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1. 发明授权

US09385794B2 Mobile terminal apparatus, radio base station apparatus and radio communication method 有权
标题翻译：移动终端装置，无线基站装置和无线通信方法
公开(公告)号：US09385794B2
公开(公告)日：2016-07-05
申请号：US14002925
申请日：2012-02-21
申请人： Anass Benjebbour , Satoshi Nagata
发明人： Anass Benjebbour , Satoshi Nagata
IPC分类号： H04B7/04 , H04B7/02 , H04B7/06 , H04L25/03 , H04J11/00
CPC分类号： H04B7/0456 , H04B7/024 , H04B7/0417 , H04B7/0632 , H04B7/0639 , H04B7/0695 , H04J11/0033 , H04J11/0053 , H04J2211/005 , H04L25/03949
摘要： To provide a mobile terminal apparatus, radio base station apparatus and radio communication method that enable accurate precoding weights to be generated in coordinated multipoint transmission, a radio communication method of the invention is characterized in that a mobile terminal apparatus (10) performs channel estimation using a downlink reference signal, selects a PMI using the obtained channel estimation value, measures an IQI using at least the channel estimation value and the PMI, and transmits at least the PMI and IQI to a radio base station apparatus, and that the radio base station apparatus generates precoding weights using the PMI and IQI, and performs coordinated multipoint transmission utilizing MIMO transmission using the precoding weights.
摘要翻译：本发明的无线通信方法的特征在于，移动终端装置（10）使用以下方式进行信道估计：（1）使用无线基站装置，无线基站装置，无线通信方法，下行链路参考信号使用所获得的信道估计值来选择PMI，至少使用信道估计值和PMI来测量IQI，并且至少将PMI和IQI发送到无线电基站装置，并且无线电基站设备使用PMI和IQI生成预编码权重，并且使用预编码权重执行利用MIMO传输的协调多点传输。

2. 发明申请

US20140003272A1 MOBILE TERMINAL APPARATUS, RADIO BASE STATION APPARATUS AND RADIO COMMUNICATION METHOD 有权
标题翻译：移动终端装置，无线基站装置和无线电通信方法
公开(公告)号：US20140003272A1
公开(公告)日：2014-01-02
申请号：US14002925
申请日：2012-02-21
申请人： Anass Benjebbour , Satoshi Nagata
发明人： Anass Benjebbour , Satoshi Nagata
IPC分类号： H04B7/04
CPC分类号： H04B7/0456 , H04B7/024 , H04B7/0417 , H04B7/0632 , H04B7/0639 , H04B7/0695 , H04J11/0033 , H04J11/0053 , H04J2211/005 , H04L25/03949
摘要： To provide a mobile terminal apparatus, radio base station apparatus and radio communication method that enable accurate precoding weights to be generated in coordinated multipoint transmission, a radio communication method of the invention is characterized in that a mobile terminal apparatus (10) performs channel estimation using a downlink reference signal, selects a PMI using the obtained channel estimation value, measures an IQI using at least the channel estimation value and the PMI, and transmits at least the PMI and IQI to a radio base station apparatus, and that the radio base station apparatus generates precoding weights using the PMI and IQI, and performs coordinated multipoint transmission utilizing MIMO transmission using the precoding weights.
摘要翻译：本发明的无线通信方法的特征在于，移动终端装置（10）使用以下方式进行信道估计，即：下行链路参考信号使用所获得的信道估计值来选择PMI，至少使用信道估计值和PMI来测量IQI，并且至少将PMI和IQI发送到无线电基站装置，并且无线电基站设备使用PMI和IQI生成预编码权重，并且使用预编码权重执行利用MIMO传输的协调多点传输。

3. 发明授权

US08014464B2 Communication apparatus and communication method used in spectrum sharing environment 有权
标题翻译：在频谱共享环境中使用的通信设备和通信方法
公开(公告)号：US08014464B2
公开(公告)日：2011-09-06
申请号：US11610767
申请日：2006-12-14
申请人： Anass Benjebbour , Takahiro Asai , Hitoshi Yoshino
发明人： Anass Benjebbour , Takahiro Asai , Hitoshi Yoshino
IPC分类号： H04L27/00
CPC分类号： H04L25/03834
摘要： A communication apparatus used in a spectrum sharing environment in which multiple communication systems coexist using the same spectrum band is provided. The apparatus includes a transmission pulse shaper that performs bandwidth limitation on a pulse which is used to send data symbols; a monitoring unit that monitors in-band interference conditions from coexisting systems other than a target system to which the communication apparatus belongs, and availability of unused spectrum on adjacent channels of the target system; a controller that controls a pulse transmission period and a pulse width of the transmission pulse shaper based on the monitoring result; and a transmission unit that transmits the band-limited signal.
摘要翻译：提供了在使用相同频带的多个通信系统共存的频谱共享环境中使用的通信装置。该装置包括对用于发送数据符号的脉冲执行带宽限制的传输脉冲整形器; 监视单元，其监视来自与通信装置所属的目标系统以外的共存系统的带内干扰状况以及目标系统的相邻信道上的未使用频谱的可用性; 基于所述监视结果控制所述发送脉冲整形器的脉冲发送期间和脉冲宽度的控制器; 以及发送带限信号的发送单元。

4. 发明申请

US20110080884A1 COORDINATED TRANSMISSION METHOD, COORDINATED TRANSMISSION SYSTEM, CENTRAL STATION AND RADIO BASE STATION 有权
标题翻译：协调传输方式，协调传输系统，中心站和无线基站
公开(公告)号：US20110080884A1
公开(公告)日：2011-04-07
申请号：US12896082
申请日：2010-10-01
申请人： Yusuke Ohwatari , Anass Benjebbour , Yukihiko Okumura , Junichiro Hagiwara
发明人： Yusuke Ohwatari , Anass Benjebbour , Yukihiko Okumura , Junichiro Hagiwara
IPC分类号： H04W4/00 , H04B7/00
CPC分类号： H04B7/022 , H04W16/28
摘要： A coordinated transmission method of the invention has the steps of selecting a directional pattern corresponding to an area in which a radio terminal locates, from among a plurality of directional patterns determined respectively corresponding to a plurality of resources in frequency domains where the plurality of directional patterns is configured so that a plurality of radio base stations surrounding the area transmits, to the area, directional beams of same frequency domain resources to face one another, while not transmitting the directional beams of the same frequency domain resources using the same frequency domain resources to areas adjacent to the area, and of distributing a signal to transmit to the radio terminal according to the selected directional pattern, determining a frequency domain and directions of directional beams regarding the distributed signal, and delivering the signal to each of the plurality of radio base stations that simultaneously transmits the signal to the radio terminal.
摘要翻译：本发明的协调传输方法具有以下步骤：从分别对应于多个方向图中的多个资源的多个资源中确定的多个方向图中选择与无线电终端所在的区域相对应的方向图，被配置为使得围绕该区域的多个无线电基站将相同频域资源的定向波束面向彼此发送，同时不使用相同的频域资源发送相同频域资源的定向波束与该区域相邻的区域，并且根据所选择的方向图分发信号到无线终端，确定关于分布式信号的定向波束的频域和方向，以及将信号传送到多个无线电基站同时发送信号的站无线电终端。

5. 发明授权

US07860075B2 Transmission device and transmission method 有权
标题翻译：传输装置及传输方式
公开(公告)号：US07860075B2
公开(公告)日：2010-12-28
申请号：US11684363
申请日：2007-03-09
申请人： Anass Benjebbour , Takahiro Asai , Hitoshi Yoshino
发明人： Anass Benjebbour , Takahiro Asai , Hitoshi Yoshino
IPC分类号： H04B7/212 , H04B7/216 , H04B1/26 , H04J3/00 , H04L12/28
CPC分类号： H04L27/0008 , H04L25/03834
摘要： In the communication system, a transmission signal based on the first radio access scheme is generated, and in the communication system a transmission signal based on the second radio access scheme different from the first radio access scheme is generated. A usage status of the frequency spectrum of the transmission signal based on the first radio access scheme, as well as the known parameters of the transmission signal based on the second radio access scheme, are determined by the pulse-shaping controller. Then, the pulse-shaping controller performs control so as to pulse-shape the transmission signal based on the first radio access scheme by means of the transmit filter on the basis of the result of the above determination, or performs control so as to pulse-shape the transmission signal based on the second radio access scheme by means of the transmit filter on the basis of the result of the above determination.
摘要翻译：在通信系统中，生成基于第一无线接入方式的发送信号，在通信系统中，生成与第一无线接入方式不同的第二无线接入方式的发送信号。基于第一无线电接入方案的发送信号的频谱的使用状态以及基于第二无线电接入方案的发送信号的已知参数由脉冲整形控制器确定。然后，脉冲整形控制器基于上述判定结果，通过发送滤波器，进行基于第一无线接入方式的发送信号的脉冲形状的控制，或进行脉冲整形控制，基于上述确定的结果，通过发送滤波器，基于第二无线电接入方案来形成发送信号。

6. 发明申请

US20090280855A1 RADIO COMMUNICATION APPARATUS AND RADIO COMMUNICATION METHOD 有权
标题翻译：无线电通信设备和无线电通信方法
公开(公告)号：US20090280855A1
公开(公告)日：2009-11-12
申请号：US12432174
申请日：2009-04-29
申请人： Yusuke OHWATARI , Anass Benjebbour , Tomoyuki Ooya , Junichiro Hagiwara
发明人： Yusuke OHWATARI , Anass Benjebbour , Tomoyuki Ooya , Junichiro Hagiwara
IPC分类号： H04B7/005
CPC分类号： H04W52/346 , H04B7/0417 , H04B7/0452 , H04B7/0617 , H04B7/0619 , H04B7/0691 , H04W52/343
摘要： A disclosed radio communication apparatus includes a preceding unit configured to precode multiple streams, a splitting unit configured to split the precoded streams into two or more stream sets each including one or more streams, a sub power optimization unit configured to execute an iterative transmit power optimization algorithm on each of the split stream sets to determine respective transmit power levels for the individual stream sets, a power optimization unit configured to execute the iterative transmit power optimization algorithm by using the determined transmit power levels as initial values for the iterative transmit power optimization algorithm to determine respective transmit power levels for the individual streams, and a transmission unit configured to transmit radio signals from individual transmit antennas at the determined transmit power levels.
摘要翻译：所公开的无线电通信装置包括：预配置多个流的前一单元，分配单元，被配置为将预编码流分为两个或更多个流集合，每个流集合包括一个或多个流;子功率优化单元，被配置为执行迭代发射功率优化分配流集合中的每一个的算法，以确定各个流集合的相应发射功率电平;功率优化单元，被配置为通过使用所确定的发射功率电平作为迭代发射功率优化算法的初始值来执行迭代发射功率优化算法以确定各个流的各个发射功率电平;以及传输单元，被配置为以确定的发射功率电平从各个发射天线发射无线电信号。

7. 发明授权

US08891656B2 Low-complexity, rank extendable, codebook design and method for supporting precoding matrix feedback for multi-user and single-user MIMO systems 有权
标题翻译：用于支持多用户和单用户MIMO系统的预编码矩阵反馈的低复杂度，等级可扩展，码本设计和方法
公开(公告)号：US08891656B2
公开(公告)日：2014-11-18
申请号：US13555973
申请日：2012-07-23
申请人： Anass Benjebbour , Sean A. Ramprashad
发明人： Anass Benjebbour , Sean A. Ramprashad
IPC分类号： H04L1/02 , H04B7/04 , H04L25/03
CPC分类号： H04B7/0469 , H04B7/0486 , H04L25/03898
摘要： A wireless communication method includes a mobile terminal for supporting precoding matrix feedback for multi-user and single-user multiple-input and multiple-output (MIMO) systems. The wireless communication method also includes obtaining, at the mobile terminal, channel state information comprising at least gain information and relative-phase information. Further, the method includes generating precoding matrices comprising bg, p1, p2, and p3 bit groups, wherein each of the precoding matrices are generated by quantization using at least the gain information and the relative-phase information between antenna elements. The method also includes selecting the best precoding matrix among the generated precoding matrices, and transmitting the bit sequence representing the selected precoding matrix to a base station.
摘要翻译：无线通信方法包括用于支持用于多用户和单用户多输入多输出（MIMO）系统的预编码矩阵反馈的移动终端。无线通信方法还包括在移动终端处获得至少包括增益信息和相对相位信息的信道状态信息。此外，该方法包括生成包括bg，p1，p2和p3位组的预编码矩阵，其中每个预编码矩阵通过至少使用天线元件之间的增益信息和相对相位信息的量化来生成。该方法还包括在所生成的预编码矩阵中选择最佳预编码矩阵，并将表示所选择的预编码矩阵的比特序列发送到基站。

8. 发明授权

US08787279B2 Radio communication system, centralized station, control station apparatus, radio base station and coordinated transmission method for determining an assignment of cluster patterns 有权
标题翻译：无线电通信系统，集中站，控制站装置，无线基站以及用于确定集群模式分配的协调传输方法
公开(公告)号：US08787279B2
公开(公告)日：2014-07-22
申请号：US13191645
申请日：2011-07-27
申请人： Anass Benjebbour , Yukihiko Okumura , Yusuke Ohwatari
发明人： Anass Benjebbour , Yukihiko Okumura , Yusuke Ohwatari
IPC分类号： H04W28/04
CPC分类号： H04W16/12 , H04W16/10 , H04W16/28
摘要： The radio communication system of the present invention is provided with a cluster pattern determining section that determines the assignment of each cluster pattern to each cluster so as to suppress inter-cluster interference with other neighboring clusters less than or equal to a predetermined value, the cluster pattern is defining a directional pattern of which directional beams emitted from the respective radio base stations face each other for each identical frequency block between neighboring sectors in a cluster composed of neighboring cells, the each cluster pattern being in different combinations of directional patterns and frequency blocks.
摘要翻译：本发明的无线电通信系统具有：群集模式确定部，其确定每个群集模式对每个群集的分配，以便抑制与小于或等于预定值的其他相邻群的簇间干扰;群集模式定义了从各个无线电基站发射的定向波束对于由相邻小区组成的群集中的相邻扇区之间的每个相同频率块彼此面对的方向模式，每个簇模式处于方向模式和频率块的不同组合。

9. 发明申请

US20130107915A1 LOW-COMPLEXITY, RANK EXTENDABLE, CODEBOOK DESIGN AND METHOD FOR SUPPORTING PRECODING MATRIX FEEDBACK FOR MULTI-USER AND SINGLE-USER MIMO SYSTEMS 有权
标题翻译：用于多用户和单用户MIMO系统的低复杂度，可扩展性，代码簿设计和支持预编码矩阵反馈的方法
公开(公告)号：US20130107915A1
公开(公告)日：2013-05-02
申请号：US13555973
申请日：2012-07-23
申请人： Anass Benjebbour , Sean A. Ramprashad
发明人： Anass Benjebbour , Sean A. Ramprashad
IPC分类号： H04L27/00 , H04B1/38
CPC分类号： H04B7/0469 , H04B7/0486 , H04L25/03898
摘要： A wireless communication method includes a mobile terminal for supporting precoding matrix feedback for multi-user and single-user multiple-input and multiple-output (MIMO) systems. The wireless communication method also includes obtaining, at the mobile terminal, channel state information comprising at least gain information and relative-phase information. Further, the method includes generating precoding matrices comprising bg, p1, p2, and p3 bit groups, wherein each of the precoding matrices are generated by quantization using at least the gain information and the relative-phase information between antenna elements. The method also includes selecting the best precoding matrix among the generated precoding matrices, and transmitting the bit sequence representing the selected precoding matrix to a base station.
摘要翻译：无线通信方法包括用于支持用于多用户和单用户多输入多输出（MIMO）系统的预编码矩阵反馈的移动终端。无线通信方法还包括在移动终端处获得至少包括增益信息和相对相位信息的信道状态信息。此外，该方法包括生成包括bg，p1，p2和p3位组的预编码矩阵，其中每个预编码矩阵通过至少使用天线元件之间的增益信息和相对相位信息的量化来生成。该方法还包括在所生成的预编码矩阵中选择最佳预编码矩阵，并将表示所选择的预编码矩阵的比特序列发送到基站。

10. 发明授权

US08126498B2 Radio communication apparatus and radio communication method 有权
公开(公告)号：US08126498B2
公开(公告)日：2012-02-28
申请号：US12432230
申请日：2009-04-29
申请人： Yusuke Ohwatari , Anass Benjebbour , Tomoyuki Ooya , Junichiro Hagiwara
发明人： Yusuke Ohwatari , Anass Benjebbour , Tomoyuki Ooya , Junichiro Hagiwara
IPC分类号： H04B7/00
摘要： A disclosed radio communication apparatus includes a precoding unit, a optimum transmit power calculation unit and a transmission unit. The optimum transmit power calculation unit receives the transmit weight related information from the precoding unit and calculates a transmit power level to optimize an objective function in accordance with an interior point method. The objective function results from addition of a barrier function adjusted with a barrier parameter to an original objective function associated with a constrained optimization problem. The original objective function includes a function of respective channel capacities for individual users derived from the transmit weight related information. The optimum transmit power calculation unit adaptively updates a logarithm of the barrier parameter and uses a gradient obtained through a high-order derivative with the logarithm of the barrier parameter to calculate the transmit power level to optimize the resulting objective function.

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