专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20150061966A1 REFLECTARRAY AND DESIGN METHOD 有权
标题翻译：引用和设计方法
公开(公告)号：US20150061966A1
公开(公告)日：2015-03-05
申请号：US14379591
申请日：2012-12-03
申请人： NTT DOCOMO, INC.
发明人： Tamami Maruyama , Yasuhiro Oda , Hidetoshi Kayama , Ngoc Hao Tran , Jiyun Shen
IPC分类号： H01Q15/14 , G06F17/50
CPC分类号： H01Q15/148 , G06F17/50 , H01Q3/46 , H01Q15/008 , H01Q21/0018
摘要： A reflectarray reflects an incident wave in a desired direction. The reflectarray includes a substrate including a surface which is perpendicular to a predetermined axis; and at least first and second element groups, wherein the first and second element groups are disposed on the substrate, and include elements that reflect a radio wave. The first element group and the second element group reflect the radio wave with corresponding reflection phases which are different from each other. The radio wave enters while forming an angle other than 0 degrees with respect to the predetermined axis. The elements included in the first element group reflect the radio wave with a first reflection phase, and the elements included in the second element group reflect the radio wave with a second reflection phase, wherein the second reflection phase is different from the first reflection phase.
摘要翻译：反射镜反射出所需方向的入射波。反射阵列包括：基板，其包括垂直于预定轴线的表面; 以及至少第一和第二元件组，其中所述第一和第二元件组设置在所述基板上，并且包括反射无线电波的元件。第一元件组和第二元件组反射具有彼此不同的相应反射相的电波。无线电波相对于预定轴形成0度以外的角度而进入。包括在第一元件组中的元件反射具有第一反射相位的无线电波，并且包括在第二元件组中的元件反射具有第二反射相位的无线电波，其中第二反射相位与第一反射相位不同。

2. 发明申请

US20140362721A1 DETERMINATION APPARATUS FOR DETERMINING COMMUNICATION AVAILABILITY AND DETERMINATION METHOD 审中-公开
标题翻译：用于确定通信可用性和确定方法的确定装置
公开(公告)号：US20140362721A1
公开(公告)日：2014-12-11
申请号：US14372576
申请日：2013-02-20
申请人： NTT DOCOMO, INC.
发明人： Hiroki Harada , Hidetoshi Kayama
IPC分类号： H04W24/02 , H04L27/26 , H04L5/00
CPC分类号： H04W24/02 , H04L5/0023 , H04L5/0048 , H04L27/0006 , H04L27/2601 , H04L27/2647 , H04W52/0229 , H04W52/0245 , Y02D70/00 , Y02D70/1222 , Y02D70/1262 , Y02D70/1264 , Y02D70/142
摘要： A determination apparatus for determining communication availability in an Orthogonal Frequency Division Multiplexing (OFDM) scheme communication system, the determination apparatus includes a reception unit configured to receive a wireless signal including an OFDM symbol in which a pilot signal is inserted at a constant interval in a frequency axis direction, an obtaining unit configured to obtain a discrete sample signal by sampling the wireless signal, a correlation value calculation unit configured to calculate a correlation value of the discrete sample signal for a time shift amount that is defined in advance according to the constant interval, and a determination unit configured to determine the communication availability in the communication system based on at least a result of determination whether the correlation value for the time shift amount has a peak or not.
摘要翻译：一种用于确定正交频分复用（OFDM）方式通信系统中的通信可用性的确定装置，所述确定装置包括：接收单元，被配置为接收无线信号，所述无线信号包括其中导频信号以恒定间隔插入的OFDM符号频率轴方向，获取单元，被配置为通过对无线信号进行采样来获得离散采样信号;相关值计算单元，被配置为根据常数来计算预先定义的时移量的离散采样信号的相关值以及确定单元，被配置为至少基于确定时移量的相关值是否具有峰值的结果来确定通信系统中的通信可用性。

3. 发明授权

US09960875B2 Base station, communication system and method thereof 有权
公开(公告)号：US09960875B2
公开(公告)日：2018-05-01
申请号：US14682602
申请日：2015-04-09
申请人： NTT DoCoMo, Inc.
发明人： Chongning Na , Xiaolin Hou , Atsushi Harada , Hidetoshi Kayama
IPC分类号： H04J3/12 , H04J11/00 , H04B7/04 , H04B7/024 , H04B7/06 , H04W24/10 , H04B7/0456 , H04L25/03 , H04W28/06 , H04W28/16 , H04W92/20
CPC分类号： H04J11/0053 , H04B7/024 , H04B7/0456 , H04B7/0482 , H04B7/0626 , H04B7/0634 , H04L25/03904 , H04L25/0391 , H04W24/10 , H04W28/06 , H04W28/16 , H04W92/20
摘要： The present disclosure provides a base station, a communication system and a method thereof. The communication system includes three base stations adjacent to each other, and each base station serves at least one UE. The method includes: acquiring, by each base station, a channel matrix of a channel from the base station to an adjacent base station; calculating an interference alignment-based transmission precoding matrix for each base station based on the channel matrices of the channels between the base stations; and precoding, by each base station, data to be transmitted with the interference alignment-based transmission precoding matrix.

4. 发明申请

US20140221030A1 USER TERMINAL 审中-公开
标题翻译：用户终端
公开(公告)号：US20140221030A1
公开(公告)日：2014-08-07
申请号：US14251216
申请日：2014-04-11
申请人： NTT DOCOMO, INC.
发明人： Hiromasa Fujii , Hiroto Yasuda , Hiroki Harada , Shunji Miura , Hidetoshi Kayama
IPC分类号： H04W56/00 , H04W72/08
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）。

5. 发明申请

US20140112268A1 Information Transmission Method, Information Transmission Apparatus, and Base Station 有权
标题翻译：信息传输方法，信息传输装置和基站
公开(公告)号：US20140112268A1
公开(公告)日：2014-04-24
申请号：US14056313
申请日：2013-10-17
申请人： NTT DoCoMo, Inc.
发明人： Qin MU , Liu Liu , Lan Chen , Hidetoshi Kayama , Kazuaki Takeda
IPC分类号： H04W72/04
CPC分类号： H04W72/042 , H04L5/14 , H04W72/0446 , H04W88/04 , H04W88/08
摘要： The present application provides an information transmission method, an information transmission apparatus, and a base station. The information transmission method comprises: an allocation step of, according to a search space allocation mode, performing search space allocation in a target resource consisting of at least two resource subsets and allocating, for the first user, a first search space capable of transmitting the first user control information, the search space allocation mode being associated with the at least two resource subsets; and a first transmission step of transmitting the first user control information via the first search space so that the first user can acquire the first user control information from the first search space according to the search space allocation mode. According to the present invention, the resource utilization efficiency will be improved.
摘要翻译：本申请提供了一种信息传输方法，信息传输装置和基站。信息发送方法包括：分配步骤，根据搜索空间分配模式，在由至少两个资源子集组成的目标资源中执行搜索空间分配，并且为第一用户分配能够发送第一用户控制信息，所述搜索空间分配模式与所述至少两个资源子集相关联; 以及第一发送步骤，通过第一搜索空间发送第一用户控制信息，使得第一用户可以根据搜索空间分配模式从第一搜索空间获取第一用户控制信息。根据本发明，能够提高资源利用效率。

6. 发明授权

US10051490B2 Determination apparatus for determining communication availability and determination method 有权
公开(公告)号：US10051490B2
公开(公告)日：2018-08-14
申请号：US14372576
申请日：2013-02-20
申请人： NTT DOCOMO, INC.
发明人： Hiroki Harada , Hidetoshi Kayama
IPC分类号： H04W24/02 , H04W52/24 , H04L5/00 , H04L27/00 , H04L27/26 , H04W52/02
摘要： A determination apparatus for determining communication availability in an Orthogonal Frequency Division Multiplexing (OFDM) scheme communication system, the determination apparatus includes a reception unit configured to receive a wireless signal including an OFDM symbol in which a pilot signal is inserted at a constant interval in a frequency axis direction, an obtaining unit configured to obtain a discrete sample signal by sampling the wireless signal, a correlation value calculation unit configured to calculate a correlation value of the discrete sample signal for a time shift amount that is defined in advance according to the constant interval, and a determination unit configured to determine the communication availability in the communication system based on at least a result of determination whether the correlation value for the time shift amount has a peak or not.

7. 发明授权

US09620864B2 Reflectarray and design method 有权
公开(公告)号：US09620864B2
公开(公告)日：2017-04-11
申请号：US14379614
申请日：2012-12-03
申请人： NTT DOCOMO, INC.
发明人： Tamami Maruyama , Yasuhiro Oda , Hidetoshi Kayama , Ngoc Hao Tran , Jiyun Shen
IPC分类号： H01Q1/24 , H01Q19/185 , H01Q15/00 , G06F17/50 , H01Q15/14 , H01Q3/46
CPC分类号： H01Q19/185 , G06F17/5072 , H01Q3/46 , H01Q15/008 , H01Q15/0086 , H01Q15/14 , H01Q15/148
摘要： A method of designing a reflectarray including a substrate having a surface perpendicular to a predetermined axis, wherein elements are disposed on the substrate. The method obtains a reflection phase of the elements as a function of a design parameter such as element spacing, when a radio wave enters the arranged elements, and stores a relationship between the reflection phase and the design parameter in a memory. Here, the design parameter is equally set for the elements. The method repeatedly determines, for each of the elements, the design parameter of a specific element in accordance with the relationship. The function of the design parameter has a range of almost 360 degrees with respect to a range of the design parameter. The reflection phase is the continuous function of the element spacing such that two resonant points occur at which the reflection phase becomes zero.

8. 发明申请

US20150015455A1 REFLECTARRAY AND DESIGN METHOD 有权
标题翻译：引用和设计方法
公开(公告)号：US20150015455A1
公开(公告)日：2015-01-15
申请号：US14379599
申请日：2012-12-03
申请人： NTT DOCOMO, INC.
发明人： Tamami Maruyama , Yasuhiro Oda , Hidetoshi Kayama , Jiyun Shen , Ngoc Hao Tran
IPC分类号： H01Q15/14 , G06F17/50
CPC分类号： H01Q15/14 , G06F17/50 , H01Q3/46 , H01Q15/008 , H01Q15/148 , H01Q21/0018
摘要： A reflectarray reflects an incident wave in a desired direction. The reflectarray includes a substrate including a surface which is perpendicular to a predetermined axis, and elements disposed on the substrate. A specific element among the elements reflects the incident wave with a specific reflection phase among a plurality of reflection phases. Each of the elements has an element structure including, at least, a patch and a ground plate. Element spacing of first neighboring elements is different from element spacing of second neighboring elements, and a length of a gap between patches of the first neighboring elements is equal to a length of a gap between patches of the second neighboring elements.
摘要翻译：反射镜反射出所需方向的入射波。反射阵列包括包括垂直于预定轴线的表面的衬底和设置在衬底上的元件。这些元件中的特定元件反映了在多个反射相中具有特定反射相位的入射波。每个元件具有至少包括贴片和接地板的元件结构。第一相邻元件的元件间距不同于第二相邻元件的元件间隔，并且第一相邻元件的片之间的间隙的长度等于第二相邻元件的片之间的间隙的长度。

9. 发明授权

US09425512B2 Reflectarray and design method 有权
标题翻译：反射和设计方法
公开(公告)号：US09425512B2
公开(公告)日：2016-08-23
申请号：US14379599
申请日：2012-12-03
申请人： NTT DOCOMO, INC.
发明人： Tamami Maruyama , Yasuhiro Oda , Hidetoshi Kayama , Jiyun Shen , Ngoc Hao Tran
IPC分类号： H01Q19/10 , H01Q15/14 , H01Q21/00 , G06F17/50 , H01Q15/00 , H01Q3/46
CPC分类号： H01Q15/14 , G06F17/50 , H01Q3/46 , H01Q15/008 , H01Q15/148 , H01Q21/0018
摘要： A reflectarray reflects an incident wave in a desired direction. The reflectarray includes a substrate including a surface which is perpendicular to a predetermined axis, and elements disposed on the substrate. A specific element among the elements reflects the incident wave with a specific reflection phase among a plurality of reflection phases. Each of the elements has an element structure including, at least, a patch and a ground plate. Element spacing of first neighboring elements is different from element spacing of second neighboring elements, and a length of a gap between patches of the first neighboring elements is equal to a length of a gap between patches of the second neighboring elements.
摘要翻译：反射镜反射出所需方向的入射波。反射阵列包括包括垂直于预定轴线的表面的衬底和设置在衬底上的元件。这些元件中的特定元件反映了在多个反射相中具有特定反射相位的入射波。每个元件具有至少包括贴片和接地板的元件结构。第一相邻元件的元件间距不同于第二相邻元件的元件间隔，并且第一相邻元件的片之间的间隙的长度等于第二相邻元件的片之间的间隙的长度。

10. 发明授权

US09531079B2 Reflectarray and design method 有权
标题翻译：反射和设计方法
公开(公告)号：US09531079B2
公开(公告)日：2016-12-27
申请号：US14379591
申请日：2012-12-03
申请人： NTT DOCOMO, INC.
发明人： Tamami Maruyama , Yasuhiro Oda , Hidetoshi Kayama , Ngoc Hao Tran , Jiyun Shen
IPC分类号： H01Q15/14 , H01Q21/00 , H01Q15/00 , G06F17/50 , H01Q3/46
CPC分类号： H01Q15/148 , G06F17/50 , H01Q3/46 , H01Q15/008 , H01Q21/0018
摘要： A reflectarray reflects an incident wave in a desired direction. The reflectarray includes a substrate including a surface which is perpendicular to a predetermined axis; and at least first and second element groups, wherein the first and second element groups are disposed on the substrate, and include elements that reflect a radio wave. The first element group and the second element group reflect the radio wave with corresponding reflection phases which are different from each other. The radio wave enters while forming an angle other than 0 degrees with respect to the predetermined axis. The elements included in the first element group reflect the radio wave with a first reflection phase, and the elements included in the second element group reflect the radio wave with a second reflection phase, wherein the second reflection phase is different from the first reflection phase.
摘要翻译：反射镜反射出所需方向的入射波。反射阵列包括：基板，其包括垂直于预定轴线的表面; 以及至少第一和第二元件组，其中所述第一和第二元件组设置在所述基板上，并且包括反射无线电波的元件。第一元件组和第二元件组反射具有彼此不同的相应反射相的电波。无线电波相对于预定轴形成0度以外的角度而进入。包括在第一元件组中的元件反射具有第一反射相位的无线电波，并且包括在第二元件组中的元件反射具有第二反射相位的无线电波，其中第二反射相位与第一反射相位不同。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式