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1. 发明申请

US20090239570A1 METHOD FOR HANDOVER BETWEEN DIFFERENT RADIO ACCESS SCHEMES AND WIRELESS COMMUNICATION SYSTEM 有权
标题翻译：不同无线电接入方案与无线通信系统之间的切换方法
公开(公告)号：US20090239570A1
公开(公告)日：2009-09-24
申请号：US12404812
申请日：2009-03-16
申请人： Kenji KOYANAGI , Hisashi Futaki , Yoshikazu Kakura
发明人： Kenji KOYANAGI , Hisashi Futaki , Yoshikazu Kakura
IPC分类号： H04B7/00 , H04W4/00
CPC分类号： H04W36/0077 , H04W36/14 , H04W56/0005 , H04W88/06 , H04W88/10 , H04W92/20
摘要： In a wireless communication system including a plurality of base stations each supporting at least one of two or more radio access schemes and at least one mobile station capable of performing communication by using the two or more radio access schemes, before the mobile station moves from a source base station to a target base station, the target base station notifies the mobile station, via the source base station, of a transparent container containing uplink radio access information that specifies a radio access scheme enabling at least an initial connection to be made. Thus, the mobile station identifies the radio access scheme supported by the target base station from the transparent container before moving from the source base station to the target base station.
摘要翻译：在包括多个基站的无线通信系统中，每个基站支持两个或更多个无线电接入方案中的至少一个，以及至少一个能够通过使用两个或更多个无线电接入方案进行通信的移动站，在移动站从源基站到目标基站，目标基站经由源基站向移动站通知包含上行链路无线接入信息的透明容器，该无线接入信息指定能够进行至少初始连接的无线接入方案。因此，移动台在从源基站移动到目标基站之前，从透明容器识别目标基站所支持的无线接入方案。

2. 发明授权

US08285284B2 Method for handover between different radio access schemes and wireless communication system 有权
标题翻译：不同无线接入方案与无线通信系统之间切换的方法
公开(公告)号：US08285284B2
公开(公告)日：2012-10-09
申请号：US12404812
申请日：2009-03-16
申请人： Kenji Koyanagi , Hisashi Futaki , Yoshikazu Kakura
发明人： Kenji Koyanagi , Hisashi Futaki , Yoshikazu Kakura
IPC分类号： H04W36/00 , H04W4/00 , H04B7/00
CPC分类号： H04W36/0077 , H04W36/14 , H04W56/0005 , H04W88/06 , H04W88/10 , H04W92/20
摘要： In a wireless communication system including a plurality of base stations each supporting at least one of two or more radio access schemes and at least one mobile station capable of performing communication by using the two or more radio access schemes, before the mobile station moves from a source base station to a target base station, the target base station notifies the mobile station, via the source base station, of a transparent container containing uplink radio access information that specifies a radio access scheme enabling at least an initial connection to be made. Thus, the mobile station identifies the radio access scheme supported by the target base station from the transparent container before moving from the source base station to the target base station.
摘要翻译：在包括多个基站的无线通信系统中，每个基站支持两个或更多个无线电接入方案中的至少一个，以及至少一个能够通过使用两个或更多个无线接入方案进行通信的移动台，在移动台从源基站到目标基站，目标基站经由源基站向移动站通知包含上行链路无线接入信息的透明容器，该无线接入信息指定能够进行至少初始连接的无线接入方案。因此，移动台在从源基站移动到目标基站之前，从透明容器识别目标基站所支持的无线接入方案。

3. 发明授权

US08885597B2 Radio communication system and communication method 有权
标题翻译：无线电通信系统和通信方法
公开(公告)号：US08885597B2
公开(公告)日：2014-11-11
申请号：US12419557
申请日：2009-04-07
申请人： Kenji Koyanagi , Hisashi Futaki , Yoshikazu Kakura
发明人： Kenji Koyanagi , Hisashi Futaki , Yoshikazu Kakura
IPC分类号： H04W4/00 , H04W48/18 , H04W88/10
CPC分类号： H04W36/0066 , H04W36/0016 , H04W48/18 , H04W88/10
摘要： A radio communication system includes a plurality of base stations with supporting a plurality of radio access schemes. Two or more base stations support a predetermined radio access scheme in common. A mobile station makes initial connection to one of the two or more base stations according to the predetermined radio access scheme, to allow communication with the one base station.
摘要翻译：无线电通信系统包括支持多个无线电接入方案的多个基站。两个或多个基站共同地支持预定的无线电接入方案。根据预定的无线电接入方案，移动台进行到两个或多个基站之一的初始连接，以允许与一个基站进行通信。

4. 发明申请

US20090060064A1 OFDM Communication System, Method for Generating Feedback Information Thereof, and Communication Apparatus 审中-公开
标题翻译： OFDM通信系统，用于生成反馈信息的方法和通信装置
公开(公告)号：US20090060064A1
公开(公告)日：2009-03-05
申请号：US11887831
申请日：2006-04-04
申请人： Hisashi Futaki , Yoshikazu Kakura , Shousei Yoshida , Takumi Ito
发明人： Hisashi Futaki , Yoshikazu Kakura , Shousei Yoshida , Takumi Ito
IPC分类号： H04L27/28 , H04J11/00
CPC分类号： H04L5/0091 , H04L1/0026 , H04L1/0028 , H04L5/0007 , H04L5/006
摘要： An OFDM communication system which performs appropriate feedback flexibly adapted to channel states, while suppressing an amount of feedback information. The OFDM communication system has first and second communication apparatuses. In a second receiver of the second communication apparatus, a channel quality measurement part measures channel quality for each of sub-carriers. A time variation measurement part and a frequency measurement part respectively measure variation of channel quality in a time domain and a frequency domain, respectively, and output the variation of channel quality as time variation information and frequency variation information, also respectively. Based on the measured time variation information and frequency variation information, a two-dimensional control part performs two-dimensional blocking for forming two-dimensional blocks each from plural adjacent sub-carriers which are adjacent to each other in the time domain and the frequency domain. The two-dimensional control part measures and outputs channel quality of each two-dimensional block, as feedback information.
摘要翻译： OFDM通信系统，其能够在抑制反馈信息的量的同时，进行灵活地适应于信道状态的适当的反馈。 OFDM通信系统具有第一和第二通信装置。在第二通信装置的第二接收机中，信道质量测量部分测量每个子载波的信道质量。时间变化测量部分和频率测量部分别分别测量时域和频域中的信道质量的变化，并分别输出信道质量的变化作为时间变化信息和频率变化信息。基于所测量的时间变化信息和频率变化信息，二维控制部分在时域和频域中彼此相邻的多个相邻子载波中进行二维块形成二维块。二维控制部分测量并输出每个二维块的通道质量作为反馈信息。

5. 发明授权

US07822132B2 OFDM communication system 有权
标题翻译： OFDM通信系统
公开(公告)号：US07822132B2
公开(公告)日：2010-10-26
申请号：US11718510
申请日：2005-10-31
申请人： Hisashi Futaki , Yoshikazu Kakura , Shousei Yoshida , Takumi Ito
发明人： Hisashi Futaki , Yoshikazu Kakura , Shousei Yoshida , Takumi Ito
IPC分类号： H04K1/10
CPC分类号： H04L5/0094 , H04L5/0007 , H04L5/0046
摘要： N sub-carriers are grouped in units of predetermined quantities in order beginning with the one exhibiting the highest communication channel quality to generate an optimal group pattern on the reception side. Then, communication channel information is calculated for each of sub-carrier groups in the optimal group pattern or a quasi-optimal group pattern which is assumed to be closest to the optimal group pattern among a plurality of previously set group pattern candidates. Communication channel information is designated as modified communication channel information. Grouping information indicative of the optimal group pattern or quasi-optimal group pattern is combined with modified communication channel information to generate feedback information. On the transmission side, sub-carriers are grouped based on reproduced feedback information reproduced from the feedback information.
摘要翻译： N个子载波以预定量的单位被分组，从具有最高通信信道质量的一个开始，以在接收侧生成最佳组模式。然后，针对多个先前设定的组模式候选中的最佳组模式中的每一个子载波组或被假设为最接近最佳组模式的准最优组模式计算通信信道信息。通信信道信息被指定为修改的通信信道信息。将表示最佳组模式或准最佳组模式的分组信息与修改的通信信道信息组合以产生反馈信息。在发送侧，基于从反馈信息再现的再现的反馈信息对子载波进行分组。

6. 发明申请

US20080152028A1 Ofdm Communication System 有权
标题翻译： Ofdm通信系统
公开(公告)号：US20080152028A1
公开(公告)日：2008-06-26
申请号：US11718510
申请日：2005-10-31
申请人： Hisashi Futaki , Yoshikazu Kakura , Shousei Yoshida , Takumi Ito
发明人： Hisashi Futaki , Yoshikazu Kakura , Shousei Yoshida , Takumi Ito
IPC分类号： H04L27/28
CPC分类号： H04L5/0094 , H04L5/0007 , H04L5/0046
摘要： N sub-carriers are grouped in units of predetermined quantities in order beginning with the one exhibiting the highest communication channel quality to generate an optimal group pattern on the reception side. Then, communication channel information is calculated for each of sub-carrier groups in the optimal group pattern or a quasi-optimal group pattern which is assumed to be closest to the optimal group pattern among a plurality of previously set group pattern candidates. Communication channel information is designated as modified communication channel information. Grouping information indicative of the optimal group pattern or quasi-optimal group pattern is combined with modified communication channel information to generate feedback information. On the transmission side, sub-carriers are grouped based on reproduced feedback information reproduced from the feedback information.
摘要翻译： N个子载波以预定量的单位被分组，从具有最高通信信道质量的一个开始，以在接收侧生成最佳组模式。然后，针对多个先前设定的组模式候选中的最佳组模式中的每一个子载波组或被假设为最接近最佳组模式的准最优组模式计算通信信道信息。通信信道信息被指定为修改的通信信道信息。将表示最佳组模式或准最佳组模式的分组信息与修改的通信信道信息组合以生成反馈信息。在发送侧，基于从反馈信息再现的再现的反馈信息对子载波进行分组。

7. 发明申请

US20200305149A1 RESOURCE ALLOCATION METHOD, IDENTIFICATION METHOD, BASE STATION, MOBILE STATION, AND PROGRAM 审中-公开
公开(公告)号：US20200305149A1
公开(公告)日：2020-09-24
申请号：US16898708
申请日：2020-06-11
申请人： Kenji Koyanagi , Takamichi Onoue , Le Liu , Yoshikazu Kakura
发明人： Kenji Koyanagi , Takamichi Onoue , Le Liu , Yoshikazu Kakura
IPC分类号： H04W72/04 , H04L5/00
摘要： Provided is a technique capable of reporting resource block allocation information with no waste when an allocated resource block is reported, because in the current LTE downlink, the waste of the amount of resource allocation information increases in some cases since a restriction is imposed such that 37-bit fixed scheduling information is transmitted. A resource block group consisting of at least one or more resource blocks continuous on the frequency axis is allocated to a terminal, and the number of controlling signals for reporting allocation information indicating the allocated resource blocks is determined.

8. 发明授权

US09386574B2 Resource allocation method, identification method, base station, mobile station, and program 有权
标题翻译：资源分配方法，识别方法，基站，移动台和程序
公开(公告)号：US09386574B2
公开(公告)日：2016-07-05
申请号：US13000265
申请日：2009-06-19
申请人： Kenji Koyanagi , Takamichi Inoue , Le Liu , Yoshikazu Kakura
发明人： Kenji Koyanagi , Takamichi Inoue , Le Liu , Yoshikazu Kakura
IPC分类号： H04W72/04 , H04L5/00 , H04W28/06
CPC分类号： H04W72/0413 , H04L5/0039 , H04L5/0094 , H04W28/06 , H04W72/042 , H04W72/0453
摘要： Provided is a technique capable of reporting resource block allocation information with no waste when an allocated resource block is reported, because in the current LTE downlink, the waste of the amount of resource allocation information increases in some cases since a restriction is imposed such that 37-bit fixed scheduling information is transmitted. A resource block group consisting of at least one or more resource blocks continuous on the frequency axis is allocated to a terminal, and the number of controlling signals for reporting allocation information indicating the allocated resource blocks is determined.
摘要翻译：提供了当所分配的资源块被报告时能够报告资源块分配信息而不浪费的技术，因为在当前的LTE下行链路中，由于施加了限制，所以资源分配信息量的浪费在某些情况下增加，因此37 位固定调度信息被发送。将由频率轴上连续的至少一个或多个资源块组成的资源块组分配给终端，并且确定用于报告指示分配的资源块的分配信息的控制信号的数量。

9. 发明授权

US09100876B2 Synchronization system and synchronizing method for plurality of base stations and mobile station in a reverse link wireless transmission 有权
标题翻译：用于多个基站和移动台在反向链路无线传输中的同步系统和同步方法
公开(公告)号：US09100876B2
公开(公告)日：2015-08-04
申请号：US14300271
申请日：2014-06-10
申请人： Kenji Koyanagi , Yoshikazu Kakura , Jinsock Lee , Nahoko Kuroda
发明人： Kenji Koyanagi , Yoshikazu Kakura , Jinsock Lee , Nahoko Kuroda
IPC分类号： H04W36/00 , H04W36/30 , H04W56/00
CPC分类号： H04W36/0005 , H04W36/30 , H04W56/001 , H04W56/0045
摘要： There is provided a wireless communication system which can synchronize a mobile station with a destination base station in response to the mobile station determining to switch base stations. Each base station generates synchronization information to synchronize the mobile station with the base station from a reverse pilot signal received from the mobile station, generates reverse propagation quality information from the reverse pilot signal, and generates and transmits a control signal including the synchronization information and the reverse propagation quality information. A mobile station generates and transmits a reverse pilot signal, receives a signal including the control signal from each of the base stations.
摘要翻译：提供了一种无线通信系统，其可以响应于移动台确定切换基站而使移动台与目的地基站同步。每个基站产生同步信息，以从移动台接收到的反向导频信号与移动台同步基站，从反向导频信号生成反向传播质量信息，并产生并发送包括同步信息和反向传播质量信息。移动站生成并发送反向导频信号，从每个基站接收包括控制信号的信号。

10. 发明授权

US08953533B2 Wireless communication system, base station, server, wireless communication method, and program 有权
标题翻译：无线通信系统，基站，服务器，无线通信方式和程序
公开(公告)号：US08953533B2
公开(公告)日：2015-02-10
申请号：US13257809
申请日：2010-03-19
申请人： Takamichi Inoue , Kenji Koyanagi , Yoshikazu Kakura
发明人： Takamichi Inoue , Kenji Koyanagi , Yoshikazu Kakura
IPC分类号： H04W72/04 , H04W40/00 , H04W76/00 , H04B7/216 , H04B7/00 , H04B1/00 , H04L27/26 , H04L5/00 , H04W72/00
CPC分类号： H04L27/2614 , H04L5/0001 , H04L5/003 , H04L27/2613 , H04W72/00
摘要： Provided is a wireless communication technique capable of supporting communication using a single component carrier, and communication using a plurality of component carriers. The communication using the plurality of carriers comprises a processing means for performing the signal processing in accordance with each of the carriers with respect to the common signal sequence used by the plurality of carriers. The present invention makes it possible to cope with the communication employing a single component carrier and the wireless communication employing a plurality of the component carriers. Further, PAPR of the reference signals can be made small because there is no possibility that the identical CAZAC sequence is used among the component carriers when a plurality of the component carriers are employed.
摘要翻译：提供了能够支持使用单个分量载波进行通信的无线通信技术，以及使用多个分量载波的通信。使用多个载波的通信包括处理装置，用于根据多个载波使用的公共信号序列执行根据每个载波的信号处理。本发明使得可以应对采用单分量载波的通信和采用多个分量载波的无线通信。此外，当采用多个分量载波时，可以使参考信号的PAPR较小，因为在分量载波中不可能使用相同的CAZAC序列。

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