Title :
A robust algorithm for step 2 in 3G FDD W-CDMA synchronization
Author :
Demir, Alpaslan ; Grieco, Donald
Author_Institution :
InterDigital Commun. Corp., Melville, NY, USA
fDate :
6/23/1905 12:00:00 AM
Abstract :
3G FDD W-CDMA initial synchronization follows a 3-step procedure to find a primary scrambling code while locating the frame boundary. In step 2, simplified coherent combining of secondary codes has been introduced for group and slot offset identification. The proposed method shows significant performance improvement against frequency offset. The simulation results show that there is approximately 3 dB performance improvement compared to conventional coherent integration for 6 kHz carrier offset while the other results follow almost the same values as those of conventional coherent integration
Keywords :
Hadamard codes; code division multiple access; frequency division multiplexing; synchronisation; 3G FDD W-CDMA synchronization; Hadamard matrix; coherent integration; frame boundary; frequency offset; physical synchronization channel; primary scrambling code; primary synchronization code; secondary synchronization codes; simplified coherent combining; Autocorrelation; Base stations; Correlators; Downlink; Error correction; Error correction codes; Frequency synchronization; Multiaccess communication; Robustness;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th
Conference_Location :
Atlantic City, NJ
Print_ISBN :
0-7803-7005-8
DOI :
10.1109/VTC.2001.957192
