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    FREQUENCY AND TIMING ERROR ESTIMATION AND CORRESPONDING CHANNEL CHARACTERIZATION IN A COMMUNICATION SYSTEM
    41.
    发明申请
    FREQUENCY AND TIMING ERROR ESTIMATION AND CORRESPONDING CHANNEL CHARACTERIZATION IN A COMMUNICATION SYSTEM 审中-公开
    通信系统中的频率和时间误差估计及相应的信道特征

    公开(公告)号：WO2005057943A3

    公开(公告)日：2005-12-29

    申请号：PCT/US2004040413

    申请日：2004-12-02

    Applicant: MOTOROLA INC ,  MAKHLOUF ISAM R ,  JASPER STEVEN C

    Inventor： MAKHLOUF ISAM R ,  JASPER STEVEN C

    IPC: G01R13/00 ,  G01R29/26 ,  G06F19/00 ,  H04L27/00 ,  H04L27/26 ,  H04Q20060101

    CPC classification number: H04L27/2657 ,  H04L27/266 ,  H04L27/2665 ,  H04L2027/0034

    Abstract: A method for determining a frequency error over at least one frequency search space for a received signal, the method including the steps of: calculating a first noise estimation for a first frequency offset in a frequency search space; calculating at least a second noise estimation for a second frequency offset in the frequency search space; and determining a minimum noise estimation from the calculated noise estimations, wherein the frequency error is the frequency offset corresponding to the minimum noise estimation.

    Abstract translation: 一种用于确定接收信号的至少一个频率搜索空间上的频率误差的方法，该方法包括以下步骤：计算频率搜索空间中第一频率偏移的第一噪声估计; 针对频率搜索空间中的第二频率偏移计算至少第二噪声估计; 以及从所计算的噪声估计中确定最小噪声估计，其中，所述频率误差是与最小噪声估计相对应的频率偏移。

    ANTENNA METHOD AND APPARATUS
    42.
    发明申请
    ANTENNA METHOD AND APPARATUS 审中-公开
    天线方法和装置

    公开(公告)号：WO2004062027A3

    公开(公告)日：2005-06-09

    申请号：PCT/US0337249

    申请日：2003-11-19

    Applicant: MOTOROLA INC

    Inventor： TURNEY WILLIAM J ,  JASPER STEVEN C

    IPC: H01Q20060101 ,  H01Q9/16 ,  H04B1/56 ,  H04L5/14 ,  H04Q7/00

    CPC classification number: H01Q9/16

    Abstract: A wireless communication unit provides (10) a first signal as received from a first portion (11) of a single antenna and provides (13) a second signal as received from a second portion of the antenna, which in a preferred embodiment can comprise a feedline (12). The two signals contain information that is cross-coupled with respect to one another as a function, at least in part, of the structure of the antenna. A digital processing platform (34) de-couples (17) these signals to permit recovery of the original payloads. In one embodiment similar approaches are used to facilitate cross-coupling of signals and transmission of such cross-coupled signals from different portions of a single antenna structure. In another embodiment, both transmission and reception are facilitated by a common platform.

    Abstract translation: 无线通信单元提供（10）从单个天线的第一部分（11）接收的第一信号，并且提供（13）从天线的第二部分接收的第二信号，其在优选实施例中可以包括 馈线（12）。 这两个信号包含至少部分由天线的结构相互交叉耦合的信息。 数字处理平台（34）解耦（17）这些信号以允许恢复原始有效载荷。 在一个实施例中，类似的方法用于促进信号的交叉耦合和来自单个天线结构的不同部分的这种交叉耦合信号的传输。 在另一个实施例中，传输和接收均由通用平台促成。

    Channel estimation using a minimized channel prediction interval
    44.
    发明专利
    Channel estimation using a minimized channel prediction interval 未知

    公开(公告)号：GB2440094A

    公开(公告)日：2008-01-16

    申请号：GB0722373

    申请日：2006-03-31

    Applicant: MOTOROLA INC

    Inventor： FRANK COLIN D ,  CORKE ROBERT J ,  JASPER STEVEN C ,  MAKHLOUF ISAM R

    IPC: H04L25/02 ,  H04L27/26

    Abstract: A receiver (300) configured for: a) receiving (410) a first OFDM symbol and generating a plurality of demodulated symbols (306) for the first OFDM symbol: b) generating (420) decoder output code symbols (326) corresponding to a subset of the plurality of demodulated symbols; c) determining (430) that a set of (he decoder output code symbols (326) make up a set of reference symbols corresponding to at least a portion of the subset of the plurality of demodulated symbols (306); d) generating (440) the set of reference symbols; e) generating (450) a set of channel estimates (362) based on the set of reference symbols and the at least a portion of the subset of the plurality of demodulated symbols, for use in decoding a current OFDM symbol; and f) repeating steps b- e until a channel estimate for each demodulated symbol corresponding to the first OFDM symbol has been generated.

    49.
    发明专利
    未知

    公开(公告)号：MX9206164A

    公开(公告)日：1993-04-01

    申请号：MX9206164

    申请日：1992-10-26

    Applicant: MOTOROLA INC

    Inventor： JASPER STEVEN C ,  BIRCHLER MARK A ,  SOLOMON JAMES D

    IPC: H04L1/02 ,  H04B1/707 ,  H04B3/10 ,  H04J1/00 ,  H04L27/26 ,  H04L27/34 ,  H04B1/00

    Abstract: A quad 16 QAM transmission and reception methodology wherein a time domain pilot reference is advantageously associated therewith. There may be one or more such pilot references for each packet of multiple 16 QAM pulses. Depending upon the embodiment, each 16 QAM pulse can include a time domain pilot reference, or an estimated pilot reference for that pulse can be determined either by reference to pilot references in other pulses sharing the same packet, or by reference to pilot references for other previously received 16 QAM pulses corresponding to that same pulse.

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