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1. 发明申请

US20160065292A1 CODEBOOK FEEDBACK METHOD AND APPARATUS FOR MULTIPLE-ANTENNA CHANNEL IN MIMO SYSTEM 有权
标题翻译： MIMO系统中多天线通道的CODEBOOK反馈方法及装置
公开(公告)号：US20160065292A1
公开(公告)日：2016-03-03
申请号：US14888248
申请日：2014-03-18
申请人： ALCATEL LUCENT
发明人： Hao Liu , Lu Wu , Min Zhang
IPC分类号： H04B7/06 , H04L27/26
CPC分类号： H04B7/0639 , H04B7/0617 , H04B7/0626 , H04L27/2636
摘要： A codebook feedback method and apparatus for a multiple-antenna channel in a Multiple Input Multiple Output (MIMO) system are provided. In an embodiment, a method (20) includes: detecting (21) a downlink multiple-antenna channel; determining (22) a first codeword in a first level codebook corresponding to the rank of R, where any codeword in the first level codebook is four diagonal matrices, two same 2×C block matrices exist on a diagonal line, and C column vectors of the 2×C block matrix are selected from Q1 discrete Fourier transform (DFT) beam vectors; feeding back (23) an index of the first codeword; determining (24) a second codeword in a second level codebook corresponding to the rank of R, where any codeword in the second level codebook is a 2C×R matrix, each column of the 2C×R matrix is formed of one C×1 beam selection vector and one C×1 beam selection vector including phase offset information; and feeding back (25) an index of the second codeword. The foregoing solution introduces an orthogonal DFT beam selection in two-level codebook index feedback, and therefore becomes more suitable for an MIMO application of a cross-polarized configuration of four downlink transmit antennas.
摘要翻译：提供了一种用于多输入多输出（MIMO）系统中的多天线信道的码本反馈方法和装置。在一个实施例中，一种方法（20）包括：检测（21）下行链路多天线信道; 确定（22）对应于R的秩的第一级码本中的第一码字，其中第一级码本中的任何码字是四个对角矩阵，在对角线上存在两个相同的2×C块矩阵，并且C列向量从Q1离散傅里叶变换（DFT）波束向量中选择2×C块矩阵; 反馈（23）第一码字的索引; 确定（24）对应于R的等级的第二级码本中的第二码字，其中第二级码本中的任何码字是2C×R矩阵，2C×R矩阵的每列由一个C×1波束形成选择矢量和一个包括相位偏移信息的C×1波束选择矢量; 并反馈（25）第二码字的索引。上述解决方案在二电平码本索引反馈中引入正交DFT波束选择，因此变得更适合于四个下行链路发射天线的交叉极化配置的MIMO应用。

2. 发明申请

US20150358066A1 METHOD OF DETERMINING TWO-STAGE CODEBOOK SET APPLICABLE TO 4TX CROSS-POLARIZED ANTENNA CONFIGURATION 有权
标题翻译：确定适用于4TX交叉极化天线配置的两阶段编码方法
公开(公告)号：US20150358066A1
公开(公告)日：2015-12-10
申请号：US14761736
申请日：2014-01-13
申请人： Alcatel Lucent
发明人： Hao Liu , Lu Wu , Min Zhang
IPC分类号： H04B7/06 , H04B7/10 , H04B7/04
CPC分类号： H04B7/0634 , H04B7/0417 , H04B7/0452 , H04B7/0639 , H04B7/065 , H04B7/10
摘要： The invention provides a solution of designing a two-stage codebook set applicable to 4Tx cross-polarized antenna configuration and a method of determining a codebook in a multi-input multi-output communication system based upon the designed two-stage codebook set applicable to 4Tx cross-polarized antenna configuration. The first stage codebook relates long-term/wideband channel information and is based on DFT vectors, whereas the second stage codebook relates to short-term/narrowband channel information and is base on selecting columns of the first stage codebook and providing inter-polarization phase information.
摘要翻译：本发明提供了一种设计适用于4Tx交叉极化天线配置的两级码本集合的解决方案，以及基于所设计的适用于4Tx的两阶段码本集合，在多输入多输出通信系统中确定码本的方法交叉极化天线配置。第一级码本涉及长期/宽带信道信息并且基于DFT向量，而第二级码本涉及短期/窄带信道信息，并且基于选择第一级码本的列并提供极间相位信息。

3. 发明授权

US09621244B2 Method and apparatus for quantizing channel state information 有权
公开(公告)号：US09621244B2
公开(公告)日：2017-04-11
申请号：US14782818
申请日：2013-04-07
申请人： Alcatel Lucent
发明人： Hao Liu , Lu Wu
IPC分类号： H04L1/02 , H04W72/06 , H04B7/04 , H04B7/0456 , H04B7/06
CPC分类号： H04B7/0486 , H04B7/0456 , H04B7/0469 , H04B7/0478 , H04B7/0639 , H04B7/065
摘要： The present invention relates to a method and an apparatus for quantizing channel state information (CSI). An embodiment of the present invention provides a method for providing codeword index information to a base station configured with Nt directional antennas, including: determining a first codeword in a first codebook whose rank is r, where r=1, 2, . . . , Nt, and sending an index of the codeword to the base station; and determining a second codeword in a second codebook whose rank is r, and sending an index of the codeword to the base station. The first codeword is a block diagonal matrix, and a matrix on a diagonal block of the block diagonal matrix is a matrix with Nt/2 rows and Nb columns. The Nb columns are Nb different Discrete Fourier Transform (DFT) vectors arbitrarily selected from N predefined DFT vectors, N is an integer power of 2, 1≦Nb≦N, and the length of each DFT vector is Nt. Each column corresponding to each data stream in the second codeword includes an equal-length column selection vector for individually selecting from the Nb columns in the first codeword the DFT vectors used in two polarization directions and co-phasing information θ=2πm/M between the two polarization directions, where M is an integer power of 2, and 0≦m≦M−1.

4. 发明授权

US09680551B2 Method of determining two-stage codebook set applicable to 4TX cross-polarized antenna configuration 有权
公开(公告)号：US09680551B2
公开(公告)日：2017-06-13
申请号：US14761736
申请日：2014-01-13
申请人： Alcatel Lucent
发明人： Hao Liu , Lu Wu , Min Zhang
IPC分类号： H04B7/06 , H04B7/10 , H04B7/04 , H04B7/0452 , H04B7/0417
CPC分类号： H04B7/0634 , H04B7/0417 , H04B7/0452 , H04B7/0639 , H04B7/065 , H04B7/10
摘要： The invention provides a solution of designing a two-stage codebook set applicable to 4Tx cross-polarized antenna configuration and a method of determining a codebook in a multi-input multi-output communication system based upon the designed two-stage codebook set applicable to 4Tx cross-polarized antenna configuration. The first stage codebook relates long-term/wideband channel information and is based on DFT vectors, whereas the second stage codebook relates to short-term/narrowband channel information and is base on selecting columns of the first stage codebook and providing inter-polarization phase information.

5. 发明授权

US09496941B2 Codebook feedback method and apparatus for multiple-antenna channel in MIMO system 有权
标题翻译： MIMO系统中多天线信道的码本反馈方法及装置
公开(公告)号：US09496941B2
公开(公告)日：2016-11-15
申请号：US14888248
申请日：2014-03-18
申请人： Alcatel Lucent
发明人： Hao Liu , Lu Wu , Min Zhang
IPC分类号： H04B7/06 , H04L27/26
CPC分类号： H04B7/0639 , H04B7/0617 , H04B7/0626 , H04L27/2636
摘要： A codebook feedback method and apparatus for a multiple-antenna channel in a Multiple Input Multiple Output (MIMO) system are provided. In an embodiment, a method (20) includes: detecting (21) a downlink multiple-antenna channel; determining (22) a first codeword in a first level codebook corresponding to the rank of R, where any codeword in the first level codebook is four diagonal matrices, two same 2×C block matrices exist on a diagonal line, and C column vectors of the 2×C block matrix are selected from Q1 discrete Fourier transform (DFT) beam vectors; feeding back (23) an index of the first codeword; determining (24) a second codeword in a second level codebook corresponding to the rank of R, where any codeword in the second level codebook is a 2C×R matrix, each column of the 2C×R matrix is formed of one C×1 beam selection vector and one C×1 beam selection vector including phase offset information; and feeding back (25) an index of the second codeword. The foregoing solution introduces an orthogonal DFT beam selection in two-level codebook index feedback, and therefore becomes more suitable for an MIMO application of a cross-polarized configuration of four downlink transmit antennas.
摘要翻译：提供了一种用于多输入多输出（MIMO）系统中的多天线信道的码本反馈方法和装置。在一个实施例中，一种方法（20）包括：检测（21）下行链路多天线信道; 确定（22）对应于R的秩的第一级码本中的第一码字，其中第一级码本中的任何码字是四个对角矩阵，在对角线上存在两个相同的2×C块矩阵，并且C列向量从Q1离散傅里叶变换（DFT）波束向量中选择2×C块矩阵; 反馈（23）第一码字的索引; 确定（24）对应于R的等级的第二级码本中的第二码字，其中第二级码本中的任何码字是2C×R矩阵，2C×R矩阵的每列由一个C×1波束形成选择矢量和一个包括相位偏移信息的C×1波束选择矢量; 并反馈（25）第二码字的索引。上述解决方案在二电平码本索引反馈中引入正交DFT波束选择，因此变得更适合于四个下行链路发射天线的交叉极化配置的MIMO应用。

6. 发明申请

US20160065283A1 METHOD AND APPARATUS FOR QUANTIZING CHANNEL STATE INFORMATION 有权
标题翻译：用于量化信道状态信息的方法和装置
公开(公告)号：US20160065283A1
公开(公告)日：2016-03-03
申请号：US14782818
申请日：2013-04-07
申请人： ALCATEL LUCENT
发明人： Hao Liu , Lu Wu
IPC分类号： H04B7/04
CPC分类号： H04B7/0486 , H04B7/0456 , H04B7/0469 , H04B7/0478 , H04B7/0639 , H04B7/065
摘要： The present invention relates to a method and an apparatus for quantizing channel state information (CSI). An embodiment of the present invention provides a method for providing codeword index information to a base station configured with Nt directional antennas, including: determining a first codeword in a first codebook whose rank is r, where r=1, 2, . . . , Nt, and sending an index of the codeword to the base station; and determining a second codeword in a second codebook whose rank is r, and sending an index of the codeword to the base station. The first codeword is a block diagonal matrix, and a matrix on a diagonal block of the block diagonal matrix is a matrix with Nt/2 rows and Nb columns. The Nb columns are Nb different Discrete Fourier Transform (DFT) vectors arbitrarily selected from N predefined DFT vectors, N is an integer power of 2, 1≦Nb≦N, and the length of each DFT vector is Nt. Each column corresponding to each data stream in the second codeword includes an equal-length column selection vector for individually selecting from the Nb columns in the first codeword the DFT vectors used in two polarization directions and co-phasing information θ=2πm/M between the two polarization directions, where M is an integer power of 2, and 0≦m≦M−1.
摘要翻译：本发明涉及用于量化信道状态信息（CSI）的方法和装置。本发明的实施例提供了一种用于向配置有Nt个定向天线的基站提供码字索引信息的方法，包括：确定秩为r的第一码本中的第一码字，其中r = 1,2。。。 Nt，并将码字的索引发送到基站; 以及确定秩为r的第二码本中的第二码字，并将所述码字的索引发送到所述基站。第一码字是块对角矩阵，块对角矩阵的对角块上的矩阵是具有Nt / 2行和Nb列的矩阵。 Nb列是从N个预定DFT向量中任意选择的Nb不同的离散傅里叶变换（DFT）向量，N是2,1＆nlE; Nb＆nlE; N的整数幂，每个DFT向量的长度为Nt。与第二码字中的每个数据流对应的每列包括用于从第一码字中的Nb列单独选择在两个偏振方向上使用的DFT矢量和同相信息的等长列选择矢量; = 2＆pgr; m / M在两个极化方向之间，其中M是2的整数幂，0＆nlE; m＆nlE; M-1。

7. 发明申请

US20140177749A1 METHOD OF DESIGNING CODEBOOK FOR 3D ANTENNA CONFIGURATION 有权
标题翻译：设计3D天线配置的代码的方法
公开(公告)号：US20140177749A1
公开(公告)日：2014-06-26
申请号：US14239066
申请日：2012-08-14
申请人： ALCATEL LUCENT
发明人： Lu Wu , Hongwei Yang
IPC分类号： H04L25/03 , H04B7/06
CPC分类号： H04L25/0391 , H04B7/0469 , H04B7/0617 , H04B7/0639 , H04L25/03923
摘要： The invention relates to a method of designing a codebook for a 3D antenna configuration, the method including the steps of: selecting a first codeword characterizing a first antenna array in the 3D antenna configuration from a first codebook; selecting a second codeword characterizing a second antenna array in the 3D antenna configuration from a second codebook; and obtaining a corresponding codeword in the codebook for the 3D antenna configuration by multiplying the first codeword with the second codeword. The solution of the invention has the advantage of being simple in design and can make use of existing LTE Rel-10 codebooks and thus have the advantage of good compatibility.
摘要翻译：本发明涉及一种设计3D天线配置码本的方法，所述方法包括以下步骤：从第一码本中选择表征3D天线配置中的第一天线阵列的第一码字; 从第二码本中选择表征3D天线配置中的第二天线阵列的第二码字; 以及通过将第一码字与第二码字相乘来获得用于3D天线配置的码本中的对应码字。本发明的解决方案具有设计简单的优点，可以利用现有的LTE Rel-10码本，具有良好的兼容性。

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