Closed loop power normalized timing recovery for 8 VSB modulated signals
    5.
    发明授权
    Closed loop power normalized timing recovery for 8 VSB modulated signals 有权
    8路VSB调制信号的闭环功率归一化定时恢复

    公开(公告)号:US08189724B1

    公开(公告)日:2012-05-29

    申请号:US11258700

    申请日:2005-10-26

    IPC分类号: H04L7/00

    摘要: A timing recovery loop includes a sampler, a narrow band filter, an RMS normalizer, a timing error detector, and a sample controller. The sampler samples a received signal. The narrow band filter filters the sampled received signal so as to pass an upper band edge of the received signal and not a lower band edge of the received signal. The RMS normalizer sets an average power level of an output of the filter to a substantially constant value. The timing error detector detects a timing error with respect to an output of the RMS normalizer. The sample controller controls the sampler in response to the detected timing error.

    摘要翻译: 定时恢复循环包括采样器,窄带滤波器,RMS归一化器,定时误差检测器和样本控制器。 采样器对接收到的信号进行采样。 窄带滤波器对采样的接收信号进行滤波,以便通过接收信号的较高频带边沿,而不是接收信号的较低频带边沿。 RMS均衡器将滤波器的输出的平均功率电平设置为基本上恒定的值。 定时误差检测器检测相对于RMS归一化器的输出的定时误差。 样品控制器响应于检测到的定时误差控制采样器。

    CLOSED LOOP POWER NORMALIZED TIMING RECOVERY FOR 8 VSB MODULATED SIGNALS
    6.
    发明申请
    CLOSED LOOP POWER NORMALIZED TIMING RECOVERY FOR 8 VSB MODULATED SIGNALS 有权
    关闭8V VSB调制信号的闭环正常定时恢复

    公开(公告)号:US20110044381A1

    公开(公告)日:2011-02-24

    申请号:US12916977

    申请日:2010-11-01

    IPC分类号: H04L27/08 H04B17/00

    摘要: A timing recovery loop includes a sampler, a narrow band filter, an RMS normalizer, a timing error detector, and a sample controller. The sampler samples a received signal. The narrow band filter filters the sampled received signal so as to pass an upper band edge of the received signal and not a lower band edge of the received signal. The RMS normalizer sets an average power level of an output of the filter to a substantially constant value. The timing error detector detects a timing error with respect to an output of the RMS normalizer. The sample controller controls the sampler in response to the detected timing error.

    摘要翻译: 定时恢复循环包括采样器,窄带滤波器,RMS归一化器,定时误差检测器和样本控制器。 采样器对接收到的信号进行采样。 窄带滤波器对采样的接收信号进行滤波,以便通过接收信号的较高频带边沿,而不是接收信号的较低频带边沿。 RMS均衡器将滤波器的输出的平均功率电平设置为基本上恒定的值。 定时误差检测器检测相对于RMS归一化器的输出的定时误差。 样品控制器响应于检测到的定时误差控制采样器。

    Closed loop power normalized timing recovery for 8 VSB modulated signals
    7.
    发明授权
    Closed loop power normalized timing recovery for 8 VSB modulated signals 有权
    8路VSB调制信号的闭环功率归一化定时恢复

    公开(公告)号:US08315345B2

    公开(公告)日:2012-11-20

    申请号:US12916977

    申请日:2010-11-01

    IPC分类号: H04L7/00

    摘要: A timing recovery loop includes a sampler, a narrow band filter, an RMS normalize, a timing error detector, and a sample controller. The sampler samples a received signal. The narrow band filter filters the sampled received signal so as to pass an upper band edge of the received signal and not a lower band edge of the received signal. The RMS normalize sets an average power level of an output of the filter to a substantially constant value. The timing error detector detects a timing error with respect to an output of the RMS normalize. The sample controller controls the sampler in response to the detected timing error.

    摘要翻译: 定时恢复回路包括采样器,窄带滤波器,RMS归一化,定时误差检测器和采样控制器。 采样器对接收到的信号进行采样。 窄带滤波器对采样的接收信号进行滤波,以便通过接收信号的较高频带边沿,而不是接收信号的较低频带边沿。 RMS归一化将滤波器的输出的平均功率电平设置为基本上恒定的值。 定时误差检测器检测相对于RMS归一化的输出的定时误差。 样品控制器响应于检测到的定时误差控制采样器。

    Employing cell-specific and user entity-specific reference symbols in an orthogonal frequency-division multiple access
    8.
    发明授权
    Employing cell-specific and user entity-specific reference symbols in an orthogonal frequency-division multiple access 有权
    在正交频分多址中采用小区特定和用户实体特定的参考符号

    公开(公告)号:US08767843B2

    公开(公告)日:2014-07-01

    申请号:US12267876

    申请日:2008-11-10

    IPC分类号: H04L27/28

    摘要: A method, a network base station, and a user communication device for transmitting data on an orthogonal frequency-division multiple access system are disclosed. A network base station may have a common antenna set to transmit on a subcarrier via a first effective channel able to be constructed based on at least one common reference symbol. The network base station may have a dedicated antenna set to transmit on a subcarrier via a second effective channel able to be estimated based on at least one dedicated reference symbol. The user equipment may demodulate a data transmission using the at least one common reference symbol and the at least one dedicated reference symbol.

    摘要翻译: 公开了一种在正交频分多址系统上发送数据的方法,网络基站和用户通信装置。 网络基站可以具有通过能够基于至少一个公共参考符号构造的第一有效信道在子载波上发送的公共天线。 网络基站可以具有专用天线,用于经由能够基于至少一个专用参考符号被估计的第二有效信道在子载波上进行发送。 用户设备可以使用至少一个公共参考符号和至少一个专用参考符号解调数据传输。

    Method of signaling particular types of resource elements in a wireless communication system
    9.
    发明授权
    Method of signaling particular types of resource elements in a wireless communication system 有权
    在无线通信系统中发送特定类型的资源元素的方法

    公开(公告)号:US08208434B2

    公开(公告)日:2012-06-26

    申请号:US12431305

    申请日:2009-04-28

    IPC分类号: H04W4/00

    摘要: A method of signaling particular types of resource elements in a wireless communication system is disclosed. The method can include, at a wireless terminal, receiving (610) a message providing information of a set of allocated resource elements carrying data intended for the wireless terminal. The method can include receiving (620) an indication corresponding to a resource element of a particular type within the set of allocated resource elements. The method can include decoding (630) resource elements that carry data intended for the wireless terminal based on the message providing information and based on the indication.

    摘要翻译: 公开了一种在无线通信系统中发送特定类型的资源元素的方法。 该方法可以包括在无线终端处接收(610)提供携带针对无线终端的数据的分配的资源元素的集合的信息的消息。 该方法可以包括:在所分配的资源元素集合内接收(620)对应于特定类型的资源元素的指示。 该方法可以包括基于消息提供信息并且基于该指示来解码(630)携带针对无线终端的数据的资源元素。

    Method and System for Collecting User Update Requests Regarding Geographic Data to Support Automated Analysis, Processing and Geographic Data Updates
    10.
    发明申请
    Method and System for Collecting User Update Requests Regarding Geographic Data to Support Automated Analysis, Processing and Geographic Data Updates 审中-公开
    收集关于地理数据的用户更新请求以支持自动分析,处理和地理数据更新的方法和系统

    公开(公告)号:US20080027937A1

    公开(公告)日:2008-01-31

    申请号:US11831816

    申请日:2007-07-31

    IPC分类号: G06F17/30 G06F15/16

    CPC分类号: G01C21/32 G06F16/29

    摘要: A system and method provide functionality for collecting user update reports of geographic inconsistencies between geographic data and the real world to enable automated processing of updates to the geographic data. A user's input is collected and describes an anomaly, which is a geographic inconsistency between geographic data and the real world. The user's input is stored as language neutral structured data that enables automated processing of updates to the geographic data. Automatic processes that process the structured data include an email agent, an incident agent, a geographic augmentation agent, a case generation agent, a clustering agent, an automatic validation agent, and a monitoring service. Automatic and manual processes combined together handle processing of anomalies, as well as other related processing, and ultimately handle processing of updates to the geographic data to resolve the anomalies reported by the users.

    摘要翻译: 系统和方法提供用于收集地理数据和现实世界之间的地理不一致的用户更新报告的功能,以实现对地理数据的更新的自动处理。 收集用户的输入并描述异常,这是地理数据与现实世界之间的地理不一致。 用户的输入存储为语言中立的结构化数据,可以对地理数据的更新进行自动处理。 处理结构化数据的自动过程包括电子邮件代理,事件代理,地理增强代理,案例生成代理,集群代理,自动验证代理和监控服务。 自动和手动过程组合在一起处理异常处理以及其他相关处理,并最终处理地理数据更新的处理,以解决用户报告的异常情况。