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    USER EQUIPMENT REFERENCE SIGNAL-BASED TIMING ESTIMATION
    111.
    发明申请
    USER EQUIPMENT REFERENCE SIGNAL-BASED TIMING ESTIMATION 有权
    用户设备参考信号的时序估计

    公开(公告)号：US20130156013A1

    公开(公告)日：2013-06-20

    申请号：US13678332

    申请日：2012-11-15

    Applicant: Qualcomm Incorporated

    Inventor： Yi Huang ,  Tao Luo ,  Taesang Yoo ,  Xiliang Luo

    IPC: H04W72/04

    CPC classification number: H04W72/04 ,  H04L5/0035 ,  H04L5/0048 ,  H04L5/0073 ,  H04L27/2655 ,  H04L27/2662 ,  H04L27/2672 ,  H04L27/2675

    Abstract: Estimation of timing errors is disclosed that uses user equipment reference signals (UERSs). A UE models each channel in a user equipment reference signal (UERS) as a channel on an adjacent UERS tone multiplied by a phase ramping term. This phase ramping term is determined using an estimator on the modeled channels. The UE then determines the equivalent timing error by mapping the phase ramping terms into the estimated timing errors in the time domain. In coordinated multipoint (CoMP) systems, the UERS-based timing error may be used to identify an aligned common reference signal (CRS) associated with the network entity transmitting the data. With this determination, the UE may estimate a CRS-based timing error and either substitute the CRS-based timing error for the UERS-based timing error or calculate a further average timing error based on both the CRS-based and UERS-based timing errors.

    Abstract translation: 公开了使用用户设备参考信号（UERS）的定时误差的估计。 UE将用户设备参考信号（UERS）中的每个信道建模为在相邻UERS音调乘以相位斜变项的信道。 该相位斜变项是使用建模通道上的估计器确定的。 然后，UE通过将相位斜变项映射到时域中的估计定时误差来确定等效定时误差。 在协调多点（CoMP）系统中，基于UERS的定时误差可以用于识别与发送数据的网络实体相关联的对准的公共参考信号（CRS）。 通过该确定，UE可以估计基于CRS的定时误差，并且基于用于基于UERS的定时误差替代基于CRS的定时误差，或者基于基于CRS和基于UERS的定时误差来计算另外的平均定时误差 。

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