公开(公告)号：US20120307935A1

公开(公告)日：2012-12-06

申请号：US13577669

申请日：2011-01-31

申请人： Ranran Zhang ,  Deshan Miao ,  Qiubin Gao ,  Meifang Jing ,  Rakesh Tamrakar

发明人： Ranran Zhang ,  Deshan Miao ,  Qiubin Gao ,  Meifang Jing ,  Rakesh Tamrakar

IPC分类号： H04L27/00

CPC分类号： H04B7/0639 ,  H04B7/0417 ,  H04B7/0465 ,  H04B7/0469 ,  H04B7/0478 ,  H04L25/03343

摘要： The present invention discloses a method for transmitting information in a closed loop multiple antenna system. The method includes that: a transmission apparatus receives information transmitted from a reception apparatus, wherein the information includes codeword index information; the transmission apparatus selects a corresponding codeword from a double-layer-structure-based codebook according to the codeword index information; the transmission apparatus generates a precoding matrix according to the selected codeword; the transmission apparatus performs precoding for data to be transmitted according to the precoding matrix; the transmission apparatus transmits the precoded data to the reception apparatus. The present invention can enable a formed and used codebook to match channel distribution characteristic of a dual-polarized antenna as much as possible, and minimize performance loss brought by codebook quantization, thereby performance of a precoding system can be effectively improved.

摘要翻译： 本发明公开了一种在闭环多天线系统中发送信息的方法。 该方法包括：发送装置接收从接收装置发送的信息，其中信息包括码字索引信息; 发送装置根据码字索引信息从基于双层结构的码本中选择对应的码字; 发送装置根据所选择的码字生成预编码矩阵; 发送装置根据预编码矩阵对要发送的数据进行预编码; 发送装置将预编码数据发送到接收装置。 本发明可以使得形成和使用的码本尽可能地匹配双极化天线的信道分布特性，并且最小化码本量化带来的性能损失，从而可以有效地提高预编码系统的性能。

公开(公告)号：US20140029463A1

公开(公告)日：2014-01-30

申请号：US14002113

申请日：2011-11-08

申请人： Xin Su ,  Qiubin Gao ,  Rakesh Tamrakar ,  Zukang Shen ,  Shaohui Sun

发明人： Xin Su ,  Qiubin Gao ,  Rakesh Tamrakar ,  Zukang Shen ,  Shaohui Sun

IPC分类号： H04W24/10

CPC分类号： H04W24/10 ,  H04B7/0671 ,  H04B7/0689 ,  H04B7/0697 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/003 ,  H04L1/06 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0094

摘要： Disclosed are a method for reporting channel quality information and a device thereof, the method comprising: according to configuration information of a CSI-RS, a user equipment measuring the CSI-RS to acquire a downlink channel transmission matrix; according to a PDSCH transmission scheme used as a basis when determining a Channel Quality Indicator (CQI), and according to the measured downlink channel transmission matrix, the user equipment determining the CQI of a frequency domain reporting unit; and the user equipment reporting the determined CQI to a network side. Through the present invention, the measurement and reporting of the channel quality information based on the CSI-RS is implemented based on transmission of non-PMI feedback.

摘要翻译： 公开了一种用于报告信道质量信息的方法及其装置，所述方法包括：根据CSI-RS的配置信息，测量CSI-RS的用户设备以获取下行链路信道传输矩阵; 根据在确定信道质量指示符（CQI）时作为基础的PDSCH传输方式，根据所测量的下行链路信道传输矩阵，确定频域报告单元的CQI的用户设备; 以及将所确定的CQI报告给网络侧的用户设备。 通过本发明，基于CSI-RS的信道质量信息的测量和报告是基于非PMI反馈的传输来实现的。

公开(公告)号：US20140016496A1

公开(公告)日：2014-01-16

申请号：US14002106

申请日：2011-10-13

申请人： Xin Su ,  Qiubin Gao ,  Rakesh Tamrakar ,  Zukang Shen ,  Shaohui Sun

发明人： Xin Su ,  Qiubin Gao ,  Rakesh Tamrakar ,  Zukang Shen ,  Shaohui Sun

IPC分类号： H04W24/10

CPC分类号： H04W24/10 ,  H04B7/0626 ,  H04B7/0632 ,  H04L1/0026 ,  H04L1/20

摘要： A method and a device for reporting channel quality information are provided by the present invention, the method comprising that: measuring, by a user equipment (UE), Channel State Information-Reference Signal (CSI-RS) according to the configuration information of the CSI-RS, to acquire a downlink channel transport matrix (101); determining, by the UE, Channel Quality Indicator (CQI) of a frequency domain reporting unit according to the number of CSI-RS ports and the corresponding transmission scheme of the Physical Downlink Shared Channel (PDSCH) used when determining the CQI, and the downlink channel transport matrix acquired by measurement (102); reporting, by the UE, the determined CQI to network side (103). The present invention can realize measurement and reporting of CSI-RS-based channel quality information on the basis of non-Precoding Matrix Indicator (PMI) feedback transmissions.

摘要翻译： 本发明提供一种用于报告信道质量信息的方法和装置，所述方法包括：通过用户设备（UE）根据所述信道质量信息的配置信息测量信道状态信息参考信号（CSI-RS） CSI-RS，以获取下行链路信道传输矩阵（101）; 由UE根据CSI-RS端口的数量和在确定CQI时使用的物理下行链路共享信道（PDSCH）的相应传输方案，确定频域报告单元的信道质量指示符（CQI），以及下行链路 通过测量（102）获取的信道传输矩阵; 由所述UE向所述网络侧报告所确定的CQI。 本发明可以基于非预编码矩阵指示（PMI）反馈传输来实现基于CSI-RS的信道质量信息的测量和报告。

公开(公告)号：US09363700B2

公开(公告)日：2016-06-07

申请号：US13991152

申请日：2011-11-30

申请人： Xin Su ,  Qiubin Gao ,  Rakesh Tamrakar ,  Zukang Shen

发明人： Xin Su ,  Qiubin Gao ,  Rakesh Tamrakar ,  Zukang Shen

IPC分类号： H04L1/00 ,  H04L12/26 ,  H04L12/28 ,  H04W24/10 ,  H04B7/04 ,  H04B7/06

CPC分类号： H04W24/10 ,  H04B7/0417 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04L1/0026

摘要： There is disclosed method for reporting channel state so as to report channel state based upon CSI-RS. The method includes: a UE detecting configuration information of Channel State Information-Reference Signal (CSI-RS), determining according to detection result the number of ports required to report channel state based upon CSI-RS, the UE determining CSI-RS based PMI feedback scheme to be adopted in preset corresponding relationship between the number of ports and feedback scheme upon determining that the eNB is to map data of Physical Downlink Shared Channel (PDSCH) onto P (number) CSI-RS ports for transmission in a codebook-based precoding scheme, wherein the codebook-based precoding scheme is a scheme as represented in the formula of [ y ( 0 ) ⋮ y ( P - 1 ) ] = W · s , wherein W represents a codebook consisted of a precoding matrix, S is PDSCH data consisted of data layers whose quantity is equal to value of Rank Indication (RI) and   [ y ( 0 ) ⋮ y ( P - 1 ) ] represents a vector consisted of data on P (number) CSI-RS ports; and the UE calculating and reporting channel state information according to the determination result. The invention further discloses apparatus for performing the method.

摘要翻译： 公开了用于报告信道状态以便基于CSI-RS报告信道状态的方法。 该方法包括：UE检测信道状态信息参考信号（CSI-RS）的配置信息，根据检测结果确定基于CSI-RS报告信道状态所需的端口数，UE确定基于CSI-RS的PMI 在确定eNB将物理下行链路共享信道（PDSCH）的数据映射到基于码本的P（号码）CSI-RS端口上的数据之后，在端口数和反馈方案之间预设的对应关系中采用的反馈方案 预编码方案，其中基于码本的预编码方案是如[y（0）⋮y（P-1）] = W·s的公式所示的方案，其中W表示由预编码矩阵组成的码本，S是 PDSCH数据由数量等于等级指示值（RI）和[y（0）⋮y（P-1）]的数据层组成，表示由P（个数）CSI-RS端口上的数据组成的向量; 并且UE根据确定结果来计算和报告信道状态信息。 本发明还公开了用于执行该方法的装置。

公开(公告)号：US08855229B2

公开(公告)日：2014-10-07

申请号：US13577669

申请日：2011-01-31

申请人： Ranran Zhang ,  Deshan Miao ,  Qiubin Gao ,  Meifang Jing ,  Rakesh Tamrakar

发明人： Ranran Zhang ,  Deshan Miao ,  Qiubin Gao ,  Meifang Jing ,  Rakesh Tamrakar

IPC分类号： H04L27/00 ,  H04B7/06 ,  H04B7/04 ,  H04L25/03

CPC分类号： H04B7/0639 ,  H04B7/0417 ,  H04B7/0465 ,  H04B7/0469 ,  H04B7/0478 ,  H04L25/03343

摘要： The present invention discloses a method for transmitting information in a closed loop multiple antenna system. The method includes that: a transmission apparatus receives information transmitted from a reception apparatus, wherein the information includes codeword index information; the transmission apparatus selects a corresponding codeword from a double-layer-structure-based codebook according to the codeword index information; the transmission apparatus generates a precoding matrix according to the selected codeword; the transmission apparatus performs precoding for data to be transmitted according to the precoding matrix; the transmission apparatus transmits the precoded data to the reception apparatus. The present invention can enable a formed and used codebook to match channel distribution characteristic of a dual-polarized antenna as much as possible, and minimize performance loss brought by codebook quantization, thereby performance of a precoding system can be effectively improved.

摘要翻译： 本发明公开了一种在闭环多天线系统中发送信息的方法。 该方法包括：发送装置接收从接收装置发送的信息，其中信息包括码字索引信息; 发送装置根据码字索引信息从基于双层结构的码本中选择对应的码字; 发送装置根据所选择的码字生成预编码矩阵; 发送装置根据预编码矩阵对要发送的数据进行预编码; 发送装置将预编码数据发送到接收装置。 本发明可以使得形成和使用的码本尽可能地匹配双极化天线的信道分布特性，并且最小化码本量化带来的性能损失，从而可以有效地提高预编码系统的性能。

公开(公告)号：US09936410B2

公开(公告)日：2018-04-03

申请号：US14002106

申请日：2011-10-13

申请人： Xin Su ,  Qiubin Gao ,  Rakesh Tamrakar ,  Zukang Shen ,  Shaohui Sun

发明人： Xin Su ,  Qiubin Gao ,  Rakesh Tamrakar ,  Zukang Shen ,  Shaohui Sun

IPC分类号： H04W24/10 ,  H04B7/06 ,  H04L1/00 ,  H04L1/20

CPC分类号： H04W24/10 ,  H04B7/0626 ,  H04B7/0632 ,  H04L1/0026 ,  H04L1/20

摘要： A method and a device for reporting channel quality information are provided by the present invention, the method comprising that: measuring, by a user equipment (UE), Channel State Information-Reference Signal (CSI-RS) according to the configuration information of the CSI-RS, to acquire a downlink channel transport matrix (101); determining, by the UE, Channel Quality Indicator (CQI) of a frequency domain reporting unit according to the number of CSI-RS ports and the corresponding transmission scheme of the Physical Downlink Shared Channel (PDSCH) used when determining the CQI, and the downlink channel transport matrix acquired by measurement (102); reporting, by the UE, the determined CQI to network side (103). The present invention can realize measurement and reporting of CSI-RS-based channel quality information on the basis of non-Precoding Matrix Indicator (PMI) feedback transmissions.

公开(公告)号：US09872190B2

公开(公告)日：2018-01-16

申请号：US14002113

申请日：2011-11-08

申请人： Xin Su ,  Qiubin Gao ,  Rakesh Tamrakar ,  Zukang Shen ,  Shaohui Sun

发明人： Xin Su ,  Qiubin Gao ,  Rakesh Tamrakar ,  Zukang Shen ,  Shaohui Sun

IPC分类号： H04W24/10 ,  H04L1/06 ,  H04L5/00 ,  H04L1/00 ,  H04B7/06

CPC分类号： H04W24/10 ,  H04B7/0671 ,  H04B7/0689 ,  H04B7/0697 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/003 ,  H04L1/06 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0094

摘要： Disclosed are a method for reporting channel quality information and a device thereof, the method comprising: according to configuration information of a CSI-RS, a user equipment measuring the CSI-RS to acquire a downlink channel transmission matrix; according to a PDSCH transmission scheme used as a basis when determining a Channel Quality Indicator (CQI), and according to the measured downlink channel transmission matrix, the user equipment determining the CQI of a frequency domain reporting unit; and the user equipment reporting the determined CQI to a network side. Through the present invention, the measurement and reporting of the channel quality information based on the CSI-RS is implemented based on transmission of non-PMI feedback.

公开(公告)号：US09084254B2

公开(公告)日：2015-07-14

申请号：US14238839

申请日：2012-08-22

申请人： Xin Su ,  Ranran Zhang ,  Meifang Jing ,  Rakesh Tamrakar

发明人： Xin Su ,  Ranran Zhang ,  Meifang Jing ,  Rakesh Tamrakar

IPC分类号： H04W4/00 ,  H04W72/04 ,  H04L1/00 ,  H04L5/00 ,  H04B7/04

CPC分类号： H04W72/042 ,  H04B7/0417 ,  H04L1/0041 ,  H04L5/001 ,  H04L5/0035 ,  H04L5/0048 ,  H04L5/0051

摘要： Disclosed in the invention are a method and a device for transmitting downlink control information (DCI). The method comprises: processing the downlink control information to generate downlink control information code words; scrambling and modulating the downlink control information code words in turn to generate a modulation symbol sequence; mapping the modulation symbol sequence to v data layers, wherein v is an integer which is more than or equal to 1; mapping modulation symbols on the v data layers to a demodulation reference signal (DMRS) antenna port; and mapping the modulation symbols on the DMRS antenna port to a physical antenna and sending to user equipment (UE). According to the method and the device of the invention, multi-layer data transmission can be supported, the transmission mode is more flexible, and transmission efficiency is higher.

摘要翻译： 本发明公开了一种用于发送下行链路控制信息（DCI）的方法和装置。 该方法包括：处理下行链路控制信息以生成下行链路控制信息码字; 依次对下行链路控制信息码字进行加扰和调制，以生成调制符号序列; 将调制符号序列映射到v个数据层，其中v是大于或等于1的整数; 将v数据层上的调制符号映射到解调参考信号（DMRS）天线端口; 并将DMRS天线端口上的调制符号映射到物理天线并发送给用户设备（UE）。 根据本发明的方法和装置，可以支持多层数据传输，传输模式更加灵活，传输效率更高。

公开(公告)号：US08855068B2

公开(公告)日：2014-10-07

申请号：US13144633

申请日：2010-01-13

申请人： Fei Qin ,  Jinbo Zhao ,  Shaohui Sun ,  Li Liu ,  Qiubin Gao ,  Rakesh Tamrakar ,  Chun Luo

发明人： Fei Qin ,  Jinbo Zhao ,  Shaohui Sun ,  Li Liu ,  Qiubin Gao ,  Rakesh Tamrakar ,  Chun Luo

IPC分类号： H04W4/00 ,  H04B17/00 ,  H04L5/00 ,  H04W72/12 ,  H04B7/02 ,  H04W72/04 ,  H04W24/10 ,  H04L25/02

CPC分类号： H04W24/10 ,  H04B7/024 ,  H04B17/309 ,  H04B17/382 ,  H04L5/0007 ,  H04L5/0032 ,  H04L5/0035 ,  H04L25/0202 ,  H04W72/0426 ,  H04W72/1215 ,  H04W72/1242 ,  H04W72/1263

摘要： A method and a system for coordinated transmission, and a mobile terminal and network side device are provided. The method for coordinated transmission includes: reporting by the terminal of a signal measurement result; determining the coordinated transmission state of the terminal according to the signal measurement result; and providing transmission service for the terminal according to the determined transmission state.

摘要翻译： 提供了一种用于协调传输的方法和系统，以及一种移动终端和网络侧设备。 协调传输的方法包括：由终端报告信号测量结果; 根据信号测量结果确定终端的协调传输状态; 并根据确定的传输状态为终端提供传输服务。

公开(公告)号：US20130343216A1

公开(公告)日：2013-12-26

申请号：US13991152

申请日：2011-11-30

申请人： Xin Su ,  Qiubin Gao ,  Rakesh Tamrakar ,  Zukang Shen

发明人： Xin Su ,  Qiubin Gao ,  Rakesh Tamrakar ,  Zukang Shen

IPC分类号： H04W24/10

CPC分类号： H04W24/10 ,  H04B7/0417 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04L1/0026

摘要： There is disclosed method for reporting channel state so as to report channel state based upon CSI-RS. The method includes: a UE detecting configuration information of Channel State Information-Reference Signal (CSI-RS), determining according to detection result the number of ports required to report channel state based upon CSI-RS, the UE determining CSI-RS based PMI feedback scheme to be adopted in preset corresponding relationship between the number of ports and feedback scheme upon determining that the eNB is to map data of Physical Downlink Shared Channel (PDSCH) onto P (number) CSI-RS ports for transmission in a codebook-based precoding scheme, wherein the codebook-based precoding scheme is a scheme as represented in the formula of [ y ( 0 ) ⋮ y ( P - 1 ) ] = W · s , wherein W represents a codebook consisted of a precoding matrix, S is PDSCH data consisted of data layers whose quantity is equal to value of Rank Indication (RI) and   [ y ( 0 ) ⋮ y ( P - 1 ) ] represents a vector consisted of data on P (number) CSI-RS ports; and the UE calculating and reporting channel state information according to the determination result. The invention further discloses apparatus for performing the method.

摘要翻译： 公开了用于报告信道状态以便基于CSI-RS报告信道状态的方法。 该方法包括：UE检测信道状态信息参考信号（CSI-RS）的配置信息，根据检测结果确定基于CSI-RS报告信道状态所需的端口数，UE确定基于CSI-RS的PMI 在确定eNB将物理下行链路共享信道（PDSCH）的数据映射到基于码本的P（号码）CSI-RS端口上的数据之后，在端口数和反馈方案之间预设的对应关系中采用的反馈方案 预编码方案，其中基于码本的预编码方案是在[y（0）⋮y（P-1）] = W·s的公式中表示的方案，其中W表示由预编码矩阵组成的码本，S是 PDSCH数据由数量等于等级指示值（RI）和[y（0）⋮y（P-1）]的数据层组成，表示由P（个数）CSI-RS端口上的数据组成的向量; 并且UE根据确定结果来计算和报告信道状态信息。 本发明还公开了用于执行该方法的装置。