Cell search algorithms and optimization in W-CDMA

Author

Wang, Yi-Pin Eric ; Ottosson, Tony

Author_Institution

Ericsson Inc., Research Triangle Park, NC, USA

Volume

1

fYear

2000

fDate

2000

Firstpage

81

Abstract

In this paper, algorithms for cell search in W-CDMA are presented. Two scenarios of cell search are considered: (i) the initial cell search when a mobile station is switched on; and (ii) the target cell search in idle and active modes. For the initial cell search, large frequency errors (e.g. 20 kHz) are considered. The performance of cell search in these scenarios are presented. It is found that by optimizing key system parameters such as the primary synchronization channel, synchronization channel, and common pilot channel loading factors, the average cell search time can be significantly reduced

Keywords

broadband networks; cellular radio; code division multiple access; multiuser channels; optimisation; radio networks; search problems; synchronisation; W-CDMA; active mode; average cell search time reduction; cell search algorithms; cellular radio; common pilot channel loading factors; idle mode; initial cell search; large frequency errors; mobile station; performance; primary synchronization channel; scrambling code identification; synchronization channel; system parameters optimization; target cell search; Code standards; Consumer electronics; Degradation; Downlink; Frequency synchronization; Joining processes; Mass production; Multiaccess communication; Oscillators; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference Proceedings, 2000. VTC 2000-Spring Tokyo. 2000 IEEE 51st

Conference_Location

Tokyo

ISSN

1090-3038

Print_ISBN

0-7803-5718-3

Type

conf

DOI

10.1109/VETECS.2000.851422

Filename

851422