EP 1958409 A1 20080820 - APPARATUS FOR ESTIMATING TIME AND FREQUENCY OFFSET USING ANTENNA DIVERSITY IN OFDM COMMUNICATION SYSTEM AND METHOD THEREOF
Title (en)
APPARATUS FOR ESTIMATING TIME AND FREQUENCY OFFSET USING ANTENNA DIVERSITY IN OFDM COMMUNICATION SYSTEM AND METHOD THEREOF
Title (de)
VORRICHTUNG ZUR SCHÄTZUNG DES ZEIT- UND FREQUENZOFFSETS UNTER VERWENDUNG VON ANTENNENDIVERSITÄT IN EINEM OFDM-KOMMUNIKATIONSSYSTEM UND VERFAHREN DAFÜR
Title (fr)
APPAREIL PERMETTANT D'ESTIMER LE DECALAGE TEMPOREL ET LE DECALAGE DE FREQUENCE AU MOYEN D'ANTENNES A RECEPTION SIMULTANEE DANS UN SYSTEME DE COMMUNICATION OFDM ET PROCEDE ASSOCIE
Publication
Application
Priority
- KR 2006005377 W 20061211
- KR 20050121133 A 20051209
Abstract (en)
[origin: WO2007067018A1] Provided are an apparatus for estimating a time offset and a frequency offset and a method thereof . The method includes the steps of : a) giving weights to the signals received through the antennas and generating an input signal; b) delaying the input signal by a predetermined index and adding a square value of the delayed signal and a square value of the input signal; c) summating a predetermined number of the output value of the step b) and multiplying the summed value and a predetermined value; d) adding the input signal and a conjugated delayed signal; e) summating a predetermined number of the output value of the step d); f ) detecting the maximum value of the time offset; and g) calculating a radian degree for the absolute value of the output value acquired in the step e) and calculating a frequency offset based on the detected time offset.
IPC 8 full level
H04L 27/26 (2006.01)
CPC (source: EP KR)
H04B 7/0842 (2013.01 - EP); H04L 1/02 (2013.01 - KR); H04L 27/26 (2013.01 - KR); H04L 27/2657 (2013.01 - EP); H04L 27/2662 (2013.01 - EP); H04L 27/2676 (2013.01 - EP); H04B 7/0857 (2013.01 - EP); H04B 7/086 (2013.01 - EP)
Citation (search report)
See references of WO 2007067018A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2007067018 A1 20070614; EP 1958409 A1 20080820; KR 100770008 B1 20071025; KR 20070060928 A 20070613
DOCDB simple family (application)
KR 2006005377 W 20061211; EP 06824083 A 20061211; KR 20050121133 A 20051209