公开(公告)号：US20160381581A1

公开(公告)日：2016-12-29

申请号：US14835437

申请日：2015-08-25

申请人： FREESCALE SEMICONDUCTOR, INC.

发明人： MIHAI-IONUT STANCIU ,  RAJA V. TAMMA ,  KHURRAM WAHEED

IPC分类号： H04W24/08 ,  H04L5/00

CPC分类号： H04L5/0048 ,  H04L27/0014 ,  H04L27/22 ,  H04L2027/003 ,  H04L2027/0034 ,  H04L2027/0048 ,  H04L2027/0095 ,  H04W84/12

摘要： Methods and system for carrier frequency offset (CFO) estimation are described. The method includes determining correlation values between a plurality of samples from a received signal and a plurality of reference signals corresponding to a plurality of CFO candidates. A set of correlation values which exceeds a threshold is determined and a corresponding CFO candidate for each correlation value in the set is selected. A CFO estimate based on an interpolation of selected CFO candidates is then calculated.

摘要翻译： 描述载波频率偏移（CFO）估计的方法和系统。 该方法包括从接收到的信号和对应于多个CFO候选的多个参考信号确定多个样本之间的相关值。 确定超过阈值的一组相关值，并且选择该集合中的每个相关值的对应的CFO候选。 然后计算基于所选CFO候选的内插的CFO估计。