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1. 发明授权

US10051489B2 Method of CSI reporting, user equipment and enode B 有权
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.

2. 发明授权

US09872279B2 Method for determining channel quality indicator, base station and user equipment therefor 有权
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.

3. 发明授权

US09743304B2 Method of feeding back MU-CQI in a communication system, transmission point device, and user equipment 有权
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.

4. 发明授权

US08995541B2 Method, mobile terminal, base station, and system for reporting best companion precoding matrix index in communication system with double codebook 有权
标题翻译：方法，移动终端，基站和系统，用于在具有双码本的通信系统中报告最佳伴随预编码矩阵索引
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。

5. 发明授权

US08825095B2 Method and system for setting reference signal in wireless communication system 有权
标题翻译：在无线通信系统中设置参考信号的方法和系统
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。

6. 发明授权

US08798195B2 Wireless communication system, base station, terminal and method of generating codebook 有权
标题翻译：无线通信系统，基站，终端和码本的生成方法
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。

7. 发明申请

US20130223549A1 METHOD, MOBILE TERMINAL, BASE STATION, AND SYSTEM FOR REPORTING BEST COMPANION PRECODING MATRIX INDEX IN COMMUNICATION SYSTEM WITH DOUBLE CODEBOOK 有权
标题翻译：方法，移动终端，基站和系统，用于报告具有双重代码的通信系统中的最佳组合预测矩阵索引
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

8. 发明申请

US20130176948A1 WIRELESS COMMUNICATION METHOD, WIRELESS COMMUNICATION TERMINAL AND BASE STATION 有权
标题翻译：无线通信方法，无线通信终端和基站
公开(公告)号：US20130176948A1
公开(公告)日：2013-07-11
申请号：US13821799
申请日：2010-11-04
申请人： Hui Tong , Ming Xu , Masayuki Hoshino , Seigo Nakao , Daichi Imamura
发明人： Hui Tong , Ming Xu , Masayuki Hoshino , Seigo Nakao , Daichi Imamura
IPC分类号： H04B7/04
CPC分类号： H04B7/0456 , H04B7/0452 , H04L1/0026 , H04L1/0027 , H04L1/0029 , H04L1/06
摘要： A wireless communication method, a terminal and a base station are provided. The method includes the step of transmitting a plurality of best companion pre-coding matrix indexs (BCIs) and corresponding delta channel quality indicators (ΔCQIs) from the terminal to the base station, wherein the period of frames for transmitting the plurality of BCIs is larger than the period of frames for transmitting a single BCI. The method, terminal and base station according to the present disclosure can greatly increase scheduling flexibility at base station side and improve MU-MIMO performance without increasing feedback overhead of channels.
摘要翻译：提供无线通信方法，终端和基站。该方法包括从终端向基站发送多个最佳伴随预编码矩阵索引（BCI）和对应的增量信道质量指示符（DeltaCQI）的步骤，其中用于发送多个BCI的帧周期较大比传输单个BCI的帧的周期。根据本公开的方法，终端和基站可以大大增加基站侧的调度灵活性，并且在不增加信道的反馈开销的情况下提高MU-MIMO性能。

9. 发明申请

US20120127952A1 METHOD AND DEVICE FOR SUPERIMPOSING REFERENCE SIGNAL AND DATA BASED ON SPACE DIVISION MULTIPLE ACCESS 有权
标题翻译：用于超级参考信号和基于空间分割多路访问的数据的方法和装置
公开(公告)号：US20120127952A1
公开(公告)日：2012-05-24
申请号：US13378124
申请日：2010-04-12
申请人： Hui Tong , Ming Xu , Masayuki Hoshino , Seigo Nakao , Daichi Imamura
发明人： Hui Tong , Ming Xu , Masayuki Hoshino , Seigo Nakao , Daichi Imamura
IPC分类号： H04W72/04
CPC分类号： H04B7/046 , H04B7/0408 , H04B7/0413
摘要： The present invention provides a method of superimposing data signals and reference signals in a space division multiple access communication system, a base station of the communication system transmitting the first layer resource block and another layer resource block to a terminal using the same time/frequency resources, reference signals in the first layer resource block and reference signals in the other layer resource block being orthogonal to each other, the method including superimposing data signals transmitted in the first layer resource block at positions of reference signals in the first layer resource block, making a spreading sequence of the superimposed data signals orthogonal to a spreading sequence of the reference signals in the first layer resource block. The present invention can effectively use resources consumed under a multiuser MIMO system and drastically improve the system performance.
摘要翻译：本发明提供了一种在空分多址通信系统中叠加数据信号和参考信号的方法，该通信系统的基站使用相同的时间/频率资源向终端发送第一层资源块和另一层资源块所述第一层资源块中的参考信号和所述另一层资源块中的参考信号彼此正交，所述方法包括将在所述第一层资源块中发送的数据信号叠加在所述第一层资源块中的参考信号的位置，与第一层资源块中的参考信号的扩展序列正交的叠加数据信号的扩展序列。本发明可以有效地利用在多用户MIMO系统下消耗的资源，并且显着提高系统性能。

10. 发明授权

US08797993B2 Method and device for superimposing reference signal and data based on space division multiple access 有权
标题翻译：基于空分多址的叠加参考信号和数据的方法和装置
公开(公告)号：US08797993B2
公开(公告)日：2014-08-05
申请号：US13378124
申请日：2010-04-12
申请人： Hui Tong , Ming Xu , Masayuki Hoshino , Seigo Nakao , Daichi Imamura
发明人： Hui Tong , Ming Xu , Masayuki Hoshino , Seigo Nakao , Daichi Imamura
IPC分类号： H04W4/00 , H04B7/04
CPC分类号： H04B7/046 , H04B7/0408 , H04B7/0413
摘要： The present invention provides a method of superimposing data signals and reference signals in a space division multiple access communication system, a base station of the communication system transmitting the first layer resource block and another layer resource block to a terminal using the same time/frequency resources, reference signals in the first layer resource block and reference signals in the other layer resource block being orthogonal to each other, the method including superimposing data signals transmitted in the first layer resource block at positions of reference signals in the first layer resource block, making a spreading sequence of the superimposed data signals orthogonal to a spreading sequence of the reference signals in the first layer resource block. The present invention can effectively use resources consumed under a multiuser MIMO system and drastically improve the system performance.
摘要翻译：本发明提供了一种在空分多址通信系统中叠加数据信号和参考信号的方法，该通信系统的基站使用相同的时间/频率资源向终端发送第一层资源块和另一层资源块所述第一层资源块中的参考信号和所述另一层资源块中的参考信号彼此正交，所述方法包括将在所述第一层资源块中发送的数据信号叠加在所述第一层资源块中的参考信号的位置，与第一层资源块中的参考信号的扩展序列正交的叠加数据信号的扩展序列。本发明可以有效地利用在多用户MIMO系统下消耗的资源，并且显着提高系统性能。

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