公开(公告)号：US20130176979A1

公开(公告)日：2013-07-11

申请号：US13822087

申请日：2011-09-01

申请人： Yusuke Ohwatari ,  Nobuhiko Miki ,  Tetsushi Abe ,  Yukihiko Okumura

发明人： Yusuke Ohwatari ,  Nobuhiko Miki ,  Tetsushi Abe ,  Yukihiko Okumura

IPC分类号： H04W72/04

CPC分类号： H04W72/046 ,  H04B7/024 ,  H04B7/0617 ,  H04B7/0634

摘要： In each Mobile terminal, channel impulse characteristics from radio base stations to the mobile terminal is calculated. In a radio communication system, under the assumption that each of the mobile terminals performs optimum receiving beamforming in order to receive a data signal from a radio base station that actually sends the data signal to the mobile terminal, optimum receiving beamforming characteristics are estimated for each mobile terminal. Each of radio base stations that share optimum receiving beamforming characteristics calculates precoding characteristics for each mobile terminal according to the optimum receiving beamforming characteristics such that main beams are directed to mobile terminals to which the radio base station sends data signals and null beams are directed to mobile terminals to which the radio base station does not send data signals.

摘要翻译： 在每个移动终端中，计算从无线基站到移动终端的信道脉冲特性。 在无线电通信系统中，在每个移动终端执行最佳接收波束成形以便从实际发送数据信号的移动终端接收来自无线电基站的数据信号的假设下，假定每个 移动终端。 共享最佳接收波束形成特性的每个无线电基站根据最佳的接收波束成形特性来计算每个移动终端的预编码特性，使得主波束被引导到无线电基站发送数据信号的移动终端，空波束被引导到移动 无线基站不发送数据信号的终端。

公开(公告)号：US08937929B2

公开(公告)日：2015-01-20

申请号：US13704250

申请日：2011-06-10

申请人： Tetsushi Abe ,  Nobuhiko Miki ,  Yusuke Ohwatari

发明人： Tetsushi Abe ,  Nobuhiko Miki ,  Yusuke Ohwatari

IPC分类号： H04W24/02 ,  H04L5/00 ,  H04W4/06 ,  H04W24/10 ,  H04W74/00 ,  H04W72/00

CPC分类号： H04W24/02 ,  H04L5/0007 ,  H04L5/005 ,  H04L5/0058 ,  H04W4/06 ,  H04W24/10 ,  H04W72/005 ,  H04W74/006

摘要： Provided are a base station apparatus, a mobile terminal apparatus and a communication control method capable of selecting a CSI-RS arrangement flexibly in accordance with a system configuration. The base station apparatus has a CSI-RS arrangement section (211) configured to arrange a CSI-RS in a resource reserved for broadcasting when a mobile terminal apparatus (10) is notified of position information of the CSI-RS by broadcasting or in a resource associated with an cell ID of a serving area when the mobile terminal apparatus (10) obtains the position of the CSI-RS based on the cell ID; an identification information generating section (212) configured to generate an identification bit for identifying whether the CSI-RS is arranged in the resource reserved for broadcasting or in the resource associated with the cell ID; and a transmission/reception section (203) configured to transmit the identification information to the mobile terminal apparatus.

摘要翻译： 提供了能够根据系统配置灵活地选择CSI-RS布置的基站装置，移动终端装置和通信控制方法。 基站装置具有CSI-RS配置部（211），被配置为当通过广播或通过广播将通知CSI-RS的位置信息通知移动终端装置（10）时，将CSI-RS布置在为广播预留的资源中 当移动终端设备（10）基于小区ID获得CSI-RS的位置时，与服务区域的小区ID相关联的资源; 识别信息生成部（212），其被配置为生成用于识别所述CSI-RS是否被布置在为广播保留的资源中或与所述小区ID相关联的资源中的识别位; 以及被配置为向所述移动终端装置发送所述识别信息的发送/接收部分（203）。

公开(公告)号：US20130223264A1

公开(公告)日：2013-08-29

申请号：US13877178

申请日：2011-10-03

申请人： Nobuhiko Miki ,  Tetsushi Abe ,  Yusuke Ohwatari ,  Satoshi Nagata

发明人： Nobuhiko Miki ,  Tetsushi Abe ,  Yusuke Ohwatari ,  Satoshi Nagata

IPC分类号： H04W24/10

CPC分类号： H04W24/10 ,  H04B17/309 ,  H04J11/005 ,  H04L1/0026 ,  H04L5/0053 ,  H04W24/02 ,  H04W72/12 ,  H04W76/28

摘要： The present invention provides a base station apparatus, a mobile terminal apparatus and a communication control method which can improve the accuracy of channel quality estimation. A communication control method includes the steps of: arranging a CSI-RS, which is a reference signal for downlink channel estimation, in resources of subframes for CSI-RS transmission; setting, in the subframes for CSI-RS transmission, resources to which the CSI-RS is allocated in neighboring areas, to be muting resources; and reporting transmission interval information, which indicates a transmission interval of subframes that are set at the same timing in a transmission cycle of a subframe for CSI-RS transmission in a subject area and in a transmission cycle of a subframe for CSI-RS transmission in the neighboring areas, to a mobile terminal apparatus.

摘要翻译： 本发明提供一种提高信道质量估计精度的基站装置，移动终端装置和通信控制方法。 通信控制方法包括以下步骤：将作为下行链路信道估计的参考信号的CSI-RS布置在用于CSI-RS传输的子帧的资源中; 在CSI-RS传输的子帧中，将CSI-RS分配给相邻区域的资源设置为静噪资源; 并且报告发送间隔信息，其指示在用于对象区域中的CSI-RS传输的子帧的发送周期中以及用于CSI-RS传输的子帧的发送周期中在相同定时设置的子帧的发送间隔 相邻区域，移动终端装置。

公开(公告)号：US09167448B2

公开(公告)日：2015-10-20

申请号：US13883300

申请日：2011-11-07

申请人： Satoshi Nagata ,  Tetsushi Abe ,  Yusuke Ohwatari ,  Nobuhiko Miki

发明人： Satoshi Nagata ,  Tetsushi Abe ,  Yusuke Ohwatari ,  Nobuhiko Miki

IPC分类号： H04W28/04 ,  H04L1/00 ,  H04W84/04 ,  H04W24/02 ,  H04L1/18 ,  H04W24/10

CPC分类号： H04W24/02 ,  H04L1/0026 ,  H04L1/007 ,  H04L1/0077 ,  H04L1/1812 ,  H04W24/10 ,  H04W28/04 ,  H04W84/045

摘要： The present invention provides a mobile terminal apparatus, a base station apparatus, and a communication control method, which allow control suitable for interference reduction in a layered network such as HetNet, and which support a next-generation mobile communication system. A mobile terminal apparatus has a receiving section (103) that receives radio frames of a lower cell, in which a protected subframe, the transmission of which by a higher cell is suppressed, and a non-protected subframe, the transmission of which by the higher cell is not suppressed, coexist, a measurement section (112) that measures reception quality from reference signals multiplexed individually on the protected subframe and the non-protected subframe, a feedback information reduction section (114) that calculates a difference value between the reception quality of the protected subframe and the reception quality of the non-protected subframe, and a transmission section (103) that reports reception quality information of the protected subframe, and the difference value calculated in the feedback information reduction section (114), to a base station apparatus (20B).

摘要翻译： 本发明提供一种移动终端装置，基站装置和通信控制方法，其允许适用于诸如HetNet的分层网络中的干扰减少的控制，并且其支持下一代移动通信系统。 一种移动终端装置具有：接收部（103），其接收下位单元的无线帧，其中受保护的子帧（其被较高小区的传输被抑制）和非保护子帧， 较高的单元不被抑制，并存，用于根据在保护的子帧和非保护子帧上单独复用的参考信号来测量接收质量的测量部分（112），反馈信息减少部分（114），其计算接收之间的差值 保护子帧的质量和非保护子帧的接收质量，以及报告保护子帧的接收质量信息的发送部（103）以及反馈信息减少部（114）中计算出的差值。 基站装置（20B）。

公开(公告)号：US20130182648A1

公开(公告)日：2013-07-18

申请号：US13817358

申请日：2011-08-16

申请人： Tetsushi Abe ,  Nobuhiko Miki ,  Yusuke Ohwatari

发明人： Tetsushi Abe ,  Nobuhiko Miki ,  Yusuke Ohwatari

IPC分类号： H04W24/02

CPC分类号： H04W24/02 ,  H04B7/024 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0048 ,  H04L5/0057 ,  H04L5/0073 ,  H04L5/0094 ,  H04W72/042

摘要： To provide a signaling method for enabling position information of muting resources to be signaled with a simplified configuration, base station apparatus and mobile terminal apparatus, the signaling method is characterized by having the steps of setting blank resources for a CSI-RS (Channel State Information-Reference Signal) that is a reference signal for downlink channel estimation, and transmitting a bitmap indicative of a position of the blank resources to a mobile terminal apparatus.

摘要翻译： 为了提供用简化配置，基站装置和移动终端装置发信号通知静音资源的位置信息的信令方法，该信令方法的特征在于具有以下步骤：为CSI-RS设置空白资源（信道状态信息 参考信号），其是用于下行链路信道估计的参考信号，并且将指示空白资源的位置的位图发送到移动终端设备。

公开(公告)号：US09313774B2

公开(公告)日：2016-04-12

申请号：US13816749

申请日：2011-08-16

申请人： Tetsushi Abe ,  Nobuhiko Miki ,  Yusuke Ohwatari

发明人： Tetsushi Abe ,  Nobuhiko Miki ,  Yusuke Ohwatari

IPC分类号： H04W4/00 ,  H04W72/04 ,  H04L5/00

CPC分类号： H04W72/04 ,  H04L5/0048 ,  H04L5/0098

摘要： To signal CSI-RS location indexes indicative of CSI-RS location positions in a resource block with high efficiency, a signaling method of CSI-RS is characterized by having the steps of locating a CSI-RS that is a reference signal for downlink channel estimation in resources for CSI-RS reserved to transmit the CSI-RS, generating a CSI-RS location index indicative of a location position of the CSI-RS located in the resources for CSI-RS, in the CSI-RS location index an index pattern varies corresponding to the number of CSI-RS ports so that an index pattern of the relatively low number of CSI-RS ports is a subset of an index pattern of the relatively high number of CSI-RS ports, and transmitting the generated CSI-RS location index to a mobile terminal apparatus.

摘要翻译： 为了以高效率向资源块中发送指示CSI-RS位置位置的CSI-RS位置索引，CSI-RS的信令方法的特征在于具有以下步骤：定位作为下行链路信道估计的参考信号的CSI-RS 在用于发送CSI-RS的CSI-RS的资源中，在CSI-RS位置索引中生成指示位于CSI-RS资源中的CSI-RS的位置位置的CSI-RS位置索引，索引模式 相应于CSI-RS端口的数量变化，使得相对较少数量的CSI-RS端口的索引模式是相对较多数量的CSI-RS端口的索引模式的子集，并且发送所生成的CSI-RS 位置索引给移动终端设备。

公开(公告)号：US09179349B2

公开(公告)日：2015-11-03

申请号：US13883308

申请日：2011-11-07

申请人： Satoshi Nagata ,  Tetsushi Abe ,  Yusuke Ohwatari ,  Nobuhiko Miki

发明人： Satoshi Nagata ,  Tetsushi Abe ,  Yusuke Ohwatari ,  Nobuhiko Miki

IPC分类号： H04W72/08 ,  H04W24/10

CPC分类号： H04W24/10 ,  H04W72/085

摘要： The present invention provides a mobile terminal apparatus, a base station apparatus, and a communication control method, which allow control suitable for interference reduction in a layered network such as HetNet, and which support a next-generation mobile communication system. A mobile terminal apparatus has a receiving section (103) that receives radio frames of a pico cell, in which a protected subframe, the transmission of which by a macro cell is suppressed, and a non-protected subframe, the transmission of which by the macro cell is not suppressed, coexist, a measurement section (112) that measures reception quality from the reference signals multiplexed individually on the protected subframe and the non-protected subframe, and a transmission section (103) that notifies two types of reception quality information of the protected subframe and the non-protected subframe, measured in the measurement section (112), to a base station apparatus (20B).

摘要翻译： 本发明提供一种移动终端装置，基站装置和通信控制方法，其允许适用于诸如HetNet的分层网络中的干扰减少的控制，并且其支持下一代移动通信系统。 一种移动终端装置具有：接收部（103），其接收微小区的无线帧，在该无线帧中，由宏小区抑制其发送的受保护子帧，以及未受保护的子帧 宏小区不被抑制，共存，从被保护子帧和非保护子帧单独复用的参考信号测量接收质量的测量部分（112）和通知两种接收质量信息的发送部分（103） 在所述测量部分（112）中测量的所述被保护子帧和所述非保护子帧被发送到基站装置（20B）。

公开(公告)号：US20130294271A1

公开(公告)日：2013-11-07

申请号：US13883308

申请日：2011-11-07

申请人： Satoshi Nagata ,  Tetsushi Abe ,  Yusuke Ohwatari ,  Nobuhiko Miki

发明人： Satoshi Nagata ,  Tetsushi Abe ,  Yusuke Ohwatari ,  Nobuhiko Miki

IPC分类号： H04W24/10

CPC分类号： H04W24/10 ,  H04W72/085

摘要： The present invention provides a mobile terminal apparatus, a base station apparatus, and a communication control method, which allow control suitable for interference reduction in a layered network such as HetNet, and which support a next-generation mobile communication system. A mobile terminal apparatus has a receiving section (103) that receives radio frames of a pico cell, in which a protected subframe, the transmission of which by a macro cell is suppressed, and a non-protected subframe, the transmission of which by the macro cell is not suppressed, coexist, a measurement section (112) that measures reception quality from the reference signals multiplexed individually on the protected subframe and the non-protected subframe, and a transmission section (103) that notifies two types of reception quality information of the protected subframe and the non-protected subframe, measured in the measurement section (112), to a base station apparatus (20B).

摘要翻译： 本发明提供一种移动终端装置，基站装置和通信控制方法，其允许适用于诸如HetNet的分层网络中的干扰减少的控制，并且其支持下一代移动通信系统。 一种移动终端装置具有：接收部（103），其接收微小区的无线帧，在该无线帧中，由宏小区抑制其发送的受保护子帧，以及未受保护的子帧 宏小区不被抑制，共存，从被保护子帧和非保护子帧单独复用的参考信号测量接收质量的测量部分（112）和通知两种接收质量信息的发送部分（103） 在所述测量部分（112）中测量的所述被保护子帧和所述非保护子帧被发送到基站装置（20B）。

公开(公告)号：US20130156015A1

公开(公告)日：2013-06-20

申请号：US13704250

申请日：2011-06-10

申请人： Tetsushi Abe ,  Nobuhiko Miki ,  Yusuke Ohwatari

发明人： Tetsushi Abe ,  Nobuhiko Miki ,  Yusuke Ohwatari

IPC分类号： H04W24/02

CPC分类号： H04W24/02 ,  H04L5/0007 ,  H04L5/005 ,  H04L5/0058 ,  H04W4/06 ,  H04W24/10 ,  H04W72/005 ,  H04W74/006

摘要： Provided are a base station apparatus, a mobile terminal apparatus and a communication control method capable of selecting a CSI-RS arrangement flexibly in accordance with a system configuration. The base station apparatus has a CSI-RS arrangement section (211) configured to arrange a CSI-RS in a resource reserved for broadcasting when a mobile terminal apparatus (10) is notified of position information of the CSI-RS by broadcasting or in a resource associated with an cell ID of a serving area when the mobile terminal apparatus (10) obtains the position of the CSI-RS based on the cell ID; an identification information generating section (212) configured to generate an identification bit for identifying whether the CSI-RS is arranged in the resource reserved for broadcasting or in the resource associated with the cell ID; and a transmission/reception section (203) configured to transmit the identification information to the mobile terminal apparatus.

摘要翻译： 提供了能够根据系统配置灵活地选择CSI-RS布置的基站装置，移动终端装置和通信控制方法。 基站装置具有CSI-RS配置部（211），被配置为当通过广播或通过广播将通知CSI-RS的位置信息通知移动终端装置（10）时，将CSI-RS布置在为广播预留的资源中 当移动终端设备（10）基于小区ID获得CSI-RS的位置时，与服务区域的小区ID相关联的资源; 识别信息生成部（212），其被配置为生成用于识别所述CSI-RS是否被布置在为广播保留的资源中或与所述小区ID相关联的资源中的识别位; 以及被配置为向所述移动终端装置发送所述识别信息的发送/接收部分（203）。

公开(公告)号：US09743384B2

公开(公告)日：2017-08-22

申请号：US13877175

申请日：2011-10-03

申请人： Satoshi Nagata ,  Yusuke Ohwatari ,  Tetsushi Abe ,  Nobuhiko Miki

发明人： Satoshi Nagata ,  Yusuke Ohwatari ,  Tetsushi Abe ,  Nobuhiko Miki

IPC分类号： H04W72/04 ,  H04W24/10 ,  H04L5/00 ,  H04W72/12

CPC分类号： H04W72/04 ,  H04L5/0048 ,  H04L5/0091 ,  H04W24/10 ,  H04W72/12

摘要： The present invention provides a base station apparatus, a mobile terminal apparatus and a communication control method which can improve the accuracy of channel quality estimation. A communication control method includes the steps of: allocating a CSI-RS (Channel State Information-Reference Signal), which is a reference signal for downlink channel estimation, in resources for the CSI-RS that are defined for CSI-RS transmission; setting muting resources in the resources for the CSI-RS; and reporting parameters to specify the CSI-RS, including at least a transmitting subframe cycle, a subframe offset and transmission power, to a mobile terminal apparatus.