利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

412 条记录 (耗时 0.03 秒)

    Transmitting device, receiving device, and method used in mobile communication system employing OFDM
    52.
    发明授权
    Transmitting device, receiving device, and method used in mobile communication system employing OFDM 有权
    使用OFDM的移动通信系统中使用的发送设备，接收设备和方法

    公开(公告)号：US08265043B2

    公开(公告)日：2012-09-11

    申请号：US12521208

    申请日：2007-12-27

    申请人： Yoshihisa Kishiyama ,  Kenichi Higuchi ,  Mamoru Sawahashi

    发明人： Yoshihisa Kishiyama ,  Kenichi Higuchi ,  Mamoru Sawahashi

    IPC分类号： H04J3/00

    CPC分类号： H04L27/2613 ,  H04L5/0044 ,  H04L5/0051 ,  H04L5/0058 ,  H04W52/325 ,  H04W52/346

    摘要： A transmitting device includes a transmission signal generating unit configured to generate a transmission signal by inverse-Fourier-transforming reference signals and data signals mapped to subcarriers and a transmitting unit configured to wirelessly transmit the transmission signal. In the transmitting device, a total power level allocated to signals to be transmitted in a time slot is equal to a total power level allocated to signals to be transmitted in any other time slot, and a power density per unit bandwidth of the reference signals is greater than a power density per unit bandwidth of the data signals. This configuration makes it possible to equalize the total transmission power level of all time slots and thereby to improve the power amplification efficiency. Also, with this configuration, since the reference signals are transmitted with a higher power than that for other signals, it is possible to improve the accuracy of channel estimation.

    摘要翻译： 发送装置包括发送信号生成单元，被配置为通过对映射到子载波的参考信号和数据信号进行逆傅立叶变换来产生发送信号，以及发送单元，被配置为无线发送发送信号。 在发送装置中，分配给时隙中要发送的信号的总功率电平等于分配给在任何其他时隙中发送的信号的总功率电平，并且参考信号的每单位带宽的功率密度为 大于数据信号的每单位带宽的功率密度。 该配置使得可以使所有时隙的总发送功率电平均衡，从而提高功率放大效率。 此外，利用这种配置，由于以比其他信号更高的功率发送参考信号，因此可以提高信道估计的精度。

    Base station and method of generating a synchronization channel
    54.
    发明授权
    Base station and method of generating a synchronization channel 有权
    基站和产生同步信道的方法

    公开(公告)号：US08130715B2

    公开(公告)日：2012-03-06

    申请号：US12299083

    申请日：2007-04-20

    申请人： Yoshihisa Kishiyama ,  Satoshi Nagata ,  Motohiro Tanno ,  Kenichi Higuchi ,  Mamoru Sawahashi

    发明人： Yoshihisa Kishiyama ,  Satoshi Nagata ,  Motohiro Tanno ,  Kenichi Higuchi ,  Mamoru Sawahashi

    IPC分类号： H04W4/00

    CPC分类号： H04W88/08 ,  H04J13/0062 ,  H04J13/14 ,  H04L5/0016 ,  H04L27/261 ,  H04L27/2655

    摘要： A synchronization channel is generated by generating, as a P-SCH basic waveform, a signal sequence in which codes with constant amplitude in a frequency domain are placed at intervals of a predetermined number of subcarriers; transforming the signal sequence into a time domain; multiplying the signal sequence transformed into the time domain with a predetermined code sequence; retransforming the signal sequence multiplied with the predetermined code sequence into the frequency domain; generating an S-SCH signal sequence; and multiplexing the signal sequence retransformed into the frequency domain and the S-SCH signal sequence.

    摘要翻译： 通过产生作为P-SCH基本波形的信号序列来产生同步信道，其中频域中具有恒定幅度的码以预定数量的子载波的间隔放置; 将信号序列变换成时域; 将以时间域变换的信号序列与预定码序列相乘; 将与预定码序列相乘的信号序列重新形成频域; 产生S-SCH信号序列; 并且将再次转换成频域的信号序列和S-SCH信号序列进行复用。

    Radio communications apparatus and radio communications method
    55.
    发明授权
    Radio communications apparatus and radio communications method 有权
    无线电通信装置和无线电通信方法

    公开(公告)号：US08108746B2

    公开(公告)日：2012-01-31

    申请号：US11909889

    申请日：2006-03-28

    申请人： Mamoru Sawahashi ,  Kenichi Higuchi ,  Hiroyuki Atarashi

    发明人： Mamoru Sawahashi ,  Kenichi Higuchi ,  Hiroyuki Atarashi

    IPC分类号： H04L1/18

    CPC分类号： H04L1/1893 ,  H04B2201/709709 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0015 ,  H04L1/0026 ,  H04L1/1628 ,  H04L1/1887

    摘要： A disclosed radio communications apparatus performs at least an automatic repeat request control and performs radio communications using a frame that occupies predetermined plural frequency bands. This apparatus includes a reception portion that receives feedback information about each of a plurality of frequency bands from a communications party, a determination portion that determines which frequency band among the plural frequency bands is to be used to retransmit a retransmission packet indicated by the feedback information, and a transmission portion that transmits the retransmission packet using one or more determined frequency bands.

    摘要翻译： 所公开的无线通信装置至少执行自动重发请求控制，并使用占用预定的多个频带的帧进行无线通信。 该装置包括从通信方接收关于多个频带中的每一个的反馈信息的接收部分，确定多个频带中的哪个频带将用于重发由反馈信息指示的重发分组的确定部分 以及发送部，其使用一个以上的确定的频带发送所述重发分组。

    USER APPARATUS, BASE STATION, AND METHOD IN MOBILE COMMUNICATION SYSTEM
    56.
    发明申请
    USER APPARATUS, BASE STATION, AND METHOD IN MOBILE COMMUNICATION SYSTEM 失效
    移动通信系统中的用户装置，基站和方法

    公开(公告)号：US20110237285A1

    公开(公告)日：2011-09-29

    申请号：US13150904

    申请日：2011-06-01

    申请人： Yoshihisa Kishiyama ,  Kenichi Higuchi ,  Mamoru Sawahashi

    发明人： Yoshihisa Kishiyama ,  Kenichi Higuchi ,  Mamoru Sawahashi

    IPC分类号： H04W72/04 ,  H04W88/08

    CPC分类号： H04W74/0866

    摘要： A disclosed user apparatus includes a random access channel generating unit configured to generate a random access channel; a control channel generating unit configured to generate a control channel in accordance with scheduling information received from a base station; and an uplink transmission signal generating unit configure to generate an uplink transmission signal including the random access channel or the control channel. Further, the purpose ID indicating at least whether there is a user ID uniquely allocated by the base station is included in the random access channel or the control channel.

    摘要翻译： 公开的用户装置包括：随机接入信道生成部，生成随机接入信道; 控制信道生成单元，被配置为根据从基站接收到的调度信息生成控制信道; 以及上行链路发送信号生成部，生成包含所述随机接入信道或所述控制信道的上行链路发送信号。 此外，至少指示是否存在由基站唯一分配的用户ID的目的ID被包括在随机接入信道或控制信道中。

    Transmitter, transmitting method, receiver, and receiving method for MC-CDMA communication system
    57.
    发明授权
    Transmitter, transmitting method, receiver, and receiving method for MC-CDMA communication system 有权
    用于MC-CDMA通信系统的发射机，发射方法，接收机和接收方法

    公开(公告)号：US07957361B2

    公开(公告)日：2011-06-07

    申请号：US11454983

    申请日：2006-06-19

    申请人： Yukiko Hanada ,  Kenichi Higuchi ,  Mamoru Sawahashi

    发明人： Yukiko Hanada ,  Kenichi Higuchi ,  Mamoru Sawahashi

    IPC分类号： H04B7/216

    CPC分类号： H04L27/2602 ,  H04L5/026 ,  H04L27/2665 ,  H04L27/2675

    摘要： A reception step receives a multicarrier signal containing subcarriers, at least one of which a synchronization signal is transmitted therein, multiplied only by a synchronization signal spreading code, a correlation detection step detects correlation values between the received multicarrier signal and replicas of the synchronization signal, and a timing detection step detects a FFT timing and a long code received timing according to the correlation values.

    摘要翻译： 接收步骤接收包含副载波的多载波信号，其中至少一个同步信号在其中发送，仅由同步信号扩展码相乘，相关检测步骤检测所接收的多载波信号和同步信号的副本之间的相关值， 并且定时检测步骤根据相关值检测FFT定时和长码接收定时。

    BASE STATION, USER EQUIPMENT TERMINAL AND METHOD
    58.
    发明申请
    BASE STATION, USER EQUIPMENT TERMINAL AND METHOD 失效
    基站，用户设备终端和方法

    公开(公告)号：US20110085536A1

    公开(公告)日：2011-04-14

    申请号：US12991448

    申请日：2009-05-12

    申请人： Hidekazu Taoka ,  Yoshihisa Kishiyama ,  Nobuhiko Miki ,  Kenichi Higuchi ,  Mamoru Sawahashi

    发明人： Hidekazu Taoka ,  Yoshihisa Kishiyama ,  Nobuhiko Miki ,  Kenichi Higuchi ,  Mamoru Sawahashi

    IPC分类号： H04W4/00

    CPC分类号： H04W72/1215 ,  H04J11/0026 ,  H04L5/0007 ,  H04L5/0051 ,  H04W88/10

    摘要： A base station for communicating with a first user equipment terminal within a first system band and communicating with a second user equipment terminal within a second system band includes a first reference signal sequence generating unit configured to generate M types of reference signal sequences; a second reference signal sequence generating unit configured to generate N (N>M) types of reference signal sequences; a scheduling unit configured to allocate resource blocks to the first user equipment terminal and the second user equipment terminal; a signal multiplexing unit configured to multiplex the M types of reference signal sequences into the resource block for the first user equipment terminal and multiplex the N types of reference signal sequences into the resource block for the second user equipment terminal; and a transmitting unit configured to transmit signals including the M types of reference signal sequences and the N types of reference signal sequences.

    摘要翻译： 用于与第一系统频带内的第一用户设备终端通信并与第二系统频带内的第二用户设备终端进行通信的基站包括：第一参考信号序列生成单元，被配置为生成M种参考信号序列; 第二参考信号序列生成单元，被配置为生成N（N> M）种参考信号序列; 调度单元，被配置为向所述第一用户设备终端和所述第二用户设备终端分配资源块; 信号复用单元，被配置为将M种参考信号序列复用到第一用户设备终端的资源块中，并将N类参考信号序列复用到第二用户设备终端的资源块中; 以及发送单元，被配置为发送包括M种参考信号序列和N类参考信号序列的信号。

    Base station and communication system
    59.
    发明授权
    Base station and communication system 有权
    基站和通信系统

    公开(公告)号：US07912030B2

    公开(公告)日：2011-03-22

    申请号：US12064541

    申请日：2006-08-21

    申请人： Teruo Kawamura ,  Yoshihisa Kishiyama ,  Kenichi Higuchi ,  Mamoru Sawahashi

    发明人： Teruo Kawamura ,  Yoshihisa Kishiyama ,  Kenichi Higuchi ,  Mamoru Sawahashi

    IPC分类号： H04J13/00

    CPC分类号： H04J13/00 ,  H04J13/18 ,  H04L1/0003 ,  H04L5/0023 ,  H04L5/005 ,  H04L5/023 ,  H04W56/0045 ,  H04W72/04 ,  H04W92/10

    摘要： A base station includes: a first reception timing detecting unit configured to detect a reception timing of a packet received from a first mobile station of multiple mobile stations which is situated in a first sector; a second reception timing detecting unit configured to detect a reception timing of a packet received from a second mobile station of the multiple mobile stations which is situated in a second sector; a transmission timing determining unit configured to determine transmission timings of signals transmitted from the first mobile station and the second mobile station based on the reception timings detected by the first reception timing detecting unit and the second reception timing detecting unit; a control information generating unit configured to generate transmission timing control information for the first mobile station and the second mobile station based on the transmission timings; and a radio resource allocating unit configured to allocate orthogonal radio resources to the first mobile station and the second mobile station.

    摘要翻译： 基站包括：第一接收定时检测单元，被配置为检测从位于第一扇区中的多个移动站的第一移动站接收的分组的接收定时; 第二接收定时检测单元，被配置为检测从位于第二扇区中的多个移动站的第二移动台接收的分组的接收定时; 发送定时确定单元，被配置为基于由所述第一接收定时检测单元和所述第二接收定时检测单元检测到的接收定时来确定从所述第一移动台和所述第二移动台发送的信号的发送定时; 控制信息生成单元，其基于所述发送定时生成所述第一移动台和所述第二移动台的发送定时控制信息; 以及无线资源分配单元，被配置为向所述第一移动站和所述第二移动站分配正交无线资源。

    MOBILE COMMUNICATIONS SYSTEM, BASE STATION APPARATUS, USER APPARATUS, AND METHOD
    60.
    发明申请
    MOBILE COMMUNICATIONS SYSTEM, BASE STATION APPARATUS, USER APPARATUS, AND METHOD 失效
    移动通信系统，基站装置，用户装置和方法

    公开(公告)号：US20100254287A1

    公开(公告)日：2010-10-07

    申请号：US12740072

    申请日：2008-10-31

    申请人： Mamoru Sawahashi ,  Kenichi Higuchi ,  Nobuhiko Miki ,  Motohiro Tanno

    发明人： Mamoru Sawahashi ,  Kenichi Higuchi ,  Nobuhiko Miki ,  Motohiro Tanno

    IPC分类号： H04J3/00 ,  H04W72/04

    CPC分类号： H04L1/1887 ,  H04L1/1854

    摘要： A user apparatus for use in a mobile communications system is disclosed. The user apparatus includes a unit which determines, using acknowledgement information received from a communications counterpart, whether retransmission is required for a transmitted signal; and a unit which transmits, to the communications counterpart, a signal required to be retransmitted according to a round-trip delay (RTD) which is set for the user apparatus for retransmission control, wherein, the RTD of the user apparatus is arranged to be changed, when the user apparatus enters a region which uses an RTD shorter than the RTD set for the user apparatus to an integer multiple of the shorter RTD.

    摘要翻译： 公开了一种在移动通信系统中使用的用户装置。 用户装置包括：使用从通信对方接收到的确认信息确定发送信号是否需要重传的单元; 以及向通信对方发送根据为用于重发控制的用户装置设定的往返延迟（RTD）而需要重发的信号的单元，其中，所述用户装置的RTD被布置为 当用户装置进入比用户装置的RTD短的RTD为较短RTD的整数倍的区域时。