Title :
On the design of a multi-mode receive digital-front-end for cellular terminal RFICs
Author :
Hueber, Gernot ; Maurer, Linus ; Strasser, Georg ; Stuhlberger, Rainer ; Chabrak, Karim ; Hagelauer, Richard
Author_Institution :
Res. Inst. for Integrated Circuits, Johannes Kepler Univ., Linz, Austria
Abstract :
Developments aimed at the software-defined-radio (SDR) concept for cellular applications received increasing attention due to necessity of multi-mode/multi-system capable terminals for next generation cellular communication systems. This paper describes a highly reconfigurable digital-front-end (DFE) enabling multi-mode capable RF receivers for cellular applications. Its main functionality includes sample-rate-conversion, channel filtering, dynamic range control, and signal conditioning for transmission via a digital interface from RFIC to baseband IC. The described partitioning shifts some of the functionality, traditionally located in the analog-front-end (channel filtering, gain control) to the digital-front-end. The technology shift towards RF-CMOS further favors this strongly digital receiver architecture.
Keywords :
cellular radio; digital integrated circuits; radio receivers; radiofrequency integrated circuits; software radio; RF-CMOS; analog-front-end; cellular communication system; cellular terminal RFIC; channel filtering; digital receiver architecture; digital-front-end; dynamic range control; multimode capable RF receiver; sample-rate-conversion; signal conditioning; software-defined-radio; Analog integrated circuits; Application software; Baseband; Communication system control; Digital filters; Digital integrated circuits; Dynamic range; Filtering; Radio frequency; Radiofrequency integrated circuits;
Conference_Titel :
Microwave Conference, 2005 European
Print_ISBN :
2-9600551-2-8
DOI :
10.1109/EUMC.2005.1610280
