A flexible RAKE receiver architecture for WCDMA mobile terminals

Author

Harju, Lasse ; Kuulusa, Mika ; Nurmi, Jari

Author_Institution

Digital & Comput. Syst. Lab., Tampere Univ. of Technol., Finland

fYear

2001

fDate

2001

Firstpage

9

Lastpage

12

Abstract

This paper presents a novel RAKE receiver architecture for WCDMA FDD downlink reception in mobile terminals. In contrast to the conventional RAKE finger approach, the proposed FlexRake architecture performs signal reception with a single correlator engine and a buffer which stores the entire delay spread of the baseband I/Q samples. This allows each of the tracked multipaths to be despread sequentially with codes that are exactly in the same phase. The main benefits of the proposed receiver architecture are flexible multipath allocation, symbol-synchronous operation, and straightforward receiver control

Keywords

channel coding; code division multiple access; mobile radio; multipath channels; radio receivers; signal detection; spread spectrum communication; telecommunication terminals; FDD downlink reception; FlexRake architecture; RAKE receiver; WCDMA; baseband I/Q samples; buffer storage; codes; correlator engine; delay spread; flexible receiver architecture; mobile terminals; multipath allocation; receiver control; sequential despreading; signal reception; symbol-synchronous operation; tracked multipaths; Baseband; Buffer storage; Correlators; Delay; Downlink; Engines; Fading; Fingers; Multiaccess communication; Multipath channels;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, 2001. (SPAWC '01). 2001 IEEE Third Workshop on Signal Processing Advances in

Conference_Location

Taiwan

Print_ISBN

0-7803-6720-0

Type

conf

DOI

10.1109/SPAWC.2001.923829

Filename

923829