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    Initial pilot frequency selection
    3.
    发明专利
    Initial pilot frequency selection 有权
    初步飞行员频率选择

    公开(公告)号：JP2012124912A

    公开(公告)日：2012-06-28

    申请号：JP2012004639

    申请日：2012-01-13

    Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

    Inventor： WANG MICHAEL MAO

    IPC: H04J11/00

    CPC classification number: H04L5/0048 ,  H04L5/0023 ,  H04L5/0058

    Abstract: PROBLEM TO BE SOLVED: To enable proper reception of signals by reducing the probability of collisions between pilot signals of different wireless networks.SOLUTION: An initial interlace determination component 206 determines a new starting interlace number based on an initial pilot staggering sequence 210 utilizing an offset value (option) based on network information 214. A staggering sequence regenerator 208 generates a re-initialized pilot staggering sequence 212 utilizing the new starting interlace number and the initial pilot staggering sequence.

    Abstract translation: 要解决的问题：通过降低不同无线网络的导频信号之间的冲突概率来实现信号的正确接收。 解决方案：初始隔行扫描确定部件206基于使用基于网络信息214的偏移值（选项）的初始导频交错序列210来确定新的起始交错号码。交错序列再生器208产生重新初始化的导频交错 序列212利用新的起始交错号和初始导频交错序列。 版权所有（C）2012，JPO＆INPIT

    Method and apparatus for initial acquisition gain control in communication system
    5.
    发明专利
    Method and apparatus for initial acquisition gain control in communication system 有权
    通信系统中初始获取增益控制的方法与装置

    公开(公告)号：JP2013128288A

    公开(公告)日：2013-06-27

    申请号：JP2012283389

    申请日：2012-12-26

    Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

    Inventor： WANG MICHAEL MAO

    IPC: H04B1/16 ,  H04J11/00

    CPC classification number: H04L27/2647 ,  H03G3/005 ,  H03G3/3078

    Abstract: PROBLEM TO BE SOLVED: To provide a method for initial acquisition gain control in a communication system, for repeated transmission at the maximal power value with a fixed time interval, where a receiver portion of a transceiver sets a gain of the receiver portion, e.g., when the transceiver is powered up or wakes up from a sleep mode.SOLUTION: The method includes measuring the power of a signal received by a transceiver a number of times over a prescribed time period, the signal including a number of symbols. A gain of the transceiver can be adjusted only to decrease when a currently measured power is greater than a previously measured power during the prescribed time period until the maximal power level is measured. By repeatedly reducing the gain to accommodate to the maximal power value, which is the same as the power level of an acquisition pilot symbol, overshoot and distortion by the transceiver is avoided during initial timing and frequency acquisition. A corresponding apparatus is also disclosed.

    Abstract translation: 要解决的问题：提供一种用于通信系统中的初始获取增益控制的方法，用于以固定的时间间隔以最大功率值重复发送，其中收发机的接收机部分设置接收机部分的增益 例如，当收发器上电或从睡眠模式唤醒时。 解决方案：该方法包括在规定的时间周期内多次测量由收发器接收的信号的功率，该信号包括多个符号。 只有在当前测量的功率大于先前测量的功率时才能调整收发器的增益，直到测量最大功率电平为止。 通过反复降低增益以适应与采集导频符号的功率电平相同的最大功率值，在初始定时和频率采集期间避免了收发器的过冲和失真。 还公开了相应的装置。 版权所有（C）2013，JPO＆INPIT

    Positioning of collection window of fft using time tracking information of ofdm symbol
    6.
    发明专利
    Positioning of collection window of fft using time tracking information of ofdm symbol 审中-公开
    使用OFDM符号的时间跟踪信息的FFT收集窗口的定位

    公开(公告)号：JP2010273364A

    公开(公告)日：2010-12-02

    申请号：JP2010156077

    申请日：2010-07-08

    Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

    Inventor： VRCELJ BOJAN ,  MANTRAVADI ASHOK ,  LING FUYUN ,  VIJAYAN RAJIV ,  WANG MICHAEL MAO

    IPC: H04J11/00

    CPC classification number: H04L27/2662 ,  H04L5/0007 ,  H04L5/0048 ,  H04L25/0216 ,  H04L25/022 ,  H04L25/0228 ,  H04L27/261 ,  H04L27/265 ,  H04L27/2665 ,  H04L27/2679

    Abstract: PROBLEM TO BE SOLVED: To provide a method of positioning a collection window of a Fourier transform function. SOLUTION: A first orthogonal frequency division multiplexing (OFDM) symbol and a second OFDM symbol are received. The first OFDM symbol includes a plurality of symbols. The first OFDM symbol is characterized by at least two of the following: a delay spread, a first arriving path (FAP), or a last arriving path (LAP). A channel location is estimated from a channel impulse response. A point relating to the channel location is selected. A beginning of the collection window is positioned for the second OFDM symbol at the selected point. Alternatively, the point is selected at a first location relating to the channel location by using a first algorithm if a delay spread is less than a predetermined length. The selected point is chosen at a second location relating to the channel location by using a second algorithm if the delay spread is greater than the predetermined length. COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题：提供一种定位傅立叶变换函数的收集窗口的方法。 解决方案：接收第一正交频分复用（OFDM）符号和第二OFDM符号。 第一OFDM符号包括多个符号。 第一OFDM符号的特征在于以下至少两个：延迟扩展，第一到达路径（FAP）或最后到达路径（LAP）。 从信道脉冲响应估计信道位置。 选择与频道位置相关的一点。 收集窗口的开始位于所选择的第二个OFDM符号。 或者，如果延迟扩展小于预定长度，则通过使用第一算法在与频道位置有关的第一位置处选择该点。 如果延迟扩展大于预定长度，则通过使用第二算法在与频道位置相关的第二位置处选择所选择的点。 版权所有（C）2011，JPO＆INPIT

    Preamble structure and acquisition for wireless communication system
    7.
    发明专利
    Preamble structure and acquisition for wireless communication system 有权
    无线通信系统的前瞻性结构和获取

    公开(公告)号：JP2013157999A

    公开(公告)日：2013-08-15

    申请号：JP2013044611

    申请日：2013-03-06

    Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

    Inventor： WANG MICHAEL MAO

    IPC: H04J11/00 ,  H04J3/06 ,  H04W36/30 ,  H04W36/36

    CPC classification number: H04L27/2613 ,  H04L5/0023 ,  H04L5/0048 ,  H04W36/30 ,  H04W36/36

    Abstract: PROBLEM TO BE SOLVED: To provide techniques for sending sector/system information in multiple TDM pilots using a hierarchical pilot structure.SOLUTION: A base station sends multiple sets of bits for the sector/system information in the multiple TDM pilots. The base station generates a first TDM pilot on the basis of a first set of bits, generates a second TDM pilot on the basis of a second set of bits that includes the first set, generates a third TDM pilot on the basis of all bits for the information, and sends the TDM pilots. A terminal performs detection to obtain a first detected value for the first TDM pilot, performs detection on the basis of the first detected value to obtain a second detected value for the second TDM pilot, and performs detection on the basis of the first and second detected values to obtain a third detected value for the third TDM pilot.

    Abstract translation: 要解决的问题：提供使用分层导频结构在多个TDM导频中发送扇区/系统信息的技术。解决方案：基站在多个TDM导频中为扇区/系统信息发送多组比特。 基站基于第一组比特生成第一TDM导频，基于包括第一组的第二组比特生成第二TDM导频，基于所有比特生成第三TDM导频 信息，并发送TDM导频。 终端执行检测以获得用于第一TDM导频的第一检测值，基于第一检测值执行检测，以获得第二TDM导频的第二检测值，并且基于第一和第二检测到的第二检测值进行检测 以获得第三TDM导频的第三检测值。

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