公开(公告)号：US20130336270A1

公开(公告)日：2013-12-19

申请号：US13977933

申请日：2012-01-05

申请人： Satoshi Nagata ,  Tetsushi Abe ,  Nobuhiko Miki ,  Yuuya Saitou

发明人： Satoshi Nagata ,  Tetsushi Abe ,  Nobuhiko Miki ,  Yuuya Saitou

IPC分类号： H04W72/08

CPC分类号： H04W72/082 ,  H04W16/28 ,  H04W16/32 ,  H04W72/046 ,  H04W84/045

摘要： To effectively improve the reception quality in a pico-base station, while preventing throughput of a macro-base station from significantly deteriorating, a macro-base station (M-BS) is provided with a beam generating section (35) that generates a directional beam to a macro-UE using antenna weights based on a beampattern assigned to the macro-UE existing in a macro-cell having a first coverage area, and a coordination section (36) that determines a beam pattern so that a beam pattern to the macro-UE existing in the macro-cell is a beam pattern that suppresses interference power to a pico-UE existing in a pico-cell, in assigning the beam pattern to the macro-UE existing in the macro-cell during a transmission period assigned to a pico-base station (P-BS) locally forming the pico-cell in the macro-cell.

摘要翻译： 为了有效地提高微型基站中的接收质量，在防止宏基站的吞吐量显着劣化的同时，宏基站（M-BS）设置有生成方向的波束产生部分（35） 使用基于分配给具有第一覆盖区域的宏小区中的存在于宏小区中的宏小区的波束形式的天线权重的波束到宏小区，以及协调部（36），其确定波束图案，使得对 存在于宏小区中的宏UE是在存在于微小区中的pico-UE的干扰功率的波束图案中，在分配的发送周期内将波束模式分配给存在于宏小区中的宏UE 到在宏小区中局部形成微微小区的微微基站（P-BS）。

公开(公告)号：US09265052B2

公开(公告)日：2016-02-16

申请号：US13977933

申请日：2012-01-05

申请人： Satoshi Nagata ,  Tetsushi Abe ,  Nobuhiko Miki ,  Yuuya Saitou

发明人： Satoshi Nagata ,  Tetsushi Abe ,  Nobuhiko Miki ,  Yuuya Saitou

IPC分类号： H04W4/00 ,  H04W72/08 ,  H04W16/28 ,  H04W72/04 ,  H04W16/32 ,  H04W84/04

CPC分类号： H04W72/082 ,  H04W16/28 ,  H04W16/32 ,  H04W72/046 ,  H04W84/045

摘要： To effectively improve the reception quality in a pico-base station, while preventing throughput of a macro-base station from significantly deteriorating, a macro-base station (M-BS) is provided with a beam generating section (35) that generates a directional beam to a macro-UE using antenna weights based on a beampattern assigned to the macro-UE existing in a macro-cell having a first coverage area, and a coordination section (36) that determines a beam pattern so that a beam pattern to the macro-UE existing in the macro-cell is a beam pattern that suppresses interference power to a pico-UE existing in a pico-cell, in assigning the beam pattern to the macro-UE existing in the macro-cell during a transmission period assigned to a pico-base station (P-BS) locally forming the pico-cell in the macro-cell.

摘要翻译： 为了有效地提高微型基站中的接收质量，在防止宏基站的吞吐量显着劣化的同时，宏基站（M-BS）设置有生成方向的波束产生部分（35） 使用基于分配给具有第一覆盖区域的宏小区中的存在于宏小区中的宏小区的波束形式的天线权重的波束到宏小区，以及协调部（36），其确定波束图案，使得到 存在于宏小区中的宏UE是在存在于微小区中的pico-UE的干扰功率的波束图案中，在分配的发送周期内将波束模式分配给存在于宏小区中的宏UE 到在宏小区中局部形成微微小区的微微基站（P-BS）。

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.

公开(公告)号：US09173123B2

公开(公告)日：2015-10-27

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 ,  H04L1/00 ,  H04J11/00 ,  H04W24/02 ,  H04L5/00 ,  H04B17/309 ,  H04W76/04 ,  H04W72/12

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：US20140307648A1

公开(公告)日：2014-10-16

申请号：US14238433

申请日：2012-08-14

申请人： Satoshi Nagata ,  Tetsushi Abe ,  Nobuhiko Miki ,  Xiaoming She

发明人： Satoshi Nagata ,  Tetsushi Abe ,  Nobuhiko Miki ,  Xiaoming She

IPC分类号： H04W72/04 ,  H04W72/08

CPC分类号： H04W72/0413 ,  H04B7/024 ,  H04B7/0456 ,  H04B7/0632 ,  H04B7/0639 ,  H04L1/20 ,  H04L5/0035 ,  H04L5/0057 ,  H04L5/0073 ,  H04L5/0092 ,  H04W16/32 ,  H04W52/244 ,  H04W52/40 ,  H04W72/082 ,  H04W72/085 ,  H04W84/045

摘要： The present invention is designed to reduce the influence of performance deterioration due to interference when CoMP transmission is adopted in a heterogeneous network. A user terminal measures the first reception quality in the first transmission period when a macro base station performs no transmission or reduces transmission power, and second reception quality in a second transmission period when the macro base station and low power nodes perform transmission, and transmits an uplink signal including the first reception quality and the second reception quality, to the macro base station, and the macro base station receives the uplink signal including the first reception quality and the second reception quality, and, when performing the coordinated multiple-point transmission, allocates radio resources for a user terminal that is located on an edge of a coordinated area in the first transmission period, based on the first reception quality and the second reception quality.

摘要翻译： 本发明旨在减少在异构网络中采用CoMP传输时由于干扰导致的性能恶化的影响。 当宏基站不执行传输或降低发送功率时，用户终端在第一发送周期中测量第一接收质量，在宏基站和低功率节点进行发送的第二发送周期中，测量第一接收质量，并发送 包括第一接收质量和第二接收质量的上行链路信号提供给宏基站，并且宏基站接收包括第一接收质量和第二接收质量的上行链路信号，并且当执行协调多点传输时， 基于第一接收质量和第二接收质量，在第一发送周期中为位于协调区域的边缘的用户终端分配无线电资源。

公开(公告)号：US20130343270A1

公开(公告)日：2013-12-26

申请号：US13883356

申请日：2011-11-08

申请人： Tetsushi Abe ,  Mikio Iwamura ,  Hideaki Takahashi ,  Hiroyuki Ishii ,  Satoshi Nagata ,  Naoto Ookubo ,  Nobuhiko Miki ,  Anil Umesh

发明人： Tetsushi Abe ,  Mikio Iwamura ,  Hideaki Takahashi ,  Hiroyuki Ishii ,  Satoshi Nagata ,  Naoto Ookubo ,  Nobuhiko Miki ,  Anil Umesh

IPC分类号： H04W36/00

CPC分类号： H04W36/0005 ,  H04W36/04 ,  H04W48/12 ,  H04W68/005 ,  H04W84/045

摘要： In order to assure reception of broadcast information by a user terminal handed over to a micro base station by CRE (Cell Range Expansion) and to reduce the number of transmission stopped subframes in a macro base station, the present invention provides a notification method for a user terminal to receive modification notification information for notifying modification in system information from the micro base station, the notification method including: the macro base station notifying the micro base station of a subframe pattern including a protection subframe to protect the modification notification information every a plurality of radio frames; and the micro base station notifying the user terminal of identification information of the protection subframe in the subframe pattern.

摘要翻译： 为了确保通过CRE（小区范围扩展）移交给微基站的用户终端的广播信息的接收，并且减少宏基站中的发送停止子帧的数量，本发明提供了一种通知方法， 用户终端接收用于通知来自微基站的系统信息修改的修改通知信息，所述通知方法包括：所述宏基站通知所述微基站包括保护子帧的子帧模式，以保护所述修改通知信息，每个多个 无线电帧; 并且所述微基站向所述用户终端通知所述子帧模式中的所述保护子帧的识别信息。

公开(公告)号：US20130279358A1

公开(公告)日：2013-10-24

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： H04W24/02

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：US20130084879A1

公开(公告)日：2013-04-04

申请号：US13261460

申请日：2011-04-05

申请人： Tetsushi Abe ,  Satoshi Nagata ,  Nobuhiko Miki ,  Sangiamwong Jaturong

发明人： Tetsushi Abe ,  Satoshi Nagata ,  Nobuhiko Miki ,  Sangiamwong Jaturong

IPC分类号： H04W72/08

CPC分类号： H04W72/042 ,  H04W16/16 ,  H04W24/02 ,  H04W72/082 ,  H04W72/1205 ,  H04W84/045 ,  H04W88/02 ,  H04W88/08

摘要： To provide a base station apparatus, mobile terminal apparatus and communication control method for enabling control adapted to interference inside a Heterogeneous network to be performed to support the next-generation mobile communication system, a base station apparatus (20) shares at least a part of the frequency band with another base station apparatus (40) that covers a macro-cell, covers a pico-cell (C1), is capable of transmitting a downlink transmission frame at transmission timing different from the another base station apparatus (40), and is configured to set resources, in which the downlink transmission frame undergoes interference from another downlink transmission frame including a blank period transmitted from the another base station apparatus (40), as blank resources, and assign user data to the downlink transmission frame while avoiding the blank resources.

摘要翻译： 为了提供一种基站装置，移动终端装置和通信控制方法，用于使得能够进行适应于要执行的异构网络内的干扰以支持下一代移动通信系统的控制，基站装置（20）至少共享一部分 覆盖宏小区的另一基站装置（40）的频带覆盖微微小区（C1），能够在与另一基站装置（40）不同的发送定时发送下行链路发送帧， 被配置为设置资源，其中下行链路传输帧经受来自包括从另一个基站装置（40）发送的空白周期的另一个下行链路传输帧的干扰作为空白资源，并且将用户数据分配给下行链路传输帧，同时避免 空白资源。

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）。