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

IPC: H04W24/10 ,  G01S1/22 ,  G01S5/10 ,  H04L27/26 ,  H04L5/00

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.

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

IPC: H04W24/10 ,  H04L5/00

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。