公开(公告)号：US08583134B2

公开(公告)日：2013-11-12

申请号：US12748236

申请日：2010-03-26

申请人： Xiaolin Hou ,  Zhan Zhang ,  Hidetoshi Kayama

发明人： Xiaolin Hou ,  Zhan Zhang ,  Hidetoshi Kayama

IPC分类号： H04W72/00

CPC分类号： H04B7/024 ,  H04B7/063

摘要： A method for adaptive coordinated transmission in wireless communications includes: determining more than one transmitter for performing coordinated transmission, configuring one of the more than one transmitter to be a serving transmitter with others of the more than one transmitter being cooperating transmitters, and determining more than one receiver; determining, by a cooperating transmitter, a cooperation mode according to measured signal parameters of the more than one receiver after receiving a cooperation request from the serving transmitter, and providing the cooperation mode to the serving transmitter; generating, by each of the more than one transmitter, a transmit signal corresponding to the more than one receiver according to the cooperation mode determined, and transmitting the transmit signal to each of the more than one receiver.

摘要翻译： 一种用于无线通信中的自适应协调传输的方法包括：确定多于一个发射机用于执行协调传输，将所述多于一个的发射机中的一个与多个发射机中的其他一个配置发射机配置成为服务发射机，并确定多于 一个接收器; 在从所述服务发射机接收到合作请求之后，根据所述多于一个接收机的测量信号参数，由协作发射机确定协作模式，并向所述服务发射机提供所述协作模式; 根据所确定的协作模式，生成与所述多于一个发射机相对应的发射信号，并将所述发射信号发送到所述多个接收机中的每一个。

公开(公告)号：US20110002412A1

公开(公告)日：2011-01-06

申请号：US12835654

申请日：2010-07-13

申请人： Xiaolin HOU ,  Zhan Zhang ,  Hidetoshi Kayama

发明人： Xiaolin HOU ,  Zhan Zhang ,  Hidetoshi Kayama

IPC分类号： H04B7/02

CPC分类号： H04B7/0667 ,  H04B7/0413 ,  H04B7/0691 ,  H04L27/2607

摘要： The present invention discloses a method for determining an uplink demodulation reference signal (DMRS), which includes: taking one of multiple transmit antennas in the uplink as a base transmit antenna, taking other transmit antennas as subordinating transmit antennas and setting a DMRS for the base transmit antenna; establishing DMRS subordinating relationships between the base transmit antenna and each of the subordinating transmit antennas; and setting a DMRS for each of the subordinating transmit antennas according to the DMRS of the base transmit antenna and the DMRS subordinating relationship between the base transmit antenna and each of the subordinating transmit antennas. The present invention also provides a user equipment (UE) and an uplink system for providing DMRSs for multiple transmit antennas. The method, UE and system are applicable in both SU-MIMO transmission and MU-MIMO transmission.

摘要翻译： 本发明公开了一种确定上行解调参考信号（DMRS）的方法，包括：将上行链路中的多个发射天线中的一个作为基站发射天线，以其他发射天线作为从属发射天线，并设置基带的DMRS 发射天线; 在基站发射天线与每个从属发射天线之间建立DMRS从属关系; 并且根据基站发射天线的DMRS和基站发射天线与每个从属发射天线之间的DMRS从属关系，为每个从属发射天线设置DMRS。 本发明还提供了一种用于为多个发射天线提供DMRS的用户设备（UE）和上行链路系统。 该方法，UE和系统适用于SU-MIMO传输和MU-MIMO传输。

公开(公告)号：US08861637B2

公开(公告)日：2014-10-14

申请号：US13606383

申请日：2012-09-07

申请人： Chongning Na ,  Xiaolin Hou ,  Atsushi Harada

发明人： Chongning Na ,  Xiaolin Hou ,  Atsushi Harada

IPC分类号： H04B15/00 ,  H04L25/03

CPC分类号： H04L25/03343 ,  H04B7/024 ,  H04B7/0452 ,  H04B7/0456 ,  H04L25/03898

摘要： The transmitter and a mobile terminal based on interference alignment use pre-coding and pre-decoding methods. An antenna mapping matrix is computed according to a downlink channel state information, wherein the antenna mapping matrix is used for antenna mapping for the current transmitter to perform interference alignment. A multi-cell pre-coding matrix according to the downlink channel state information and the antenna mapping matrix; a single cell multi-user pre-coding matrix and pre-coding user data using the single cell multi-user pre-coding matrix and the multi-cell pre-decoding matrix and performing an antenna mapping using the antenna mapping matrix are computed. A system which cannot use the interference alignment method directly may be transformed to use the interference alignment method directly. In addition, the interference suppression between cells and the interference management inside cells are two separate processes, in which different linear pre-coding and decoding methods may be used.

摘要翻译： 基于干扰对准的发射机和移动终端使用预编码和预解码方法。 根据下行链路信道状态信息计算天线映射矩阵，其中天线映射矩阵用于当前发射机的天线映射以执行干扰对准。 根据下行链路信道状态信息和天线映射矩阵的多小区预编码矩阵; 计算单个单元多用户预编码矩阵，并使用单小区多用户预编码矩阵和多小区预解码矩阵对用户数据进行预编码，并使用天线映射矩阵执行天线映射。 不能直接使用干扰对准方法的系统可以直接使用干扰对准方法。 此外，小区之间的干扰抑制和小区内的干扰管理是两个单独的过程，其中可以使用不同的线性预编码和解码方法。

公开(公告)号：US08432994B2

公开(公告)日：2013-04-30

申请号：US12835654

申请日：2010-07-13

申请人： Xiaolin Hou ,  Zhan Zhang ,  Hidetoshi Kayama

发明人： Xiaolin Hou ,  Zhan Zhang ,  Hidetoshi Kayama

IPC分类号： H04B7/02

CPC分类号： H04B7/0667 ,  H04B7/0413 ,  H04B7/0691 ,  H04L27/2607

摘要： The present invention discloses a method for determining an uplink demodulation reference signal (DMRS), which includes: taking one of multiple transmit antennas in the uplink as a base transmit antenna, taking other transmit antennas as subordinating transmit antennas and setting a DMRS for the base transmit antenna; establishing DMRS subordinating relationships between the base transmit antenna and each of the subordinating transmit antennas; and setting a DMRS for each of the subordinating transmit antennas according to the DMRS of the base transmit antenna and the DMRS subordinating relationship between the base transmit antenna and each of the subordinating transmit antennas. The present invention also provides a user equipment (UE) and an uplink system for providing DMRSs for multiple transmit antennas. The method, UE and system are applicable in both SU-MIMO transmission and MU-MIMO transmission.

摘要翻译： 本发明公开了一种确定上行解调参考信号（DMRS）的方法，包括：将上行链路中的多个发射天线中的一个作为基站发射天线，以其他发射天线作为从属发射天线，并设置基带的DMRS 发射天线; 在基站发射天线与每个从属发射天线之间建立DMRS从属关系; 并且根据基站发射天线的DMRS和基站发射天线与每个从属发射天线之间的DMRS从属关系，为每个从属发射天线设置DMRS。 本发明还提供了一种用于为多个发射天线提供DMRS的用户设备（UE）和上行链路系统。 该方法，UE和系统适用于SU-MIMO传输和MU-MIMO传输。

公开(公告)号：US20130058433A1

公开(公告)日：2013-03-07

申请号：US13606383

申请日：2012-09-07

申请人： Chongning NA ,  Xiaolin Hou ,  Atsushi Harada

发明人： Chongning NA ,  Xiaolin Hou ,  Atsushi Harada

IPC分类号： H04L1/00

CPC分类号： H04L25/03343 ,  H04B7/024 ,  H04B7/0452 ,  H04B7/0456 ,  H04L25/03898

摘要： The transmitter and a mobile terminal based on interference alignment use pre-coding and pre-decoding methods. An antenna mapping matrix is computed according to a downlink channel state information, wherein the antenna mapping matrix is used for antenna mapping for the current transmitter to perform interference alignment. A multi-cell pre-coding matrix according to the downlink channel state information and the antenna mapping matrix; a single cell multi-user pre-coding matrix and pre-coding user data using the single cell multi-user pre-coding matrix and the multi-cell pre-decoding matrix and performing an antenna mapping using the antenna mapping matrix are computed. A system which cannot use the interference alignment method directly may be transformed to use the interference alignment method directly. In addition, the interference suppression between cells and the interference management inside cells are two separate processes, in which different linear pre-coding and decoding methods may be used.

摘要翻译： 基于干扰对准的发射机和移动终端使用预编码和预解码方法。 根据下行链路信道状态信息计算天线映射矩阵，其中天线映射矩阵用于当前发射机的天线映射以执行干扰对准。 根据下行链路信道状态信息和天线映射矩阵的多小区预编码矩阵; 计算单个单元多用户预编码矩阵，并使用单小区多用户预编码矩阵和多小区预解码矩阵对用户数据进行预编码，并使用天线映射矩阵执行天线映射。 不能直接使用干扰对准方法的系统可以直接使用干扰对准方法。 此外，小区之间的干扰抑制和小区内的干扰管理是两个单独的过程，其中可以使用不同的线性预编码和解码方法。

公开(公告)号：US20100246524A1

公开(公告)日：2010-09-30

申请号：US12748236

申请日：2010-03-26

申请人： Xiaolin Hou ,  Zhan Zhang ,  Hidetoshi Kayama

发明人： Xiaolin Hou ,  Zhan Zhang ,  Hidetoshi Kayama

IPC分类号： H04W72/12 ,  H04L27/28

CPC分类号： H04B7/024 ,  H04B7/063

摘要： Embodiments of the present invention include a method, system and transmitter for adaptive coordinated transmission in wireless communications. The method includes: determining more than one transmitter for performing coordinated transmission, configuring one of the more than one transmitter to be a serving transmitter with others of the more than one transmitter being cooperating transmitters, and determining more than one receiver; determining, by a cooperating transmitter, a cooperation mode according to measured signal parameters of the more than one receiver after receiving a cooperation request from the serving transmitter, and providing the cooperation mode to the serving transmitter; generating, by each of the more than one transmitter, a transmit signal corresponding to the more than one receiver according to the cooperation mode determined, and transmitting the transmit signal to each of the more than one receiver. The method, system and transmitter of the present invention increase spectrum efficiency for cell edge users as much as possible while having relatively low implementation complexity.

摘要翻译： 本发明的实施例包括用于无线通信中的自适应协调传输的方法，系统和发射机。 该方法包括：确定用于执行协调传输的多于一个发射机，将所述多于一个的发射机中的一个配置为多个发射机，并且确定多于一个的接收机; 在从所述服务发射机接收到合作请求之后，根据所述多于一个接收机的测量信号参数，由协作发射机确定协作模式，并向所述服务发射机提供所述协作模式; 根据所确定的协作模式，生成与所述多于一个发射机相对应的发射信号，并将所述发射信号发送到所述多个接收机中的每一个。 本发明的方法，系统和发射机尽可能地增加小区边缘用户的频谱效率，同时具有较低的实现复杂度。