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Patent Agency Ranking
公开(公告)号：US20160316445A1
公开(公告)日：2016-10-27
申请号：US15136394
申请日：2016-04-22
Applicant: Sequans Communications S.A.
Inventor： Moussa Abdi , Serdar Sezginer , Alain Kouioumdjian , Imran Latif , Aymane Hamahmy , Bertrand Muquet
CPC classification number: H04W56/0065 , H04L5/0048 , H04L27/2601 , H04L27/2665 , H04L27/2672 , H04L27/2675 , H04W56/0015
Abstract: A computer implemented method for providing OTDOA timing information comprising defining an FFT window pair for estimating a value of reference signal time difference “RSTD” for at least one base station and a reference cell, receiving a PRS from the at least one base station and the reference cell, executing an FFT per OFDM symbol of the PRS for each FFT window of the FFT window pair, obtaining a first FFT output vector per OFDM symbol of each FFT window, for each first output vector, descrambling tones corresponding to the known position of the PRS, wherein all other tones are set to zero, combining vectors based on respective first FFT output vectors, executing an iFFT to convert to the time domain; and calculating an estimated value of reference signal time difference “RSTD” for the at least one base station and the reference cell.
Abstract translation: 一种用于提供OTDOA定时信息的计算机实现方法，包括定义用于估计至少一个基站和参考小区的参考信号时间差“RSTD”的值的FFT窗口对，从所述至少一个基站接收PRS， 参考单元，对于FFT窗对的每个FFT窗执行PRS的OFDM符号的FFT，为每个第一输出向量获得每个FFT窗口的每OFDM符号的第一FFT输出向量，对应于已知位置的解扰音 PRS，其中所有其他音调被设置为零，基于相应的第一FFT输出向量组合向量，执行iFFT以转换到时域; 以及计算所述至少一个基站和所述参考小区的参考信号时间差“RSTD”的估计值。
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公开(公告)号：US20180183465A1
公开(公告)日：2018-06-28
申请号：US15847468
申请日：2017-12-19
Applicant: Sequans Communications S.A.
Inventor： Guillaume Vivier , Imran Latif , Serdar Sezginer
CPC classification number: H03M13/353 , H03M13/258 , H03M13/2957 , H03M13/3715 , H03M13/3972 , H03M13/6522 , H03M13/6569
Abstract: A method of configuring an error correction engine, the method comprising determining the frequency of operation of the error correction engine, determining the size of the code to be error corrected, determining the time permitted in which to error correct the code, and based on the determining steps, configuring the number of active error correction processes within the error correction engine to be used to error correct the code
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公开(公告)号：US20160381592A1
公开(公告)日：2016-12-29
申请号：US15191263
申请日：2016-06-23
Applicant: Sequans Communications S.A.
Inventor： Van Minh Nguyen , Moussa Abdi , Alain Kouioumdjian , Aymane Hamahmy , Imran Latif , Serdar Sezginer
CPC classification number: H04W24/10 , G01S1/22 , G01S5/10 , H04L5/0007 , H04L5/0048 , H04L27/2662 , H04L27/2672 , H04L27/2675 , H04L27/2686
Abstract: A computer implemented method of providing RSTD data comprising receiving an uncertainty window centered around an expected RSTD value, determining the PDP of each reference OFDM symbol within the uncertainty window, obtaining a main PDP by calculating a parameter indicative of signal quality for each determined PDP, the main PDP having the highest signal quality, obtaining a preceding PDP of the Main PDP, obtaining a succeeding PDP of the Main PDP, determining PDP metrics comprising, determining a channel metric for each of the main, preceding and succeeding PDPs, determining a channel main tap for each of the main, preceding and succeeding PDPs, determining a delay estimate for each of the main, preceding and succeeding PDPs, wherein if the main PDP is a combined PDP, performing coherence testing on the PDP metrics to detect any ambiguity in the delay estimate of the main PDP, and correcting any ambiguity.
Abstract translation: 一种提供RSTD数据的计算机实现方法，包括接收以期望RSTD值为中心的不确定性窗口，确定不确定性窗口内的每个参考OFDM符号的PDP，通过计算指示每个确定的PDP的信号质量的参数来获得主PDP， 主PDP具有最高信号质量，获得主PDP的先前PDP，获得主PDP的后续PDP，确定PDP度量，其包括：确定主要，先前和后续PDP中的每一个的信道度量，确定信道 主要PDP，先前和后续PDP中的每一个的主抽头，确定主要，先前和后续PDP中的每一个的延迟估计，其中如果主PDP是组合PDP，则对PDP度量进行相干性测试以检测任何歧义 主PDP的延迟估计，并纠正任何歧义。
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公开(公告)号：US10219238B2
公开(公告)日：2019-02-26
申请号：US15136394
申请日：2016-04-22
Applicant: Sequans Communications S.A.
Inventor： Moussa Abdi , Serdar Sezginer , Alain Kouioumdjian , Imran Latif , Aymane Hamahmy , Bertrand Muquet
Abstract: A computer implemented method for providing OTDOA timing information comprising defining an FFT window pair for estimating a value of reference signal time difference “RSTD” for at least one base station and a reference cell, receiving a PRS from the at least one base station and the reference cell, executing an FFT per OFDM symbol of the PRS for each FFT window of the FFT window pair, obtaining a first FFT output vector per OFDM symbol of each FFT window, for each first output vector, descrambling tones corresponding to the known position of the PRS, wherein all other tones are set to zero, combining vectors based on respective first FFT output vectors, executing an iFFT to convert to the time domain; and calculating an estimated value of reference signal time difference “RSTD” for the at least one base station and the reference cell.
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公开(公告)号：US10034191B2
公开(公告)日：2018-07-24
申请号：US15191263
申请日：2016-06-23
Applicant: Sequans Communications S.A.
Inventor： Van Minh Nguyen , Moussa Abdi , Alain Kouioumdjian , Aymane Hamahmy , Imran Latif , Serdar Sezginer
Abstract: A computer implemented method of providing RSTD data comprising receiving an uncertainty window centered around an expected RSTD value, determining the PDP of each reference OFDM symbol within the uncertainty window, obtaining a main PDP by calculating a parameter indicative of signal quality for each determined PDP, the main PDP having the highest signal quality, obtaining a preceding PDP of the Main PDP, obtaining a succeeding PDP of the Main PDP, determining PDP metrics comprising, determining a channel metric for each of the main, preceding and succeeding PDPs, determining a channel main tap for each of the main, preceding and succeeding PDPs, determining a delay estimate for each of the main, preceding and succeeding PDPs, wherein if the main PDP is a combined PDP, performing coherence testing on the PDP metrics to detect any ambiguity in the delay estimate of the main PDP, and correcting any ambiguity.
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