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. 发明授权

US08761678B2 Radio transmitting method and apparatus, and radio receiving method and apparatus 失效
标题翻译：无线发送方法和装置，以及无线接收方法和装置
公开(公告)号：US08761678B2
公开(公告)日：2014-06-24
申请号：US12050560
申请日：2008-03-18
申请人： Koji Akita , Noritaka Deguchi , Ren Sakata , Koichiro Ban
发明人： Koji Akita , Noritaka Deguchi , Ren Sakata , Koichiro Ban
IPC分类号： H04B1/00
CPC分类号： H04B7/0634
摘要： A radio transmitting apparatus includes a storage unit configured to store a plurality of weight sequence sets, which are each assigned to a plurality of transmission blocks sectioned by time axes and frequency axes, by associating the plurality of weight sequence sets with the plurality of transmission blocks, a first selecting unit configured to select one transmission block from the plurality of transmission blocks, a second selecting unit configured to select one weight sequence from one weight sequence set assigned to the one transmission block signal, a converting unit configured to convert a data signal by using the one weight sequence to generate a converted signal, and a transmitting unit configured to transmit the converted signal by using the one transmission block.
摘要翻译：无线发送装置包括存储单元，其被配置为通过将多个加权序列集合与多个发送块相关联来存储分配给由时间轴和频率轴分割的多个发送块的多个加权序列集合第一选择单元，被配置为从所述多个发送块中选择一个发送块;第二选择单元，被配置为从分配给所述一个发送块信号的一个权重序列集中选择一个权重序列;转换单元，被配置为将数据信号通过使用一个加权序列来生成转换的信号，以及发送单元，被配置为通过使用一个发送块来发送转换的信号。

2. 发明授权

US08385851B2 Radio communication method, radio transmission apparatus and receiving apparatus 失效
标题翻译：无线通信方法，无线发送装置和接收装置
公开(公告)号：US08385851B2
公开(公告)日：2013-02-26
申请号：US11854070
申请日：2007-09-12
申请人： Ren Sakata , Koji Akita , Koichiro Ban , Noritaka Deguchi
发明人： Ren Sakata , Koji Akita , Koichiro Ban , Noritaka Deguchi
IPC分类号： H03C7/02
CPC分类号： H04B7/12 , H04L1/04 , H04L1/06 , Y02D70/442
摘要： A radio communication method includes generating a first transmit RF signal and a second transmit RF signal from a data signal to be transmitted. Each of the first and second transmit RF signals have a power spectrum in symmetric shape in the frequency domain. The first transmit RF signal and the second transmit RF signal are transmitted at a different time. The first transmit RF signal and the second transmit RF signal are received to generate a first received RF signal and a second received RF signal. The data signal from the first received RF signal and the second received RF signal are reproduced.
摘要翻译：无线电通信方法包括从要发送的数据信号产生第一发射RF信号和第二发射RF信号。第一和第二发射RF信号中的每一个在频域具有对称形状的功率谱。第一发射RF信号和第二发射RF信号在不同的时间发射。接收第一发射RF信号和第二发射RF信号以产生第一接收RF信号和第二接收RF信号。来自第一接收RF信号和第二接收RF信号的数据信号被再现。

3. 发明申请

US20080227389A1 RADIO COMMUNICATION METHOD, RADIO TRANSMISSION APPARATUS AND RECEIVING APPARATUS 失效
标题翻译：无线电通信方法，无线电传输设备和接收设备
公开(公告)号：US20080227389A1
公开(公告)日：2008-09-18
申请号：US11854070
申请日：2007-09-12
申请人： Ren Sakata , Koji Akita , Koichiro Ban , Noritaka Deguchi
发明人： Ren Sakata , Koji Akita , Koichiro Ban , Noritaka Deguchi
IPC分类号： H04B1/02 , H04B1/00 , H04B7/24
CPC分类号： H04B7/12 , H04L1/04 , H04L1/06 , Y02D70/442
摘要： A radio communication method including, generating a first transmit RF signal and a second transmit RF signal from a data signal to be transmitted, each of the first and second transmit RF signals having a power spectrum in symmetric shape in the frequency domain, transmitting the first transmit RF signal and the second transmit RF signal at a different time, receiving the first transmit RF signal and the second transmit RF signal to generate a first received RF signal and a second received RF signal, and reproducing the data signal from the first received RF signal and the second received RF signal.
摘要翻译：一种无线电通信方法，包括：从要发送的数据信号产生第一发射RF信号和第二发射RF信号，所述第一和第二发射RF信号中的每一个在频域中具有对称形状的功率谱，在不同的时间发射RF信号和第二发射RF信号，接收第一发射RF信号和第二发射RF信号以产生第一接收RF信号和第二接收RF信号，并且从第一接收RF再现数据信号信号和第二个接收的RF信号。

4. 发明授权

US07808885B2 Method of transmitting OFDM signal and transmitter and receiver thereof 有权
标题翻译：发送OFDM信号的方法及其发射机和接收机
公开(公告)号：US07808885B2
公开(公告)日：2010-10-05
申请号：US11776576
申请日：2007-07-12
申请人： Koji Akita , Noritaka Deguchi
发明人： Koji Akita , Noritaka Deguchi
IPC分类号： H04J11/00
CPC分类号： H04L25/0232 , H04B7/022 , H04L5/0007 , H04L5/0044 , H04L5/0048 , H04L25/03866 , H04L27/2613 , H04L2025/03414 , H04L2025/03426
摘要： An OFDM transmitter includes, a data signal generator which generates a data signal by modulating a bit string obtained by channel coding, a pilot signal generator which generates a pilot signal, an allocation unit which allocates the pilot signal and data signal to a pilot subcarrier and a data subcarrier, a multiplier which multiples the first pilot signal and the first data signal by complex numbers for subcarrier group formed of specific pilot subcarrier of the pilot subcarriers and specific data subcarrier of the data subcarriers, a modulator which performs OFDM modulation on the second pilot signal and the second data signal to generate an OFDM signal, and a transmitting unit which transmits the OFDM signal.
摘要翻译： OFDM发送器包括：数据信号发生器，其通过调制通过信道编码获得的比特串生成数据信号;产生导频信号的导频信号发生器;分配导频信号和数据信号到导频子载波的分配单元，数据副载波，乘法器，用于将第一导频信号和第一数据信号乘以由导频子载波的特定导频子载波和数据子载波的特定数据副载波形成的副载波组的复数;对第二导频信号执行OFDM调制的调制器导频信号和第二数据信号以产生OFDM信号，以及发送单元，发送OFDM信号。

5. 发明申请

US20100157786A1 BASE STATION, RADIO TERMINAL AND RADIO COMMUNICATION METHOD 有权
标题翻译：基站，无线终端和无线电通信方法
公开(公告)号：US20100157786A1
公开(公告)日：2010-06-24
申请号：US11814960
申请日：2007-03-09
申请人： Koji Akita , Koichiro Ban
发明人： Koji Akita , Koichiro Ban
IPC分类号： H04J11/00 , H04L27/28
CPC分类号： H04L27/2602 , H04L5/023 , H04L27/2657
摘要： According to an aspect of the present invention, there is provided with a radio communication method using an OFDMA scheme for uplink communication from a plurality of radio terminals to a base station, including: detecting communication states of the radio terminals; and arranging null subcarriers between subcarriers used by the radio terminals to which frequency bands neighboring on the frequency domain are assigned, depending on the communication states of the radio terminals.
摘要翻译：根据本发明的一个方面，提供了一种使用OFDMA方案的从多个无线终端到基站的上行链路通信的无线通信方法，包括：检测无线终端的通信状态; 并且根据无线终端的通信状态，在被分配了与频域相邻的频带的无线终端使用的子载波之间排列无效的副载波。

6. 发明授权

US08094553B2 Base station, radio terminal and radio communication method 有权
标题翻译：基站，无线终端和无线电通信方式
公开(公告)号：US08094553B2
公开(公告)日：2012-01-10
申请号：US11814960
申请日：2007-03-09
申请人： Koji Akita , Koichiro Ban
发明人： Koji Akita , Koichiro Ban
IPC分类号： H04B7/208 , H04J3/22
CPC分类号： H04L27/2602 , H04L5/023 , H04L27/2657
摘要： According to an aspect of the present invention, there is provided with a radio communication method using an OFDMA scheme for uplink communication from a plurality of radio terminals to a base station, including: detecting communication states of the radio terminals; and arranging null subcarriers between subcarriers used by the radio terminals to which frequency bands neighboring on the frequency domain are assigned, depending on the communication states of the radio terminals.
摘要翻译：根据本发明的一个方面，提供了一种使用OFDMA方案的从多个无线终端到基站的上行链路通信的无线通信方法，包括：检测无线终端的通信状态; 并且根据无线终端的通信状态，在被分配了与频域相邻的频带的无线终端使用的子载波之间排列无效的副载波。

7. 发明授权

US08116398B2 Transmission method, transmitter, and receiver for multi antenna wireless communication system 有权
标题翻译：多天线无线通信系统的传输方式，发射机和接收机
公开(公告)号：US08116398B2
公开(公告)日：2012-02-14
申请号：US11838255
申请日：2007-08-14
申请人： Ren Sakata , Koji Akita
发明人： Ren Sakata , Koji Akita
IPC分类号： H04B7/02
CPC分类号： H04B7/06 , H04B7/0413 , H04B7/0613 , H04B7/0671 , H04B7/0684 , H04L27/2602 , H04L27/2626
摘要： A transmitter includes first generator to generate pilot source signal by modulating pilot sequence, second generator to generate data source signal with time length longer than that of pilot source signal by modulating data sequence, first cyclic shifter to perform cyclic shift of first shift amount to pilot source signal to generate first pilot signal, second cyclic shifter to performs cyclic shift of second shift amount to data source signal to generate first data signal, third cyclic shifter to perform cyclic shift of third shift amount to pilot source signal to generate second pilot signal, fourth cyclic shifter to perform cyclic shift of fourth shift amount to data source signal to generate second data signal, first transmit antenna to transmit first pilot signal and first data signal, and second transmit antenna to transmit second pilot signal and second data signal.
摘要翻译：发射机包括通过调制导频序列产生导频源信号的第一发生器，第二发生器通过调制数据序列产生时间长于导频源信号的数据源信号，第一循环移位器执行第一移位量到导频的循环移位源信号以产生第一导频信号，第二循环移位器执行第二移位量到数据源信号的循环移位以产生第一数据信号，第三循环移位器执行第三移位量到导频源信号的循环移位以产生第二导频信号，第四循环移位器，执行第四移位量到数据源信号的循环移位，生成第二数据信号，第一发送天线发送第一导频信号和第一数据信号;第二发送天线，发送第二导频信号和第二数据信号。

8. 发明申请

US20060056380A1 Radio communication device and radio communication method 审中-公开
标题翻译：无线电通信设备和无线电通信方法
公开(公告)号：US20060056380A1
公开(公告)日：2006-03-16
申请号：US11086390
申请日：2005-03-23
申请人： Jun Mitsugi , Koji Akita , Ren Sakata , Tomoya Tandai , Naohisa Shibuya
发明人： Jun Mitsugi , Koji Akita , Ren Sakata , Tomoya Tandai , Naohisa Shibuya
IPC分类号： H04J3/24
CPC分类号： H04L1/0003 , H04L1/0006 , H04L1/0015 , H04L1/0017 , H04L1/1867 , H04L25/0228 , H04L27/2601 , H04L27/2647
摘要： There are provided a radio communication device and method including: modulating packets with a modulation scheme assigned in advance; transmitting modulated packets; receiving packets; estimating a channel state by utilizing received packets; selecting a first modulation scheme having a larger number of bits to be allocated per one symbol than the number of bits to be allocated in the modulation scheme assigned in advance, in case where the channel state satisfies a first modulation scheme change threshold, selecting a second modulation scheme having a smaller number of bits to be allocated per one symbol than the number of bits to be allocated in the modulation scheme assigned in advance, in case where the channel state satisfies a second modulation scheme change threshold; and modulating packets that satisfy an predetermined application condition, with the first or the second modulation scheme.
摘要翻译：提供了一种无线电通信装置和方法，包括：以预先分配的调制方案调制分组; 发送调制分组; 接收包; 通过利用接收到的分组来估计信道状态; 在信道状态满足第一调制方式改变阈值的情况下，选择每个符号要分配的比特数大于要分配的调制方式中要分配的比特数的第一调制方案，选择第二调制方式调制方式，在信道状态满足第二调制方式变更阈值的情况下，每1个符号分配的比特数少于预先分配的调制方式中要分配的比特数; 以及利用第一或第二调制方案来调制满足预定应用条件的分组。

9. 发明申请

US20090147875A1 RADIO TRANSMITTER AND RADIO RECEIVER 审中-公开
标题翻译：无线电发射机和无线接收机
公开(公告)号：US20090147875A1
公开(公告)日：2009-06-11
申请号：US12368682
申请日：2009-02-10
申请人： Koji Akita , Kaoru Inoue , Ren Sakata
发明人： Koji Akita , Kaoru Inoue , Ren Sakata
IPC分类号： H04L27/28 , H04L27/00 , H04B3/46
CPC分类号： H04L27/2614 , H04L5/0007 , H04L5/0053 , H04L5/0058
摘要： A radio transmitter includes a unit which generates a first instruction to instruct the transmission of a first transmission signal, a unit which generates the first transmission signal based on the first instruction, a unit which generates a second instruction to instruct the transmission of a second transmission signal to be selectively multiplied by an orthogonal code, a unit which generates the second transmission signal based on the second instruction, unit which transmits the first and the second transmission signals, a unit which predicts a collision of the first and second transmission signals, and a unit which stops the first transmission signal while the collision is predicted in a case where the second transmission signal is multiplied by the orthogonal code and which stops the second transmission signal while the collision is predicted in a case where the second transmission signal is not multiplied by the orthogonal code.
摘要翻译：一种无线电发射机包括一个单元，该单元产生一个指令发送第一个发射信号的第一个指令，一个基于第一个指令产生第一个发射信号的单元，该单元产生指令第二个传输的第二个指令信号被选择性地乘以正交码，基于第二指令产生第二发送信号的单元，发送第一和第二发送信号的单元，预测第一和第二发送信号的冲突的单元，以及在第二发送信号被乘以正交码的情况下预测碰撞时停止第一发送信号的单元，并且在第二发送信号未被乘以的情况下预测碰撞时停止第二发送信号的单元通过正交码。

10. 发明授权

US08374278B2 Transmission method, transmitter, and receiver for multi antenna wireless communication system 有权
公开(公告)号：US08374278B2
公开(公告)日：2013-02-12
申请号：US13336289
申请日：2011-12-23
申请人： Ren Sakata , Koji Akita
发明人： Ren Sakata , Koji Akita
IPC分类号： H04B7/02
CPC分类号： H04B7/06 , H04B7/0413 , H04B7/0613 , H04B7/0671 , H04B7/0684 , H04L27/2602 , H04L27/2626
摘要： A transmitter includes first generator to generate pilot source signal by modulating pilot sequence, second generator to generate data source signal with time length longer than that of pilot source signal by modulating data sequence, first cyclic shifter to perform cyclic shift of first shift amount to pilot source signal to generate first pilot signal, second cyclic shifter to performs cyclic shift of second shift amount to data source signal to generate first data signal, third cyclic shifter to perform cyclic shift of third shift amount to pilot source signal to generate second pilot signal, fourth cyclic shifter to perform cyclic shift of fourth shift amount to data source signal to generate second data signal, first transmit antenna to transmit first pilot signal and first data signal, and second transmit antenna to transmit second pilot signal and second data signal.

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