Sampling rate conversion for timing adjustment in 3.5G multimode mobile terminals

Authors:
Dietmar Wenzel
Affiliations:
Infineon Technologies AG, Neubiberg, Germany
Venue:
EUROCAST'07 Proceedings of the 11th international conference on Computer aided systems theory
Year:
2007

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Abstract

Multimode Mobile Terminals require flexible signal processing architectures to support different mobile standards like GSM/EDGE and UMTS/HSDPA in one platform with minimum hardware resources. In this paper, an efficient architecture is presented using same system clock frequency for UMTS and GSM signal processing and an all-digital asynchronous sampling rate converter. In addition, it is shown how this architecture can be efficiently used to solve the problemof timing adjustments in time continuous signals of the UMTS/HSDPA receive and transmit path. The traditional and the proposed approaches are illustrated.