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    GENERALIZED TWO-STAGE DATA ESTIMATION
    1.
    发明申请
    GENERALIZED TWO-STAGE DATA ESTIMATION 审中-公开
    一般两阶段数据估计

    公开(公告)号：WO2004064298A2

    公开(公告)日：2004-07-29

    申请号：PCT/US2004/000463

    申请日：2004-01-08

    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION ,  PAN, Jung-Lin ,  HUANG, Yuejin ,  GRIECO, Donald, M.

    Inventor： PAN, Jung-Lin ,  HUANG, Yuejin ,  GRIECO, Donald, M.

    IPC: H04L

    CPC classification number: H04B1/71052 ,  H04B1/71055 ,  H04B2201/70707 ,  H04L25/0206 ,  H04L25/0246

    Abstract: Symbols are to be recovered from signals received in a shared spectrum. Codes of the signals received in the shared spectrum are processed using a block Fourier transform (FT), producing a code block diagonal matrix. A channel response of the received signals is estimated. The channel response is extended and modified to produce a block circulant matrix and a block FT is taken, producing a channel response block diagonal matrix. The code block diagonal matrix is combined with the channel response block diagonal matrix. The received signals are sampled and processed using the combined code block diagonal matrix and the channel response block diagonal matrix with a Cholesky algorithm. A block inverse FT is performed on a result of the Cholesky algorithm to produce spread symbols. The spread symbols are despread to recover symbols of the received signals.

    Abstract translation: 符号将从在共享频谱中接收的信号中恢复。 使用块傅里叶变换（FT）处理在共享频谱中接收的信号的码，产生码块对角矩阵。 估计接收信号的信道响应。 信道响应被扩展和修改以产生块循环矩阵，并采用块FT，产生信道响应块对角矩阵。 码块对角矩阵与信道响应块对角矩阵组合。 使用Cholesky算法使用组合码块对角矩阵和信道响应块对角矩阵对接收到的信号进行采样和处理。 对Cholesky算法的结果执行块反向FT以产生扩展符号。 扩展符号被解扩以恢复接收信号的符号。

    EXTENDED ALGORITHM DATA ESTIMATOR
    2.
    发明申请
    EXTENDED ALGORITHM DATA ESTIMATOR 审中-公开
    扩展算法数据估计器

    公开(公告)号：WO2004023704A2

    公开(公告)日：2004-03-18

    申请号：PCT/US2003/028163

    申请日：2003-09-09

    Applicant: INTERDIGITAL TECHNOLOGY CORPORATION

    Inventor： PAN, Jung-Lin ,  HUANG, Yuejin ,  ZEIRA, Ariela

    IPC: H04L

    CPC classification number: H04B1/71052 ,  H04L25/03159 ,  H04L2025/03414 ,  H04L2025/03522 ,  H04L2025/03605

    Abstract: A method of data estimation for a Time Division Duplex (TDD) Code Division Multiple Access (CDMA) system or any other system using an extended algorithm (EA) in preference to a truncated algorithm (TA). The EA avoids implementation errors by choice of proper extended matrices, and accepts the use of one piece of hardware. The EA also obviates loss of multiple signals in the tail part of each data field, and avoids errors due to transformation of a Toeplitz matrix to a circulant matrix.

    Abstract translation: 一种用于时分双工（TDD）码分多址（CDMA）系统或使用优先于截断算法（TA）的扩展算法（EA）的任何其他系统的数据估计方法。 EA通过选择适当的扩展矩阵来避免实现错误，并接受使用一块硬件。 EA还消除了每个数据字段的尾部中的多个信号的丢失，并且避免了由于Toeplitz矩阵向循环矩阵的转换而导致的错误。

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