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    • 76. 发明授权
    • Radio communication device and radio communication method
    • 无线电通信设备和无线电通信方法
    • US08654752B2
    • 2014-02-18
    • US13057562
    • 2009-06-23
    • Masayuki HoshinoSeigo NakaoAkihiko Nishio
    • Masayuki HoshinoSeigo NakaoAkihiko Nishio
    • H04L27/06
    • H04B7/0671H04B1/713H04B7/0426H04B7/0617H04J11/0033H04L1/0041H04L1/0061H04L25/022H04L25/0232H04L25/03159H04L27/2636H04L27/2646H04L27/265
    • It is possible to obtain the diversity effect in a plurality of slots while preventing complication of a scheduler or inefficient use of resources, to eliminate the phenomenon in which SINR significantly decreases in a specific slot, and to avoid deterioration of demodulation performance. In a radio communication system which performs transmission in a sub-frame unit having two slots temporally continuously arranged, when pre-coding is performed by multiplying a signal to be output to a plurality of antennas by a pre-coding weight, CDD is used to shift a phase such that the phase in the pre-coding weight is cyclically changed on the frequency axis. The phase shift amount to be applied by the CDD is set to change by 2π in an allocated resource block (1RB) of the local device, and PVS is applied such that the phase shift amount differs by π between the weight W0 of the first half slot and the weight W1 of the second half slot in the sub-frame.
    • 可以在防止调度器的复杂化或资源的低效利用的情况下获得多个时隙中的分集效应,以消除在特定时隙中SINR显着降低的现象,并且避免解调性能的恶化。 在具有时间连续排列的两个时隙的子帧单位进行发送的无线通信系统中,当通过将预编码权重乘以要输出的信号与多个天线进行预编码时,使用CDD 移动相位使得预编码权重中的相位在频率轴上周期性地改变。 在本地设备的分配资源块(1RB)中,要由CDD施加的相移量被设置为改变2pi,并且施加PVS使得相移量在上半部分的权重W0之间不同pi 时隙和子帧中的第二半时隙的权重W1。
    • 77. 发明授权
    • Method and device for setting demodulation reference signals in wireless communication system
    • 在无线通信系统中设置解调参考信号的方法和装置
    • US08649347B2
    • 2014-02-11
    • US13378134
    • 2010-04-09
    • Zhi ZhangMing XuMasayuki HoshinoSeigo NakaoDaichi Imamura
    • Zhi ZhangMing XuMasayuki HoshinoSeigo NakaoDaichi Imamura
    • H04W4/00
    • H04L5/0048H04L5/0035H04W72/00H04W72/04
    • Demodulation reference signals and data are transmitted to a receiving terminal through time/frequency resources of the radio communication system using a resource block as a base unit. The method includes arranging at least two orthogonal DM-RSs in two edge OFDM symbols for resource blocks of respective cells, a frequency offset existing between cells at positions of the orthogonal DM-RSs in the edge OFDM symbols, performing puncturing at positions corresponding to the orthogonal DM-RSs of the other cells in the edge OFDM symbols of the respective cells, arranging superimposing DM-RSs in the two edge OFDM symbols in a resource block of one cell and arranging the superimposing DM-RSs at positions corresponding to the resource blocks of the other cells, wherein positions of the superimposing DM-RSs are set between the positions of the orthogonal DM-RSs in the respective edge OFDM symbols.
    • 解调参考信号和数据通过使用资源块作为基本单元的无线电通信系统的时间/频率资源被发送到接收终端。 该方法包括在两个边缘OFDM符号中为相应小区的资源块布置至少两个正交的DM-RS,频率偏移存在于边缘OFDM符号中的正交DM-RS的位置处的小区之间,在对应于 在各个小区的边缘OFDM符号中的其他小区的正交DM-RS,将两个边缘OFDM符号中的DM-RS叠加在一个小区的资源块中,并将叠加的DM-RS布置在与资源块对应的位置 其中叠加DM-RS的位置被设置在各边缘OFDM符号中的正交DM-RS的位置之间。
    • 80. 发明申请
    • RELAY STATION, BASE STATION AND COMMUNICATION METHOD
    • 继电站,基站和通信方法
    • US20130163507A1
    • 2013-06-27
    • US13819292
    • 2012-02-08
    • Masayuki HoshinoHidetoshi SuzukiAyako HoriuchiDaichi Imamura
    • Masayuki HoshinoHidetoshi SuzukiAyako HoriuchiDaichi Imamura
    • H04W88/04
    • H04B7/155H04L27/28H04W72/04H04W88/04
    • Provided is a relay station that is capable of improving PDSCH channel estimation accuracy, even in a case where a DL grant is provided that gives instructions for downlink data allocation for R-PDCCH. In this device, a signal separation unit (203) receives, of the control information and data and reference signals sent from a base station (100), the reference signals disposed in a first region and a second region within a pre-coding RB group (PRG) comprising one or more PRBs of the plurality of PRBs constituting a divided frequency region; the control information disposed in the first region; and the data disposed in the second region. A demodulation unit (204) demodulates the data on the basis of the reference signals. The demodulation unit (204) demodulates the data using the reference signals disposed in the second region.
    • 即使在提供给R-PDCCH的下行链路数据分配指令的DL授权的情况下,也能够提高PDSCH信道估计精度。 在该装置中,信号分离单元(203)接收从基站(100)发送的控制信息和数据以及参考信号中设置在预编码RB组内的第一区域和第二区域中的参考信号 (PRG),包括构成分频区域的多个PRB中的一个或多个PRB; 所述控制信息设置在所述第一区域中; 以及设置在第二区域中的数据。 解调单元(204)根据参考信号对数据进行解调。 解调单元(204)使用设置在第二区域中的参考信号来解调数据。