公开(公告)号：US08248909B2

公开(公告)日：2012-08-21

申请号：US12296841

申请日：2007-04-09

申请人： Dong Li ,  Guosong Li ,  Xialong Zhu ,  Hongwei Yang ,  Liyu Cai

发明人： Dong Li ,  Guosong Li ,  Xialong Zhu ,  Hongwei Yang ,  Liyu Cai

IPC分类号： H04J11/00

CPC分类号： H04L25/03159 ,  H04L1/0606 ,  H04L1/0625 ,  H04L1/0668 ,  H04L5/0042 ,  H04L5/0044 ,  H04L5/0046 ,  H04L27/2605 ,  H04L27/261 ,  H04L27/2636

摘要： A method and device for the baseband process of space-time/space-frequency/spatial diversity transmitter in the SC-FDMA system, the device is characterized in that: 1) an encoding means is connected to the output end of the M-point DFT module; 2) a space-time encoding means, for encoding the corresponding symbol of at least two adjacent symbol sets, and outputting at least two data sets; each sub-carrier mapping means maps respectively each data set to the corresponding antenna, so that the mapped data satisfy the requirements: The symbols mapped on each antenna keep the same sequence as the M symbols outputted by the M-point DFT module; the mapped symbols keep the same sub-carrier interval; the M data of each mapped SC-FDMA symbol are the M outputted data of the DFT module, or the inverse of the M outputted data, or the complex conjugate of the M outputted data, or the inverse complex conjugate of the M outputted data. The present invention implements effective space diversity, reduces PAPR, and makes frequency domain equalization feasible.

摘要翻译： 一种用于SC-FDMA系统中的时空/空频/空间分集发射机基带处理的方法和装置，其特征在于：1）编码装置连接到M点的输出端 DFT模块; 2）空时编码装置，用于编码至少两个相邻符号集的对应符号，并输出至少两个数据集; 每个子载波映射装置分别将每个数据集映射到相应的天线，使得映射的数据满足要求：映射在每个天线上的符号保持与M点DFT模块输出的M个符号相同的序列; 映射的符号保持相同的子载波间隔; 每个映射的SC-FDMA符号的M数据是DFT模块的M个输出数据，或M个输出数据的逆，或M个输出数据的复共轭，或M个输出数据的反复共轭。 本发明实现有效的空间分集，减少PAPR，使得频域均衡成为可能。

公开(公告)号：US20090303866A1

公开(公告)日：2009-12-10

申请号：US12296841

申请日：2007-04-09

申请人： Dong Li ,  Guosong Li ,  Xialong Zhu ,  Hongwei Yang ,  Liyu Cai

发明人： Dong Li ,  Guosong Li ,  Xialong Zhu ,  Hongwei Yang ,  Liyu Cai

IPC分类号： H04J11/00 ,  H04L27/00

CPC分类号： H04L25/03159 ,  H04L1/0606 ,  H04L1/0625 ,  H04L1/0668 ,  H04L5/0042 ,  H04L5/0044 ,  H04L5/0046 ,  H04L27/2605 ,  H04L27/261 ,  H04L27/2636

摘要： A method and device for the baseband process of space-time/space-frequency/spatial diversity transmitter in the SC-FDMA system, the device is characterized in that: 1) an encoding means is connected to the output end of the M-point DFT module; 2) a space-time encoding means, for encoding the corresponding symbol of at least two adjacent symbol sets, and outputting at least two data sets; each sub-carrier mapping means maps respectively each data set to the corresponding antenna, so that the mapped data satisfy the requirements: The symbols mapped on each antenna keep the same sequence as the M symbols outputted by the M-point DFT module; the mapped symbols keep the same sub-carrier interval; the M data of each mapped SC-FDMA symbol are the M outputted data of the DFT module, or the inverse of the M outputted data, or the complex conjugate of the M outputted data, or the inverse complex conjugate of the M outputted data. The present invention implements effective space diversity, reduces PAPR, and makes frequency domain equalization feasible.

摘要翻译： 一种用于SC-FDMA系统中的时空/空频/空间分集发射机基带处理的方法和装置，其特征在于：1）编码装置连接到M点的输出端 DFT模块; 2）空时编码装置，用于编码至少两个相邻符号集的对应符号，并输出至少两个数据集; 每个子载波映射装置分别将每个数据集映射到相应的天线，使得映射的数据满足要求：映射在每个天线上的符号保持与M点DFT模块输出的M个符号相同的序列; 映射的符号保持相同的子载波间隔; 每个映射的SC-FDMA符号的M数据是DFT模块的M个输出数据，或M个输出数据的逆，或M个输出数据的复共轭，或M个输出数据的反复共轭。 本发明实现有效的空间分集，减少PAPR，使得频域均衡成为可能。

公开(公告)号：US08238307B2

公开(公告)日：2012-08-07

申请号：US12674092

申请日：2008-08-13

申请人： Hongwei Yang ,  Liyu Cai ,  Keying Wu ,  Dong Li

发明人： Hongwei Yang ,  Liyu Cai ,  Keying Wu ,  Dong Li

IPC分类号： H04W4/00 ,  H04W36/00 ,  H04J1/00

CPC分类号： H04B7/022 ,  H04B7/0413

摘要： A Macro-Diversity HandOver (MDHO) solution based on multi-User MIMO is provided. Multiple base stations (BSs) serve the MDHO zone. By jointly precoding the modulated signals to be sent, the multiple BSs send the precoded signals to the multiple mobile stations (MSs) over the same time-frequency resources. The signal to be sent is transmitted to the multiple MSs in the MDHO zone. Due to the adoption of the precoding technique, each MS makes no or small interference to other MSs. Since the multiple BSs that serve one MDHO zone serve multiple MSs over the same time-frequency resources, the system capacity in the MDHO zone is greatly improved.

摘要翻译： 提供了一种基于多用户MIMO的宏分集切换（MDHO）解决方案。 多个基站（BS）服务于MDHO区域。 通过联合预编码要发送的调制信号，多个BS通过相同的时间 - 频率资源向多个移动站（MS）发送预编码的信号。 要发送的信号被发送到MDHO区域中的多个MS。 由于采用了预编码技术，每个MS对其他MS没有任何或小的干扰。 由于服务于一个MDHO区域的多个BS在相同的时间 - 频率资源上服务于多个MS，所以MDHO区域中的系统容量大大提高。

公开(公告)号：US07397874B2

公开(公告)日：2008-07-08

申请号：US11103618

申请日：2005-04-12

申请人： Dong Li ,  Hongwei Yang ,  Liyu Cai

发明人： Dong Li ,  Hongwei Yang ,  Liyu Cai

IPC分类号： H04B7/10

CPC分类号： H04B7/0891 ,  H04B7/04 ,  H04B7/0854

摘要： The present invention discloses a V-BLAST detection method for a MIMO system, including: a first detecting step for acquiring in sequence the old detection components of a transmitting symbol vector with the optimum ordering-successive interference cancellation detection method; a second detecting step for taking the detection component with the highest space diversity degree among the old detection components as a first new lo detection component, and acquiring in sequence the other new detection components of the transmitting symbol vector in an inverse order of the optimum detection order with the optimum ordering-successive interference cancellation detection method; an outputting step for outputting the first new detection component and the other new is detection components as the final detection result. The method according to the invention employs the outer close loop iteration technology to further reduce inter-layer error propagation of V-BLAST. This method has less complexity.

摘要翻译： 本发明公开了一种MIMO系统的V-BLAST检测方法，包括：第一检测步骤，用于以最佳排序连续干扰消除检测方法依次获取发送符号向量的旧检测分量; 第二检测步骤，用于将旧检测部件中具有最高空间分集度的检测部件作为第一新的检测部件，并且以最佳检测的相反顺序依次获取发送符号向量的其他新检测部件 采用最优排序顺序干扰消除检测方法; 用于输出第一新检测组件的输出步骤和其他新的检测组件作为最终检测结果。 根据本发明的方法采用外闭环迭代技术来进一步减少V-BLAST的层间误差传播。 这种方法的复杂性较低。

公开(公告)号：US20110063989A1

公开(公告)日：2011-03-17

申请号：US12674092

申请日：2008-08-13

申请人： Hongwei Yang ,  Liyu Cai ,  Keying Wu ,  Dong Li

发明人： Hongwei Yang ,  Liyu Cai ,  Keying Wu ,  Dong Li

IPC分类号： H04W28/00 ,  H04W36/20

CPC分类号： H04B7/022 ,  H04B7/0413

摘要： A Macro-Diversity HandOver (MDHO) solution based on multi-User MIMO is provided. Multiple base stations (BSs) serve the MDHO zone. By jointly precoding the modulated signals to be sent, the multiple BSs send the precoded signals to the multiple mobile stations (MSs) over the same time-frequency resources. The signal to be sent is transmitted to the multiple MSs in the MDHO zone. Due to the adoption of the precoding technique, each MS makes no or small interference to other MSs. Since the multiple BSs that serve one MDHO zone serve multiple MSs over the same time-frequency resources, the system capacity in the MDHO zone is greatly improved.

摘要翻译： 提供了一种基于多用户MIMO的宏分集切换（MDHO）解决方案。 多个基站（BS）服务于MDHO区域。 通过联合预编码要发送的调制信号，多个BS通过相同的时间 - 频率资源向多个移动站（MS）发送预编码的信号。 要发送的信号被发送到MDHO区域中的多个MS。 由于采用了预编码技术，每个MS对其他MS没有任何或小的干扰。 由于服务于一个MDHO区域的多个BS在相同的时间 - 频率资源上服务于多个MS，所以MDHO区域中的系统容量大大提高。

公开(公告)号：US20100290370A1

公开(公告)日：2010-11-18

申请号：US12741846

申请日：2007-11-07

申请人： Dong Li ,  Liyu Cai ,  Hongwei Yang

发明人： Dong Li ,  Liyu Cai ,  Hongwei Yang

IPC分类号： H04W72/04

CPC分类号： H04B7/2656 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/14 ,  H04L5/143 ,  H04W72/044 ,  H04W72/12

摘要： A method and an apparatus for scheduling resources between a first TDD system and a second TDD system are disclosed, frames required for transmission by the first TDD system including a preamble sequence, an up-link subframe and a down-link subframe, the method comprises steps of allocating time and frequency resources for the first TDD system and the second TDD system based on service parameters of the first TDD system and service parameters of the second TDD system, and mapping the coded modulation data stream of the first TDD system and the second TDD system onto corresponding allocated time and frequency resources. According to the method and apparatus of the present invention, not only the latency of the traffic service, control signaling and the feedback transmission over the air interface can be reduced, but the compatibility requirement for existing system can also be reached. Moreover, resource allocation can be performed between different systems based on respective service loads.

摘要翻译： 公开了一种用于在第一TDD系统和第二TDD系统之间调度资源的方法和装置，所述方法包括前导码序列，上行链路子帧和下行链路子帧的第一TDD系统的传输所需的帧，该方法包括 基于第一TDD系统的服务参数和第二TDD系统的服务参数为第一TDD系统和第二TDD系统分配时间和频率资源的步骤，以及映射第一TDD系统和第二TDD系统的编码调制数据流 TDD系统对应分配的时间和频率资源。 根据本发明的方法和装置，不仅可以减少业务业务的等待时间，控制信令和空中接口的反馈传输，还可以达到现有系统的兼容性要求。 此外，可以基于相应的服务负载在不同系统之间执行资源分配。

公开(公告)号：US20050239509A1

公开(公告)日：2005-10-27

申请号：US11103618

申请日：2005-04-12

申请人： Dong Li ,  Hongwei Yang ,  Liyu Cai

发明人： Dong Li ,  Hongwei Yang ,  Liyu Cai

IPC分类号： H04B7/04 ,  H04B7/06 ,  H04B7/08 ,  H04M1/00

CPC分类号： H04B7/0891 ,  H04B7/04 ,  H04B7/0854

摘要： The present invention discloses a V-BLAST detection method for a MIMO system, including: a first detecting step for acquiring in sequence the old detection components of a transmitting symbol vector with the optimum ordering-successive interference cancellation detection method; a second detecting step for taking the detection component with the highest space diversity degree among the old detection components as a first new lo detection component, and acquiring in sequence the other new detection components of the transmitting symbol vector in an inverse order of the optimum detection order with the optimum ordering-successive interference cancellation detection method; an outputting step for outputting the first new detection component and the other new is detection components as the final detection result. The method according to the invention employs the outer close loop iteration technology to further reduce inter-layer error propagation of V-BLAST. This method has less complexity.

摘要翻译： 本发明公开了一种MIMO系统的V-BLAST检测方法，包括：第一检测步骤，用于以最佳排序连续干扰消除检测方法依次获取发送符号向量的旧检测分量; 第二检测步骤，用于将旧检测部件中具有最高空间分集度的检测部件作为第一新的检测部件，并且以最佳检测的相反顺序依次获取发送符号向量的其他新检测部件 采用最优排序顺序干扰消除检测方法; 用于输出第一新检测组件的输出步骤和其他新的检测组件作为最终检测结果。 根据本发明的方法采用外闭环迭代技术来进一步减少V-BLAST的层间错误传播。 这种方法的复杂性较低。

公开(公告)号：US20100303170A1

公开(公告)日：2010-12-02

申请号：US12599491

申请日：2007-05-10

申请人： Xiaolong Zhu ,  Hongwei Yang ,  Liyu Cai

发明人： Xiaolong Zhu ,  Hongwei Yang ,  Liyu Cai

IPC分类号： H04L25/03 ,  H04L27/00 ,  H04L25/49

CPC分类号： H04B7/0417 ,  H04B7/0617 ,  H04B7/0689

摘要： A method for pre-processing data to be transmitted in a multiple-input communication system comprises the following steps: generating a beamforming matrix and a pre-coding matrix; combining the beamforming matrix and the pre-coding matrix to generate a weight matrix; and pre-processing the data by using the generated weight matrix. There are also provided a transmitter, a base station, and a communication system using the method.

摘要翻译： 一种用于预处理在多输入通信系统中发送的数据的方法包括以下步骤：产生波束成形矩阵和预编码矩阵; 组合波束形成矩阵和预编码矩阵以生成权重矩阵; 并通过使用生成的权重矩阵来预处理数据。 还提供了一种发射机，基站和使用该方法的通信系统。

公开(公告)号：US20110028156A1

公开(公告)日：2011-02-03

申请号：US12936696

申请日：2009-03-13

申请人： Xiaolong Zhu ,  Liyu Cai ,  Keying Wu ,  Hongwei Yang

发明人： Xiaolong Zhu ,  Liyu Cai ,  Keying Wu ,  Hongwei Yang

IPC分类号： H04W72/04

CPC分类号： H04B7/024 ,  H04B7/0417 ,  H04B7/0634 ,  H04B7/065

摘要： A method and device for controlling the serving BS and at least one coordinating BS for coordinating downlink data communication with the MS in a wireless telecommunication network based on CO-MIMO technology. The method comprises obtaining the MIMO downlink channel information between the serving BS and the MS and between the coordinating BS and the MS, determining the downlink signal precoding information between the serving BS and the MS and between the coordinating BS and the MS according to the channel information, and performing MIMO downlink data communication coordinately with the MS based on the downlink signal precoding information.

摘要翻译： 一种用于在基于CO-MIMO技术的无线电信网络中控制服务BS和至少一个协调BS以协调与MS的下行链路数据通信的方法和设备。 该方法包括：获取服务BS与MS之间以及协调BS与MS之间的MIMO下行链路信道信息，根据信道确定服务BS与MS之间以及协调BS与MS之间的下行链路信号预编码信息 信息，并且基于下行链路信号预编码信息与MS协调地执行MIMO下行链路数据通信。

公开(公告)号：US08611905B2

公开(公告)日：2013-12-17

申请号：US12936696

申请日：2009-03-13

申请人： Xiaolong Zhu ,  Liyu Cai ,  Keying Wu ,  Hongwei Yang

发明人： Xiaolong Zhu ,  Liyu Cai ,  Keying Wu ,  Hongwei Yang

IPC分类号： H04W36/00

CPC分类号： H04B7/024 ,  H04B7/0417 ,  H04B7/0634 ,  H04B7/065

摘要： A method and device for controlling the serving BS and at least one coordinating BS for coordinating downlink data communication with the MS in a wireless telecommunication network based on CO-MIMO technology. The method comprises obtaining the MIMO downlink channel information between the serving BS and the MS and between the coordinating BS and the MS, determining the downlink signal precoding information between the serving BS and the MS and between the coordinating BS and the MS according to the channel information, and performing MIMO downlink data communication coordinately with the MS based on the downlink signal precoding information.

摘要翻译： 一种用于在基于CO-MIMO技术的无线电信网络中控制服务BS和至少一个协调BS以协调与MS的下行链路数据通信的方法和设备。 该方法包括：获取服务BS与MS之间以及协调BS与MS之间的MIMO下行链路信道信息，根据信道确定服务BS与MS之间以及协调BS与MS之间的下行链路信号预编码信息 信息，并且基于下行链路信号预编码信息与MS协调地执行MIMO下行链路数据通信。