公开(公告)号：US07616658B2

公开(公告)日：2009-11-10

申请号：US10373747

申请日：2003-02-27

申请人： Atsushi Harada ,  Sadayuki Abeta ,  Mamoru Sawahashi

发明人： Atsushi Harada ,  Sadayuki Abeta ,  Mamoru Sawahashi

IPC分类号： H04J3/16 ,  H03M13/00 ,  H04W72/00

CPC分类号： H04W28/24 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0017 ,  H04L1/1825 ,  H04L1/1874 ,  H04L1/1887 ,  H04L12/5692 ,  H04W28/18

摘要： A QoS information identification unit receives a packet to be transmitted and based on QoS information, identifies the QoS type of the packet, and outputs the obtained QoS type to an adaptive wireless parameter controller as requested QoS information. The adaptive wireless parameter controller adaptively defines a retransmission parameter, an encoding scheme and a modulation scheme, based on the requested QoS information received from the QoS information identification unit, observed QoS information at the receiving side notified from the receiving side, and transmission path information. A transmission sequencing controller performs retransmission control for the packet based on the retransmission parameter defined therebefore. A data encoder encodes the packet based on the encoding scheme defined therebefore. A data modulator modulates the packet based on the modulation scheme defined therebefore.

摘要翻译： QoS信息识别单元接收要发送的分组并基于QoS信息，识别分组的QoS类型，并将所获得的QoS类型作为所请求的QoS信息输出到自适应无线参数控制器。 所述自适应无线参数控制器基于从所述QoS信息识别单元接收到的所请求的QoS信息，自适应地定义重传参数，编码方式和调制方式，从接收侧通知接收侧的观察到的QoS信息，以及传输路径信息 。 传输顺序控制器根据之前定义的重传参数对分组进行重传控制。 数据编码器基于之前定义的编码方案对分组进行编码。 数据调制器根据之前定义的调制方案对数据包进行调制。

公开(公告)号：US20070286129A1

公开(公告)日：2007-12-13

申请号：US11831189

申请日：2007-07-31

申请人： Hiroyuki Atarashi ,  Sadayuki Abeta ,  Koichi Okawa ,  Takehiro Ikeda ,  Mamoru Sawahashi ,  Fumiyuki Adachi

发明人： Hiroyuki Atarashi ,  Sadayuki Abeta ,  Koichi Okawa ,  Takehiro Ikeda ,  Mamoru Sawahashi ,  Fumiyuki Adachi

IPC分类号： H04B7/00

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.

公开(公告)号：US07185256B2

公开(公告)日：2007-02-27

申请号：US09885408

申请日：2001-06-21

申请人： Nobuhiko Miki ,  Hiroyuki Atarashi ,  Sadayuki Abeta ,  Mamoru Sawahashi

发明人： Nobuhiko Miki ,  Hiroyuki Atarashi ,  Sadayuki Abeta ,  Mamoru Sawahashi

IPC分类号： H03M13/00 ,  H04L1/18

CPC分类号： H04L1/06 ,  H04L1/0026 ,  H04L1/0034 ,  H04L1/1671 ,  H04L1/1816 ,  H04L1/1819 ,  H04L1/1845 ,  H04W52/54

摘要： A communication system and method includes the steps of: a) transmitting an ACK signal indicating a received packet includes no error or a NACK signal indicating the received packet includes error from a reception end to a transmission end, and performing automatic repeat request; b) obtaining reliability of the received packet when demodulating it at the reception end; and c) reporting from the reception end to the transmission end the reliability of the received packet utilizing the ACK/NACK signal by using not less than three levels.

摘要翻译： 一种通信系统和方法包括以下步骤：a）发送指示接收到的分组的ACK信号不包括错误或指示所接收分组的NACK信号包括从接收端到发送端的错误，并且执行自动重传请求; b）在接收端解调接收到的分组的可靠性; 以及c）通过使用不少于三个等级，使用ACK / NACK信号从接收端向发送端报告接收到的分组的可靠性。

公开(公告)号：US20060039331A1

公开(公告)日：2006-02-23

申请号：US11248307

申请日：2005-10-13

申请人： Sadayuki Abeta ,  Hiroyuki Atarashi ,  Mamoru Sawahashi

发明人： Sadayuki Abeta ,  Hiroyuki Atarashi ,  Mamoru Sawahashi

IPC分类号： H04B7/216

CPC分类号： H04L25/0232 ,  H04L5/026

摘要： A multi-carrier CDMA radio transmitting method replicates each information symbol and disposes thus-obtained information symbols along a frequency axis, multiplies the thus-obtained information symbols with a spreading code along the frequency axis, spreads the information symbols into components of a plurality of sub-carriers having different frequencies. The transmission rate of the information is changed by controlling the amount of information transmitted simultaneously by controlling the number of the information symbols to be used for spreading for the plurality of sub-carrier components for each user to which the information is to be transmitted.

摘要翻译： 多载波CDMA无线电发送方法复制每个信息符号并且沿着频率轴处理如此获得的信息符号，将如此获得的信息符号与沿着频率轴的扩展码相乘，将信息符号扩展成多个 具有不同频率的子载波。 通过控制要发送信息的每个用户的多个子载波分量的用于扩展的信息符号的数量来控制同时发送的信息量来改变信息的传输速率。

公开(公告)号：US06647003B1

公开(公告)日：2003-11-11

申请号：US09358037

申请日：1999-07-20

申请人： Sadayuki Abeta ,  Mamoru Sawahashi ,  Fumiyuki Adachi

发明人： Sadayuki Abeta ,  Mamoru Sawahashi ,  Fumiyuki Adachi

IPC分类号： H04B7216

CPC分类号： H04L25/0212 ,  H04B2201/70701 ,  H04L25/0226 ,  H04L25/0234

摘要： There are provided a channel estimation unit for achieving highly accurate channel estimation, a CDMA receiver and a CDMA transceiver with the channel estimation unit. Channel estimates of data symbols are obtained from a pilot symbol sequence which is parallel with a data symbol sequence. First, a plurality of pilot blocks are generated from the pilot symbol sequence. The channel estimates of the data symbols are obtained by calculating a sum of appropriately weighted averages of pilot symbols in the individual pilot blocks. This enables highly accurate channel estimation. More accurate channel estimation can be achieved by carrying out the channel estimation of the data symbols using the pilot symbols belonging to other slots rather than limiting to the pilot symbols in the slot to which the estimated data symbol belongs.

摘要翻译： 提供了一种用于实现高度准确的信道估计的信道估计单元，具有信道估计单元的CDMA接收机和CDMA收发器。 从与数据符号序列并行的导频符号序列获得数据符号的信道估计。 首先，从导频符号序列生成多个导频块。 通过计算各个导频块中的导频符号的适当加权平均值的和来获得数据符号的信道估计。 这使得能够进行高度准确的信道估计。 可以通过使用属于其他时隙的导频符号执行数据符号的信道估计而不是限制估计数据符号所属的时隙中的导频符号来实现更准确的信道估计。

公开(公告)号：US08310984B2

公开(公告)日：2012-11-13

申请号：US11909635

申请日：2006-03-27

申请人： Akihito Morimoto ,  Kenichi Higuchi ,  Sadayuki Abeta ,  Mamoru Sawahashi

发明人： Akihito Morimoto ,  Kenichi Higuchi ,  Sadayuki Abeta ,  Mamoru Sawahashi

IPC分类号： H04W4/00

CPC分类号： H04W72/085 ,  H04W36/18

摘要： A disclosed control apparatus performs packet communications with a mobile station and divides a coverage area into plural sectors so as to control the communications. The control apparatus comprises a transmission allocation portion that selects at least two transmission sectors to perform transmission to the mobile station in accordance with reception quality imparted from the mobile station so as to perform a transmission allocation for the mobile station; and a transmission portion that uses an identical scramble code for sector identification so as to perform transmission to the mobile station.

摘要翻译： 所公开的控制装置执行与移动站的分组通信，并将覆盖区域划分成多个扇区，以便控制通信。 所述控制装置包括发送分配部，所述发送分配部选择至少两个发送扇区，根据从所述移动台发出的接收质量向所述移动台进行发送，以对所述移动台进行发送分配; 以及传输部分，其使用相同的扰码用于扇区识别，以便向移动台执行传输。

公开(公告)号：US07646747B2

公开(公告)日：2010-01-12

申请号：US09926193

申请日：2001-01-23

申请人： Hiroyuki Atarashi ,  Sadayuki Abeta ,  Mamoru Sawahashi

发明人： Hiroyuki Atarashi ,  Sadayuki Abeta ,  Mamoru Sawahashi

IPC分类号： H04W4/00 ,  H04L5/26 ,  H04B7/212 ,  H04J1/00

CPC分类号： H04L5/023

摘要： The present invention is directed to a channel structuring method that includes a step of providing time frames segmented at a predetermined interval in communication channels of n subcarriers, a step of selecting a predetermined number of subcarriers from n subcarriers and a step of inserting a common control channel signal and a common pilot signal periodically into each of the time frames of the selected subcarriers.

摘要翻译： 本发明涉及一种信道结构化方法，其包括以下步骤：提供在n个子载波的通信信道中以预定间隔分段的时间帧;从n个子载波中选择预定数量的子载波的步骤，以及插入公共控制 频道信号和公共导频信号周期性地进入所选择的子载波的每个时间帧。

公开(公告)号：US07324434B2

公开(公告)日：2008-01-29

申请号：US10231284

申请日：2002-08-30

申请人： Mamoru Sawahashi ,  Hiroyuki Atarashi ,  Sadayuki Abeta ,  Noriyuki Maeda

发明人： Mamoru Sawahashi ,  Hiroyuki Atarashi ,  Sadayuki Abeta ,  Noriyuki Maeda

IPC分类号： H04J11/00

CPC分类号： H04B1/692 ,  H04B2201/70705 ,  H04J11/005 ,  H04L1/0003 ,  H04L5/0021 ,  H04L25/0216 ,  H04L25/0228 ,  H04L27/2647

摘要： A radio transmission system is configured to, on the occasion of radio transmission of information between a transmitter and a receiver, perform the radio transmission of information using an orthogonal frequency and code division multiplexing transmission scheme of parallelly transmitting identical information by a plurality of sub-carriers. The radio transmission system has a spreading factor variable control transmitting device for parallelly converting information channel-coded at the transmitter, according to symbols transmitted simultaneously, and for spreading a sequence of parallelized symbols in at least one of a frequency direction and a time direction by a spreading code sequence of a designated spreading factor.

摘要翻译： 无线传输系统被配置为在发射机和接收机之间的无线电传输的情况下，使用通过多个​​子载波并行发送相同信息的正交频率和码分复用传输方案来执行信息的无线电传输， 承运人 无线传输系统具有扩频因子可变控制发送装置，用于根据同时传输的符号并行转换在发射机处频道编码的信息，并且用于在频率方向和时间方向中的至少一个上扩展并行符号序列， 指定扩展因子的扩展码序列。

公开(公告)号：US07136624B2

公开(公告)日：2006-11-14

申请号：US10358341

申请日：2003-02-05

申请人： Yoshiaki Ofuji ,  Sadayuki Abeta ,  Mamoru Sawahashi

发明人： Yoshiaki Ofuji ,  Sadayuki Abeta ,  Mamoru Sawahashi

IPC分类号： H04B1/00

CPC分类号： H04W72/085 ,  H01Q1/1257 ,  H04W16/28 ,  H04W72/046 ,  H04W72/08 ,  H04W72/10 ,  Y10S370/902 ,  Y10S370/903 ,  Y10S370/905

摘要： An object is to select destination mobile stations so as to prevent directional beams directed to the respective mobile stations from interfering with each other in application of a directional antenna, and to allocate the radio resources to the mobile stations thus selected. A base station 10, which is capable of forming a plurality of directional beams directed to a plurality of mobile stations by applying a directional antenna 11 capable of adaptively varying directivity, to a transmission-reception antenna, is provided with a location estimator 19 for estimating a location of each mobile station on the basis of orientation information of the directional antenna; a reception quality estimator 22 for estimating a reception quality of each mobile station; a transmission priority calculator 21 for calculating a transmission priority of a packet to be transmitted; a determiner 16 for determining the number and directions of directional beams to be formed, based on the reception quality of each mobile station, location of each mobile station, and transmission priorities of packets; and an allocation controller 13 for allocating the plurality of directional beams thus determined, to a plurality of mobile stations.

摘要翻译： 目的是选择目的地移动台，以防止指向各个移动台的定向波束在应用定向天线时彼此干扰，并将无线电资源分配给这样选择的移动台。 能够通过将能够自适应地改变方向性的定向天线11应用于发送接收天线而能够形成指向多个移动站的多个定向波束的基站10设置有用于估计的位置估计器19 基于定向天线的取向信息的每个移动站的位置; 用于估计每个移动台的接收质量的接收质量估计器22; 发送优先级计算器21，用于计算要发送的分组的发送优先级; 基于每个移动台的接收质量，每个移动台的位置以及分组的传输优先级来确定要形成的定向波束的数量和方向的确定器16; 以及用于将如此确定的多个定向波束分配给多个移动站的分配控制器13。

公开(公告)号：US08005110B2

公开(公告)日：2011-08-23

申请号：US11837981

申请日：2007-08-13

申请人： Koichi Okawa ,  Hiroyuki Atarashi ,  Sadayuki Abeta ,  Mamoru Sawahashi

发明人： Koichi Okawa ,  Hiroyuki Atarashi ,  Sadayuki Abeta ,  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，进一步建立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。