Networked wireless communications device programmed to identify and eliminate probable multipath errors so as to enhance accuracy in correcting sleep clock for thermally induced errors
    1.
    发明专利
    Networked wireless communications device programmed to identify and eliminate probable multipath errors so as to enhance accuracy in correcting sleep clock for thermally induced errors 有权
    网络无线通信设备编程识别和消除可疑的多路径错误,以增强校正休眠时间的精度以获得热导致的错误

    公开(公告)号:JP2010213315A

    公开(公告)日:2010-09-24

    申请号:JP2010096032

    申请日:2010-04-19

    CPC classification number: H04W52/0287 Y02D70/00

    Abstract: PROBLEM TO BE SOLVED: To correct a sleep clock operating in a wireless environment.
    SOLUTION: A time reference output by a wireless communication network is investigated and compared with output of a sleep clock and a current error in a sleep clock frequency is computed. If the current error does not exceed a predetermined threshold, the current error is utilized as a corrected error. If the current error exceeds the predetermined threshold, the restricted current error is utilized as a corrected error. Input including the corrected error is utilized to estimate the frequency of the sleep clock. When the next wake-up time is scheduled, the estimate in the frequency of the sleep clock is utilized.
    COPYRIGHT: (C)2010,JPO&INPIT

    Abstract translation: 要解决的问题:纠正在无线环境中操作的睡眠时钟。 解决方案:调查由无线通信网络输出的时间参考,并将其与休眠时钟的输出进行比较,并计算睡眠时钟频率中的当前误差。 如果当前误差不超过预定阈值,则将当前误差用作校正误差。 如果当前误差超过预定阈值,则将受限电流误差用作校正误差。 使用包括校正误差的输入来估计睡眠时钟的频率。 当调度下一个唤醒时间时,利用睡眠时钟频率的估计。 版权所有(C)2010,JPO&INPIT

    2.
    发明专利
    未知

    公开(公告)号:BRPI0509584A

    公开(公告)日:2007-10-09

    申请号:BRPI0509584

    申请日:2005-03-29

    Applicant: QUALCOMM INC

    Abstract: A method for correcting operation of the sleep oscillator ( 116 ) of a wireless communications device ( 100 ). Sleep oscillator frequency is estimated ( 412 ) so as to compensate for estimated temperature induced errors. In estimating temperature induced errors, errors ( 504 ) in sleep oscillator frequency are treated as being temperature induced errors ( 522 ), but probable multipath errors are bounded ( 410, 520 ) to predetermined sleep clock error maxima ( 602 ) corresponding to sleep duration over which the error occurred.

    4.
    发明专利
    未知

    公开(公告)号:BRPI0416150A

    公开(公告)日:2007-01-09

    申请号:BRPI0416150

    申请日:2004-11-01

    Applicant: QUALCOMM INC

    Abstract: Techniques for scanning other frequency channels for candidate base stations are described. In one scheme, the scanning of other frequency channels is performed based on the received signal quality (e.g., pilot Ec/Io) for an active base station that a wireless device is monitoring for user-specific and overhead messages. The scanning is bypassed if the active pilot Ec/Io exceeds a high threshold and performed if the active pilot Ec/Io is between the high threshold and a low threshold. In another scheme, the scanning of other frequency channels is performed at a rate that is a function of the active pilot Ec/Io. In yet another scheme, the scanning of other frequency channels is performed based on the active pilot Ec/Io and further using an adaptive timer. The timer is set to an initial value and thereafter adjusted by variable amounts determined by active pilot Ec/Io measurements.

    7.
    发明专利
    未知

    公开(公告)号:BRPI0509569A

    公开(公告)日:2007-09-25

    申请号:BRPI0509569

    申请日:2005-04-04

    Applicant: QUALCOMM INC

    Abstract: Methods and apparatus for searching a list of pilot signals. A method is provided for searching a list of pilot signals in a communication network. The method includes defining a prio list that indicates an order in which the list of pilot signals will be searched, obtaining a search duration, and determining an indicator that identifies a portion of the prio list that can be searched within the search duration. The method also includes performing a search of the portion of the prio list, and updating the list of pilot signals based on the results of the search.

    METHODS AND APPARATUS FOR SEARCHING A LIST OF PILOT SIGNALS
    10.
    发明申请
    METHODS AND APPARATUS FOR SEARCHING A LIST OF PILOT SIGNALS 审中-公开
    搜索引航信号表的方法和设备

    公开(公告)号:WO2005099119A9

    公开(公告)日:2005-12-15

    申请号:PCT/US2005011238

    申请日:2005-04-04

    Abstract: Methods and apparatus for searching a list of pilot signals. A method is provided for searching a list of pilot signals in a communication network. The method includes defining a prio list that indicates an order in which the list of pilot signals will be searched, obtaining a search duration, and determining an indicator that identifies a portion of the prio list that can be searched within the search duration. The method also includes performing a search of the portion of the prio list, and updating the list of pilot signals based on the results of the search.

    Abstract translation: 用于搜索导频信号列表的方法和装置。 提供了一种用于搜索通信网络中的导频信号的列表的方法。 该方法包括:定义一个列表,其指示将搜索导频信号的列表的顺序,获得搜索持续时间,以及确定标识在搜索持续时间内可被搜索的一部分列表的指示符。 该方法还包括执行对该列表的部分的搜索,以及基于搜索的结果来更新导频信号的列表。

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