公开(公告)号：US20140355408A1

公开(公告)日：2014-12-04

申请号：US14368767

申请日：2012-01-19

申请人： Hui Tong ,  Masayuki Hoshino ,  Ming Xu ,  Daichi Imamura

发明人： Hui Tong ,  Masayuki Hoshino ,  Ming Xu ,  Daichi Imamura

IPC分类号： H04L5/00 ,  H04L25/03

CPC分类号： H04L5/0048 ,  H04B7/024 ,  H04B7/0684 ,  H04J13/0003 ,  H04J13/004 ,  H04J13/18 ,  H04J2211/005 ,  H04L5/0025 ,  H04L25/03866 ,  H04L27/2613

摘要： A Method of scrambling reference signals, device and user equipment using the method are provided. In the method, a plurality of layers of reference signals assigned on predetermined radio resource of a plurality of layers of resource blocks with the same time and frequency resources are scrambled, the method comprising: an orthogonalizing step of multiplying each layer of reference signal selectively by one of a plurality of orthogonal cover codes (OCCs) with the same length wherein the OCC multiplied to a first layer of reference signal can be configured as different from those multiplied to other layers of reference signals; and a scrambling step of multiplying all of symbols obtained from the OCC multiplied to each of the other layers of reference signals by a symbol-common scrambling sequence wherein the symbol-common scrambling sequences can be different from each other for reference signals multiplied by the same OCC.

摘要翻译： 提供了使用该方法对参考信号，设备和用户设备进行加扰的方法。 在该方法中，对具有相同时间和频率资源的资源块的多个层的预定无线电资源上分配的多个参考信号层进行加扰，所述方法包括：正交化步骤，将每个参考信号层选择性地乘以 具有相同长度的多个正交覆盖码（OCC）中的一个可以被配置为与被附加到其他参考信号层相乘的OCC相乘的OCC与参考信号的第一层相乘; 以及加扰步骤，将从所述其他参考信号层中的每一个相乘的所有符号乘以符号公共加扰序列，其中符号公共加扰序列可以彼此不同，以便将其乘以相同的参考信号 OCC。

公开(公告)号：US20130064317A1

公开(公告)日：2013-03-14

申请号：US13582848

申请日：2011-02-21

申请人： Hui Tong ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura

发明人： Hui Tong ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura

IPC分类号： H04B7/06

CPC分类号： H04B7/0636 ,  H04B7/0469 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/065 ,  H04B7/10

摘要： There is provided a method and device for feeding back a pre-coding matrix index of a dual-polarized antenna which has a first antenna array and a second antenna array and is arranged at a base station to which the index of a first pre-coding matrix for the first antenna array, the index of a second pre-coding matrix for the second antenna array and the phase offset between the first pre-coding matrix and the second pre-coding matrix are fed back from a terminal, comprising: computing a distance between the first pre-coding matrix and the second pre-coding matrix; judging whether the distance is larger than a predetermined threshold or not; and assigning less bits to indicate the phase offset if the distance is larger than the predetermined threshold. The method and device according to the present disclosure can effectively advance the feedback accuracy of a system thus improving the bit error rate and throughput of the system.

摘要翻译： 提供了一种用于反馈具有第一天线阵列和第二天线阵列的双极化天线的预编码矩阵索引的方法和装置，并且被布置在基站，第一预编码的索引 用于第一天线阵列的矩阵，用于第二天线阵列的第二预编码矩阵的索引和第一预编码矩阵与第二预编码矩阵之间的相位偏移从终端反馈，包括：计算 第一预编码矩阵和第二预编码矩阵之间的距离; 判断距离是否大于预定阈值; 并且如果距离大于预定阈值，则分配较少的比特来指示相位偏移。 根据本公开的方法和装置可以有效地提高系统的反馈精度，从而提高系统的误码率和吞吐量。

公开(公告)号：US20130010895A1

公开(公告)日：2013-01-10

申请号：US13634210

申请日：2011-03-15

申请人： Hui Tong ,  Masayuki Hoshino ,  Ming Xu ,  Seigo Nakao ,  Daichi Imamura

发明人： Hui Tong ,  Masayuki Hoshino ,  Ming Xu ,  Seigo Nakao ,  Daichi Imamura

IPC分类号： H04L25/49

CPC分类号： H04B7/0478 ,  H04B7/024 ,  H04B7/0456 ,  H04B7/0469 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/0641 ,  H04B7/0663 ,  H04B2001/3855 ,  H04B2001/3861 ,  H04L25/03904 ,  H04L25/03917 ,  H04W88/02 ,  H04W88/08

摘要： The present disclosure provides a method of generating codebook in a wireless communication system with multiple antenna arrays, as well as a wireless communication system, base station and terminal using the codebook for communication. The method comprises steps of: providing a basic codebook which cotains multiple pre-coding matrices; and assigning phase offsets to certain pre-coding matrices in the basic codebook to form a codebook with phase offset. The feedback overhead from a client to a base station side is reduced and a good precision of feedback for multi-antenna array is kept by applying the method of generating codebook and using the generated codebook in the wireless communication system, base station and terminal.

摘要翻译： 本公开提供了一种在具有多个天线阵列的无线通信系统中生成码本的方法，以及使用该通信码本的无线通信系统，基站和终端。 该方法包括以下步骤：提供困扰多个预编码矩阵的基本码本; 并将相位偏移分配给基本码本中的某些预编码矩阵以形成具有相位偏移的码本。 降低了从客户端到基站侧的反馈开销，通过在无线通信系统，基站和终端中应用生成码本的方法和使用生成的码本来保持多天线阵列的反馈精度良好。

公开(公告)号：US10051489B2

公开(公告)日：2018-08-14

申请号：US14129259

申请日：2012-05-11

申请人： Hui Tong ,  Masayuki Hoshino ,  Akihiko Nishio ,  Ming Xu ,  Daichi Imamura

发明人： Hui Tong ,  Masayuki Hoshino ,  Akihiko Nishio ,  Ming Xu ,  Daichi Imamura

IPC分类号： H04B7/06 ,  H04W24/02 ,  H04L1/00 ,  H04W24/10 ,  H04W88/02

CPC分类号： H04W24/02 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/065 ,  H04B7/066 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/003 ,  H04L1/0031 ,  H04W24/10 ,  H04W88/02

摘要： Provided is reporting one or more long term CSI components to an eNode B, wherein at least one long term CSI component being reported with multiple values; and reporting a transmission scheme assumption indicator (TSAI) together with a set of short term CSI components to the eNode B, wherein the TSAI indicating the eNode B of a value of the multiple values of the at least one long term CSI component to be currently used and of the set of short term CSI components being conditioned on the value indicated by the TSAI, wherein the short term CSI components being reported more frequently.

公开(公告)号：US09872279B2

公开(公告)日：2018-01-16

申请号：US14114883

申请日：2011-09-29

申请人： Hui Tong ,  Masayuki Hoshino ,  Daichi Imamura ,  Ming Xu

发明人： Hui Tong ,  Masayuki Hoshino ,  Daichi Imamura ,  Ming Xu

IPC分类号： H04W72/04 ,  H04B7/024 ,  H04B7/06 ,  H04L1/00 ,  H04L5/00 ,  H04W28/08 ,  H04L25/02 ,  H04W16/32

CPC分类号： H04W72/0413 ,  H04B7/024 ,  H04B7/0632 ,  H04L1/0015 ,  H04L1/0026 ,  H04L5/0035 ,  H04L5/0075 ,  H04L25/0208 ,  H04W16/32 ,  H04W28/08

摘要： A base station and a related method are provided. The base station includes a transmitter which, in operation, transmits, to a user equipment (UE), values configured for different base station coordination types, respectively, wherein each of the base station coordination types defines which base stations among multiple base stations perform coordinated transmission in that base station coordination type. The base station further includes a receiver which, in operation, receives a channel quality indicator (CQI) reported from the UE, wherein the CQI is calculated at the UE in reference to the values.

公开(公告)号：US09743304B2

公开(公告)日：2017-08-22

申请号：US13981589

申请日：2011-03-31

申请人： Hui Tong ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura

发明人： Hui Tong ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura

IPC分类号： H04W24/10 ,  H04B7/0452 ,  H04B7/06 ,  H04W52/02 ,  H04L1/00

CPC分类号： H04W24/10 ,  H04B7/0452 ,  H04B7/0632 ,  H04B7/0639 ,  H04L1/0026 ,  H04L1/0031 ,  H04W52/0238 ,  Y02D70/1262 ,  Y02D70/444

摘要： There are provided a method, user equipment, and transmission point device for feeding back channel quality indicator (MU-CQI) to the transmission point in a communication system including the transmission point and a plurality of user equipments, the method comprising steps: the transmission point sending a message to an intended user equipment of the plurality of user equipments; and the intended user equipment calculating the MU-CQI based on the message, and feeding back the MU-CQI to the transmission point. The present disclosure enables dynamic MU operation, and improves link adaptation performance with marginal downlink overhead. And the accuracy is not limited by codebook size.

公开(公告)号：US08995541B2

公开(公告)日：2015-03-31

申请号：US13883155

申请日：2010-11-05

申请人： Hui Tong ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura

发明人： Hui Tong ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura

IPC分类号： H04L27/28 ,  H04B7/04 ,  H04B7/06

CPC分类号： H04B7/0456 ,  H04B7/0478 ,  H04B7/0639

摘要： A method, mobile terminal, and system for reporting BCI are provided, the method comprises the steps of: obtaining a PMI W1 set and a PMI W2 to be used for a mobile terminal based on a double codebook; computing a BCI W1 set to be used for another mobile terminal based on the PMI W1 set; selecting a BCI W2 from the BCI W1 set based on the PMI W2; and reporting the BCI W1 set and the BCI W2 to a base station, wherein W1 indicates a long-term or wideband component of the PMI and BCI, and W2 indicates a short-term or narrowband component of the PMI and BCI. With the present disclosure, the probability that the optimal BCI W2 is included in the shifted BCI W1 set is increased, and the overhead for feeding-back the BCI is reduced.

摘要翻译： 提供了一种用于报告BCI的方法，移动终端和系统，该方法包括以下步骤：基于双码本获取要用于移动终端的PMI W1集和PMI W2; 基于PMI W1设置计算用于另一移动终端的BCI W1集合; 从基于PMI W2的BCI W1集合中选择BCI W2; 并将BCI W1集和BCI W2报告给基站，其中W1表示PMI和BCI的长期或宽带分量，W2表示PMI和BCI的短期或窄带分量。 在本公开中，增加了偏移BCI W1集合中包含最佳BCI W2的概率，并且减少了用于反馈BCI的开销。

公开(公告)号：US08825095B2

公开(公告)日：2014-09-02

申请号：US13266441

申请日：2010-04-09

申请人： Hui Tong ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura

发明人： Hui Tong ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura

IPC分类号： H04B15/00 ,  H04L5/00 ,  H04W72/04

CPC分类号： H04L5/0048 ,  H04B7/0617 ,  H04B7/0626 ,  H04B7/0639 ,  H04L5/0051 ,  H04L5/0055 ,  H04L5/0057 ,  H04W16/14 ,  H04W72/04 ,  H04W72/0453 ,  H04W72/046 ,  H04W72/0473 ,  H04W72/082 ,  H04W72/085 ,  Y02D70/1262 ,  Y02D70/146

摘要： A method and a system of setting up a reference signal in a radio communication system. The radio communication system includes a serving cell and a neighboring cell, and a mobile terminal of the serving cell uses the same temporal frequency resource so as to receive a serving resource block from the serving cell and receive an interference resource block from the neighboring cell. The method according to the present disclosure includes a step of setting up a user-specific reference signal in the interference resource block and a step in which puncturing is performed at same temporal frequency position as the temporal frequency position at which the user-specific reference signal is set up on the interference resource block of the serving resource block so as to prevent any signal from being transmitted at the punctured temporal frequency position. When the method and the system provided in the present disclosure are used and the interference power between cells is thereby measured, it is possible to effectively reduce feedback overhead in a coordinated beamforming.

摘要翻译： 一种在无线电通信系统中建立参考信号的方法和系统。 无线电通信系统包括服务小区和相邻小区，并且服务小区的移动终端使用相同的时间频率资源，从服务小区接收服务资源块，并从邻近小区接收干扰资源块。 根据本公开的方法包括在干扰资源块中建立用户特定参考信号的步骤，以及在与用户特定参考信号的时间频率位置相同的时间频率位置执行删截的步骤 设置在服务资源块的干扰资源块上，以防止在穿孔的时间频率位置发送任何信号。 当使用本公开中提供的方法和系统并且由此测量小区之间的干扰功率时，可以有效地减少协调波束成形中的反馈开销。

公开(公告)号：US08798195B2

公开(公告)日：2014-08-05

申请号：US13634210

申请日：2011-03-15

申请人： Hui Tong ,  Masayuki Hoshino ,  Ming Xu ,  Seigo Nakao ,  Daichi Imamura

发明人： Hui Tong ,  Masayuki Hoshino ,  Ming Xu ,  Seigo Nakao ,  Daichi Imamura

IPC分类号： H04L25/49

CPC分类号： H04B7/0478 ,  H04B7/024 ,  H04B7/0456 ,  H04B7/0469 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/0641 ,  H04B7/0663 ,  H04B2001/3855 ,  H04B2001/3861 ,  H04L25/03904 ,  H04L25/03917 ,  H04W88/02 ,  H04W88/08

摘要： The present disclosure provides a method of generating codebook in a wireless communication system with multiple antenna arrays, as well as a wireless communication system, base station and terminal using the codebook for communication. The method comprises steps of: providing a basic codebook which contains multiple pre-coding matrices; and assigning phase offsets to certain pre-coding matrices in the basic codebook to form a codebook with phase offset. The feedback overhead from a client to a base station side is reduced and a good precision of feedback for multi-antenna array is kept by applying the method of generating codebook and using the generated codebook in the wireless communication system, base station and terminal.

摘要翻译： 本公开提供了一种在具有多个天线阵列的无线通信系统中生成码本的方法，以及使用该通信码本的无线通信系统，基站和终端。 该方法包括以下步骤：提供包含多个预编码矩阵的基本码本; 并将相位偏移分配给基本码本中的某些预编码矩阵以形成具有相位偏移的码本。 降低了从客户端到基站侧的反馈开销，通过在无线通信系统，基站和终端中应用生成码本的方法和使用生成的码本来保持多天线阵列的反馈精度良好。

公开(公告)号：US20130223549A1

公开(公告)日：2013-08-29

申请号：US13883155

申请日：2010-11-05

申请人： Hui Tong ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura

发明人： Hui Tong ,  Ming Xu ,  Masayuki Hoshino ,  Daichi Imamura

IPC分类号： H04B7/04

CPC分类号： H04B7/0456 ,  H04B7/0478 ,  H04B7/0639

摘要： A method, mobile terminal, and system for reporting BCI are provided, the method comprises the steps of: obtaining a PMI W1 set and a PMI W2 to be used for a mobile terminal based on a double codebook; computing a BCI W1 set to be used for another mobile terminal based on the PMI W1 set; selecting a BCI W2 from the BCI W1 set based on the PMI W2; and reporting the BCI W1 set and the BCI W2 to a base station, wherein W1 indicates a long-term or wideband component of the PMI and BCI, and W2 indicates a short-term or narrowband component of the PMI and BCI. With the present disclosure, the probability that the optimal BCI W2 is included in the shifted BCI W1 set is increased, and the overhead for feeding-back the BCI is reduced. T

摘要翻译： 提供了一种用于报告BCI的方法，移动终端和系统，该方法包括以下步骤：基于双码本获取要用于移动终端的PMI W1集和PMI W2; 基于PMI W1设置计算用于另一移动终端的BCI W1集合; 从基于PMI W2的BCI W1集合中选择BCI W2; 并将BCI W1集和BCI W2报告给基站，其中W1表示PMI和BCI的长期或宽带分量，W2表示PMI和BCI的短期或窄带分量。 在本公开中，增加了偏移BCI W1集合中包含最佳BCI W2的概率，并且减少了用于反馈BCI的开销。 T