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    Feedback device, feedback method, scheduling apparatus and scheduling method
    1.
    发明专利
    Feedback device, feedback method, scheduling apparatus and scheduling method 审中-公开

    公开(公告)号：JP2010537597A

    公开(公告)日：2010-12-02

    申请号：JP2010522162

    申请日：2007-08-31

    Applicant: 富士通株式会社

    Inventor： ジョウ，ホア ,  宏行 林

    IPC: H04J99/00 ,  H04J11/00 ,  H04W16/28 ,  H04W24/10

    CPC classification number: H04B7/0689 ,  H04B7/0417 ,  H04B7/0626

    Abstract: ＳＵ−ＭＩＭＯモードとＭＵ−ＭＩＭＯモードとを切り替えるＭＩＭＯ制御局におけるスケジューリング装置は、複数のＭＩＭＯ端末の各々からフィードバック情報を受信する。 スケジューリング装置は、すべての前記端末のうちＳＵ−ＭＩＭＯ最適性能尺度を有する端末を選択するＳＵ−ＭＩＭＯ選択部と、前記端末を少なくとも１つの集合にグループ化して、ＭＵ−ＭＩＭＯ最適性能尺度を有する端末の集合を選択するＭＵ−ＭＩＭＯ選択部と、前記ＳＵ−ＭＩＭＯ最適性能尺度と前記ＭＵ−ＭＩＭＯ最適性能尺度とを比較して、前記ＳＵ−ＭＩＭＯモードと前記ＭＵ−ＭＩＭＯモードとを切り替える切り替え部とを含む。

    Frame synchronization device and method in a broadband wireless communication system
    4.
    发明专利
    Frame synchronization device and method in a broadband wireless communication system 有权

    公开(公告)号：JP5109754B2

    公开(公告)日：2012-12-26

    申请号：JP2008084960

    申请日：2008-03-27

    Applicant: 富士通株式会社

    Inventor： ▲シン▼ 王 ,  勇太 中谷 ,  秀削 鈴木 ,  道春 中村 ,  建民 周 ,  宏行 林

    IPC: H04J11/00 ,  H04J1/00 ,  H04J99/00 ,  H04L7/08

    CPC classification number: H04L27/2656 ,  H04L27/2676

    Abstract: The present invention relates to an apparatus and method of frame synchronization in broad band wireless communication systems. In an apparatus of frame synchronization in a mobile station, a time variant phase rotation compensator eliminates time variant phase rotation carried in received signals by conjugated multiplication between adjacent signal samples. Then, the processed signal is fed into a delay correlator to calculate a plurality of correlations between two successive frames. A local power calculator acquires an average power of several symbols centered on delayed correlation values. A normalizer normalizes the delayed correlation values with a local average power corresponding to the delayed correlation values. A maximum value detector selects the maximum value from normalized correlation values to trigger frame synchronizing and timing signals.

    Inter-carrier interference processing apparatus, a method and a receiver using the same
    9.
    发明专利
    Inter-carrier interference processing apparatus, a method and a receiver using the same 有权

    公开(公告)号：JP5256900B2

    公开(公告)日：2013-08-07

    申请号：JP2008187853

    申请日：2008-07-18

    Applicant: 富士通株式会社

    Inventor： ジャン ジエ ,  ティエヌ ジュヌ ,  宏行 林

    IPC: H04J11/00 ,  H04B7/04

    Abstract: The invention provides an inter-carrier interference processing device, a method thereof and a receiver utilizing the device and the method. A reconstruction and cancellation device of the interference between carriers is applied to the receiver of a wireless communication system. The receiver comprises: a pilot frequency extraction unit, a data extraction unit, a signal channel estimation unit and an equalizer unit. The inter-carrier interference processing device comprises: a computing unit of the inter-carrier interference channel parameter for calculating the channel parameter of the channel which causes the inter-carrier interference according to the channel estimation result; a symbol judgment unit for carrying out the symbol judgment on the output and obtaining the symbol of the signal; a reconstruction unit of the inter-carrier interference for reconstructing the inter-carrier interference of the input signal according to the output of the computing unit of the inter-carrier interference channel parameter and the output of the symbol judgment unit; a cancellation processing unit for carrying out the cancellation of the reconstructed inter-carrier interference, and returning the processing result to the pilot frequency extraction unit and the data extraction unit.

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