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：US07729666B2

公开(公告)日：2010-06-01

申请号：US11648349

申请日：2006-12-28

申请人： Zhan Zhang ,  Hidetoshi Kayama

发明人： Zhan Zhang ,  Hidetoshi Kayama

IPC分类号： H04W24/00

CPC分类号： H04L5/006 ,  H04L1/0606 ,  H04L5/0023 ,  H04L5/0025 ,  H04L5/0044

摘要： Embodiments of the present invention include a system and method of dynamic space-frequency-division multiple-access for the uplink from terminals to a base-station. The system includes a base-station and multiple terminals. According to different spatial mapping modes, the base-station performs an optimization computation using an optimization function in order to obtain control information for controlling terminals; after receiving the control information, the user terminal controls the transmitting mode using this control information. The method includes the following operations: at the base-station, performing an optimization computation using an optimization function according to different spatial mapping modes respectively, in order to obtain control information for controlling terminals; at the user terminal, controlling a transmitting mode using the control information after receiving the above control information. An embodiment of the present invention can achieve a higher system capacity by balancing resource allocation among different users in a domain of transmission power, bandwidth and spatial channels.

摘要翻译： 本发明的实施例包括从终端到基站的上行链路的动态空分多址的系统和方法。 该系统包括一个基站和多个终端。 根据不同的空间映射模式，基站使用优化函数进行优化计算，以获得控制终端的控制信息; 在接收到控制信息之后，用户终端使用该控制信息来控制发送模式。 该方法包括以下操作：在基站，分别根据不同的空间映射模式，使用优化函数进行优化计算，以获得控制终端的控制信息; 在用户终端，在接收到上述控制信息之后，使用控制信息控制发送模式。 本发明的实施例可以通过平衡发射功率，带宽和空间信道的不同用户之间的资源分配来实现更高的系统容量。

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。

公开(公告)号：US20070291640A1

公开(公告)日：2007-12-20

申请号：US11648349

申请日：2006-12-28

申请人： Zhan Zhang ,  Hidetoshi Kayama

发明人： Zhan Zhang ,  Hidetoshi Kayama

IPC分类号： H04J11/00

CPC分类号： H04L5/006 ,  H04L1/0606 ,  H04L5/0023 ,  H04L5/0025 ,  H04L5/0044

摘要： Embodiments of the present invention include a system and method of dynamic space-frequency-division multiple-access for the uplink from terminals to a base-station. The system includes a base-station and multiple terminals. According to different spatial mapping modes, the base-station performs an optimization computation using an optimization function in order to obtain control information for controlling terminals; after receiving the control information, the user terminal controls the transmitting mode using this control information. The method includes the following operations: at the base-station, performing an optimization computation using an optimization function according to different spatial mapping modes respectively, in order to obtain control information for controlling terminals; at the user terminal, controlling a transmitting mode using the control information after receiving the above control information. An embodiment of the present invention can achieve a higher system capacity by balancing resource allocation among different users in a domain of transmission power, bandwidth and spatial channels.

摘要翻译： 本发明的实施例包括从终端到基站的上行链路的动态空分多址的系统和方法。 该系统包括一个基站和多个终端。 根据不同的空间映射模式，基站使用优化函数进行优化计算，以获得控制终端的控制信息; 在接收到控制信息之后，用户终端使用该控制信息来控制发送模式。 该方法包括以下操作：在基站，分别根据不同的空间映射模式，使用优化函数进行优化计算，以获得控制终端的控制信息; 在用户终端，在接收到上述控制信息之后，使用控制信息控制发送模式。 本发明的实施例可以通过平衡发射功率，带宽和空间信道的不同用户之间的资源分配来实现更高的系统容量。

公开(公告)号：US20070206699A1

公开(公告)日：2007-09-06

申请号：US11713230

申请日：2007-03-01

申请人： Chunlin Yan ,  Zhan Zhang ,  Hidetoshi Kayama

发明人： Chunlin Yan ,  Zhan Zhang ,  Hidetoshi Kayama

IPC分类号： H04L1/02

CPC分类号： H04L1/0009 ,  H04L1/0003 ,  H04L1/0016 ,  H04L1/0026 ,  H04L1/0637

摘要： Embodiments of the present invention provides an adaptive space-time coding and modulation method and a transmitter. In one embodiment, the method includes: obtaining a curve corresponding to a modulation mode, a channel coding rate, a coding mode of a space-time code, a parameter indicating signal transmission quality and SNR by simulating or measuring at transmit-side and making a table with correspondences between the SNR, the modulation mode and the coding mode of the space-time code according to a SNR range corresponding to a predefined signal transmission quality. Higher frequency spectrum efficiency can be achieved with the quality of service guaranteed.

摘要翻译： 本发明的实施例提供一种自适应时空编码和调制方法以及发射机。 在一个实施例中，该方法包括：通过在发送侧进行模拟或测量，获得对应于调制模式，信道编码率，空时码的编码模式，指示信号传输质量和SNR的参数的曲线， 根据与预定义的信号传输质量相对应的SNR范围的空时码的SNR，调制模式和编码模式之间的对应关系的表。 随着服务质量的保证，可以实现更高的频谱效率。

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：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：US09184508B2

公开(公告)日：2015-11-10

申请号：US13882826

申请日：2012-08-15

申请人： Tamami Maruyama ,  Yasuhiro Oda ,  Jiyun Shen ,  Ngoc Hao Tran ,  Hidetoshi Kayama

发明人： Tamami Maruyama ,  Yasuhiro Oda ,  Jiyun Shen ,  Ngoc Hao Tran ,  Hidetoshi Kayama

IPC分类号： H01Q15/14 ,  H01Q3/46 ,  H01Q15/00 ,  H01Q1/24

CPC分类号： H01Q15/14 ,  H01Q1/246 ,  H01Q3/46 ,  H01Q15/008

摘要： A multi-beam reflectarray includes two or more element arrays including plural elements aligned along a predetermined direction. The multi-beam reflectarray is such that, in each of a first element group and a second element group included in at least one of the element arrays, a difference between phases of radio waves reflected by corresponding two elements is in proportion to a first product of a distance between the two elements and a value of a trigonometric function with respect to an angle of reflection by the two elements, and a distance between neighboring elements in the first element group is equal to a product of a rational number and a distance between neighboring elements in the second element group.

摘要翻译： 多光束反射阵列包括两个或更多个元件阵列，其包括沿预定方向排列的多个元件。 多光束反射阵列使得在包括在元件阵列中的至少一个元件阵列中的第一元件组和第二元件组的每一个中，由相应的两个元件反射的无线电波的相位之间的差与第一产品成比例 两个元件之间的距离和相对于两个元件的反射角度的三角函数的值，并且第一元件组中的相邻元件之间的距离等于有理数量与第一元件组之间的距离的乘积 第二个元素组中的相邻元素。

公开(公告)号：US08903404B2

公开(公告)日：2014-12-02

申请号：US13361318

申请日：2012-01-30

申请人： Hiromasa Fujii ,  Hiroto Yasuda ,  Hiroki Harada ,  Shunji Miura ,  Hidetoshi Kayama

发明人： Hiromasa Fujii ,  Hiroto Yasuda ,  Hiroki Harada ,  Shunji Miura ,  Hidetoshi Kayama

IPC分类号： H04W36/00 ,  H04B1/10 ,  H04W16/14 ,  H04B1/00 ,  H04W88/08 ,  H04W28/04 ,  H04W74/08 ,  H04W56/00

CPC分类号： H04W16/14 ,  H04B1/005 ,  H04B1/1027 ,  H04W28/04 ,  H04W56/00 ,  H04W72/082 ,  H04W74/0833 ,  H04W88/08

摘要： A CRS base station (21) includes a transmitting section configured to transmit a synchronization establishment signal, a receiving section configured to receive a random access signal corresponding to the synchronization establishment signal, a determining section configured to determine whether or not the random access signal received by the receiving section has been transmitted from an MCS terminal (12) and an interference reduction processing section configured to perform interference reduction processing on the MCS terminal (12) when the determining section determines that the random access signal has been transmitted from the MCS terminal (12).

摘要翻译： CRS基站（21）包括：发送部，被配置为发送同步建立信号;接收部，被配置为接收与所述同步建立信号对应的随机接入信号;判定部，被配置为判定接收到的随机接入信号 接收部分已从MCS终端（12）和干扰减少处理部分发送，该干扰减少处理部分被配置为当MCS终端（12）确定随机接入信号已经从MCS终端发送时对MCS终端（12）进行干扰减少处理 （12）。

公开(公告)号：US20120214525A1

公开(公告)日：2012-08-23

申请号：US13361318

申请日：2012-01-30

申请人： Hiromasa FUJII ,  Hiroto Yasuda ,  Hiroki Harada ,  Shunji Miura ,  Hidetoshi Kayama

发明人： Hiromasa FUJII ,  Hiroto Yasuda ,  Hiroki Harada ,  Shunji Miura ,  Hidetoshi Kayama

IPC分类号： H04W56/00 ,  H04W72/04 ,  H04W88/08 ,  H04W74/08 ,  H04W88/02

CPC分类号： H04W16/14 ,  H04B1/005 ,  H04B1/1027 ,  H04W28/04 ,  H04W56/00 ,  H04W72/082 ,  H04W74/0833 ,  H04W88/08

摘要： A CRS base station (21) includes a transmitting section configured to transmit a synchronization establishment signal, a receiving section configured to receive a random access signal corresponding to the synchronization establishment signal, a determining section configured to determine whether or not the random access signal received by the receiving section has been transmitted from an MCS terminal (12) and an interference reduction processing section configured to perform interference reduction processing on the MCS terminal (12) when the determining section determines that the random access signal has been transmitted from the MCS terminal (12).

摘要翻译： CRS基站（21）包括：发送部，被配置为发送同步建立信号;接收部，被配置为接收与所述同步建立信号对应的随机接入信号;判定部，被配置为判定接收到的随机接入信号 接收部分已从MCS终端（12）和干扰减少处理部分发送，该干扰减少处理部分被配置为当MCS终端（12）确定随机接入信号已经从MCS终端发送时对MCS终端（12）进行干扰减少处理 （12）。