公开(公告)号：US08249613B2

公开(公告)日：2012-08-21

申请号：US12187087

申请日：2008-08-06

申请人： Jingxiu Liu ,  Xiaoming She ,  Lan Chen ,  Hidekazu Taoka

发明人： Jingxiu Liu ,  Xiaoming She ,  Lan Chen ,  Hidekazu Taoka

IPC分类号： H04W72/00

CPC分类号： H04L25/03343 ,  H04B7/0417 ,  H04B7/0671 ,  H04L5/0023 ,  H04L2025/03426

摘要： A method of data processing includes the steps of: dividing user terminals into groups based on channel attributes and service requirements of the user terminals and setting a precoding code word and a cyclic delay for each of the groups; and determining which group a user terminal corresponding to the data to be processed belongs to and processing the data to be processed by the Cyclic Delay Diversity (CDD) precoding based on the precoding code word and the cyclic delay of the group. A data processing apparatus includes a grouping module and a CDD preceding module. By the method and apparatus above, the signal quality in the MIMO system can be improved.

摘要翻译： 数据处理方法包括以下步骤：根据用户终端的信道属性和业务需求将用户终端划分成组，并为每个组设置预编码码字和循环延迟; 并且确定与要处理的数据相对应的用户终端属于哪个组，并且基于预编码码字和该组的循环延迟来处理由循环延迟分集（CDD）预编码处理的数据。 数据处理装置包括分组模块和CDD在前模块。 通过上述方法和装置，可以提高MIMO系统中的信号质量。

公开(公告)号：US20090052571A1

公开(公告)日：2009-02-26

申请号：US12187087

申请日：2008-08-06

申请人： Jingxiu Liu ,  Xiaoming She ,  Lan Chen ,  Hidekazu Taoka

发明人： Jingxiu Liu ,  Xiaoming She ,  Lan Chen ,  Hidekazu Taoka

IPC分类号： H04B7/02

CPC分类号： H04L25/03343 ,  H04B7/0417 ,  H04B7/0671 ,  H04L5/0023 ,  H04L2025/03426

摘要： A method of data processing includes the steps of: dividing user terminals into groups based on channel attributes and service requirements of the user terminals and setting a precoding code word and a cyclic delay for each of the groups; and determining which group a user terminal corresponding to the data to be processed belongs to and processing the data to be processed by the Cyclic Delay Diversity (CDD) precoding based on the precoding code word and the cyclic delay of the group. A data processing apparatus includes a grouping module and a CDD preceding module. By the method and apparatus above, the signal quality in the MIMO system can be improved.

摘要翻译： 数据处理方法包括以下步骤：根据用户终端的信道属性和业务需求将用户终端划分成组，并为每个组设置预编码码字和循环延迟; 并且确定与要处理的数据相对应的用户终端属于哪个组，并且基于预编码码字和该组的循环延迟来处理由循环延迟分集（CDD）预编码处理的数据。 数据处理装置包括分组模块和CDD在前模块。 通过上述方法和装置，可以提高MIMO系统中的信号质量。

公开(公告)号：US20080095258A1

公开(公告)日：2008-04-24

申请号：US11875600

申请日：2007-10-19

申请人： Xiaoming She ,  Jingxiu Liu ,  Lan Chen ,  Kenichi Higuchi

发明人： Xiaoming She ,  Jingxiu Liu ,  Lan Chen ,  Kenichi Higuchi

IPC分类号： H04L27/28

CPC分类号： H04L25/03343 ,  H04B7/0639 ,  H04B7/066 ,  H04L1/0675

摘要： A pre-coding method for a MIMO system and an apparatus using the same are described. In the method, a receiver determines a corresponding codebook from a multi-codebook including multiple codebooks according to a location of a resource block, selects a corresponding codeword index from the determined codebook and transmits the index to a transmitter; the transmitter determines the corresponding codebook from the multi-codebook including multiple codebooks according to the location of the resource block where transmission data is to be transmitted, selects a corresponding codeword from the determined codebook according to the codeword index and performs pre-coding for the transmission data with the selected codeword. The pre-coding is performed with the multi-codebook in the present invention, which increases a diversity of pre-coding matrixes, so dynamic fluctuation range of a equivalent channel is improved and thus the performance of multi-user scheduling is enhanced effectively.

摘要翻译： 对MIMO系统的预编码方法及使用该MIMO系统的装置进行说明。 在该方法中，接收机根据资源块的位置从包括多个码本的多码本中确定相应的码本，从确定的码本中选择相应的码字索引，并将该索引发送给发射机; 发射机根据发送数据的资源块的位置根据码字索引从包含多个码本的多码本中确定相应的码本，根据码字索引从所确定的码本中选择一个相应的码字，并执行预编码 传输数据与选定的码字。 利用本发明的多码本进行预编码，这增加了预编码矩阵的分集，从而提高了等效信道的动态波动范围，从而有效地提高了多用户调度的性能。

公开(公告)号：US20100039951A1

公开(公告)日：2010-02-18

申请号：US12537807

申请日：2009-08-07

申请人： Xiaoming She ,  Jingxiu Liu ,  Lan Chen

发明人： Xiaoming She ,  Jingxiu Liu ,  Lan Chen

IPC分类号： H04W72/12 ,  H04L12/26 ,  H04J3/00

CPC分类号： H04W72/1231 ,  H04B7/024 ,  H04W72/1278

摘要： The present invention provides a cooperative multi-cell transmission method that can be utilized to implement cooperative transmission in a virtual cell. Sectors composing the virtual cell are real cells and/or full sectors in real cells, any sector among the sectors composing the virtual cell is physically located adjacent to at least one of the other sectors, and each sector of the virtual cell corresponds to a real transmitting node respectively. The method includes: acquiring channel state information between any user and at least one of real transmitting nodes by a main information processing node; performing user scheduling and real transmitting node scheduling based on the channel state information by the main information processing node; and cooperatively transmitting data of one or more scheduled users based on the channel state information by one or more scheduled real transmitting nodes. The method according to an embodiment of the present invention reduces the interference and enhances the system spectral efficiency.

摘要翻译： 本发明提供了可以用于在虚拟小区中实现协作传输的协作多小区传输方法。 组成虚拟小区的扇区是实际小区中的真实小区和/或完整扇区，构成虚拟小区的扇区中的任何扇区物理上位于与其他扇区中的至少一个相邻的位置，虚拟小区的每个扇区对应于真实小区 发送节点。 该方法包括：通过主信息处理节点在任何用户和至少一个实际发送节点之间获取信道状态信息; 基于主信息处理节点的信道状态信息执行用户调度和实际发送节点调度; 并且通过一个或多个调度的实际发送节点基于信道状态信息协同地发送一个或多个调度用户的数据。 根据本发明的实施例的方法减少了干扰并提高了系统频谱效率。

公开(公告)号：US20080132282A1

公开(公告)日：2008-06-05

申请号：US11932271

申请日：2007-10-31

申请人： Jingxiu Liu ,  Xiaoming She ,  Lan Chen

发明人： Jingxiu Liu ,  Xiaoming She ,  Lan Chen

IPC分类号： H04M1/00

CPC分类号： H04B7/0671 ,  H04B7/0456 ,  H04L1/0026 ,  H04L1/0675 ,  H04L5/0023 ,  H04L25/03898 ,  H04L27/2646

摘要： Methods, systems, BS and UE for determining Cyclic Delay Diversity delay value are disclosed. One method includes obtaining an optimal CDD delay value in the precoding codebook for obtaining the best channel quality on each sub-band respectively based on a result of channel estimation and feeding back to the BS by the UE; selecting an overall CDD delay value in the precoding codebook based on the local optimal CDD delay values received from each UE by the BS; updating the CDD delay values in the precoding codebook based on the overall CDD delay value in the precoding codebook by the BS. The invention provides provide a method for determining the CDD delay value (group) in precoding system with CDD, and a relating system, a base station, and a user equipment, to realize adaptive update of the CDD delay value (group), thereby ensuring the system performance to the most extent.

摘要翻译： 公开了用于确定循环延迟分集延迟值的方法，系统，BS和UE。 一种方法包括：在预编码码本中获得最佳的CDD延迟值，用于分别基于信道估计的结果并且由UE反馈到BS来获得每个子带上的最佳信道质量; 基于由BS从每个UE接收的局部最佳CDD延迟值，在预编码码本中选择总体CDD延迟值; 基于BS在预编码码本中的总体CDD延迟值来更新预编码码本中的CDD延迟值。 本发明提供一种用于确定具有CDD的预编码系统中的CDD延迟值（组）的方法，以及相关系统，基站和用户设备，以实现CDD延迟值（组）的自适应更新，由此确保 系统性能在最大程度上。

公开(公告)号：US20140050111A1

公开(公告)日：2014-02-20

申请号：US14112265

申请日：2012-04-20

申请人： Satoshi Nagata ,  Hidekazu Taoka ,  Jianchi Zhu ,  Xiaoming She ,  Lan Chen

发明人： Satoshi Nagata ,  Hidekazu Taoka ,  Jianchi Zhu ,  Xiaoming She ,  Lan Chen

IPC分类号： H04L25/02

CPC分类号： H04L25/0202 ,  H04J11/0036 ,  H04J11/005 ,  H04L25/0204 ,  H04L25/03891

摘要： Disclosed are a receiving apparatus, a data receiving method, a channel estimating apparatus and a channel estimating method for multi-user interference (MUI) signals according to the present invention. The channel estimating apparatus for MUI signals has: a user type determining section configured to determine whether a UE apparatus corresponding to an own station belongs to a first type user or a second type user and to determine demodulation information to use in channel estimation of MUI signals based on the type of the UE apparatus corresponding to the own station; and a second channel estimating section configured to perform channel estimation of a multi-user interference signal based on the determined demodulation information to use in channel estimation of MUI signals. In the present invention, the UE apparatus is classified by type and the demodulation information to use in channel estimation of MUI signals is determined based on the type of the UE apparatus. With this structure, it is possible to improve channel estimation accuracy and further to improve the performance of data reception and user and cell throughputs.

摘要翻译： 公开了根据本发明的接收装置，数据接收方法，信道估计装置和用于多用户干扰（MUI）信号的信道估计方法。 用于MUI信号的信道估计装置具有：用户类型确定部分，用于确定与本站对应的UE装置是属于第一类用户还是第二类用户，并确定在MUI信号的信道估计中使用的解调信息 基于对应于本站的UE装置的类型; 以及第二信道估计部，被配置为基于所确定的解调信息来执行多用户干扰信号的信道估计，以在MUI信号的信道估计中使用。 在本发明中，根据类型对UE装置进行分类，并根据UE装置的种类来确定在MUI信号的信道估计中使用的解调信息。 利用这种结构，可以提高信道估计精度并进一步提高数据接收的性能和用户和小区吞吐量。

公开(公告)号：US08351386B2

公开(公告)日：2013-01-08

申请号：US12680585

申请日：2008-09-26

申请人： Hidekazu Taoka ,  Jianchi Zhu ,  Xiaoming She ,  Lan Chen

发明人： Hidekazu Taoka ,  Jianchi Zhu ,  Xiaoming She ,  Lan Chen

IPC分类号： H04W4/00

CPC分类号： H04L1/0034 ,  H04B7/0452 ,  H04B7/0634 ,  H04B7/0656 ,  H04L1/0026 ,  H04W72/1231

摘要： A base station apparatus includes a correction unit for correcting a CQI reported from a user apparatus and a scheduler for scheduling based on the corrected CQI. The correction unit uses a correction table to correct the CQI such that if the reported CQI is poor, the CQI is slightly reduced, and otherwise, the CQI is significantly reduced. One method of generating the correction table includes deriving a first SINR in consideration of the number of interference users less than (n−1) and a second SINR in consideration of the number of interference users equal to (n−1) to explore a distribution of the second SINR to the first SINR. In this method, correspondence between the first SINR and the second SINR is determined based on the distribution to generate the correction table.

摘要翻译： 基站装置包括校正单元，用于校正从用户装置报告的CQI和基于校正后的CQI进行调度的调度器。 校正单元使用校正表来校正CQI，使得如果所报告的CQI较差，则CQI略微降低，否则CQI显着降低。 一种生成校正表的方法包括考虑到小于（n-1）的干扰用户的数量和考虑到等于（n-1）的干扰用户的数量来探测分布的第二SINR，导出第一SINR 的第二SINR到第一SINR。 在该方法中，基于分配来确定第一SINR和第二SINR之间的对应关系，以产生校正表。

公开(公告)号：US08467339B2

公开(公告)日：2013-06-18

申请号：US12537807

申请日：2009-08-07

申请人： Xiaoming She ,  Jingxiu Liu ,  Lan Chen

发明人： Xiaoming She ,  Jingxiu Liu ,  Lan Chen

IPC分类号： H04W4/00

CPC分类号： H04W72/1231 ,  H04B7/024 ,  H04W72/1278

摘要： The present invention provides a cooperative multi-cell transmission method that can be utilized to implement cooperative transmission in a virtual cell. Sectors composing the virtual cell are real cells and/or full sectors in real cells, any sector among the sectors composing the virtual cell is physically located adjacent to at least one of the other sectors, and each sector of the virtual cell corresponds to a real transmitting node respectively. The method includes: acquiring channel state information between any user and at least one of real transmitting nodes by a main information processing node; performing user scheduling and real transmitting node scheduling based on the channel state information by the main information processing node; and cooperatively transmitting data of one or more scheduled users based on the channel state information by one or more scheduled real transmitting nodes. The method according to an embodiment of the present invention reduces the interference and enhances the system spectral efficiency.

摘要翻译： 本发明提供了可以用于在虚拟小区中实现协作传输的协作多小区传输方法。 组成虚拟小区的扇区是实际小区中的真实小区和/或完整扇区，构成虚拟小区的扇区中的任何扇区物理上位于与其他扇区中的至少一个相邻的位置，并且虚拟小区的每个扇区对应于真实小区 发送节点。 该方法包括：通过主信息处理节点在任何用户和至少一个实际发送节点之间获取信道状态信息; 基于主信息处理节点的信道状态信息执行用户调度和实际发送节点调度; 并且通过一个或多个调度的实际发送节点基于信道状态信息协同地发送一个或多个调度用户的数据。 根据本发明的实施例的方法减少了干扰并提高了系统频谱效率。

公开(公告)号：US20110274197A1

公开(公告)日：2011-11-10

申请号：US13099494

申请日：2011-05-03

申请人： Jianchi Zhu ,  Xiaoming She ,  Lan Chen ,  Hidekazu Taoka ,  Hirohito Suda

发明人： Jianchi Zhu ,  Xiaoming She ,  Lan Chen ,  Hidekazu Taoka ,  Hirohito Suda

IPC分类号： H04L27/28 ,  H04B7/02

CPC分类号： H04L1/0031 ,  H04B7/0413 ,  H04L1/1896 ,  H04L5/0023 ,  H04L5/0091 ,  H04L25/03866 ,  H04W72/042

摘要： The present invention provides a method for transmitting MIMO related information. The method includes: encoding MIMO related information of a user equipment (UE) by a base station, and transmitting downlink control signaling including a result of the encoding; receiving by the UE the downlink control signaling transmitted by the base station, obtaining the result of the encoding, and obtaining the MIMO related information of the UE by decoding the result of the encoding. By adopting the method, the base station is enabled to transmit MIMO related information required by the UE to the UE with small signaling overhead.

摘要翻译： 本发明提供一种用于发送MIMO相关信息的方法。 该方法包括：由基站对用户设备（UE）的MIMO相关信息进行编码，发送包括编码结果的下行控制信令; 由UE接收由基站发送的下行链路控制信令，获得编码的结果，并通过解码编码的结果来获得UE的MIMO相关信息。 通过采用该方法，能够以小的信令开销向UE发送UE所需的MIMO相关信息。

公开(公告)号：US09444652B2

公开(公告)日：2016-09-13

申请号：US14112265

申请日：2012-04-20

申请人： Satoshi Nagata ,  Hidekazu Taoka ,  Jianchi Zhu ,  Xiaoming She ,  Lan Chen

发明人： Satoshi Nagata ,  Hidekazu Taoka ,  Jianchi Zhu ,  Xiaoming She ,  Lan Chen

IPC分类号： H04L12/26 ,  H04L25/02 ,  H04J11/00 ,  H04L25/03

CPC分类号： H04L25/0202 ,  H04J11/0036 ,  H04J11/005 ,  H04L25/0204 ,  H04L25/03891

摘要： In the present disclosure, the UE apparatus is classified by type and the demodulation information to use in channel estimation of MUI signals is determined based on the type of the UE apparatus. The channel estimating apparatus for MUI signals has: a user type determining circuit that determines whether a UE apparatus corresponding to an own station belongs to a first type user or a second type user and determines demodulation information to use in channel estimation of MUI signals based on the type of the UE apparatus corresponding to the own station; and a channel estimating circuit that performs channel estimation of a multi-user interference signal based on the determined demodulation information to use in channel estimation of MUI signals. With this structure, it is possible to improve channel estimation accuracy and further to improve the performance of data reception and user and cell throughputs.

摘要翻译： 在本公开中，UE装置根据类型进行分类，并且基于UE装置的类型来确定在MUI信号的信道估计中使用的解调信息。 用于MUI信号的信道估计装置具有：用户类型确定电路，其确定与本站相对应的UE装置是属于第一类型用户还是属于第二类用户，并且基于以下方式确定用于MUI信号的信道估计的解调信息： 对应于本站的UE装置的类型; 以及信道估计电路，其基于所确定的解调信息来执行多用户干扰信号的信道估计，以在MUI信号的信道估计中使用。 利用这种结构，可以提高信道估计精度并进一步提高数据接收的性能和用户和小区吞吐量。