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Reconfigurable low power cell search engine for UMTS-FDD mobile terminals

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6 Author(s)
Darbel, N. ; STMicroelectron., San Diego, CA, USA ; Rasse, Y. ; Bastidas-Garcia, O. ; Faux, G.
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This paper addresses initial acquisition for the UMTS-FDD W-CDMA standard. It presents an innovative cell searcher architecture optimized for acquisition speed and for low power consumption. The proposed architecture utilizes a memory-based digital matched filter with permuted processing order. The same filtering hardware can be reconfigured to process all the steps of the UMTS-FDD initial cell search. It can also perform other functions such as initial delay profiling, neighboring cell search and idle-mode timing alignment, which are typically carried out by the Rake receiver. These additional capabilities allow for further system-level power reduction since they avoid activating the Rake.

Published in:

Signal Processing Systems, 2002. (SIPS '02). IEEE Workshop on

Date of Conference:

16-18 Oct. 2002