Title :
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
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;
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
DOI :
10.1109/SPAWC.2001.923829
