公开(公告)号：US07688913B2

公开(公告)日：2010-03-30

申请号：US12173632

申请日：2008-07-15

申请人： Atsushi Matsumoto ,  Mitsuru Uesugi ,  Kenichi Miyoshi ,  Toshiyuki Uehara

发明人： Atsushi Matsumoto ,  Mitsuru Uesugi ,  Kenichi Miyoshi ,  Toshiyuki Uehara

IPC分类号： H04L27/00

CPC分类号： H04L1/1845 ,  H04B1/707 ,  H04L1/0003 ,  H04L1/004 ,  H04L1/0056 ,  H04L1/1893 ,  H04L27/3488 ,  H04L2001/0098

摘要： P/S conversion section 302 performs parallel/serial conversion of data sequences #1 through #4 input in parallel, in accordance with control by assignment control section 303, so that data to a higher-priority communication terminal is assigned to an upper bit in one symbol; M-ary modulation section 304 performs M-ary modulation on the data that has been subject to parallel/serial conversion; S/P conversion section 305 converts a symbol that has been subject to M-ary modulation to parallel form; multipliers 306-1 through 306-4 execute spreading processing on the symbols output in parallel; multiplexing section 309 multiplexes the symbol that has been subject to spreading processing with an assignment notification signal that has been subject to spreading processing; and radio transmitting section 310 transmits the multiplex signal.

摘要翻译： P / S转换部分302根据分配控制部分303的控制对并行输入的数据序列＃1至＃4进行并行/串行转换，使得到较高优先级的通信终端的数据被分配给 一个符号 M元调制部304对已经进行并行/串行转换的数据执行M进制调制; S / P转换部分305将已经被M进制调制的符号转换成并行形式; 乘法器306-1至306-4对并行输出的符号执行扩展处理; 多路复用部分309将已经进行扩展处理的符号与已经进行扩展处理的分配通知信号进行复用; 无线发送部310发送多路复用信号。

公开(公告)号：US07403471B2

公开(公告)日：2008-07-22

申请号：US10773396

申请日：2004-02-09

申请人： Hiroaki Sudo ,  Mitsuru Uesugi

发明人： Hiroaki Sudo ,  Mitsuru Uesugi

IPC分类号： H04J11/00

CPC分类号： H04L27/2605

摘要： A method and apparatus for setting a guard interval in an OFDM communication. The method includes attaching a part of a first valid symbol to the first valid symbol as a guard interval and attaching a part of a second valid symbol requiring higher channel quality than the first valid symbol, to the second valid symbol as a guard interval, and providing the guard interval of the second valid symbol at a length greater than the guard interval of the first valid symbol.

摘要翻译： 一种在OFDM通信中设置保护间隔的方法和装置。 该方法包括将第一有效符号的一部分附加到第一有效符号作为保护间隔，并将需要比第一有效符号更高的信道质量的第二有效符号的一部分附加到作为保护间隔的第二有效符号，以及 以大于第一有效符号的保护间隔的长度提供第二有效符号的保护间隔。

公开(公告)号：US07400689B2

公开(公告)日：2008-07-15

申请号：US11232005

申请日：2005-09-22

申请人： Atsushi Matsumoto ,  Mitsuru Uesugi ,  Kenichi Miyoshi ,  Toshiyuki Uehara

发明人： Atsushi Matsumoto ,  Mitsuru Uesugi ,  Kenichi Miyoshi ,  Toshiyuki Uehara

IPC分类号： H04L27/00

CPC分类号： H04L1/1845 ,  H04B1/707 ,  H04L1/0003 ,  H04L1/004 ,  H04L1/0056 ,  H04L1/1893 ,  H04L27/3488 ,  H04L2001/0098

摘要： P/S conversion section 302 performs parallel/serial conversion of data sequences #1 through #4 input in parallel, in accordance with control by assignment control section 303, so that data to a higher-priority communication terminal is assigned to an upper bit in one symbol; M-ary modulation section 304 performs M-ary modulation on the data that has been subject to parallel/serial conversion; S/P conversion section 305 converts a symbol that has been subject to M-ary modulation to parallel form; multipliers 306-1 through 306-4 execute spreading processing on the symbols output in parallel; multiplexing section 309 multiplexes the symbol that has been subject to spreading processing with an assignment notification signal that has been subject to spreading processing; and radio transmitting section 310 transmits the multiplexed signal.

摘要翻译： P / S转换部分302根据分配控制部分303的控制对并行输入的数据序列＃1至＃4进行并行/串行转换，使得到较高优先级的通信终端的数据被分配给 一个符号 M元调制部304对已经进行并行/串行转换的数据执行M进制调制; S / P转换部分305将已经被M进制调制的符号转换成并行形式; 乘法器306-1至306-4对并行输出的符号执行扩展处理; 多路复用部分309将已经进行扩展处理的符号与已经进行扩展处理的分配通知信号进行复用; 无线发送部310发送多路复用信号。

公开(公告)号：US07369621B2

公开(公告)日：2008-05-06

申请号：US10516182

申请日：2003-07-03

申请人： Isamu Yoshii ,  Mitsuru Uesugi ,  Toshiyuki Uehara ,  Akihiko Nishio

发明人： Isamu Yoshii ,  Mitsuru Uesugi ,  Toshiyuki Uehara ,  Akihiko Nishio

IPC分类号： H04L23/02

CPC分类号： H04W52/32 ,  H04L1/0061 ,  H04L1/0083 ,  H04L27/34 ,  H04L27/3488 ,  H04L2001/0098 ,  H04W4/06 ,  H04W52/267 ,  H04W52/322 ,  H04W52/327

摘要： In order to perform appropriate reception quality control on each mobile station in a multimedia broadcast/multicast service, a layered coding section 101 encodes input data by dividing the input data into two layers and obtains a first layer code string and a second layer code string. The first layer code string is input to a CRC code addition section 102 and a CRC code for an error inspection is added thereto at every predetermined block. On the other hand, the second layer code string is input to a CRC code addition section 103 and a CRC code for an error inspection is added thereto at every predetermined block. The first layer code string and the second layer code string with the CRC codes added are input to a layered modulation section 104 and the layered modulation section 104 modulates a plurality of code strings coded by being divided into a plurality of layers in such away that error rates differ hierarchically among the plurality of code strings and a radio section 105 sends the modulated symbol.

摘要翻译： 为了对多媒体广播/多播服务中的每个移动台执行适当的接收质量控制，分层编码部分101通过将输入数据分成两层来编码输入数据，并获得第一层代码串和第二层代码串。 第一层代码串被输入到CRC码添加部分102，并且在每个预定的块处添加用于错误检查的CRC码。 另一方面，第二层代码串被输入到CRC码附加部分103，并且在每个预定的块处添加用于错误检查的CRC码。 第一层代码串和添加有CRC码的第二层代码串被输入到分层调制部分104，并且分层调制部分104调制通过被分成多个层而编码的多个代码串，这样的错误 速率在多个代码串之间分级地不同，并且无线电部分105发送调制符号。

公开(公告)号：US20070038912A1

公开(公告)日：2007-02-15

申请号：US10557200

申请日：2004-05-18

申请人： Kazunari Hashimoto ,  Mitsuru Uesugi

发明人： Kazunari Hashimoto ,  Mitsuru Uesugi

IPC分类号： H03M13/00

CPC分类号： H04L1/0057 ,  H04L1/0071 ,  H04L1/08

摘要： An error correction coding apparatus which improves the throughput of the whole system, while minimizing the increase of the circuit size and the amount of processing operation of the whole apparatus. In this apparatus, a data divider 132 divides transmission data into a plurality of blocks to generate n divided blocks. The n error correction coders out of N error correction coders 134 carry out an error correction coding on each of the n divided blocks in units of block, and outputs the divided blocks. A data concatenator 136 concatenates the n code blocks that have been error-correction-coded in units of block. A division/concatenation controller 138 controls at least one of data divider 132 and data concatenator 136 so that the division of the transmission data and the concatenation of the code blocks are carried out in units of bit.

摘要翻译： 一种改善整个系统的吞吐量同时最小化电路尺寸的增加和整个装置的处理操作量的纠错编码装置。 在该装置中，数据分割部132将发送数据分割为多个块，生成n个分割块。 N个纠错编码器134中的n个纠错编码器以块为单位对n个分割块中的每一个进行纠错编码，并输出分割块。 数据级联器136将以块为单位经错误校正编码的n个码块连接起来。 分割/级联控制器138控制数据分割器132和数据级联器136中的至少一个，使得传输数据的分割和代码块的级联以比特为单位进行。

公开(公告)号：US07133698B2

公开(公告)日：2006-11-07

申请号：US10069396

申请日：2001-06-26

申请人： Kenichi Miyoshi ,  Mitsuru Uesugi

发明人： Kenichi Miyoshi ,  Mitsuru Uesugi

IPC分类号： H04M1/00

CPC分类号： H04W88/08 ,  H04B7/0615 ,  H04B7/0617 ,  H04B7/0619 ,  H04B7/0689 ,  H04B7/0857 ,  H04B7/086 ,  H04B7/0871 ,  H04B17/309 ,  H04W16/24

摘要： The fading correlation monitor 103 detects an angle spread of the communication terminal apparatus 200-1 and decides whether the angle spread has a larger or smaller relationship with a preset threshold value. When the estimated angle spread is smaller than the threshold value, the interference wave is suppressed by carrying out directive reception which is carried out by an AAA receiver 106 as well as performing directive transmission which is carried out in a transmitting circuit 122.While, when the estimated angle spread is larger than the predetermined value, the distortion of the signals due to the fading is compensated by carrying out diversity receiving which is carried out in a diversity receiver 107 as well as performing diversity transmission which is carried out in a diversity transmitter 123.On account of this, even when the fading correlation is small, it is possible to carry out a radio communication with a satisfactory communication quality.

摘要翻译： 衰落相关监视器103检测通信终端装置200-1的角度扩展，并且确定角度扩展是否与预设阈值具有更大或更小的关系。 当估计角度扩展小于阈值时，通过执行由AAA接收机106执行的指导接收以及执行在发送电路122中执行的指示传输来抑制干扰波。然而，当 估计的角度扩展大于预定值，则通过执行在分集接收机107中执行的分集接收以及执行在分集发射机中进行的分集发送来补偿由于衰落引起的信号的失真 因此，即使在衰落相关小的情况下，也可以进行具有令人满意的通信质量的无线通信。

公开(公告)号：US06999497B2

公开(公告)日：2006-02-14

申请号：US09959607

申请日：2001-03-12

申请人： Mitsuru Uesugi

发明人： Mitsuru Uesugi

IPC分类号： H04B1/69 ,  H04B1/38 ,  H04L27/00

CPC分类号： H04L1/1845 ,  H04B1/707 ,  H04L1/1809

摘要： A spreader 112 of a base station apparatus 100 spreads transmission data at a low spreading factor at which a given signal quality can be little obtained after despreading at a mobile station apparatus 101, when an error detector 137 of the mobile station apparatus 101 detects an error in despread data of received data, a data retransmission request is performed to the base station apparatus 100 and despread data is held by a despreader/combiner 136. After that, the mobile station apparatus 101 repeats processing for combining the held data with the retransmitted data subjected to despreading until the time when an error-undetected state comes. This makes it possible to increase transmission efficiency, suppress transmission power extremely, and improve diversity performance to transmit data from a plurality of antennas.

摘要翻译： 基站装置100的扩展器112在移动站装置101的解扩后以低扩频率扩展发送数据时，在解扩后能够获取给定的信号质量，当移动站装置101的错误检测器137检测到错误时 在接收数据的解扩数据中，向基站装置100执行数据重发请求，并且解扩数据由解扩器/组合器136保持。 之后，移动站装置101重复将保持的数据与经过解扩的重发数据进行组合的处理，直到出现未检测到错误的状态为止。 这使得可以提高传输效率，极大地抑制发送功率，并且提高从多个天线发送数据的分集性能。

公开(公告)号：US06993308B2

公开(公告)日：2006-01-31

申请号：US10088053

申请日：2001-07-25

申请人： Kenichi Miyoshi ,  Mitsuru Uesugi

发明人： Kenichi Miyoshi ,  Mitsuru Uesugi

IPC分类号： H04B7/00

CPC分类号： H04L25/0236

摘要： A likelihood calculating section 205 calculates a likelihood of a data portion signal and outputs a weighting coefficient according to the likelihood to a multiplier 206. The multiplier 206 multiplies a data channel estimation value output from a data channel estimating section 204 by the weighting coefficient output from the likelihood calculating section 205, whereby weighting the data channel estimation value according to likelihood of the data portion signal. A combining section 207 combines a PL channel estimation value with the data channel estimation value weighted according to the likelihood of data portion signal to obtain a final channel estimation value.

摘要翻译： 似然度计算部分205计算数据部分信号的似然性，并将乘以206的可能性的加权系数输出。 乘法器206将从数据信道估计部分204输出的数据信道估计值乘以由似然度计算部分205输出的加权系数，从而根据数据部分信号的似然性来加权数据信道估计值。 组合部分207将PL信道估计值与根据数据部分信号的似然度加权的数据信道估计值组合以获得最终信道估计值。

公开(公告)号：US06871046B2

公开(公告)日：2005-03-22

申请号：US10168961

申请日：2001-10-26

申请人： Keiichi Kitagawa ,  Mitsuru Uesugi

发明人： Keiichi Kitagawa ,  Mitsuru Uesugi

IPC分类号： H04J1/00 ,  H04B1/04 ,  H04B7/26 ,  H04J11/00 ,  H04L27/26 ,  H04Q7/36 ,  H04B7/14

CPC分类号： H04L5/006 ,  H04L5/0007 ,  H04L5/0046 ,  H04L27/2637 ,  H04L27/2653

摘要： Channel fluctuation estimating section 101 estimates fluctuation amount of the channel between transmitting apparatus 100 and receiving apparatus 200, and carrier number determining section 102 determines the number of subcarriers used in transmission of signal based on channel fluctuation amount. That is to say, in the case of a remarkably rapid channel fluctuation caused by fast fading, etc., carrier number determining section 102 deduces relatively the channel fluctuation between symbols or within a burst, by decreasing the subcarriers number and increasing symbol rate per one subcarrier.

摘要翻译： 信道变动估计部101估计发送装置100与接收装置200之间的信道的变动量，载波号决定部102根据信道变动量来确定信号发送中使用的子载波的数量。 也就是说，在快速衰落引起的信道波动明显快的情况下，载波号确定部分102通过减少子载波数量并增加每个符号速率来相对推导出符号之间或脉冲串内的信道波动 副载波

公开(公告)号：US06804491B1

公开(公告)日：2004-10-12

申请号：US09701337

申请日：2000-11-28

申请人： Mitsuru Uesugi

发明人： Mitsuru Uesugi

IPC分类号： H04B715

CPC分类号： H04B7/1555 ,  H01Q1/242 ,  H01Q3/26 ,  H01Q25/00 ,  H04B7/15542 ,  H04W16/26

摘要： When a base station 205 employs frequencies f1, f2 and f3, repeaters 201 to 204 provided with filters passing only f1 are placed. According to this configuration, repeater apparatus causes only f1 to be passed to reach in the distance so as to enlarge cells 207 to 210 according to only specific channel (frequency f1).

摘要翻译： 当基站205使用频率f1，f2和f3时，设置仅通过f1的滤波器的中继器201至204被放置。 根据该结构，中继器装置仅使f1通过距离达到，以便仅根据特定信道（频率f1）来扩大小区207至210。