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公开(公告)号：US09912511B2
公开(公告)日：2018-03-06
申请号：US15063030
申请日：2016-03-07
发明人： Shaohua Zhao , Wuxue Ni , Li Li
CPC分类号： H04L27/2663 , H04L5/0048 , H04L27/12 , H04L27/18 , H04L27/2671 , H04L27/2675 , H04L27/2692 , H04L2025/03394 , H04L2027/0026
摘要： Systems and methods which provide training sequence or preamble-based synchronization with respect to non-coherent modulated signals and/or differentially coherent modulated signals are described. Embodiments provide for time synchronization using a technique for mitigating the effect of carrier frequency offset (CFO) with respect to the received signal. Embodiments of the present invention provide for frequency synchronization using a technique for estimating CFO using a constant bias induced with respect to the received signal by CFO. Additionally or alternatively, embodiments of the present invention provide for frequency synchronization using a technique for estimating CFO using phase rotation caused by CFO. The time synchronization and frequency synchronization of embodiments may be performed independently, without requiring the results of one synchronization operation for performing the other synchronization operation.
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公开(公告)号：US09912512B2
公开(公告)日：2018-03-06
申请号：US15063085
申请日：2016-03-07
发明人： Shaohua Zhao , Wuxue Ni , Biqiang Luo , Li Li
CPC分类号： H04L27/2663 , H04L7/04 , H04L27/06 , H04L27/14 , H04L27/2331 , H04L27/2671 , H04L27/2675
摘要： Systems and methods which provide training sequence or preamble-based synchronization with respect to non-coherent modulated signals and/or differentially coherent modulated signals are described. Embodiments provide for time synchronization using a technique for mitigating the effect of carrier frequency offset (CFO) with respect to the received signal. Embodiments of the present invention provide for frequency synchronization using a technique for estimating CFO using a constant bias induced with respect to the received signal by CFO. Additionally or alternatively, embodiments of the present invention provide for frequency synchronization using a technique for estimating CFO using phase rotation caused by CFO. The time synchronization and frequency synchronization of embodiments may be performed independently, without requiring the results of one synchronization operation for performing the other synchronization operation.
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公开(公告)号：US20170257247A1
公开(公告)日：2017-09-07
申请号：US15063030
申请日：2016-03-07
发明人： Shaohua Zhao , Wuxue Ni , Li Li
IPC分类号： H04L27/26
CPC分类号： H04L27/2663 , H04L5/0048 , H04L27/12 , H04L27/18 , H04L27/2671 , H04L27/2675 , H04L27/2692 , H04L2025/03394 , H04L2027/0026
摘要： Systems and methods which provide training sequence or preamble-based synchronization with respect to non-coherent modulated signals and/or differentially coherent modulated signals are described. Embodiments provide for time synchronization using a technique for mitigating the effect of carrier frequency offset (CFO) with respect to the received signal. Embodiments of the present invention provide for frequency synchronization using a technique for estimating CFO using a constant bias induced with respect to the received signal by CFO. Additionally or alternatively, embodiments of the present invention provide for frequency synchronization using a technique for estimating CFO using phase rotation caused by CFO. The time synchronization and frequency synchronization of embodiments may be performed independently, without requiring the results of one synchronization operation for performing the other synchronization operation.
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公开(公告)号：US20170257248A1
公开(公告)日：2017-09-07
申请号：US15063085
申请日：2016-03-07
发明人： Shaohua Zhao , Wuxue Ni , Biqiang Luo , Li Li
IPC分类号： H04L27/26
CPC分类号： H04L27/2663 , H04L7/04 , H04L27/06 , H04L27/14 , H04L27/2331 , H04L27/2671 , H04L27/2675
摘要： Systems and methods which provide training sequence or preamble-based synchronization with respect to non-coherent modulated signals and/or differentially coherent modulated signals are described. Embodiments provide for time synchronization using a technique for mitigating the effect of carrier frequency offset (CFO) with respect to the received signal. Embodiments of the present invention provide for frequency synchronization using a technique for estimating CFO using a constant bias induced with respect to the received signal by CFO. Additionally or alternatively, embodiments of the present invention provide for frequency synchronization using a technique for estimating CFO using phase rotation caused by CFO. The time synchronization and frequency synchronization of embodiments may be performed independently, without requiring the results of one synchronization operation for performing the other synchronization operation.
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