专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20160316445A1 OTDOA In LTE Networks 审中-公开
标题翻译： OTDOA在LTE网络中
公开(公告)号：US20160316445A1
公开(公告)日：2016-10-27
申请号：US15136394
申请日：2016-04-22
申请人： Sequans Communications S.A.
发明人： Moussa Abdi , Serdar Sezginer , Alain Kouioumdjian , Imran Latif , Aymane Hamahmy , Bertrand Muquet
IPC分类号： H04W56/00 , H04L27/26 , H04L5/00
CPC分类号： H04W56/0065 , H04L5/0048 , H04L27/2601 , H04L27/2665 , H04L27/2672 , H04L27/2675 , H04W56/0015
摘要： 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.
摘要翻译：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。

2. 发明申请

US20160381592A1 AMBIGUITY RESOLUTION IN POSITIONING MEASUREMENTS 审中-公开
标题翻译：定位测量中的优势分辨率
公开(公告)号：US20160381592A1
公开(公告)日：2016-12-29
申请号：US15191263
申请日：2016-06-23
申请人： Sequans Communications S.A.
发明人： Van Minh Nguyen , Moussa Abdi , Alain Kouioumdjian , Aymane Hamahmy , Imran Latif , Serdar Sezginer
IPC分类号： H04W24/10 , H04L5/00
CPC分类号： H04W24/10 , G01S1/22 , G01S5/10 , H04L5/0007 , H04L5/0048 , H04L27/2662 , H04L27/2672 , H04L27/2675 , H04L27/2686
摘要： 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.
摘要翻译：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。

3. 发明授权

US10219238B2 OTDOA in LTE networks 有权
公开(公告)号：US10219238B2
公开(公告)日：2019-02-26
申请号：US15136394
申请日：2016-04-22
申请人： Sequans Communications S.A.
发明人： Moussa Abdi , Serdar Sezginer , Alain Kouioumdjian , Imran Latif , Aymane Hamahmy , Bertrand Muquet
IPC分类号： H04L27/26 , H04W56/00 , H04W24/10 , H04L5/00
摘要： 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.

4. 发明授权

US10034191B2 Ambiguity resolution in positioning measurements 有权
公开(公告)号：US10034191B2
公开(公告)日：2018-07-24
申请号：US15191263
申请日：2016-06-23
申请人： Sequans Communications S.A.
发明人： Van Minh Nguyen , Moussa Abdi , Alain Kouioumdjian , Aymane Hamahmy , Imran Latif , Serdar Sezginer
IPC分类号： H04W24/10 , G01S1/22 , G01S5/10 , H04L27/26 , H04L5/00
摘要： 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.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式