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    METHOD AND APPARATUS FOR RECOVERING OPTICAL CHANNEL TRANSPORT UNIT K FRAME, AND SYSTEM FOR TRANSMITTING OPTICAL CHANNEL TRANSPORT UNIT K FRAME
    1.
    发明公开
    METHOD AND APPARATUS FOR RECOVERING OPTICAL CHANNEL TRANSPORT UNIT K FRAME, AND SYSTEM FOR TRANSMITTING OPTICAL CHANNEL TRANSPORT UNIT K FRAME 有权
    方法和设备的OTUk一个框架结构FOR A的OTUk帧的传输恢复以及系统

    公开(公告)号：EP2456096A4

    公开(公告)日：2012-10-03

    申请号：EP09847229

    申请日：2009-07-17

    申请人： HUAWEI TECH CO LTD

    发明人： ZENG LI ,  ZHAO CHAN ,  XIE CHANGSONG

    IPC分类号： H04B10/00 ,  H04J3/16

    CPC分类号： H04J3/14 ,  H04B10/614 ,  H04B10/616 ,  H04J3/1652

    摘要： A method for recovering an OTUk frame includes: receiving an optical signal sent by using a method of multi-lane distribution from the OTUk frame to an interface of an optical module; converting the optical signal into an electrical signal, performing electrical equalization and demodulation on the electrical signal, and recovering multi-lane data from the demodulated signal; aligning and rearranging the data on each lane, according to a lane sequence identifier included in an overhead frame header of the data on each lane; and recovering the OTUk frame according to the aligned and rearranged data. According to the present invention, lane rearrangement is performed by detecting the lane sequence identifier, and the recovery of the OTUk frame is achieved. Therefore, a training sequence overhead does not need to be additionally introduced, and the influence on the system performance is avoided.

    Clock recovery apparatus
    3.
    发明公开
    Clock recovery apparatus 审中-公开
    卒中恢复DEVICE

    公开(公告)号：EP2436139A4

    公开(公告)日：2012-10-24

    申请号：EP09848601

    申请日：2009-08-24

    申请人： HUAWEI TECH CO LTD

    发明人： HAUSKE FABIAN NIKOLAUS ,  ZHAO CHAN

    IPC分类号： H04L7/027

    CPC分类号： H04L7/027 ,  H04B10/614 ,  H04B10/616

    摘要： The invention relates to a clock recovery apparatus being configured to recover clock information from an input signal. The clock recovery apparatus comprises Fourier transforming means (201) being configured to transform the input signal into a frequency domain signal upon the basis of a Fourier transform, correlating means (215) being configured to correlate the frequency domain signal to obtain a correlation value associated with a certain frequency, and clock recovery means (217) being configured to determine whether the certain frequency corresponds to a clock frequency in order to recover the clock information.