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1. 发明授权

US08411727B2 Method and device for feeding back and receiving downlink channel information 有权
标题翻译：用于反馈和接收下行链路信道信息的方法和装置
公开(公告)号：US08411727B2
公开(公告)日：2013-04-02
申请号：US12429409
申请日：2009-04-24
申请人： Luxi Yang , Daofeng Xu , Yongming Huang , Yi Luo
发明人： Luxi Yang , Daofeng Xu , Yongming Huang , Yi Luo
IPC分类号： H04B1/00
CPC分类号： H04B7/06 , H04B7/0619 , H04L5/0026 , H04L5/0053 , H04L27/2647
摘要： A method and a device for feeding back and receiving downlink channel information are disclosed, whereby spectrum utilization ratio of downlink channel information feedback is enhanced. According to the present invention, a wireless terminal superposes an uplink user information sequence with spectrum-spread downlink channel information before transmission. A network side de-spreads a received signal before estimating the downlink channel information, and then detects the user information sequence after subtracting the estimated downlink channel information from the received signal. An orthogonal code can be employed to spread the spectrum of the downlink channel information. The wireless terminal and base station use a plurality of antennas for transmission and reception.
摘要翻译：公开了一种用于反馈和接收下行链路信道信息的方法和装置，由此提高了下行链路信道反馈的频谱利用率。根据本发明，无线终端在传输之前将上行用户信息序列与扩频下行信道信息叠加。网络侧在估计下行链路信道信息之前解扩接收信号，然后在从接收到的信号中减去估计的下行链路信道信息之后检测用户信息序列。可以采用正交码来扩展下行链路信道信息的频谱。无线终端和基站使用多个天线进行发送和接收。

2. 发明申请

US20090262788A1 METHOD AND DEVICE FOR FEEDING BACK AND RECEIVING DOWNLINK CHANNEL INFORMATION 有权
标题翻译：用于馈送和接收下行链路信道的方法和设备
公开(公告)号：US20090262788A1
公开(公告)日：2009-10-22
申请号：US12429409
申请日：2009-04-24
申请人： Luxi YANG , Daofeng XU , Yongming HUANG , Yi LUO
发明人： Luxi YANG , Daofeng XU , Yongming HUANG , Yi LUO
IPC分类号： H04B1/707
CPC分类号： H04B7/06 , H04B7/0619 , H04L5/0026 , H04L5/0053 , H04L27/2647
摘要： A method and a device for feeding back and receiving downlink channel information are disclosed, whereby spectrum utilization ratio of downlink channel information feedback is enhanced. According to the present invention, a wireless terminal superposes an uplink user information sequence with spectrum-spread downlink channel information before transmission. A network side de-spreads a received signal before estimating the downlink channel information, and then detects the user information sequence after subtracting the estimated downlink channel information from the received signal. An orthogonal code can be employed to spread the spectrum of the downlink channel information. The wireless terminal and base station use a plurality of antennas for transmission and reception.
摘要翻译：公开了一种用于反馈和接收下行链路信道信息的方法和装置，由此提高了下行链路信道反馈的频谱利用率。根据本发明，无线终端在传输之前将上行用户信息序列与扩频下行信道信息叠加。网络侧在估计下行链路信道信息之前解扩接收信号，然后在从接收到的信号中减去估计的下行链路信道信息之后检测用户信息序列。可以采用正交码来扩展下行链路信道信息的频谱。无线终端和基站使用多个天线进行发送和接收。

3. 发明授权

US08264982B2 Method, apparatus and system for forming time division duplex multi-input multi-output downlink beams 有权
标题翻译：用于形成时分双工多输入多输出下行链路波束的方法，装置和系统
公开(公告)号：US08264982B2
公开(公告)日：2012-09-11
申请号：US12825099
申请日：2010-06-28
申请人： Luxi Yang , Daofeng Xu , Yinggang Du
发明人： Luxi Yang , Daofeng Xu , Yinggang Du
IPC分类号： H04B7/02 , H04W24/00 , H04L5/14
CPC分类号： H04B7/0639 , H04B7/0417 , H04B7/0634
摘要： In a method for forming TDD MIMO downlink beams, a BS receives an index of a codebook element from a mobile terminal. The codebook element refers to a codebook element whose correlation value has a greatest modulus value among correlation values that are calculated by the mobile terminal and are about correlation between the codebook element and a channel corresponding to a non-transmitting antenna of the mobile terminal. The BS calculates a channel vector corresponding to the non-transmitting antenna of the mobile terminal. The BS calculates channel vectors of the transmitting antennas of the mobile terminal, and performs SVD to determine a best transmitting precoding matrix.
摘要翻译：在形成TDD MIMO下行链路波束的方法中，BS从移动终端接收码本元素的索引。码本元素是指码本元素，其相关值在由移动终端计算的相关值中具有最大的模数值，并且涉及码本元素与对应于移动终端的非发送天线的信道之间的相关性。 BS计算与移动终端的非发送天线相对应的信道向量。 BS计算移动终端的发送天线的信道向量，并执行SVD以确定最佳发送预编码矩阵。

4. 发明授权

US08218668B2 Multi-user MIMO method, apparatus and communication system for transmitting signal 有权
标题翻译：多用户MIMO方法，用于发送信号的装置和通信系统
公开(公告)号：US08218668B2
公开(公告)日：2012-07-10
申请号：US12510632
申请日：2009-07-28
申请人： Luxi Yang , Daofeng Xu , Bin Li
发明人： Luxi Yang , Daofeng Xu , Bin Li
IPC分类号： H04B7/02
CPC分类号： H04B7/0443 , H04B7/0465
摘要： A multi-user multi-input multi-output (MIMO) method for transmitting signal with a includes: performing a Tomlinson-Harashima pre-coding (THP) on raw data; decomposing a channel matrix to a product of a block triangular matrix and a unitary matrix, and generating a signal to be transmitted by performing a forward filtering on the THP coded data by using the unitary matrix. A multi-user MIMO apparatus for transmitting signal includes an interference pre-eliminating unit, a modulo unit, a forward filtering unit, and a channel matrix decomposing unit. A multi-user MIMO communication system is further provided.
摘要翻译：一种用于发送信号的多用户多输入多输出（MIMO）方法，包括：对原始数据执行Tomlinson-Harashima预编码（THP）; 将信道矩阵分解为块三角矩阵和酉矩阵的乘积，并且通过使用酉矩阵对THP编码数据执行正向滤波来生成要发送的信号。用于发送信号的多用户MIMO装置包括干扰预消除单元，模单元，正向滤波单元和信道矩阵分解单元。还提供了一种多用户MIMO通信系统。

5. 发明授权

US08331426B2 Method, system and apparatus for improving throughput performance of space division multiple access system 有权
标题翻译：用于提高空分多址系统吞吐量性能的方法，系统和装置
公开(公告)号：US08331426B2
公开(公告)日：2012-12-11
申请号：US12815101
申请日：2010-06-14
申请人： Luxi Yang , Yongming Huang , Yuanqian Luo , Yinggang Du
发明人： Luxi Yang , Yongming Huang , Yuanqian Luo , Yinggang Du
IPC分类号： H04L5/16
CPC分类号： H04B7/0695 , H04B7/0617 , H04B7/0634 , H04B7/0697
摘要： A method, a system, and an apparatus for improving throughput performance of an SDMA system are disclosed herein. The method includes BTS receiving feedback information sent by a UE, where the feedback information comprises an ID of a preferred beam of the UE in a pre-coding codebook, information related to a channel vector modulus value, and information about phase difference between a channel vector and the preferred beam of the UE, and the BTS using a set estimation algorithm to estimate sum throughputs supported by a current SDMA system in each sending mode according to the received feedback information and information about space correlation between multiple antennas of the BTS, selecting a maximum sum throughput among the estimated sum throughputs, and using the sending mode corresponding to this sum throughput to send data. The method, system, and apparatus provided herein improve transmitting performance of the SDMA system.
摘要翻译：本文公开了一种用于提高SDMA系统的吞吐量性能的方法，系统和装置。该方法包括BTS接收由UE发送的反馈信息，其中反馈信息包括预编码码本中的UE的优选波束的ID，与信道向量模数值相关的信息，以及信道之间的相位差的信息矢量和UE的优选波束，BTS使用设置的估计算法，根据接收到的反馈信息和关于BTS的多个天线之间的空间相关性的信息来估计当前SDMA系统在每个发送模式中支持的吞吐量，选择估计和吞吐量之间的最大和吞吐量，并且使用与该和吞吐量对应的发送模式来发送数据。本文提供的方法，系统和装置提高了SDMA系统的传输性能。

6. 发明申请

US20100290549A1 Method, System and Apparatus for Improving Throughput Performance of Space Division Multiple Access System 有权
标题翻译：用于提高空分多址系统吞吐量性能的方法，系统和装置
公开(公告)号：US20100290549A1
公开(公告)日：2010-11-18
申请号：US12815101
申请日：2010-06-14
申请人： Luxi Yang , Yongming Huang , Yuanqian Luo , Yinggang Du
发明人： Luxi Yang , Yongming Huang , Yuanqian Luo , Yinggang Du
IPC分类号： H04L27/28
CPC分类号： H04B7/0695 , H04B7/0617 , H04B7/0634 , H04B7/0697
摘要： A method, a system, and an apparatus for improving throughput performance of an SDMA system are disclosed herein. The method includes BTS receiving feedback information sent by a UE, where the feedback information comprises an ID of a preferred beam of the UE in a pre-coding codebook, information related to a channel vector modulus value, and information about phase difference between a channel vector and the preferred beam of the UE, and the BTS using a set estimation algorithm to estimate sum throughputs supported by a current SDMA system in each sending mode according to the received feedback information and information about space correlation between multiple antennas of the BTS, selecting a maximum sum throughput among the estimated sum throughputs, and using the sending mode corresponding to this sum throughput to send data. The method, system, and apparatus provided herein improve transmitting performance of the SDMA system.
摘要翻译：本文公开了一种用于提高SDMA系统的吞吐量性能的方法，系统和装置。该方法包括BTS接收由UE发送的反馈信息，其中反馈信息包括预编码码本中的UE的优选波束的ID，与信道向量模数值相关的信息，以及信道之间的相位差的信息矢量和UE的优选波束，BTS使用设置的估计算法，根据接收到的反馈信息和关于BTS的多个天线之间的空间相关性的信息来估计当前SDMA系统在每个发送模式中支持的吞吐量，选择估计和吞吐量之间的最大和吞吐量，并且使用与该和吞吐量对应的发送模式来发送数据。本文提供的方法，系统和装置提高了SDMA系统的传输性能。

7. 发明申请

US20090290656A1 MULTI-USER MIMO METHOD, APPARATUS AND COMMUNICATION SYSTEM FOR TRANSMITTING SIGNAL 有权
标题翻译：多用户MIMO方法，发送信号的装置和通信系统
公开(公告)号：US20090290656A1
公开(公告)日：2009-11-26
申请号：US12510632
申请日：2009-07-28
申请人： Luxi YANG , Daofeng XU , Bin LI
发明人： Luxi YANG , Daofeng XU , Bin LI
IPC分类号： H04B7/02 , H04L27/00 , H04L25/49
CPC分类号： H04B7/0443 , H04B7/0465
摘要： A multi-user multi-input multi-output (MIMO) method for transmitting signal with a includes: performing a Tomlinson-Harashima pre-coding (THP) on raw data; decomposing a channel matrix to a product of a block triangular matrix and a unitary matrix, and generating a signal to be transmitted by performing a forward filtering on the THP coded data by using the unitary matrix. A multi-user MIMO apparatus for transmitting signal includes an interference pre-eliminating unit, a modulo unit, a forward filtering unit, and a channel matrix decomposing unit. A multi-user MIMO communication system is further provided.
摘要翻译：一种用于发送信号的多用户多输入多输出（MIMO）方法，包括：对原始数据执行Tomlinson-Harashima预编码（THP）; 将信道矩阵分解为块三角矩阵和酉矩阵的乘积，并且通过使用酉矩阵对THP编码数据执行正向滤波来生成要发送的信号。用于发送信号的多用户MIMO装置包括干扰预消除单元，模单元，正向滤波单元和信道矩阵分解单元。还提供了一种多用户MIMO通信系统。

8. 发明申请

US20090285156A1 METHOD, APPARATUS AND SYSTEM FOR SCHEDULING SDMA CODEBOOKS 审中-公开
标题翻译：方法，设备和系统用于调度SDMA CODEBOOKS
公开(公告)号：US20090285156A1
公开(公告)日：2009-11-19
申请号：US12429725
申请日：2009-04-24
申请人： Yongming HUANG , Luxi YANG , Hufei ZHU , Yinggang Du
发明人： Yongming HUANG , Luxi YANG , Hufei ZHU , Yinggang Du
IPC分类号： H04W4/00 , H04L12/28
CPC分类号： H04B7/0452 , H04B7/0417 , H04B7/0639
摘要： A method for scheduling an SDMA codebook includes: selecting, by a user, a most matching precoding matrix and a minimally interfering cluster in the SDMA codebook according to Channel State Information, CSI, of the user; calculating a data transmission rate supportable when the user undergoes interference caused by the minimally interfering cluster; and feeding back an index of the most matching precoding matrix, an index of the minimally interfering cluster, and the data transmission rate to a base station. An apparatus and system for scheduling an SDMA codebook is also provided.
摘要翻译：一种用于调度SDMA码本的方法包括：根据用户的信道状态信息CSI，由用户选择SDMA码本中最匹配的预编码矩阵和最小干扰簇; 计算当用户经受由最小干扰簇引起的干扰时支持的数据传输速率; 并将最匹配的预编码矩阵的索引，最小干扰簇的索引和到基站的数据传输速率反馈。还提供了一种用于调度SDMA码本的装置和系统。

9. 发明授权

US08355351B2 Method, apparatus and system for forming time division duplex multi-input multi-output downlink beams 有权
标题翻译：用于形成时分双工多输入多输出下行链路波束的方法，装置和系统
公开(公告)号：US08355351B2
公开(公告)日：2013-01-15
申请号：US12825065
申请日：2010-06-28
申请人： Luxi Yang , Daofeng Xu , Yinggang Du
发明人： Luxi Yang , Daofeng Xu , Yinggang Du
IPC分类号： H04J3/00
CPC分类号： H04B7/0408 , H04B7/0404 , H04B7/0413 , H04B7/0617 , H04B7/0658
摘要： A method, an apparatus, and a system for forming Time Division Duplex (TDD) Multi-Input Multi-Output (MIMO) downlink beams are disclosed herein. The method includes: generating a transmitting beam of a first data stream according to a Maximum Rate Transmission (MRT) criterion; and generating transmitting beams of other data streams except the first data stream, wherein the transmitting beams of other data streams are confined in a null space of the transmitting beam of the first data stream. Through the embodiments of the present invention, the Base Station obtains precise Partial Channel State Information by using only reciprocity without requiring feedback information, and thus the calculation is simplified and the rate of data streams is improved.
摘要翻译：本文公开了一种用于形成时分双工（TDD）多输入多输出（MIMO）下行链路波束的方法，装置和系统。该方法包括：根据最大速率传输（MRT）标准产生第一数据流的发射波束; 以及生成除第一数据流之外的其他数据流的发送波束，其中其他数据流的发送波束被限制在第一数据流的发送波束的零空间中。通过本发明的实施例，基站通过仅使用互易而不需要反馈信息来获得精确的部分信道状态信息，从而简化了计算，并提高了数据流的速率。

10. 发明申请

US20100265855A1 METHOD, APPARATUS AND SYSTEM FOR FORMING TIME DIVISION DUPLEX MULTI-INPUT MULTI-OUTPUT DOWNLINK BEAMS 有权
标题翻译：方法，形成时分双工多输入多输出下行链路的装置和系统
公开(公告)号：US20100265855A1
公开(公告)日：2010-10-21
申请号：US12825065
申请日：2010-06-28
申请人： Luxi Yang , Daofeng Xu , Yinggang Du
发明人： Luxi Yang , Daofeng Xu , Yinggang Du
IPC分类号： H04B7/02 , H04J3/00 , H04L5/14
CPC分类号： H04B7/0408 , H04B7/0404 , H04B7/0413 , H04B7/0617 , H04B7/0658
摘要： A method, an apparatus, and a system for forming Time Division Duplex (TDD) Multi-Input Multi-Output (MIMO) downlink beams are disclosed herein. The method includes: generating a transmitting beam of a first data stream according to a Maximum Rate Transmission (MRT) criterion; and generating transmitting beams of other data streams except the first data stream, wherein the transmitting beams of other data streams are confined in a null space of the transmitting beam of the first data stream. Through the embodiments of the present invention, the Base Station obtains precise Partial Channel State Information by using only reciprocity without requiring feedback information, and thus the calculation is simplified and the rate of data streams is improved.
摘要翻译：本文公开了一种用于形成时分双工（TDD）多输入多输出（MIMO）下行链路波束的方法，装置和系统。该方法包括：根据最大速率传输（MRT）标准产生第一数据流的发射波束; 以及生成除第一数据流之外的其他数据流的发送波束，其中其他数据流的发送波束被限制在第一数据流的发送波束的零空间中。通过本发明的实施例，基站通过仅使用互易而不需要反馈信息来获得精确的部分信道状态信息，从而简化了计算，并提高了数据流的速率。

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