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公开(公告)号：US20100278227A1
公开(公告)日：2010-11-04
申请号：US12433200
申请日：2009-04-30
CPC分类号： H04L25/03292 , H04L2025/03426
摘要： Systems and methods of receiving data in a communication system are disclosed. The methods include equalizing a plurality of samples to suppress intersymbol interference and provide a first set of detected bits based on a first set of reference bits comprising a training sequence on a first iteration. The methods further include suppressing co-channel interference in the plurality of input samples and provide a set of suppressed samples based on a second set of reference bits comprising the first set of detected bits on a second iteration. The methods further include equalizing the set of suppressed samples to suppress intersymbol interference and provide a second set of detected bits based on the second set of reference bits on the second iteration.
摘要翻译： 公开了在通信系统中接收数据的系统和方法。 所述方法包括均衡多个采样以抑制符号间干扰，并且基于在第一次迭代中包括训练序列的第一组参考比特来提供第一组检测到的比特。 所述方法还包括抑制多个输入样本中的同信道干扰，并且在第二次迭代中基于包括第一组检测到的比特的第二组参考比特提供一组抑制样本。 所述方法还包括均衡所述抑制样本集合以抑制符号间干扰，并且基于所述第二迭代上的第二组参考比特提供第二组检测到的比特。
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2.发明申请公开(公告)号：US20100046595A1
公开(公告)日：2010-02-25
申请号：US12193925
申请日：2008-08-19
申请人： Divaydeep Sikri , Erdogan Dede , Farrokh Abrishamkar , Philip J.C. Children , Nico De Laurentiis
发明人： Divaydeep Sikri , Erdogan Dede , Farrokh Abrishamkar , Philip J.C. Children , Nico De Laurentiis
IPC分类号： H04B17/00
CPC分类号： H04W56/00 , H04L7/041 , H04L25/0228 , H04L25/0328
摘要： A method for estimating timing in a wireless communication comprises the steps of receiving a plurality of symbol bursts corresponding to a plurality of time slots and selecting a subset of symbols from a first symbol burst of the plurality of symbol bursts. The subset comprises a first midamble symbol. The method further comprises the steps of calculating, for each symbol in the subset, a corresponding midamble estimation error, and determining the lowest calculated midamble estimation error to determine a timing for the first symbol burst. The method further comprises the steps of processing the first symbol burst utilizing the timing determined for the first symbol burst, and processing a second symbol burst of the plurality of symbol bursts utilizing the timing determined for the first symbol burst.
摘要翻译： 一种用于估计无线通信定时的方法包括以下步骤：接收与多个时隙相对应的多个符号突发，并从所述多个符号突发的第一符号突发中选择符号子集。 子集包括第一中间码符号。 所述方法还包括以下步骤：针对所述子集中的每个符号计算相应的中间码估计误差，以及确定所计算出的最低中值码估计误差以确定所述第一符号突发的定时。 该方法还包括以下步骤：利用为第一符号突发确定的定时来处理第一符号突发，以及利用为第一符号突发确定的定时来处理多个符号突发的第二符号突发。
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公开(公告)号：US08675796B2
公开(公告)日：2014-03-18
申请号：US13215984
申请日：2011-08-23
摘要： A method for timing and frequency synchronization in a wireless system is provided. The method comprises the steps of receiving a burst of symbols, selecting a subset of the burst of symbols, iteratively adjusting the subset of the burst of symbols by a plurality of timing offsets and calculating, for each timing offset, a first performance metric corresponding to the adjusted subset. The method further comprises the steps of determining one of the plurality of timing offsets to be a preferred timing offset based upon the first performance metric thereof, iteratively rotating the subset of the burst of symbols by a plurality of frequency offsets and calculating, for each frequency offset, a second performance metric corresponding to the rotated subset, and determining one of the plurality of frequency offsets to be a preferred frequency offset based upon the second performance metric thereof.
摘要翻译： 提供了一种用于无线系统中的定时和频率同步的方法。 该方法包括以下步骤：接收符号脉冲串，选择符号脉冲串的子集，通过多个定时偏移迭代地调整符号脉冲串的子集，并且针对每个定时偏移量，计算对应于 调整后的子集。 该方法还包括以下步骤：基于其第一性能度量，将多个定时偏移中的一个定时偏移确定为优选的定时偏移，将符号突发的子集迭代地旋转多个频率偏移，并且针对每个频率 偏移量，对应于旋转的子集的第二性能量度，以及基于其第二性能度量，将所述多个频率偏移中的一个确定为优选频率偏移。
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公开(公告)号：US20100215128A1
公开(公告)日：2010-08-26
申请号：US12390337
申请日：2009-02-20
CPC分类号： H04L27/0012 , H04L1/20
摘要： An apparatus is provided for demodulating a block, the block including a plurality of bursts. The apparatus comprises a demodulator configured to demodulate the plurality of bursts and a modulation detector configured to detect a modulation scheme for a current burst in the plurality of bursts and to determine whether there is a high probability that the detected modulation scheme is correct. The modulation detector instructs the demodulator to demodulate each burst subsequent to the current burst in the plurality of bursts based on the detected modulation scheme when the modulation detector determines a high probability that the modulation scheme is correct.
摘要翻译： 提供了一种用于解调块的装置，该块包括多个突发。 该装置包括：解调器，被配置为解调多个突发;以及调制检测器，被配置为检测多个突发中的当前突发的调制方案，并且确定检测到的调制方案是否是正确的高概率。 当调制检测器确定调制方案是正确的高概率时，调制检测器指示解调器基于检测到的调制方案来解调多个突发中的当前突发之后的每个突发。
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公开(公告)号：US08804876B2
公开(公告)日：2014-08-12
申请号：US12390337
申请日：2009-02-20
IPC分类号： H03D3/22
CPC分类号： H04L27/0012 , H04L1/20
摘要： An apparatus is provided for demodulating a block, the block including a plurality of bursts. The apparatus comprises a demodulator configured to demodulate the plurality of bursts and a modulation detector configured to detect a modulation scheme for a current burst in the plurality of bursts and to determine whether there is a high probability that the detected modulation scheme is correct. The modulation detector instructs the demodulator to demodulate each burst subsequent to the current burst in the plurality of bursts based on the detected modulation scheme when the modulation detector determines a high probability that the modulation scheme is correct.
摘要翻译： 提供了一种用于解调块的装置，该块包括多个突发。 该装置包括：解调器，被配置为解调多个突发;以及调制检测器，被配置为检测多个突发中的当前突发的调制方案，并且确定检测到的调制方案是否是正确的高概率。 当调制检测器确定调制方案是正确的高概率时，调制检测器指示解调器基于检测到的调制方案来解调多个突发中的当前突发之后的每个突发。
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公开(公告)号：US20100046660A1
公开(公告)日：2010-02-25
申请号：US12464311
申请日：2009-05-12
摘要： A method for timing and frequency synchronization in a wireless system is provided. The method comprises the steps of receiving a burst of symbols, selecting a subset of the burst of symbols, iteratively adjusting the subset of the burst of symbols by a plurality of timing offsets and calculating, for each timing offset, a first performance metric corresponding to the adjusted subset. The method further comprises the steps of determining one of the plurality of timing offsets to be a preferred timing offset based upon the first performance metric thereof, iteratively rotating the subset of the burst of symbols by a plurality of frequency offsets and calculating, for each frequency offset, a second performance metric corresponding to the rotated subset, and determining one of the plurality of frequency offsets to be a preferred frequency offset based upon the second performance metric thereof.
摘要翻译： 提供了一种用于无线系统中的定时和频率同步的方法。 该方法包括以下步骤：接收符号脉冲串，选择符号脉冲串的子集，通过多个定时偏移迭代地调整符号脉冲串的子集，并且针对每个定时偏移量，计算对应于 调整后的子集。 该方法还包括以下步骤：基于其第一性能度量，将多个定时偏移中的一个定时偏移确定为优选的定时偏移，将符号突发的子集迭代地旋转多个频率偏移，并且针对每个频率 偏移量，对应于旋转的子集的第二性能量度，以及基于其第二性能度量，将所述多个频率偏移中的一个确定为优选频率偏移。
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公开(公告)号：US09160577B2
公开(公告)日：2015-10-13
申请号：US12433200
申请日：2009-04-30
CPC分类号： H04L25/03292 , H04L2025/03426
摘要： Systems and methods of receiving data in a communication system are disclosed. The methods include equalizing a plurality of samples to suppress intersymbol interference and provide a first set of detected bits based on a first set of reference bits comprising a training sequence on a first iteration. The methods further include suppressing co-channel interference in the plurality of input samples and provide a set of suppressed samples based on a second set of reference bits comprising the first set of detected bits on a second iteration. The methods further include equalizing the set of suppressed samples to suppress intersymbol interference and provide a second set of detected bits based on the second set of reference bits on the second iteration.
摘要翻译： 公开了在通信系统中接收数据的系统和方法。 所述方法包括均衡多个采样以抑制符号间干扰，并且基于在第一次迭代中包括训练序列的第一组参考比特来提供第一组检测到的比特。 所述方法还包括抑制多个输入样本中的同信道干扰，并且在第二次迭代中基于包括第一组检测到的比特的第二组参考比特提供一组抑制样本。 所述方法还包括均衡所述抑制样本集合以抑制符号间干扰，并且基于所述第二迭代上的第二组参考比特提供第二组检测到的比特。
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公开(公告)号：US08509293B2
公开(公告)日：2013-08-13
申请号：US12193925
申请日：2008-08-19
申请人： Divaydeep Sikri , Erdogan Dede , Farrokh Abrishamkar , Philip J. C. Children , Nico De Laurentiis
发明人： Divaydeep Sikri , Erdogan Dede , Farrokh Abrishamkar , Philip J. C. Children , Nico De Laurentiis
IPC分类号： H04B3/46
CPC分类号： H04W56/00 , H04L7/041 , H04L25/0228 , H04L25/0328
摘要： A method for estimating timing in a wireless communication comprises the steps of receiving a plurality of symbol bursts corresponding to a plurality of time slots and selecting a subset of symbols from a first symbol burst of the plurality of symbol bursts. The subset comprises a first midamble symbol. The method further comprises the steps of calculating, for each symbol in the subset, a corresponding midamble estimation error, and determining the lowest calculated midamble estimation error to determine a timing for the first symbol burst. The method further comprises the steps of processing the first symbol burst utilizing the timing determined for the first symbol burst, and processing a second symbol burst of the plurality of symbol bursts utilizing the timing determined for the first symbol burst.
摘要翻译： 一种用于估计无线通信定时的方法包括以下步骤：接收与多个时隙相对应的多个符号突发，并从所述多个符号突发的第一符号突发中选择符号子集。 子集包括第一中间码符号。 所述方法还包括以下步骤：针对所述子集中的每个符号计算相应的中间码估计误差，以及确定所计算出的最低中值码估计误差以确定所述第一符号突发的定时。 该方法还包括以下步骤：利用为第一符号突发确定的定时来处理第一符号突发，以及利用为第一符号突发确定的定时来处理多个符号突发的第二符号突发。
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公开(公告)号：US20110305303A1
公开(公告)日：2011-12-15
申请号：US13215984
申请日：2011-08-23
摘要： A method for timing and frequency synchronization in a wireless system is provided. The method comprises the steps of receiving a burst of symbols, selecting a subset of the burst of symbols, iteratively adjusting the subset of the burst of symbols by a plurality of timing offsets and calculating, for each timing offset, a first performance metric corresponding to the adjusted subset. The method further comprises the steps of determining one of the plurality of timing offsets to be a preferred timing offset based upon the first performance metric thereof, iteratively rotating the subset of the burst of symbols by a plurality of frequency offsets and calculating, for each frequency offset, a second performance metric corresponding to the rotated subset, and determining one of the plurality of frequency offsets to be a preferred frequency offset based upon the second performance metric thereof.
摘要翻译： 提供了一种用于无线系统中的定时和频率同步的方法。 该方法包括以下步骤：接收符号脉冲串，选择符号脉冲串的子集，通过多个定时偏移迭代地调整符号脉冲串的子集，并且针对每个定时偏移量，计算对应于 调整后的子集。 该方法还包括以下步骤：基于其第一性能度量，将多个定时偏移中的一个定时偏移确定为优选的定时偏移，将符号突发的子集迭代地旋转多个频率偏移，并且针对每个频率 偏移量，对应于旋转的子集的第二性能量度，以及基于其第二性能度量，将所述多个频率偏移中的一个确定为优选频率偏移。
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