公开(公告)号：US20060068820A1

公开(公告)日：2006-03-30

申请号：US11062952

申请日：2005-02-23

申请人： Shigeru Sugaya ,  Mitsuhiro Suzuki ,  Kazuyuki Sakoda ,  Kenzo Nishikawa ,  Chihiro Fujita ,  Yuichi Morioka

发明人： Shigeru Sugaya ,  Mitsuhiro Suzuki ,  Kazuyuki Sakoda ,  Kenzo Nishikawa ,  Chihiro Fujita ,  Yuichi Morioka

IPC分类号： H04Q7/20 ,  H04B7/00

CPC分类号： H04W28/20 ,  H04W84/18

摘要： A wireless communication system in which each of communication stations performs networking operation in an autonomous, distributed manner, wherein each of the communication stations gathers information indicative of a band use situation in peripheral stations, grasps bands usable and unusable by the own station from the gathered information to set a band to be actually used by the own station, and mutually recognize bands to be used and unusable by the own station by informing to the peripheral stations.

摘要翻译： 一种无线通信系统，其中每个通信站以自主的，分布的方式执行联网操作，其中每个通信站收集指示外围站的频带使用情况的信息，掌握本站可用和不可用的频带从收集的 用于设置本站实际使用的频带的信息，并且通过向周边站通知来相互识别本站要使用和不可用的频带。

公开(公告)号：US06977884B2

公开(公告)日：2005-12-20

申请号：US11085490

申请日：2005-03-21

申请人： Kazuyuki Sakoda ,  Mitsuhiro Suzuki

发明人： Kazuyuki Sakoda ,  Mitsuhiro Suzuki

IPC分类号： H04J11/00 ,  H04B3/10 ,  H04L27/26

CPC分类号： H04L27/2601

摘要： A transmitting apparatus, receiving apparatus, communication system, and a signal processing method for each apply a suitable modulation method and transmission path estimation method in accordance with the characteristics of the transmission information and capable of improving the transmission efficiency. At the transmission side, the method of estimation of the transmission path and the modulation method are selected in accordance with an attribute of the data to be transmitted, for example, the size of a packet to be transmitted, the transmission data is mapped by the selected modulation method, the signal is processed in accordance with the transmission path estimation method, and a transmission signal is created by increase fast Fourier transform processing and transmitted. At the reception side, the received signal is fast Fourier transformed, the transmission path is estimated by the transmission path estimation method selected at the transmission side, the received signal is corrected in accordance with the result, and the received data is reproduced in accordance with the modulation method. Therefore, it is possible to always adopt the optimum transmission method in accordance with the attribute of the transmission data etc. and possible to realize an improvement of a transmission efficiency and an enhancement of the quality of communication.

公开(公告)号：US20050163239A1

公开(公告)日：2005-07-28

申请号：US11085344

申请日：2005-03-21

申请人： Kazuyuki Sakoda ,  Mitsuhiro Suzuki

发明人： Kazuyuki Sakoda ,  Mitsuhiro Suzuki

IPC分类号： H04J11/00 ,  H04B3/10 ,  H04L27/26 ,  H04L27/28

CPC分类号： H04L27/2601

摘要： A transmitting apparatus, receiving apparatus, communication system, and a signal processing method for each apply a suitable modulation method and transmission path estimation method in accordance with the characteristics of the transmission information and capable of improving the transmission efficiency. At the transmission side, the method of estimation of the transmission path and the modulation method are selected in accordance with an attribute of the data to be transmitted, for example, the size of a packet to be transmitted, the transmission data is mapped by the selected modulation method, the signal is processed in accordance with the transmission path estimation method, and a transmission signal is created by increase fast Fourier transform processing and transmitted. At the reception side, the received signal is fast Fourier transformed, the transmission path is estimated by the transmission path estimation method selected at the transmission side, the received signal is corrected in accordance with the result, and the received data is reproduced in accordance with the modulation method. Therefore, it is possible to always adopt the optimum transmission method in accordance with the attribute of the transmission data etc. and possible to realize an improvement of a transmission efficiency and an enhancement of the quality of communication.

公开(公告)号：US06201970B1

公开(公告)日：2001-03-13

申请号：US08998061

申请日：1997-12-24

申请人： Mitsuhiro Suzuki ,  Kazuyuki Sakoda

发明人： Mitsuhiro Suzuki ,  Kazuyuki Sakoda

IPC分类号： H04Q720

CPC分类号： H04L1/0071 ,  H03M13/2767 ,  H04L1/0041 ,  H04W72/04

摘要： A transmission method according to the present invention is one of simultaneously using first and second communication resources by variable allocation and includes a step of, if the first or second communication resource is solely used, interleaving data by using the first or second communication resource as a unit to transmit it, and a step of, if the first and second communication resources are simultaneously used, interleaving data by using the whole of the first and second communication resource as a unit to transmit it.

摘要翻译： 根据本发明的传输方法是通过可变分配同时使用第一和第二通信资源之一，并且包括以下步骤：如果仅使用第一或第二通信资源，则通过使用第一或第二通信资源将数据交织为 单元，以及如果同时使用第一和第二通信资源，则通过使用整个第一和第二通信资源作为发送单元来交织数据的步骤。

公开(公告)号：US06195534B1

公开(公告)日：2001-02-27

申请号：US09114896

申请日：1998-07-14

申请人： Kazuyuki Sakoda ,  Mitsuhiro Suzuki

发明人： Kazuyuki Sakoda ,  Mitsuhiro Suzuki

IPC分类号： H04B1100

CPC分类号： H04L5/0064 ,  H04B7/2643 ,  H04L5/0044 ,  H04L27/2602 ,  H04L27/2626 ,  H04L27/2647 ,  H04L2001/0098

摘要： A communication method, and a processing in accordance with the priority can be performed with a simple configuration even in the case of the communication of the multi-carrier method. The sub-carriers on which high priority data is superimposed and the sub-carriers on which low priority data is superimposed are positioned alternately to be transmitted. At the receiving side, the reception symbol stream in which symbols are lined on the frequency axis is obtained by performing a predetermined reception processing. The delayed symbol stream in which the reception symbol stream is delayed for a predetermined time is added to the reception symbol stream to extract the signal components relating to the high priority data, so that the high priority data is decoded. Thus, the high priority data can be decoded promptly with a simple configuration, and a processing in accordance with the priority can be performed with a simple configuration even if the high priority data and the low priority data are transmitted at the same time by the multi-carrier method.

摘要翻译： 即使在多载波方式的通信的情况下，也可以以简单的配置来执行通信方法和根据优先级的处理。在其上叠加高优先级数据和子载波的子载波 叠加的低优先级数据被交替地定位以被发送。 在接收侧，通过执行预定的接收处理来获得符号在频率轴上排列的接收符号流。 将接收符号流延迟预定时间的延迟符号流添加到接收符号流中以提取与高优先级数据相关的信号分量，从而对高优先级数据进行解码。 因此，可以用简单的配置迅速解码高优先级的数据，即使通过多重的数据同时发送高优先级数据和低优先级数据，也可以以简单的配置执行根据优先级的处理 载体法。

公开(公告)号：US5914932A

公开(公告)日：1999-06-22

申请号：US997878

申请日：1997-12-24

申请人： Mitsuhiro Suzuki ,  Kazuyuki Sakoda

发明人： Mitsuhiro Suzuki ,  Kazuyuki Sakoda

IPC分类号： H04J11/00 ,  H04B7/24 ,  H04L27/26

CPC分类号： H04L27/2656 ,  H04L27/2657 ,  H04L27/2679

摘要： A reception method of a multicarrier system according to the present invention is one in which a phase-modulated data is transmitted by using each of a plurality of subcarriers, and includes a random data generating step of generating a phase shift data randomly changed, a multiplying step for multiplying each of received subcarriers with an output obtained in the random data generating step, and a state detection signal generating step for monitoring a state of an output obtained in the multiplying step and for generating a predetermined state detection signal when a predetermined state is detected. A frame period of a received signal is detected based on an output obtained in the state detection signal generating step.

摘要翻译： 根据本发明的多载波系统的接收方法是通过使用多个子载波中的每一个来发送相位调制数据的接收方法，并且包括产生随机改变的相移数据的随机数据生成步骤，乘法 用于将每个接收的子载波与随机数据产生步骤中获得的输出相乘的步骤;以及状态检测信号生成步骤，用于监视在乘法步骤中获得的输出的状态，并且当预定状态为 检测到。 基于在状态检测信号生成步骤中获得的输出来检测接收信号的帧周期。

公开(公告)号：US5907583A

公开(公告)日：1999-05-25

申请号：US103835

申请日：1998-06-24

申请人： Kazuyuki Sakoda ,  Mitsuhiro Suzuki

发明人： Kazuyuki Sakoda ,  Mitsuhiro Suzuki

IPC分类号： H04L27/34 ,  H03M13/23 ,  H04L1/00 ,  H04L27/18 ,  H04L27/26 ,  H04L27/28

CPC分类号： H04L27/2647

摘要： A receiving apparatus that is capable of applying maximum likelihood sequence estimation precisely, with a simple configuration, wherein characteristics of the transmission line of each symbol group are estimated on the basis of the amplitude and the phases of the pilot symbols which have been extracted from the reception symbol group, and the information symbol group is restored from the reception symbol group on the basis of the result of the estimation, and the coded bit group which has been restored from the information symbol group is multiplied by the weighting factor and caused to reflect the reliability of the transmission line of each symbol group, and maximum likelihood sequence estimation is applied to the coded bit group which is reflecting the reliability, and thereby the information bit sequence is restored. As a result, by the use of simple configuration, influences given at the transmission line can be eliminated and so the information symbol group can be restored exactly. In addition, the reliability of the transmission line of each symbol group can be reflected on the coded bit group, and in this way, maximum likelihood sequence estimation can be applied more precisely.

摘要翻译： 一种接收装置，其能够以简单的配置精确地应用最大似然序列估计，其特征在于，基于从所述导频符号提取的导频符号的幅度和相位来估计每个符号组的传输线的特性 接收符号组，并且基于估计结果从接收符号组恢复信息符号组，并且从信息符号组中恢复的编码比特组被乘以加权因子并且反映 每个符号组的传输线的可靠性和最大似然序列估计被应​​用于反映可靠性的编码比特组，从而恢复信息比特序列。 结果，通过使用简单的配置，可以消除在传输线路上给出的影响，从而可以精确地恢复信息符号组。 此外，每个符号组的传输线的可靠性可以反映在编码比特组上，并且以这种方式，可以更精确地应用最大似然序列估计。

公开(公告)号：US07633945B1

公开(公告)日：2009-12-15

申请号：US09647964

申请日：2000-02-09

申请人： Kazuyuki Sakoda ,  Mitsuhiro Suzuki

发明人： Kazuyuki Sakoda ,  Mitsuhiro Suzuki

IPC分类号： H04L12/56

CPC分类号： H04W28/0289 ,  H04L12/14 ,  H04L12/1485 ,  H04L67/322 ,  H04L67/325 ,  H04L69/329

摘要： An information distribution system and method capable of averaging a traffic load over time and effectively utilizing communication facilities, wherein a terminal station 30 transmits to a contents server 10 a distribution request for desired information including information of time limit of distribution, and the contents server 10 receives the distribution request, estimates a time band where the traffic load is small in the communications system in the period until the time limit of distribution, pages the terminal station again at that period of time, and, if the terminal station is in a state able to receive the information content, transmits the requested information content to the terminal station 30 through a network node.

摘要翻译： 一种能够对一段时间内的业务负载进行平均并有效利用通信设施的信息分发系统和方法，其中，终端30向内容服务器10发送包含分发时间限制信息的期望信息的分发请求，内容服务器10 接收分发请求，估计通信系统中在通信系统中的通信负荷小的时间段直到分发时间限制，在该时间段再次寻呼终端站，并且如果终端处于状态 能够接收信息内容，通过网络节点向终端站30发送所请求的信息内容。

公开(公告)号：US20050163240A1

公开(公告)日：2005-07-28

申请号：US11085490

申请日：2005-03-21

申请人： Kazuyuki Sakoda ,  Mitsuhiro Suzuki

发明人： Kazuyuki Sakoda ,  Mitsuhiro Suzuki

IPC分类号： H04J11/00 ,  H04B3/10 ,  H04L27/26 ,  H04L27/28

CPC分类号： H04L27/2601

摘要： A transmitting apparatus, receiving apparatus, communication system, and a signal processing method for each apply a suitable modulation method and transmission path estimation method in accordance with the characteristics of the transmission information and capable of improving the transmission efficiency. At the transmission side, the method of estimation of the transmission path and the modulation method are selected in accordance with an attribute of the data to be transmitted, for example, the size of a packet to be transmitted, the transmission data is mapped by the selected modulation method, the signal is processed in accordance with the transmission path estimation method, and a transmission signal is created by increase fast Fourier transform processing and transmitted. At the reception side, the received signal is fast Fourier transformed, the transmission path is estimated by the transmission path estimation method selected at the transmission side, the received signal is corrected in accordance with the result, and the received data is reproduced in accordance with the modulation method. Therefore, it is possible to always adopt the optimum transmission method in accordance with the attribute of the transmission data etc. and possible to realize an improvement of a transmission efficiency and an enhancement of the quality of communication.

公开(公告)号：US06532223B1

公开(公告)日：2003-03-11

申请号：US09161616

申请日：1998-09-28

申请人： Kazuyuki Sakoda ,  Mitsuhiro Suzuki

发明人： Kazuyuki Sakoda ,  Mitsuhiro Suzuki

IPC分类号： H04J300

CPC分类号： H04W48/16 ,  H04B7/2656 ,  H04W36/08

摘要： A terminal in a wireless telephone system can efficiently search for available base stations. Communication of user information between a base station and a terminal is intermittently performed in a predetermined time slot period. The transmission and reception of user information at the terminal are stopped at once in a plurality of predetermined time slot periods in such intermittent communication. The cell search for receiving a frequency channel in which control information is transmitted from the base station is performed, so that available base stations are searched. The number of cell search periods can be increased or decreased from time to time.

摘要翻译： 无线电话系统中的终端可以有效地搜索可用的基站。 基站和终端之间的用户信息的通信在预定的时隙周期中被间歇地执行。 在这种间歇通信中，终端处的用户信息的发送和接收在多个预定时隙周期中一次停止。 执行接收从基站发送控制信息的频道的小区搜索，从而搜索可用的基站。 小区搜索周期的数量可以不时地增加或减少。