Decoding scheme using multiple hypotheses about transmitted messages
    1.
    发明授权
    Decoding scheme using multiple hypotheses about transmitted messages 有权
    使用关于发送的消息的多个假设的解码方案

    公开(公告)号:US08000411B2

    公开(公告)日:2011-08-16

    申请号:US11969857

    申请日:2008-01-04

    IPC分类号: H03K9/00 H04L27/00

    摘要: A method and apparatus for decoding encoded data bits of a wireless communication transmission are provided. A set of a-priori bit values corresponding to known bit values of the encoded data bits may be generated. Decoding paths that correspond to decoded data bits that are inconsistent with the a-priori bit values may be removed from the possible decoding paths to consider, and decoding the encoded data bits by selecting a decoding path from remaining decoding paths of the possible decoding paths that were not removed. Multiple hypotheses, each corresponding to a different set of a-prior bit values may be evaluated, with the decoded data for a hypothesis selected based on the evaluation output for further processing.

    摘要翻译: 提供了一种用于解码无线通信传输的编码数据位的方法和装置。 可以生成对应于编码数据位的已知位值的一组先验位值。 可以从可能的解码路径中去除对应于与先验比特值不一致的解码数据比特的解码路径,并且通过从可能的解码路径的剩余解码路径中选择解码路径来解码编码数据比特, 没有删除。 可以评估每个对应于先前比特值的不同集合的多个假设,其中基于用于进一步处理的评估输出选择的假设的解码数据。

    Decoding scheme using A-priori information about transmitted messages
    2.
    发明授权
    Decoding scheme using A-priori information about transmitted messages 失效
    使用关于发送的消息的先验信息的解码方案

    公开(公告)号:US08259866B2

    公开(公告)日:2012-09-04

    申请号:US11969724

    申请日:2008-01-04

    IPC分类号: H03D1/00 H04L27/06

    CPC分类号: H03M13/00 H03M13/3994

    摘要: A method and apparatus for decoding encoded data bits of a wireless communication transmission are provided. A set of a-priori bit values corresponding to known bit values of the encoded data bits may be generated. Decoding paths that correspond to decoded data bits that are inconsistent with the a-priori bit values may be removed from the possible decoding paths to consider, and decoding the encoded data bits by selecting a decoding path from remaining decoding paths of the possible decoding paths that were not removed.

    摘要翻译: 提供了一种用于解码无线通信传输的编码数据位的方法和装置。 可以生成对应于编码数据位的已知位值的一组先验位值。 可以从可能的解码路径中去除对应于与先验比特值不一致的解码数据比特的解码路径,并且通过从可能的解码路径的剩余解码路径中选择解码路径来解码编码数据比特, 没有删除。

    DECODING SCHEME USING A-PRIORI INFORMATION ABOUT TRANSMITTED MESSAGES
    3.
    发明申请
    DECODING SCHEME USING A-PRIORI INFORMATION ABOUT TRANSMITTED MESSAGES 失效
    使用关于传输信息的原始信息来解码方案

    公开(公告)号:US20090175388A1

    公开(公告)日:2009-07-09

    申请号:US11969724

    申请日:2008-01-04

    IPC分类号: H04L27/06

    CPC分类号: H03M13/00 H03M13/3994

    摘要: A method and apparatus for decoding encoded data bits of a wireless communication transmission are provided. A set of a-priori bit values corresponding to known bit values of the encoded data bits may be generated. Decoding paths that correspond to decoded data bits that are inconsistent with the a-priori bit values may be removed from the possible decoding paths to consider, and decoding the encoded data bits by selecting a decoding path from remaining decoding paths of the possible decoding paths that were not removed.

    摘要翻译: 提供了一种用于解码无线通信传输的编码数据位的方法和装置。 可以生成对应于编码数据位的已知位值的一组先验位值。 可以从可能的解码路径中去除对应于与先验比特值不一致的解码数据比特的解码路径,并且通过从可能的解码路径的剩余解码路径中选择解码路径来对编码数据比特进行解码, 没有删除。

    DECODING SCHEME USING MULTIPLE HYPOTHESES ABOUT TRANSMITTED MESSAGES
    4.
    发明申请
    DECODING SCHEME USING MULTIPLE HYPOTHESES ABOUT TRANSMITTED MESSAGES 有权
    使用关于传输信息的多个假设来解码方案

    公开(公告)号:US20090175387A1

    公开(公告)日:2009-07-09

    申请号:US11969857

    申请日:2008-01-04

    IPC分类号: H04L27/06

    摘要: A method and apparatus for decoding encoded data bits of a wireless communication transmission are provided. A set of a-priori bit values corresponding to known bit values of the encoded data bits may be generated. Decoding paths that correspond to decoded data bits that are inconsistent with the a-priori bit values may be removed from the possible decoding paths to consider, and decoding the encoded data bits by selecting a decoding path from remaining decoding paths of the possible decoding paths that were not removed. Multiple hypotheses, each corresponding to a different set of a-prior bit values may be evaluated, with the decoded data for a hypothesis selected based on the evaluation output for further processing.

    摘要翻译: 提供了一种用于解码无线通信传输的编码数据位的方法和装置。 可以生成对应于编码数据位的已知位值的一组先验位值。 可以从可能的解码路径中去除对应于与先验比特值不一致的解码数据比特的解码路径,并且通过从可能的解码路径的剩余解码路径中选择解码路径来解码编码数据比特, 没有删除。 可以评估每个对应于先前比特值的不同集合的多个假设,其中基于用于进一步处理的评估输出选择的假设的解码数据。

    Methods and systems for effective channel estimation in OFDM systems
    5.
    发明授权
    Methods and systems for effective channel estimation in OFDM systems 有权
    OFDM系统中有效信道估计的方法和系统

    公开(公告)号:US08731109B2

    公开(公告)日:2014-05-20

    申请号:US12123408

    申请日:2008-05-19

    IPC分类号: H04L25/02

    摘要: A method and apparatus for channel estimation in wireless communications are provided. After an initial channel estimation and an estimation of the effective channel length (ECL) are performed, a weighting based on the ECL may be applied in an effort to remove noise from the initial channel estimate and provide an estimated channel with increased accuracy. Different weightings may apply for different channel lengths. A threshold may be used during the ECL estimation, and the threshold may be predetermined or calculated in an effort to adapt to different channel environments.

    摘要翻译: 提供了一种用于无线通信中信道估计的方法和装置。 在执行初始信道估计和有效信道长度(ECL)的估计之后,可以应用基于ECL的加权来努力去除初始信道估计中的噪声,并提供具有增加的精度的估计信道。 不同的加权可能适用于不同的通道长度。 在ECL估计期间可以使用阈值,并且可以预先确定或计算阈值以努力适应不同的信道环境。

    METHODS AND SYSTEMS FOR EFFECTIVE CHANNEL ESTIMATION IN OFDM SYSTEMS
    7.
    发明申请
    METHODS AND SYSTEMS FOR EFFECTIVE CHANNEL ESTIMATION IN OFDM SYSTEMS 有权
    OFDM系统中有效信道估计的方法与系统

    公开(公告)号:US20090285317A1

    公开(公告)日:2009-11-19

    申请号:US12123408

    申请日:2008-05-19

    IPC分类号: H04L27/28

    摘要: A method and apparatus for channel estimation in wireless communications are provided. After an initial channel estimation and an estimation of the effective channel length (ECL) are performed, a weighting based on the ECL may be applied in an effort to remove noise from the initial channel estimate and provide an estimated channel with increased accuracy. Different weightings may apply for different channel lengths. A threshold may be used during the ECL estimation, and the threshold may be predetermined or calculated in an effort to adapt to different channel environments.

    摘要翻译: 提供了一种用于无线通信中信道估计的方法和装置。 在执行初始信道估计和有效信道长度(ECL)的估计之后,可以应用基于ECL的加权来努力去除初始信道估计中的噪声,并提供具有增加的精度的估计信道。 不同的加权可能适用于不同的通道长度。 在ECL估计期间可以使用阈值,并且可以预先确定或计算阈值以努力适应不同的信道环境。

    METHODS AND SYSTEMS FOR INITIAL FCH PROCESSING
    9.
    发明申请
    METHODS AND SYSTEMS FOR INITIAL FCH PROCESSING 失效
    初步加工过程的方法与系统

    公开(公告)号:US20120014428A1

    公开(公告)日:2012-01-19

    申请号:US13247589

    申请日:2011-09-28

    IPC分类号: H03H7/40

    摘要: Methods and apparatus for initially decoding a frame control header (FCH) in an orthogonal frequency-division multiplexing (OFDM) or orthogonal frequency division multiple access (OFDMA) system in an effort to accurately determine the downlink frame prefix (DLFP) such that the remainder of an OFDM/A frame may be properly decoded are provided. Used, for example, when boosting factors applied in the transmitter to various elements of the OFDM/A frame and/or available pilots for the FCH are unknown, such methods may utilize a preamble channel estimate, the FCH pilots, or a combination thereof.

    摘要翻译: 用于在正交频分复用(OFDM)或正交频分多址(OFDMA)系统中首先解码帧控制报头(FCH)的方法和装置,以努力精确地确定下行链路帧前缀(DLFP),使得其余部分 可以适当地解码OFDM / A帧。 例如,当将在发射机中应用的增强因子用于OFDM / A帧的各种元件和/或用于FCH的可用导频是未知的,这样的方法可以利用前导信道估计,FCH导频或其组合。

    METHODS AND SYSTEMS FOR INITIAL FCH PROCESSING
    10.
    发明申请
    METHODS AND SYSTEMS FOR INITIAL FCH PROCESSING 有权
    初步加工过程的方法与系统

    公开(公告)号:US20090285316A1

    公开(公告)日:2009-11-19

    申请号:US12123406

    申请日:2008-05-19

    IPC分类号: H04L27/28

    摘要: Methods and apparatus for initially decoding a frame control header (FCH) in an orthogonal frequency-division multiplexing (OFDM) or orthogonal frequency division multiple access (OFDMA) system in an effort to accurately determine the downlink frame prefix (DLFP) such that the remainder of an OFDM/A frame may be properly decoded are provided. Used, for example, when boosting factors applied in the transmitter to various elements of the OFDM/A frame and/or available pilots for the FCH are unknown, such methods may utilize a preamble channel estimate, the FCH pilots, or a combination thereof.

    摘要翻译: 用于在正交频分复用(OFDM)或正交频分多址(OFDMA)系统中首先解码帧控制报头(FCH)的方法和装置,以努力精确地确定下行链路帧前缀(DLFP),使得其余部分 可以适当地解码OFDM / A帧。 例如,当将在发射机中应用的增强因子用于OFDM / A帧的各种元件和/或用于FCH的可用导频是未知的,这样的方法可以利用前导信道估计,FCH导频或其组合。