公开(公告)号：US06963600B1

公开(公告)日：2005-11-08

申请号：US09647557

申请日：2000-01-26

申请人： Pingzhi Fan ,  Naoki Suehiro ,  Noriyoshi Kuroyanagi

发明人： Pingzhi Fan ,  Naoki Suehiro ,  Noriyoshi Kuroyanagi

IPC分类号： H04B1/707 ,  H04J13/00 ,  H04Q7/38 ,  H04B1/69 ,  H04B7/216

CPC分类号： H04J13/14 ,  H04J13/0055

摘要： A direct sequence spread spectrum system consisting of modulator and demodulator wherein the spreading sequence with zero correlation zone properties, and the despreading consists of multiplying the received signal with the same spreading sequence, followed by a low pass filter, decoder and deinterleaver. The bit rate of the spreading sequence for each user is normally much higher than the input encoded data bit rate, and therefore it spreads the system spectrum.

摘要翻译： 由调制器和解调器组成的直接序列扩频系统，其中具有零相关区属性的扩展序列，并且解扩包括将接收信号与相同的扩展序列相乘，随后是低通滤波器，解码器和解交织器。 每个用户的扩展序列的比特率通常远高于输入编码的数据比特率，因此扩展了系统频谱。

公开(公告)号：US07245650B2

公开(公告)日：2007-07-17

申请号：US10471671

申请日：2002-03-07

申请人： Noriyoshi Kuroyanagi ,  Naoki Suehiro ,  Satoru Ozawa ,  Mitsuhiro Tomita ,  Kohei Otake ,  Masakazu Takahashi

发明人： Noriyoshi Kuroyanagi ,  Naoki Suehiro ,  Satoru Ozawa ,  Mitsuhiro Tomita ,  Kohei Otake ,  Masakazu Takahashi

IPC分类号： H04B1/00

CPC分类号： H04J13/00 ,  H04J13/10

摘要： This invention provides techniques for a CDMA system having high spectrum efficiency with low transmit power. Each transmitter comprises means of selecting some core-sequences out of multiple sequences to make them convey plural data, means of producing an enveloped selected sequence with such a method as to arrange as guard sequences to a repeated sequence made by repeating each of the selected core-sequences, means of modulating a user specific orthogonal carrier frequency by the enveloped selected sequence to produce a transmit-symbol, and means of transmitting the transmit-symbols. And a receiver comprises means of demodulating a receive-symbol with one of the user specific carrier frequencies to produce a base-band receive-symbol, means of separating respective components corresponding to the sequences selected by the user, by analyzing the base-band receive-symbol with a matrix composed of a channel response vector from the user to the receiver to detect plural data on the components.

摘要翻译： 本发明提供了具有低发射功率的高频谱效率的CDMA系统的技术。 每个发射机包括从多个序列中选择一些核心序列以使它们传送多个数据的装置，用于产生包络的所选择的序列的装置，其方法是将重复的序列排列成通过重复每个所选择的核心 序列，通过包络的所选序列调制用户特定的正交载波频率以产生发射符号的装置，以及发送发射符号的装置。 并且接收机包括用用户特定载波频率之一解调接收符号以产生基带接收符号的装置，通过分析基带接收，分离对应于用户选择的序列的各个分量的装置 符号，其具有由从用户到接收器的信道响应向量组成的矩阵，以检测组件上的多个数据。

公开(公告)号：US06954422B1

公开(公告)日：2005-10-11

申请号：US09423792

申请日：1999-03-11

申请人： Naoki Suehiro ,  Noriyoshi Kuroyanagi

发明人： Naoki Suehiro ,  Noriyoshi Kuroyanagi

IPC分类号： H04B1/707 ,  H04B7/24 ,  H04B7/26 ,  H04J13/22 ,  H04L5/02 ,  H04W72/04 ,  H04J11/00

CPC分类号： H04L5/026 ,  H04B7/2628 ,  H04J13/0011 ,  H04J13/107 ,  H04J13/16

摘要： In comb-form spectrum communication systems using repeated complementary sequence modulation, a transmitting signal is constituted by assigning one set of N auto-complementary sequences to each user, where N is an integer equal to or higher than 2, and by transforming the N sequences to N repeated signals which have comb-form spectra without overlapping in frequency with one another with a method of repeating each sequence of the set of auto-complementary sequences a plurality of times, and by assigning the N complementary sequences with auto-complementary sequence characteristics to the N comb-form spectra. Thus, the near-far problem is solved by making the cross-correlation between a signal input to a user's station but addressed to another station and the user's reference code sequence, zero.

摘要翻译： 在使用重复的互补序列调制的梳状频谱通信系统中，通过向每个用户分配一组N个自适应序列构成发送信号，其中N是等于或大于2的整数，并且通过将N个序列 至N个重复信号，其具有梳状光谱，其频率彼此不重叠，以多次重复该一组自身互补序列的每个序列的方法，并且通过将N个互补序列与自身互补序列特征 到N梳形谱。 因此，通过使输入到用户站而是寻址到另一站的信号与用户的参考代码序列0之间的互相关来解决近距离问题。

公开(公告)号：US07809089B2

公开(公告)日：2010-10-05

申请号：US10592557

申请日：2005-03-10

申请人： Noriyoshi Kuroyanagi ,  Naoki Suehiro ,  Kohei Otake ,  Shinya Matsufuji ,  Satoru Ozawa ,  Mitsuhiro Tomita

发明人： Noriyoshi Kuroyanagi ,  Naoki Suehiro ,  Kohei Otake ,  Shinya Matsufuji ,  Satoru Ozawa ,  Mitsuhiro Tomita

IPC分类号： H03D3/00

CPC分类号： H04B1/71055 ,  H04B1/71072

摘要： A de-correlating discriminating system of code division multiple access signals including a system structure composed of a plurality of cells, each of the plurality of cells including a base-station and a plurality of user-stations, each of the user-stations including a user-transmitter and a user-receiver, communicating through a multi-access channel with the base station which includes a base-station receiver and a base-station transmitter, and the user-transmitter is capable of transmitting a data symbol to convey a data with a spreading sequence and a pilot symbol that is the spreading sequence to identify a channel from the user transmitter to the base-station receiver and the base-station receiver includes a minimum means square error detector to analyze an input vector that is a received signal containing both multiple users specific data responses.

摘要翻译： 一种码分多址信号的去相关识别系统，包括由多个小区组成的系统结构，所述多个小区中的每一个包括基站和多个用户站，每个用户站包括一个 用户发射机和用户接收机通过多接入信道与包括基站接收机和基站发射机的基站通信，并且用户发射机能够发送数据符号以传送数据 具有扩展序列和导频符号，该导频符号是用于识别从用户发射机到基站接收机的信道的扩展序列，并且基站接收机包括最小均方误差检测器，用于分析作为接收信号的输入向量 包含多个用户特定的数据响应。

公开(公告)号：US06421367B1

公开(公告)日：2002-07-16

申请号：US09077221

申请日：1998-09-25

申请人： Noriyoshi Kuroyanagi ,  Naoki Suehiro ,  Toshikatsu Naitoh

发明人： Noriyoshi Kuroyanagi ,  Naoki Suehiro ,  Toshikatsu Naitoh

IPC分类号： H04L2730

CPC分类号： H04B1/7093 ,  H04B1/7097 ,  H04J2013/0037

摘要： When communications are performed between a transmitter 2 and a receiver 3 via a transmission path 4, the transmitter prepares a basic sequence consisting of two-phase or four-phase tips, and transmits an expanded transmission frame which is constructed by repeatedly arranging one or a plurality of the basic sequence so as to obtain a finite length periodic sequence with a comb-form spectrum and by adding the replica of one or a plurality of tips of a back portion and front portion of the finite length periodic sequence to the outside of the front portion and the outside of the back portion of the finite length periodic sequence; and the receiver demodulates the expanded transmission frame using a matched filter which is matched with the finite length periodic sequence which is the central part of the expanded transmission frame, that is not including the added tips. In other words, the present invention can simplify the construction of communication equipment by using two-phase signals or four-phase signals.

摘要翻译： 当通过传输路径4在发射机2和接收机3之间进行通信时，发射机准备由两相或四相尖端组成的基本序列，并且发送扩展的传输帧，该扩展的传输帧是通过重复地布置一个或一个 多个基本序列，以便获得具有梳形谱的有限长度周期序列，并且通过将有限长度周期序列的后部和前部的一个或多个尖端的副本添加到 有限长度周期序列的后部的前部和外部; 并且接收机使用与作为扩展的传输帧的中心部分的有限长度周期序列匹配的匹配滤波器来解调扩展的传输帧，其不包括添加的提示。 换句话说，本发明可以通过使用两相信号或四相信号来简化通信设备的结构。

公开(公告)号：US20110096810A1

公开(公告)日：2011-04-28

申请号：US11666042

申请日：2005-10-20

申请人： Naoki Suehiro ,  Noriyoshi Kuroyanagi ,  Kohei Otake ,  Shinya Matsufuji ,  Mitsuhiro Tomita

发明人： Naoki Suehiro ,  Noriyoshi Kuroyanagi ,  Kohei Otake ,  Shinya Matsufuji ,  Mitsuhiro Tomita

IPC分类号： H04B1/00

CPC分类号： H04B1/7103 ,  H04B2201/709709 ,  H04J13/22

摘要： A spectrum spread communication method includes a step of generating a data block formed by a plurality of M bits of transmission data in the CDMA communication method, a step of modulating an orthogonal sinusoidal wave by the repeated series of the data block to generate a spread symbol, a step of transmitting the symbol, a step of performing reverse spread of the reception input by using the orthogonal sinusoidal wave, thereby completely isolating the multi-user component including the multi rate.

摘要翻译： 频谱扩展通信方法包括以下步骤：在CDMA通信方法中生成由多个M比特的发送数据形成的数据块;通过重复的数据块序列调制正交正弦波，生成扩展符号 发送符号的步骤，通过使用正交正弦波来执行接收输入的反向扩展的步骤，从而完全隔离包括多速率的多用户分量。

公开(公告)号：US20080232327A1

公开(公告)日：2008-09-25

申请号：US10592557

申请日：2005-03-10

申请人： Noriyoshi Kuroyanagi ,  Naoki Suehiro ,  Kohei Otake ,  Shinya Matsufuji ,  Satoru Ozawa ,  Mitsuhiro Tomita

发明人： Noriyoshi Kuroyanagi ,  Naoki Suehiro ,  Kohei Otake ,  Shinya Matsufuji ,  Satoru Ozawa ,  Mitsuhiro Tomita

IPC分类号： H04J13/04 ,  H04B1/707

CPC分类号： H04B1/71055 ,  H04B1/71072

摘要： here is provided a new multi-user receiver configuration technique which solves the problems of the user signal separation function of the multi-user receiver such as the interference canceller, decorrelator, and least square error detection. That is, there is provided a code-division multiplex signal decorrelation/identification method for realizing much more excellent performance than the aforementioned methods in the aspect of the power band amplitude product required for one-bit transfer as the evaluation reference of the CDMA method. A function for successively judging the best user is added to the conventional least square error detector MMSE-D shown by a dotted line in the block diagram of the successive detection type least square error detection method (SD-MMSE).

摘要翻译： 这里提供了一种新的多用户接收机配置技术，其解决了诸如干扰消除器，去相关器和最小二乘错误检测的多用户接收机的用户信号分离功能的问题。 也就是说，提供了一种码分多路复用信号去相关/识别方法，用于实现比用于CDMA方法的评估基准的一比特传送所需的功率带幅度乘积方面的上述方法更好的性能。 在连续检测型最小二乘错误检测方法（SD-MMSE）的方框图中，连续判断最佳用户的功能被添加到由虚线所示的常规最小二乘错误检测器MMSE-D中。

公开(公告)号：US5619527A

公开(公告)日：1997-04-08

申请号：US387702

申请日：1995-02-10

申请人： Noriyoshi Kuroyanagi ,  Naoki Suehiro ,  Toshikatsu Naito

发明人： Noriyoshi Kuroyanagi ,  Naoki Suehiro ,  Toshikatsu Naito

IPC分类号： H04B1/69 ,  H04B1/707 ,  H04J13/00 ,  H04J13/16

CPC分类号： H04J13/0025 ,  H04B1/69 ,  H04B1/71 ,  H04J13/16 ,  H04L27/103 ,  H04B2001/6912 ,  H04B2201/709709

摘要： A signal receiving system for spread spectrum communication including receiving a signal produced by multiplying a data to be transmitted by a predetermined spread code sequence through spread spectrum modulation and performing spread spectrum demodulation by multiplying the received signal by an attenuation spread code sequence prepared by predetermined attenuation or amplification to each chip of the spread code sequence used on that modulation.

摘要翻译： PCT No.PCT / JP94 / 00892 Sec。 371日期1995年2月10日 102（e）1995年2月10日PCT PCT。1994年6月2日PCT公布。 公开号WO95 / 01016 日期1995年1月5日用于扩展频谱通信的信号接收系统包括：通过扩展频谱调制接收由预定扩频码序列发射的数据产生的信号，并通过将接收信号乘以衰减扩展码进行扩频解调 通过预定的衰减或放大对在该调制上使用的扩展码序列的每个码片准备的序列。

公开(公告)号：US20100040162A1

公开(公告)日：2010-02-18

申请号：US12595106

申请日：2008-03-17

申请人： Naoki Suehiro

发明人： Naoki Suehiro

IPC分类号： H04L27/28 ,  H04L27/00

CPC分类号： H04B7/0697 ,  H04J11/00 ,  H04J13/18 ,  H04L5/0007 ,  H04L5/0023 ,  H04L25/0204 ,  H04L27/2636

摘要： A transmitting device and a receiving device wherein, on the transmitting side, a signal creation unit creates, as its output, a signal generated adding up the signals assuming that different data has passed through multiple virtual channels and, on the receiving side, oversampling is performed, the sampled data is distributed, and signals are detected assuming that the distributed data is the output of multiple virtual reception antennas.

摘要翻译： 一种发送设备和接收设备，其中在发送侧，信号创建单元产生假设不同数据已经通过多个虚拟信道而产生的相加信号的信号，并且在接收侧，过采样是 假设分布式数据是多个虚拟接收天线的输出，则采样数据被分配，并且检测信号。

公开(公告)号：US20080194211A1

公开(公告)日：2008-08-14

申请号：US11720379

申请日：2005-11-29

申请人： Naoki Suehiro

发明人： Naoki Suehiro

IPC分类号： H04B1/40

CPC分类号： H04J13/10 ,  H04L23/02

摘要： A wireless communication system includes plural wireless communication apparatuses. Each wireless communication apparatus includes a transmitter 10 including a spread unit 14 for spreading a transmission sequence to be transmitted with a predetermined spread sequence, a pseudo periodic sequence generating unit 13 for generating a periodic sequence in which the transmission sequence to be transmitted is repeated a predetermined number of times, and a modulating unit 15 for modulating, with a carrier frequency, the transmission sequence to be transmitted. Each wireless communication apparatus includes a receiver 20 including a demodulating unit 22 configured to demodulate a reception wave modulated with the carrier frequency and a despreading unit 27 for despreading the spread signal sequence. The transmission sequence to be transmitted includes a pilot signal used for measuring multipath properties and a transmission data signal.

摘要翻译： 无线通信系统包括多个无线通信装置。 每个无线通信装置包括：发射机10，包括扩展单元14，用于扩展要以预定扩展序列发送的发送序列;伪周期序列生成单元13，用于生成其中要发送的发送序列重复的周期性序列 以及用于以载波频率调制要发送的发送序列的调制单元15。 每个无线通信装置包括：接收机20，包括：解调单元22，被配置为解调用载波频率调制的接收波;解扩单元27，用于解扩展扩展信号序列。 要发送的发送序列包括用于测量多径性质的导频信号和发送数据信号。