公开(公告)号：GB2375272A

公开(公告)日：2002-11-06

申请号：GB0110537

申请日：2001-04-30

Applicant: LUCENT TECHNOLOGIES INC

Inventor： LUSCHI CARLO ,  STRAUCH PAUL EDWARD ,  KUZMINSKIY ALEXANDER

IPC: H04L27/00 ,  H04L27/233 ,  H04L7/02

Abstract: A frequency estimator is provided for use in a receiver of packetized data in eg. a TDMA system. The frequency estimator determines the signal frequency error ( f o ) with which a data packet has been received. It does this by relating data (gn) representative of some symbols to decisions (Sn) on those symbols. These symbols include not only training symbols (Nt) but also some information symbols (Nadd). The training sequence and input signal are fed into an equalizer and the frequency estimated according to "soft" and "hard" data and decisions based thereon.

公开(公告)号：GB2375272B

公开(公告)日：2003-11-19

申请号：GB0110537

申请日：2001-04-30

Applicant: LUCENT TECHNOLOGIES INC

Inventor： LUSCHI CARLO ,  STRAUCH PAUL EDWARD ,  KUZMINSKIY ALEXANDER

IPC: H04L27/00 ,  H04L27/233 ,  H04L7/02

Abstract: A frequency estimator is provided for use in a receiver of packetized data. The frequency estimator determines the signal frequency error ( ƒo) with which a data packet has been received. It does this by relating data (gn) representative of some symbols to decisions (Sn) on those symbols. These symbols include not only training symbols (Nt) but also some information symbols (Nadd).