bit combined coding to PMI1 and RI to Config=4, and united code is as shown in the table： RI is represented with the 1bit of highest order.When RI positions are 0, i1,2Represented using the 4bit of lowest order, i1,1Represented using middle 2bit. When RI positions are 1, i1,2Represented using the 3bit of lowest order, i1,1Represented using the 3bit of centre.
RI=0 (1bit) i1,1(2bit) i1,2(4bit)
RI=1 (1bit) i1,1(3bit) i1,2(3bit)
ENB calculates RI and PMI1 according to following table：
Embodiment 8：(N1, N2)=(3,2), the situation of (O1, O2)=(4,4)
(1) then UE carries out 9bit combined coding to PMI1 and RI to Config=1, and united code is as shown in the table： RI represents with the 1bit of highest order, i1,2Represented using the 3bit of lowest order, i1,1Represented using the 5bit of centre.
RI(1bit) i1,1(5bit) i1,2(3bit)
ENB calculates RI and PMI1 according to following table：
(2) then UE carries out 7bit combined coding to PMI1 and RI to Config=2, and united code is as shown in the table： RI represents with the 1bit of highest order, i1,2Represented using the 2bit of lowest order, i1,1Represented using the 4bit of centre.
RI(1bit) i1,1(4bit) i1,2(2bit)
ENB calculates RI and PMI1 according to following table：
(3) then UE carries out 6bit combined coding to PMI1 and RI to Config=3, and united code is as shown in the table： RI represents with the 1bit of highest order, i1,2Represented using the 2bit of lowest order, i1,1Represented using the 3bit of centre.
RI(1bit) i1,1(3bit) i1,2(2bit)
ENB calculates RI and PMI1 according to following table：
(4) then UE carries out 7bit combined coding to PMI1 and RI to Config=4, and united code is as shown in the table： RI is represented with the 1bit of highest order.When RI positions are 0, i1,2Represented using the 2bit of lowest order, i1,1Represented using middle 4bit. When RI positions are 1, i1,2Represented using the 3bit of lowest order, i1,1Represented using the 3bit of centre.
RI=0 (1bit) i1,1(3bit) i1,2(2bit)
RI=1 (1bit) i1,1(3bit) i1,2(3bit)
ENB calculates RI and PMI1 according to following table：
Embodiment 9：(N1, N2)=(2,4), the situation of (O1, O2)=(8,4)
Under the situation, the form that UE carries out combined coding to RI and PMI1 is same as Example 5, and eNB calculates RI and PMI1 Method and embodiment 5 it is also identical, it is simple herein to specifically describe.
Embodiment 10：(N1, N2)=(2,4), the situation of (O1, O2)=(8,8)
Under the situation, the form that UE carries out combined coding to RI and PMI1 is same as Example 6, and eNB calculates RI and PMI1 Method and embodiment 5 it is also identical, it is simple herein to specifically describe.
Embodiment 11：(N1, N2)=(4,2), the situation of (O1, O2)=(8,4)
Under the situation, the form that UE carries out combined coding to RI and PMI1 is same as Example 7, and eNB calculates RI and PMI1 Method and embodiment 5 it is also identical, it is simple herein to specifically describe.
Embodiment 12：(N1, N2)=(4,2), the situation of (O1, O2)=(4,4)
Under the situation, the form that UE carries out combined coding to RI and PMI1 is same as Example 8, and eNB calculates RI and PMI1 Method and embodiment 5 it is also identical, it is simple herein to specifically describe.
One of ordinary skill in the art will appreciate that：Realizing all or part of step of above method embodiment can pass through Programmed instruction related hardware is completed, and foregoing program can be stored in a computer read/write memory medium, the program Upon execution, the step of execution includes above method embodiment；And foregoing storage medium includes：ROM, RAM, magnetic disc or light Disk etc. is various can be with the medium of store program codes.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic； And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and Scope.

Claims (10)

  1. A kind of 1. periodic report CSI method, it is characterised in that methods described includes：
    Combinations of the UE to RI and PMI1 carries out combined coding and obtains a combined coding value IRI/PMI1, united code by (N1, N2), (O1, O2) and Config determine that the combined coding value carries out week in a subframe using PUCCH format2 forms Phase reports, wherein, PMI1 includes the first long-term code word number i of dimension1,1With the second long-term code word number i of dimension1,2, N1/N2 first The dimension antenna port number of dimension/the second, O1/O2 are first dimension the/the second dimension over-sampling rate, and Config is antenna configuration scenario parameters；
    ENB calculates the RI and PMI1 according to the combined coding value of reception and the united code.
  2. 2. according to the method for claim 1, it is characterised in that for (N1, N2)=(8,1), (O1, O2)=(4, -) Situation：
    As Config=1, combinations of the UE to RI and PMI1 carries out 7bit combined coding, and the united code is：When When RI is 1, the combined coding value is i1,1, when RI is 3, the combined coding value is i1,1+32；ENB calculates according to following table The RI and PMI1：
    As Config=2, combinations of the UE to RI and PMI1 carries out 6bit combined coding, and the united code is：When When RI is 1, the combined coding value is i1,1, when RI is 3, the combined coding value is i1,1+32；ENB calculates according to following table The RI and PMI1：
    As Config=3, combinations of the UE to RI and PMI1 carries out 5bit combined coding, and the united code is：When When RI is 1, the combined coding value is i1,1, when RI is 3, the combined coding value is i1,1+16；ENB calculates according to following table The RI and PMI1：
    As Config=4, combinations of the UE to RI and PMI1 carries out 6bit combined coding, and the united code is：When When RI is 1, the combined coding value is i1,1, when RI is 3, the combined coding value is i1,1+16；ENB calculates according to following table The RI and PMI1：：
  3. 3. according to the method for claim 1, it is characterised in that for (N1, N2)=(8,1), (O1, O2)=(8, -) Situation：
    As Config=1, combinations of the UE to RI and PMI1 carries out 8bit combined coding, and the united code is：When When RI is 1, the combined coding value is i1,1, when RI is 3, the combined coding value is i1,1+64；ENB calculates according to following table The RI and PMI1：
    As Config=2, combinations of the UE to RI and PMI1 carries out 6bit combined coding, and the united code is：When When RI is 1, the combined coding value is i1,1, when RI is 3, the combined coding value is i1,1+32；ENB calculates according to following table The RI and PMI1：
    As Config=3, combinations of the UE to RI and PMI1 carries out 6bit combined coding, and the united code is：When When RI is 1, the combined coding value is i1,1, when RI is 3, the combined coding value is i1,1+16；ENB calculates according to following table The RI and PMI1：
    As Config=4, combinations of the UE to RI and PMI1 carries out 6bit combined coding, and the united code is：When When RI is 1, the combined coding value is i1,1, when RI is 3, the combined coding value is i1,1+32；ENB calculates according to following table The RI and PMI1：
  4. 4. according to the method for claim 1, it is characterised in that for (N1, N2)=(2,2), (O1, O2)=(4,4) Situation：
    As Config=1, combinations of the UE to RI and PMI1 carries out 8bit combined coding, and the united code is：Institute The highest 1bit positions instruction RI of combined coding value is stated, minimum 3bit positions are i1,2, middle 4bit positions are i1,1；ENB is according to following table Calculate the RI and PMI1：
    As Config=2, combinations of the UE to RI and PMI1 carries out 6bit combined coding, and the united code is：Institute The highest 1bit positions instruction RI of combined coding value is stated, minimum 2bit positions are i1,2, middle 3bit positions are i1,1；ENB is according to following table Calculate the RI and PMI1：
    As Config=3, combinations of the UE to RI and PMI1 carries out 5bit combined coding, and the united code is：Institute The highest 1bit positions instruction RI of combined coding value is stated, minimum 2bit positions are i1,2, middle 2bit positions are i1,1；ENB is according to following table Calculate the RI and PMI1：
    As Config=4, combinations of the UE to RI and PMI1 carries out 6bit combined coding, and the united code is：Institute The highest 1bit positions instruction RI of combined coding value is stated, when RI is 0, minimum 2bit positions are i1,2, middle 3bit positions are i1,1, when When RI is 1, minimum 3bit positions are i1,2, middle 2bit positions are i1,1；ENB calculates the RI and PMI1 according to following table：
  5. 5. according to the method for claim 1, it is characterised in that for (N1, N2)=(2,2), (O1, O2)=(8,8) Situation：
    As Config=1, combinations of the UE to RI and PMI1 carries out 10bit combined coding, and the united code is：Institute The highest 1bit positions instruction RI of combined coding value is stated, minimum 4bit positions are i1,2, middle 5bit positions are i1,1；ENB is according to following table Calculate the RI and PMI1：
    As Config=2, combinations of the UE to RI and PMI1 carries out 7bit combined coding, and the united code is：Institute The highest 1bit positions instruction RI of combined coding value is stated, when RI is 0, minimum 3bit positions are i1,2, middle 3bit positions are i1,1, when When RI is 1, minimum 2bit positions are i1,2, with i1,2Adjacent middle 3bit is i1,1And other 1bit are reserved；ENB is according to following table Calculate the RI and PMI1：
    As Config=3, combinations of the UE to RI and PMI1 carries out 7bit combined coding, and the united code is：Institute The highest 1bit positions instruction RI of combined coding value is stated, when RI is 0, minimum 3bit positions are i1,2, middle 3bit positions are i1,1, when When RI is 1, minimum 2bit positions are i1,2, with i1,2Adjacent middle 2bit is i1,1And other 2bit are reserved；ENB is according to following table Calculate the RI and PMI1：
    As Config=4, combinations of the UE to RI and PMI1 carries out 7bit combined coding, and the united code is：Institute The highest 1bit positions instruction RI of combined coding value is stated, when RI is 0, minimum 3bit positions are i1,2, middle 3bit positions are i1,1, when When RI is 1, minimum 3bit positions are i1,2, with i1,2Adjacent middle 2bit is i1,1And other 1bit are reserved；ENB is according to following table Calculate the RI and PMI1：
  6. 6. according to the method for claim 1, it is characterised in that for (N1, N2)=(2,3), (O1, O2)=(8,4) or Person (N1, N2)=(2,4), the situation of (O1, O2)=(8,4)：
    As Config=1, combinations of the UE to RI and PMI1 carries out 10bit combined coding, and the united code is：Institute The highest 1bit positions instruction RI of combined coding value is stated, minimum 4bit positions are i1,2, middle 5bit positions are i1,1；ENB is according to following table Calculate the RI and PMI1：
    As Config=2, combinations of the UE to RI and PMI1 carries out 7bit combined coding, and the united code is：Institute The highest 1bit positions instruction RI of combined coding value is stated, minimum 3bit positions are i1,2, middle 3bit positions are i1,1；ENB is according to following table Calculate the RI and PMI1：
    As Config=3, combinations of the UE to RI and PMI1 carries out 7bit combined coding, and the united code is：Institute The highest 1bit positions instruction RI of combined coding value is stated, minimum 3bit positions are i1,2, middle 3bit positions are i1,1；ENB is according to following table Calculate the RI and PMI1：
    As Config=4, combinations of the UE to RI and PMI1 carries out 7bit combined coding, and the united code is：Institute The highest 1bit positions instruction RI of combined coding value is stated, when RI is 0, minimum 3bit positions are i1,2, middle 3bit positions are i1,1, when When RI is 1, minimum 4bit positions are i1,2, middle 2bit positions are i1,1；ENB calculates the RI and PMI1 according to following table：
  7. 7. according to the method for claim 1, it is characterised in that for (N1, N2)=(2,3), (O1, O2)=(8,8) or Person (N1, N2)=(2,4), the situation of (O1, O2)=(8,8)：
    As Config=1, combinations of the UE to RI and PMI1 carries out 11bit combined coding, and the united code is：Institute The highest 1bit positions instruction RI of combined coding value is stated, minimum 5bit positions are i1,2, middle 5bit positions are i1,1；ENB is according to following table Calculate the RI and PMI1：
    As Config=2, combinations of the UE to RI and PMI1 carries out 8bit combined coding, and the united code is：Institute The highest 1bit positions instruction RI of combined coding value is stated, when RI is 0, minimum 4bit positions are i1,2, middle 3bit positions are i1,1, when When RI is 1, minimum 3bit positions are i1,2, with i1,2Adjacent middle 3bit is i1,1And other 1bit are reserved；ENB is according to following table Calculate the RI and PMI1：
    As Config=3, combinations of the UE to RI and PMI1 carries out 8bit combined coding, and the united code is：Institute The highest 1bit positions instruction RI of combined coding value is stated, when RI is 0, minimum 4bit positions are i1,2, middle 3bit positions are i1,1, when When RI is 1, minimum 3bit positions are i1,2, with i1,2Adjacent middle 2bit is i1,1And other 2bit are reserved；ENB is according to following table Calculate the RI and PMI1：
    As Config=4, combinations of the UE to RI and PMI1 carries out 7bit combined coding, and the united code is：Institute The highest 1bit positions instruction RI of combined coding value is stated, minimum 4bit positions are i1,2, middle 3bit positions are i1,1；ENB is according to following table Calculate the RI and PMI1：
  8. 8. according to the method for claim 1, it is characterised in that for (N1, N2)=(3,2), (O1, O2)=(8,4) or Person (N1, N2)=(4,2), the situation of (O1, O2)=(8,4)：
    As Config=1, combinations of the UE to RI and PMI1 carries out 10bit combined coding, and the united code is：Institute The highest 1bit positions instruction RI of combined coding value is stated, minimum 3bit positions are i1,2, middle 6bit positions are i1,1；ENB is according to following table Calculate the RI and PMI1：
    As Config=2, combinations of the UE to RI and PMI1 carries out 7bit combined coding, and the united code is：Institute The highest 1bit positions instruction RI of combined coding value is stated, minimum 2bit positions are i1,2, middle 4bit positions are i1,1；ENB is according to following table Calculate the RI and PMI1：
    As Config=3, combinations of the UE to RI and PMI1 carries out 7bit combined coding, and the united code is：Institute The highest 1bit positions instruction RI of combined coding value is stated, minimum 2bit positions are i1,2, middle 4bit positions are i1,1；ENB is according to following table Calculate the RI and PMI1：
    As Config=4, combinations of the UE to RI and PMI1 carries out 7bit combined coding, and the united code is：Institute The highest 1bit positions instruction RI of combined coding value is stated, when RI is 0, minimum 4bit positions are i1,2, middle 2bit positions are i1,1, when When RI is 1, minimum 3bit positions are i1,2, middle 3bit positions are i1,1；ENB calculates the RI and PMI1 according to following table：
  9. 9. according to the method for claim 1, it is characterised in that for (N1, N2)=(3,2), (O1, O2)=(4,4) or Person (N1, N2)=(4,2), the situation of (O1, O2)=(4,4)：
    As Config=1, combinations of the UE to RI and PMI1 carries out 9bit combined coding, and the united code is：Institute The highest 1bit positions instruction RI of combined coding value is stated, minimum 3bit positions are i1,2, middle 5bit positions are i1,1；ENB is according to following table Calculate the RI and PMI1：
    As Config=2, combinations of the UE to RI and PMI1 carries out 7bit combined coding, and the united code is：Institute The highest 1bit positions instruction RI of combined coding value is stated, minimum 2bit positions are i1,2, middle 4bit positions are i1,1；ENB is according to following table Calculate the RI and PMI1：
    As Config=3, combinations of the UE to RI and PMI1 carries out 6bit combined coding, and the united code is：Institute The highest 1bit positions instruction RI of combined coding value is stated, minimum 2bit positions are i1,2, middle 3bit positions are i1,1；ENB is according to following table Calculate the RI and PMI1：
    As Config=4, combinations of the UE to RI and PMI1 carries out 7bit combined coding, and the united code is：Institute The highest 1bit positions instruction RI of combined coding value is stated, when RI is 0, minimum 2bit positions are i1,2, middle 4bit positions are i1,1, when When RI is 1, minimum 3bit positions are i1,2, middle 3bit positions are i1,1；ENB calculates the RI and PMI1 according to following table：
  10. 10. according to the method described in claim 1~9 any one, it is characterised in that：
    Methods described is used for CLASSA and Class B and K=1 mixing CSI reports scene.
CN201610861475.9A 2016-09-28 2016-09-28 A kind of periodic report CSI method Withdrawn CN107872294A (en)

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