-
公开(公告)号：US20050265472A1
公开(公告)日：2005-12-01
申请号：US11135298
申请日：2005-05-24
申请人： Daisuke Takeda , Yoshimasa Egashira , Tsuguhide Aoki , Yasuhiko Tanabe , Kohsuke Harada , Hironori Uchikawa
发明人： Daisuke Takeda , Yoshimasa Egashira , Tsuguhide Aoki , Yasuhiko Tanabe , Kohsuke Harada , Hironori Uchikawa
CPC分类号： H04B7/04 , H04L5/0023 , H04L5/0048 , H04L25/0204 , H04L25/0226
摘要： Before data is transmitted from a plurality of antennas, a plurality of known symbol sequences are transmitted from these antennas. Each known symbol sequence contains a plurality of known symbols having different subcarrier arrangements. Known symbols transmitted from different antennas have different subcarrier arrangements.
摘要翻译： 在从多个天线发送数据之前，从这些天线发送多个已知符号序列。 每个已知符号序列包含具有不同副载波布置的多个已知符号。 从不同天线发送的已知符号具有不同的子载波布置。
-
公开(公告)号：US07532681B2
公开(公告)日：2009-05-12
申请号：US11135298
申请日：2005-05-24
申请人： Daisuke Takeda , Yoshimasa Egashira , Tsuguhide Aoki , Yasuhiko Tanabe , Kohsuke Harada , Hironori Uchikawa
发明人： Daisuke Takeda , Yoshimasa Egashira , Tsuguhide Aoki , Yasuhiko Tanabe , Kohsuke Harada , Hironori Uchikawa
IPC分类号： H04L27/04
CPC分类号： H04B7/04 , H04L5/0023 , H04L5/0048 , H04L25/0204 , H04L25/0226
摘要： Before data is transmitted from a plurality of antennas, a plurality of known symbol sequences are transmitted from these antennas. Each known symbol sequence contains a plurality of known symbols having different subcarrier arrangements. Known symbols transmitted from different antennas have different subcarrier arrangements.
摘要翻译： 在从多个天线发送数据之前，从这些天线发送多个已知符号序列。 每个已知符号序列包含具有不同副载波布置的多个已知符号。 从不同天线发送的已知符号具有不同的子载波布置。
-
公开(公告)号：US07773706B2
公开(公告)日：2010-08-10
申请号：US12323246
申请日：2008-11-25
CPC分类号： H04L27/2613 , H04B7/0678
摘要： A wireless communication apparatus includes a plurality of antennas, transmits a plurality of known symbol sequences each including a plurality of known symbols by using the antennas, each of the known symbols having subcarrier arrangement on which plural known information of the each of the known symbols are carried on, and inversion/non-inversion of a phase of known information on one of two adjacent subcarriers of the subcarrier arrangement being controlled in accordance with the number of the known symbols and time position of the each of the known symbols, and transmits data symbols by using the antennas after the known symbol sequences are transmitted.
摘要翻译： 无线通信装置包括多个天线，通过使用天线发送多个已知符号序列，每个已知符号序列包括多个已知符号，每个已知符号具有子载波排列，每个已知符号的多个已知信息 并且根据已知符号的数量和每个已知符号的时间位置来控制子载波装置的两个相邻子载波之一上的已知信息的相位的反相/非反相，并且发送数据 在发送已知符号序列之后使用天线的符号。
-
公开(公告)号：US20090080567A1
公开(公告)日：2009-03-26
申请号：US12323246
申请日：2008-11-25
IPC分类号： H04B7/10
CPC分类号： H04L27/2613 , H04B7/0678
摘要： A wireless communication apparatus includes a plurality of antennas, transmits a plurality of known symbol sequences each including a plurality of known symbols by using the antennas, each of the known symbols having subcarrier arrangement on which plural known information of the each of the known symbols are carried on, and inversion/non-inversion of a phase of known information on one of two adjacent subcarriers of the subcarrier arrangement being controlled in accordance with the number of the known symbols and time position of the each of the known symbols, and transmits data symbols by using the antennas after the known symbol sequences are transmitted.
摘要翻译： 无线通信装置包括多个天线，通过使用天线发送多个已知符号序列，每个已知符号序列包括多个已知符号，每个已知符号具有子载波排列，每个已知符号的多个已知信息 并且根据已知符号的数量和每个已知符号的时间位置来控制副载波装置的两个相邻子载波之一上的已知信息的相位的反相/非反相，并且发送数据 在发送已知符号序列之后使用天线的符号。
-
公开(公告)号：US20050276349A1
公开(公告)日：2005-12-15
申请号：US11147321
申请日：2005-06-08
CPC分类号： H04L27/2613 , H04B7/0678
摘要： A wireless communication apparatus includes a plurality of antennas, transmits a plurality of known symbol sequences each including a plurality of known symbols by using the antennas, each of the known symbols having subcarrier arrangement on which plural known information of the each of the known symbols are carried on, and inversion/non-inversion of a phase of known information on one of two adjacent subcarriers of the subcarrier arrangement being controlled in accordance with the number of the known symbols and time position of the each of the known symbols, and transmits data symbols by using the antennas after the known symbol sequences are transmitted.
摘要翻译： 无线通信装置包括多个天线，通过使用天线发送多个已知符号序列，每个已知符号序列包括多个已知符号，每个已知符号具有子载波排列，每个已知符号的多个已知信息 并且根据已知符号的数量和每个已知符号的时间位置来控制副载波装置的两个相邻子载波之一上的已知信息的相位的反相/非反相，并且发送数据 在发送已知符号序列之后使用天线的符号。
-
公开(公告)号：US07483503B2
公开(公告)日：2009-01-27
申请号：US11147321
申请日：2005-06-08
CPC分类号： H04L27/2613 , H04B7/0678
摘要： A wireless communication apparatus includes a plurality of antennas, transmits a plurality of known symbol sequences each including a plurality of known symbols by using the antennas, each of the known symbols having subcarrier arrangement on which plural known information of the each of the known symbols are carried on, and inversion/non-inversion of a phase of known information on one of two adjacent subcarriers of the subcarrier arrangement being controlled in accordance with the number of the known symbols and time position of the each of the known symbols, and transmits data symbols by using the antennas after the known symbol sequences are transmitted.
摘要翻译： 无线通信装置包括多个天线，通过使用天线发送多个已知符号序列，每个已知符号序列包括多个已知符号，每个已知符号具有子载波排列，每个已知符号的多个已知信息 并且根据已知符号的数量和每个已知符号的时间位置来控制副载波装置的两个相邻子载波之一上的已知信息的相位的反相/非反相，并且发送数据 在发送已知符号序列之后使用天线的符号。
-
公开(公告)号：US20060140303A1
公开(公告)日：2006-06-29
申请号：US11200297
申请日：2005-08-10
CPC分类号： H04B7/0452 , H04B7/0613 , H04B7/0619 , H04B7/0851 , H04L25/0204 , H04L25/0226 , H04L27/2602
摘要： In transmitting a wireless packet signal for channel response estimation, after AGC preambles and channel estimation preambles are transmitted by using a plurality of antennas, at least one data stream is transmitted, as subcarriers distributed to the plurality of antennas, by using the plurality of antennas.
摘要翻译： 在发送用于信道响应估计的无线分组信号时，在通过使用多个天线发送AGC前导码和信道估计前导码之后，通过使用多个天线作为分配给多个天线的子载波来发送至少一个数据流 。
-
公开(公告)号：US07835476B2
公开(公告)日：2010-11-16
申请号：US11689121
申请日：2007-03-21
IPC分类号： H04L27/06
CPC分类号： H04L27/2613 , H04B7/0413 , H04L25/0226
摘要： A receiver of an OFDM signal includes a reception unit to receive an OFDM signal formed by a plurality of OFDM symbols respectively including data subcarriers to which data signals are allocated and pilot subcarriers to which cyclically shifted pilot signals are allocated in frequency domain, an estimator to estimate phase errors of the pilot signals to generate first estimated values related to an offset of the OFDM symbol corresponding to each two or more OFDM symbols in the OFDM signal, a weighting adder to perform weighting additions on the first estimated values to obtain one second estimated value related to the offset, a compensator to compensate the offset by using the second estimated value to obtain a compensated OFDM signal, and a decoder to decode the compensated OFDM signal to reproduce the data signals.
摘要翻译： OFDM信号的接收机包括：接收单元，用于接收由多个OFDM符号形成的OFDM信号，所述OFDM信号分别包括分配数据信号的数据子载波和在频域中被分配了循环移位的导频信号的导频子载波，估计器 估计所述导频信号的相位误差，以产生与所述OFDM信号中对应于每个两个或更多个OFDM符号的OFDM符号的偏移相关的第一估计值;加权加法器，用于对所述第一估计值执行加权增加以获得一秒估计值 与补偿相关的值，通过使用第二估计值来补偿偏移以获得补偿的OFDM信号的补偿器，以及解码器，对经补偿的OFDM信号进行解码以再现数据信号。
-
公开(公告)号：US20080279259A1
公开(公告)日：2008-11-13
申请号：US12136528
申请日：2008-06-10
申请人： Takahiro Kobayashi , Noritaka Deguchi , Yoshimasa Egashira , Yasuhiko Tanabe , Tsuguhide Aoki , Manabu Mukai , Tomoya Horiguchi
发明人： Takahiro Kobayashi , Noritaka Deguchi , Yoshimasa Egashira , Yasuhiko Tanabe , Tsuguhide Aoki , Manabu Mukai , Tomoya Horiguchi
IPC分类号： H04B1/713
CPC分类号： H04L5/1484 , H04B1/7143 , H04B2001/7154 , H04L5/023 , H04L27/2608
摘要： Radio communication apparatus for receiving OFDM signal from base station and transmitting FH signal to base station, using sub-channels, base station comparing hopping pattern information items indicating hopping patterns from radio communication apparatuses including radio communication apparatus, and generating collision information when hopping patterns include colliding hopping patterns, includes estimation unit configured to estimate channel response values of sub-channels based on OFDM signal, selector which selects, from sub-channels, several sub-channels which have higher channel response values than a value, each of channel response values being expressed by power level, signal-to-noise power ratio, or signal-to-interference ratio, determination unit configured to determine hopping pattern from selected sub-channels, transmitter which transmits, to base station, hopping pattern information item indicating determined hopping pattern, receiver which receives collision information from base station, and correction unit configured to correct hopping pattern based on collision information.
摘要翻译： 用于从基站接收OFDM信号并使用子信道发送FH信号的无线电通信装置，基站比较表示包括无线电通信装置的无线电通信装置的跳频模式的跳频模式信息项，并且当跳频模式包括时产生冲突信息 包括估计单元，其被配置为基于OFDM信号来估计子信道的信道响应值;选择器，其从子信道选择具有比值更高的信道响应值的几个子信道，每个信道响应值 由功率电平，信噪比功率比或信号干扰比表示;确定单元，被配置为从所选择的子信道中确定跳频模式;发送器，向基站发送指示确定跳频的跳频模式信息项 模式，接收器接收碰撞信息 以及基于冲突信息来校正跳频图案的校正单元。
-
公开(公告)号：US20080063120A1
公开(公告)日：2008-03-13
申请号：US11689121
申请日：2007-03-21
IPC分类号： H04L27/06
CPC分类号： H04L27/2613 , H04B7/0413 , H04L25/0226
摘要： A receiver of an OFDM signal includes a reception unit to receive an OFDM signal formed by a plurality of OFDM symbols respectively including data subcarriers to which data signals are allocated and pilot subcarriers to which cyclically shifted pilot signals are allocated in frequency domain, an estimator to estimate phase errors of the pilot signals to generate first estimated values related to an offset of the OFDM symbol corresponding to each two or more OFDM symbols in the OFDM signal, a weighting adder to perform weighting additions on the first estimated values to obtain one second estimated value related to the offset, a compensator to compensate the offset by using the second estimated value to obtain a compensated OFDM signal, and a decoder to decode the compensated OFDM signal to reproduce the data signals.
摘要翻译： OFDM信号的接收机包括：接收单元，用于接收由多个OFDM符号形成的OFDM信号，所述OFDM信号分别包括分配数据信号的数据子载波和在频域中被分配了循环移位的导频信号的导频子载波，估计器 估计所述导频信号的相位误差，以产生与所述OFDM信号中对应于每个两个或更多个OFDM符号的OFDM符号的偏移相关的第一估计值;加权加法器，用于对所述第一估计值执行加权增加以获得一秒估计值 与补偿相关的值，通过使用第二估计值来补偿偏移以获得补偿的OFDM信号的补偿器，以及解码器，对经补偿的OFDM信号进行解码以再现数据信号。
-
-
-
-
-
-
-
-
-
搜索结果
29 条记录 (耗时 0.028 秒)