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81. 发明授权

US07647060B2 Wireless communications system and method using transmission timing control 失效
标题翻译：无线通信系统和方法采用传输定时控制
公开(公告)号：US07647060B2
公开(公告)日：2010-01-12
申请号：US10959190
申请日：2004-10-07
申请人： Teruo Kawamura , Hiroyuki Atarashi , Mamoru Sawahashi
发明人： Teruo Kawamura , Hiroyuki Atarashi , Mamoru Sawahashi
IPC分类号： H04B15/00 , H03C1/62 , H04B17/00
CPC分类号： H04W56/0045 , H04B2201/709709 , H04W24/00 , H04W28/26 , H04W92/10
摘要： A wireless communications system includes a base station and multiple mobile stations performing wireless communication with the base station in a DS-CDMA scheme. Each of the mobile stations has a transmission unit configured to transmit a timing difference detection packet to the base station, prior to transmitting packet data. The base station has a transmission timing control unit configured to detect a difference in signal receive timing from the mobile stations based on the timing difference detection packet, produce transmission timing control information for each of the mobile stations based on the detection result, and supply the transmission timing control information to each of the mobile stations to cause the mobile stations to adjust the transmission timing of the packet data.
摘要翻译：无线通信系统包括基站和在DS-CDMA方案中与基站进行无线通信的多个移动台。每个移动站具有发送单元，其被配置为在发送分组数据之前向基站发送定时差检测分组。基站具有发送定时控制部，其基于定时差检测分组来检测来自移动台的信号接收定时的差异，根据检测结果生成各个移动台的发送定时控制信息，向各个移动台发送定时控制信息，使移动台调整分组数据的发送定时。

82. 发明授权

US07606196B2 Radio communication system, radio communication method, and transmitter apparatus and receiver apparatus suitable for use in the same 有权
标题翻译：无线通信系统，无线通信方法以及适用于其的发送装置和接收装置
公开(公告)号：US07606196B2
公开(公告)日：2009-10-20
申请号：US10679488
申请日：2003-10-07
申请人： Noriyuki Maeda , Hiroyuki Atarashi , Mamoru Sawahashi
发明人： Noriyuki Maeda , Hiroyuki Atarashi , Mamoru Sawahashi
IPC分类号： H04W4/00 , H04J4/00
CPC分类号： H04L1/0071 , H04L1/0009 , H04L1/0041 , H04L1/0045 , H04L5/026 , H04L27/2608
摘要： The object of the present invention is to prevent continued reception of unreliable information symbols at the receiver apparatus 200 in the OFDM radio communication system, so that it is possible to improve transmission quality. The radio communication system according to the present invention comprises a transmitter apparatus 100 configured to estimate conditions of propagation paths used in the radio communication, arrange information symbols along the direction of the frequency axis in accordance with a predetermined pattern based on the estimated conditions of propagation paths, and transmit a radio communication signal including the arranged information symbols and a receiver apparatus 200 configured to receive the radio communication signal, and rearrange the information symbol included in the radio communication signal along the direction of the frequency axis in accordance with a reverse pattern to the predetermined pattern.
摘要翻译：本发明的目的是防止在OFDM无线电通信系统中在接收机装置200处继续接收不可靠的信息符号，从而可以提高传输质量。根据本发明的无线电通信系统包括发射机设备100，被配置为估计在无线电通信中使用的传播路径的条件，根据估计的传播条件，根据预定模式沿着频率轴的方向布置信息符号并发送包括排列的信息符号的无线电通信信号和被配置为接收无线电通信信号的接收机装置200，并且根据反向模式沿着频率轴的方向重新排列包括在无线电通信信号中的信息符号到预定图案。

83. 发明申请

US20090161733A1 RADIO COMMUNICATION SYSTEM, TRANSMITTER, RECEIVER AND RADIO COMMUNICATING METHOD 有权
标题翻译：无线电通信系统，发射机，接收机和无线电通信方法
公开(公告)号：US20090161733A1
公开(公告)日：2009-06-25
申请号：US12391706
申请日：2009-02-24
申请人： Noriyuki MAEDA , Hiroyuki Atarashi , Mamoru Sawahashi
发明人： Noriyuki MAEDA , Hiroyuki Atarashi , Mamoru Sawahashi
IPC分类号： H04B1/707
CPC分类号： H04L1/0001 , H04B1/692 , H04L1/0025 , H04L1/0071 , H04L5/0016 , H04L5/006 , H04L25/0216 , H04L25/0222 , H04L27/0008 , H04L27/2602
摘要： A radio communication system having a radio transmitter and a radio receiver and adopting multiple carrier modulation and code spreading modulation methods is disclosed. The radio communication system comprises a selecting unit provided in the radio transmitter or the radio receiver, for selecting an interleaving mode out of plural interleaving modes depending on radio propagation path conditions; a symbol configuration unit provided in the radio transmitter; and a symbol reconfiguration unit provided in the radio receiver. The symbol configuration unit configures information symbols to be transmitted by the radio transmitter in both time and frequency directions in a pattern according to the interleaving mode selected by the selecting unit, and the symbol reconfiguration unit reconfigures information symbols received by the radio receiver in both time and frequency directions in an inverse pattern of the pattern.
摘要翻译：公开了一种具有无线电发射机和无线电接收机并采用多载波调制和码扩展调制方法的无线电通信系统。无线电通信系统包括：设置在无线电发射机或无线电接收机中的选择单元，用于根据无线电传播路径条件从多个交织模式中选择交织模式; 设置在无线发射机中的符号配置单元; 以及在无线电接收机中提供的符号重新配置单元。符号配置单元根据由选择单元选择的交织模式，以时间和频率的方式在无线电发射机中配置要发送的信息符号，并且符号重新配置单元在时间上重新配置由无线电接收机接收的信息符号和频率方向相反的图案。

84. 发明授权

US07526011B2 Radio communication system, transmitter, receiver and radio communicating method 有权
标题翻译：无线电通信系统，发射机，接收机和无线电通信方法
公开(公告)号：US07526011B2
公开(公告)日：2009-04-28
申请号：US11020192
申请日：2004-12-27
申请人： Noriyuki Maeda , Hiroyuki Atarashi , Mamoru Sawahashi
发明人： Noriyuki Maeda , Hiroyuki Atarashi , Mamoru Sawahashi
IPC分类号： H04B1/00
CPC分类号： H04L1/0001 , H04B1/692 , H04L1/0025 , H04L1/0071 , H04L5/0016 , H04L5/006 , H04L25/0216 , H04L25/0222 , H04L27/0008 , H04L27/2602
摘要： A radio communication system having a radio transmitter and a radio receiver and adopting multiple carrier modulation and code spreading modulation methods is disclosed. The radio communication system comprises a selecting unit provided in the radio transmitter or the radio receiver, for selecting an interleaving mode out of plural interleaving modes depending on radio propagation path conditions; a symbol configuration unit provided in the radio transmitter; and a symbol reconfiguration unit provided in the radio receiver. The symbol configuration unit configures information symbols to be transmitted by the radio transmitter in both time and frequency directions in a pattern according to the interleaving mode selected by the selecting unit, and the symbol reconfiguration unit reconfigures information symbols received by the radio receiver in both time and frequency directions in an inverse pattern of the pattern.
摘要翻译：公开了一种具有无线电发射机和无线电接收机并采用多载波调制和码扩展调制方法的无线电通信系统。无线电通信系统包括：设置在无线电发射机或无线电接收机中的选择单元，用于根据无线电传播路径条件从多个交织模式中选择交织模式; 设置在无线发射机中的符号配置单元; 以及在无线电接收机中提供的符号重新配置单元。符号配置单元根据由选择单元选择的交织模式，以时间和频率的方式在无线电发射机中配置要发送的信息符号，并且符号重新配置单元在时间上重新配置由无线电接收机接收的信息符号和频率方向相反的图案。

85. 发明授权

US07397839B2 OFDM communication system and method 失效
标题翻译： OFDM通信系统和方法
公开(公告)号：US07397839B2
公开(公告)日：2008-07-08
申请号：US11041231
申请日：2005-01-25
申请人： Noriyuki Maeda , Hiroyuki Atarashi , Mamoru Sawahashi
发明人： Noriyuki Maeda , Hiroyuki Atarashi , Mamoru Sawahashi
IPC分类号： H04B1/69 , H04J11/00
CPC分类号： H04L27/2613 , H04L5/026 , H04L27/261
摘要： A transmitter used in a wireless communication system based on an orthogonal frequency division multiplexing (OFDM) scheme includes a determination unit that determines a spreading factor and an amplitude for a control channel based on at least one of signal quality information and interference information in data transmission. The transmitter also includes a multiplexing unit that multiplexes a data channel with the control channel having been code-spread based on the spreading factor and the amplitude. A modulator then modulates the multiplexed signal in the OFDM scheme for transmission as OFDM symbols.
摘要翻译：基于正交频分复用（OFDM）方案的无线通信系统中使用的发射机包括确定单元，其基于数据传输中的信号质量信息和干扰信息中的至少一个来确定控制信道的扩频因子和振幅。发射机还包括多路复用单元，其基于扩频因子和振幅将数据信道与已经进行了码扩展的控制信道进行复用。然后，调制器在OFDM方案中对多路复用信号进行调制，以作为OFDM符号传输。

86. 发明授权

US07315566B2 Mobile communication system, channel synchronization establishing method, and mobile station 失效
标题翻译：移动通信系统，信道同步建立方法和移动台
公开(公告)号：US07315566B2
公开(公告)日：2008-01-01
申请号：US10366385
申请日：2003-02-14
申请人： Motohiro Tanno , Hiroyuki Atarashi , Mamoru Sawahashi
发明人： Motohiro Tanno , Hiroyuki Atarashi , Mamoru Sawahashi
IPC分类号： H04B1/707
CPC分类号： H04L27/2656 , H04L27/261 , H04L27/2675
摘要： A mobile communication system 1 according to the present invention comprises base station 30 and mobile station 10. The base station 30 sends a pilot symbol sequence known to the mobile station 10, to the mobile station 10, using a plurality of carriers for downward channels, and performs communication with the mobile station 10 while multiplying the channels by frequencywise same scrambling codes every symbol period. The mobile station 10 is provided with a peak detector 17 for calculating cross correlation allowing for a phase difference of the scrambling codes, between frequencywise pilot symbol sequences received from the base station 30, thereby detecting a radio frame boundary.
摘要翻译：根据本发明的移动通信系统1包括基站30和移动台10。基站30向移动台10发送用于下行信道的多个载波，向移动台10发送导频符号序列，并且在与每个符号频率相同的扰码对信道进行乘法同时与移动台10进行通信期。移动台10设置有峰值检测器17，用于计算从基站30接收的频率导频符号序列之间的扰频相位差的互相关，从而检测无线帧边界。

87. 发明申请

US20070291701A1 SINGLE CARRIER/DS-CDMA PACKET TRANSMISSION METHOD, AN UPLINK PACKET TRANSMISSION METHOD IN A MULTI-CARRIER/DS-CDMA MOBILE COMMUNICATIONS SYSTEM, AND A STRUCTURE OF A DOWNLINK CHANNEL IN A MULTI-CARRIER/DS-CDMA MOBILE COMMUNICATIONS SYSTEM 失效
标题翻译：单载波/ DS-CDMA分组传输方法，多载波/ DS-CDMA移动通信系统中的上行链路分组传输方法，以及多载波/ DS-CDMA移动通信系统中的下行链路信道的结构
公开(公告)号：US20070291701A1
公开(公告)日：2007-12-20
申请号：US11837981
申请日：2007-08-13
申请人： Hiroyuki Atarashi , Sadayuki Abeta , Koichi Okawa , Mamoru Sawahashi
发明人： Hiroyuki Atarashi , Sadayuki Abeta , Koichi Okawa , Mamoru Sawahashi
IPC分类号： H04B7/216
CPC分类号： H04W72/1252 , H04B1/707 , H04J13/00 , H04L5/0019 , H04L5/0048 , H04L5/0053 , H04L5/0064 , H04L5/0087 , H04L5/0092 , H04L5/06 , H04W72/06
摘要： The present invention provides a single carrier/DS-CDMA packet transmission method wherein a predetermined time slot is assigned to reservation demand packet transmission in regard to a spreading code, and the reservation demand packet and data packets are time-multiplexed for transmission. An uplink packet transmission method in a multi-carrier/DS-CDMA mobile communication system is also provided, wherein frames are set up in each communication channel of a subcarrier, time slots which are time-segments of the frames are set up further, and a mobile station spreads a packet to be transmitted by a spreading code and the information signal is transmitted to a base station in a predetermined time slot. A downlink channel configuration in a multi-carrier/DS-CDMA mobile communication system is further provided, wherein a plurality of communication channels assigned to each of a plurality of subcarriers are divided for every predetermined time frame, and multiplexed, and the plurality of the communication channels assigned to each subcarrier include a common-control channel used by a plurality of users in common, and communication channels peculiar to each user.
摘要翻译：本发明提供了一种单载波/ DS-CDMA分组传输方法，其中相对于扩展码将预定时隙分配给预留请求分组传输，并且预留请求分组和数据分组被时分复用以进行传输。还提供了一种在多载波/ DS-CDMA移动通信系统中的上行链路分组传输方法，其中在子载波的每个通信信道中建立帧，进一步设置作为帧的时间段的时隙，以及移动台通过扩展码扩展要发送的分组，并且在预定时隙中将信息信号发送到基站。还提供了一种多载波/ DS-CDMA移动通信系统中的下行链路信道配置，其中分配给多个子载波中的每一个的多个通信信道被划分为每个预定时间帧，并被多路复用，并且多个分配给每个子载波的通信信道包括共同使用的公共控制信道和每个用户特有的通信信道。

88. 发明授权

US07092431B2 Receiver, transmitter, communication system, and method of communication 有权
公开(公告)号：US07092431B2
公开(公告)日：2006-08-15
申请号：US10329421
申请日：2002-12-27
申请人： Noriyuki Maeda , Hiroyuki Atarashi , Sadayuki Abeta , Mamoru Sawahashi
发明人： Noriyuki Maeda , Hiroyuki Atarashi , Sadayuki Abeta , Mamoru Sawahashi
IPC分类号： H04L27/30
CPC分类号： H04B7/0842
摘要： A receiver, comprising a plurality of antennas configured to receive signals that are obtained by multiplying a plurality of data symbols transmitted over a plurality of data channels using spreading codes for each of the data channels, the data symbol being transmitted over a plurality of sub-carriers having different frequencies; a spreading code multiplier configured to multiply reception signals received by the plurality of antennas using spreading codes for the data channels corresponding to the reception signals; a weight controller configured to adjust antenna weights by which a reception signal received by each antenna is to be multiplied, and sub-carrier weights by which a reception signal received over each sub-carrier is to be multiplied; a weight multiplier configured to multiply the reception signals by the antenna weights and the sub-carrier weights adjusted by the weight controller; and a combining unit configured to combine the reception signals multiplied by the antenna weights and the sub-carrier weights at the weight multiplier among the antennas and over spreading code duration of the spreading codes.

89. 发明申请

US20050276242A1 Base station, a mobile station, a radio communications system, and a radio transmission method using spread spectrum and chip repetition 有权
标题翻译：基站，移动台，无线电通信系统以及使用扩展频谱和码片重复的无线电传输方法
公开(公告)号：US20050276242A1
公开(公告)日：2005-12-15
申请号：US11071195
申请日：2005-03-04
申请人： Yoshikazu Goto , Hiroyuki Atarashi , Mamoru Sawahashi
发明人： Yoshikazu Goto , Hiroyuki Atarashi , Mamoru Sawahashi
IPC分类号： H04B1/7097 , H04J11/00 , H04J13/00 , H04L27/01 , H04W16/28 , H04W72/04 , H04W76/02 , H04B7/216
CPC分类号： H04B1/707 , H04B1/692 , H04B2201/70706 , H04B2201/709709
摘要： A base station, a mobile station, a radio communications system, and a radio transmission method are disclosed. The base station includes a control information determining unit configured to determine control information that includes a spreading factor, the number of chip repetitions, and a phase unique to the mobile station, based on at least one of information about the type of cell environments in which the mobile station is present, information about the number of mobile stations that are present in the cell, information about information rate required by the mobile station, information about a type of traffic, information about a radio parameter of the mobile station, information about a propagation path condition, and information about interference from an adjacent cell, and configured to transmit the spreading factor, the number of chip repetitions, and the unique phase of the mobile station that is determined to the mobile station.
摘要翻译：公开了一种基站，移动台，无线通信系统和无线传输方法。基站包括：控制信息确定单元，被配置为基于以下信息中的至少一个来确定包括扩展因子，码片重复次数和移动台唯一的相位的控制信息，其中，关于小区环境的类型的信息移动站存在，关于小区中存在的移动站的数量的信息，关于移动站所需的信息速率的信息，关于业务类型的信息，关于移动站的无线电参数的信息，关于移动站的信息传播路径条件和关于来自相邻小区的干扰的信息，并且被配置为发送确定给移动台的扩频因子，码片重复次数和移动台的唯一相位。

90. 发明申请

US20050088996A1 Wireless communications system and method using transmission timing control 失效
标题翻译：无线通信系统和方法采用传输定时控制
公开(公告)号：US20050088996A1
公开(公告)日：2005-04-28
申请号：US10959190
申请日：2004-10-07
申请人： Teruo Kawamura , Hiroyuki Atarashi , Mamoru Sawahashi
发明人： Teruo Kawamura , Hiroyuki Atarashi , Mamoru Sawahashi
IPC分类号： H04J13/00 , H04B1/7073 , H04B7/26 , H04W24/00 , H04W28/26 , H04W56/00 , H04W76/02 , H04W92/10 , H04B7/216
CPC分类号： H04W56/0045 , H04B2201/709709 , H04W24/00 , H04W28/26 , H04W92/10
摘要： A wireless communications system includes a base station and multiple mobile stations performing wireless communication with the base station in a DS-CDMA scheme. Each of the mobile stations has a transmission unit configured to transmit a timing difference detection packet to the base station, prior to transmitting packet data. The base station has a transmission timing control unit configured to detect a difference in signal receive timing from the mobile stations based on the timing difference detection packet, produce transmission timing control information for each of the mobile stations based on the detection result, and supply the transmission timing control information to each of the mobile stations to cause the mobile stations to adjust the transmission timing of the packet data.
摘要翻译：无线通信系统包括基站和在DS-CDMA方案中与基站进行无线通信的多个移动台。每个移动站具有发送单元，其被配置为在发送分组数据之前向基站发送定时差检测分组。基站具有发送定时控制部，其基于定时差检测分组来检测来自移动台的信号接收定时的差异，根据检测结果生成各个移动台的发送定时控制信息，向各个移动台发送定时控制信息，使移动台调整分组数据的发送定时。

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