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    RESOLVING CHANNEL STATE INFORMATION OUTDATING
    1.
    发明授权
    RESOLVING CHANNEL STATE INFORMATION OUTDATING 有权

    公开(公告)号：EP2497311B1

    公开(公告)日：2018-12-26

    申请号：EP09752786.5

    申请日：2009-11-04

    申请人： Nokia Solutions and Networks Oy ,  Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

    发明人： ZIRWAS, Wolfgang ,  THIELE, Lars ,  JUNGNICKEL, Volker

    IPC分类号： H04W72/12

    CPC分类号： H04W72/1231 ,  H04W72/1284

    摘要： It is described a method of operating a base station and a base station which uses a communication channel depending on channel state related information and time information e.g. a prediction time. In this way, problems due to outdating of the channel state related information may be overcome and a feedback overhead may be reduced. According to other embodiments, other parameters like a used prediction method, a prediction horizon, etc. are used to provide a better scenario adaption. Other embodiments relate to combined long term prediction and short term prediction and respective timing settings. Other embodiments relate to a method of operating a user equipment and a user equipment which is adapted for communicating the required time information between the base station and the user equipment.

    VERFAHREN BZW. OFDM-VORRICHTUNG ZUR SC-FDMA-DATENÜBERTRAGUNG
    9.
    发明公开
    VERFAHREN BZW. OFDM-VORRICHTUNG ZUR SC-FDMA-DATENÜBERTRAGUNG 有权
    VERFAHREN BZW. OFDM-VORRICHTUNG ZUR SC-FDMA-DATENÜBERTRAGUNG

    公开(公告)号：EP2103070A1

    公开(公告)日：2009-09-23

    申请号：EP07727239.1

    申请日：2007-03-22

    申请人： Siemens Networks GmbH & Co. KG ,  Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V.

    发明人： FORCK, Andreas ,  GAEBLER, Holger ,  HAUSTEIN, Thomas ,  HINDELANG, Thomas ,  JUNGNICKEL, Volker ,  ZIRWAS, Wolfgang

    IPC分类号： H04L27/26

    CPC分类号： H04L27/2636

    摘要： The invention relates to a method and/or an OFDM device for SC-FDMA data transmission in which a sequence of input data (x(i), i = 1, 2, 3,..., N) is transformed by means of a discrete transformation (DFT) as transformed data signals (yi, i = 1, 2, 3,..., N) of coded and modulated data signals on first frequency channels (f1, f2, f3,..., fN) into a first frequency space over a first number of frequencies (N), the transformed data signals (yi) are mapped on second frequency channels (f1*, f2*, f3*,..., fN *,...., fNc*) in a second frequency space with a larger second number of frequencies (Nc), the transformed data signals on the second frequency channels are inverse-transformed using an inverse transformation (IFFT), and data (zi) inversely transformed in such a way are provided for transmission. On this basis, the transformed data signals (yi) are mapped into a frequency range (fi+1*,..., fi+N*) of the second frequency channels in such a way that a constant component (y1, f1) of the transformed data signals (yi) is mapped centrally within the frequency range (fi+1*,..., fi+N*).

    摘要翻译： 本发明涉及一种用于SC-FDMA数据传输的方法和/或OFDM设备，其中输入数据序列（x（i），i = 1,2,3，...，N）通过 作为第一频率信道（f1，f2，f3，...，fN）上的编码和调制数据信号的变换数据信号（yi，i = 1,2,3，...，N）的离散变换（DFT） 在第一数量的频率（N）上的第一频率空间中，变换的数据信号（yi）被映射到第二频率信道（f1 *，f2 *，f3 *，...，fN *，...， （N c）的第二频率空间中的数据（f Nc *），使用逆变换（IFFT）对第二频率信道上的变换后的数据信号进行逆变换，并且对这样的 提供传输方式。 在此基础上，经变换的数据信号（yi）被映射到第二频率信道的频率范围（fi + 1 *，...，fi + N *）中，使得恒定分量（y1，f1） 的变换数据信号（yi）在频率范围（fi + 1 *，...，fi + N *）内集中映射。