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    • 1. 发明申请
    • Transmission system, transmitter device, and receiver device
    • 传输系统,发射机设备和接收机设备
    • US20060198472A1
    • 2006-09-07
    • US11196817
    • 2005-08-03
    • Michiharu NakamuraKohji Takeo
    • Michiharu NakamuraKohji Takeo
    • H04L27/06
    • H04L27/2676H04L25/0224H04L25/03159H04L27/2605H04L27/2607H04L27/2626H04L27/2662H04L27/2688
    • A transmission system which is simple in construction and yet can effectively avoid inter-symbol interference. A transmitter device transmits a signal block while repeating the same signal block twice consecutively. A receiver device receives the signal blocks, performs Fourier transform operation on the two identical signal blocks at respective predetermined timings, matches the phases of the two signal blocks with each other by waveform equalization in frequency domain, combines the signal blocks, and demodulates the combined signal block. With the transmission system, various propagation path conditions, in particular, changes in delay time can be flexibly coped with by just appropriately setting the Fourier transform operation timing, whereby inter-symbol interference can be avoided more effectively than in the case of using fixed-length GI.
    • 一种传输系统,结构简单,可有效避免符号间干扰。 发射机设备在连续两次重复相同的信号块的同时传输信号块。 接收机装置接收信号块,在相应的预定定时对两个相同的信号块进行傅里叶变换操作,通过频域中的波形均衡将两个信号块的相位彼此匹配,组合信号块,并对组合 信号块。 利用传输系统,通过恰当地设置傅里叶变换操作定时,可以灵活地应对各种传播路径条件,特别是延迟时间的变化,从而与使用固定频率的情况相比,可以更有效地避免符号间干扰, 长度GI。
    • 2. 发明申请
    • Packet transceiver apparatus
    • 分组收发器
    • US20050008026A1
    • 2005-01-13
    • US10808811
    • 2004-03-25
    • Yoshinori TanakaHiroyuki SekiKohji Takeo
    • Yoshinori TanakaHiroyuki SekiKohji Takeo
    • H04L1/16H04B7/26H04J13/00H04L1/00H04L1/18H04L12/70H04L29/08H04W28/04H04J3/16
    • H04L1/005H04L1/0003H04L1/0069H04L1/1819H04L1/1845H04L1/1887H04L27/3488
    • Disclosed is a packet receiving apparatus in a communication system for transmitting a packet signal upon changing over a parameter of a transmit signal in accordance with conditions of a propagation path, and, when the packet signal cannot be received correctly on a receiving side, retransmitting the packet signal, combining the packet data received previously and the retransmitted packet data and executing decode processing based upon the combined packet data. The receiving apparatus is such that if the propagation path conditions at the time of retransmission are inferior, part of the packet data extracted from a buffer is cut out and combined with a retransmission packet and decode processing is executed based upon the result of combining. If the propagation path conditions at the time of retransmission are superior, data of a plurality of packets to undergo retransmission combining is extracted from the buffer, the extracted data is combined with part of a retransmission packet and decode processing is executed based upon the result of combining.
    • 公开了一种通信系统中的分组接收装置,用于在根据传播路径的条件改变发送信号的参数时发送分组信号,并且当在接收侧不能正确地接收到分组信号时,重发 分组信号,组合先前接收到的分组数据和重发分组数据,并根据组合分组数据执行解码处理。 接收装置使得如果在重传时的传播路径条件较差,则从缓冲器提取的分组数据的一部分被切出并与重发分组组合,并且基于组合的结果执行解码处理。 如果在重传时的传播路径条件较好,则从缓冲器中提取进行重发组合的多个分组的数据,将提取的数据与重发分组的一部分组合,并基于以下结果执行解码处理: 结合。
    • 3. 发明授权
    • CDMA power control system
    • CDMA功率控制系统
    • US06385183B1
    • 2002-05-07
    • US09609067
    • 2000-06-30
    • Kohji Takeo
    • Kohji Takeo
    • H04J1300
    • H04W52/346H04W52/12H04W52/343
    • According to a power control system for a CDMA mobile radio communication network, powers at which downlink pilot signals are transmitted from base stations are controlled so that the numbers of mobile stations managed by the respective base stations will be in a predetermined range. In addition, powers at which uplink signals are transmitted from the mobile stations are controlled so that communication qualities related to the uplink signals received by the base stations will converge on a predetermined threshold value. On the basis of the above-mentioned principle, the designing of cells in the CDMA mobile radio communication network is implemented.
    • 根据用于CDMA移动无线电通信网络的功率控制系统,控制从基站发送下行链路导频信号的功率,使得由各个基站管理的移动台的数量将处于预定范围。 此外,控制从移动站发送上行链路信号的功率,使得与由基站接收的上行链路信号相关的通信质量将收敛于预定阈值。 在上述原理的基础上,实现了CDMA移动无线通信网络中的小区的设计。
    • 4. 发明申请
    • Communication apparatus
    • 通讯设备
    • US20070230428A1
    • 2007-10-04
    • US11439140
    • 2006-05-24
    • Hiroyuki SekiKohji Takeo
    • Hiroyuki SekiKohji Takeo
    • H04Q7/28
    • H04W72/10
    • A communication apparatus that enhances throughput even in a multi-cell environment without limiting a frequency band which can be used in each cell. A classification section divides terminals in a cell into classes. A channel information receiving section receives channel information according to a plurality of frequency bands from each terminal. A scheduling section assigns the plurality of frequency bands the number of which is determined according to the classes to the terminals in descending order of priority of class on the basis of the channel information received by the channel information receiving section.
    • 一种甚至在多小区环境中增强吞吐量的通信装置,而不限制每个小区可以使用的频带。 分类部分将单元格中的终端分成类。 频道信息接收部分根据来自每个终端的多个频带接收频道信息。 调度部根据由频道信息接收部接收到的频道信息,按照该等级的优先级的降序,将根据类别确定的数量的多个频带分配给终端。