On-demand receive filtering in an UMTS terminal

J. Potman, Roelof Schiphorst, Cornelis H. Slump

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    This paper describes a novel on-demand receive filter in an UMTS terminal. The receive filter is the first function after the Analog-to-Digital converter and is for that reason one of the most computation intensive parts in a receiver. The proposed filter architecture measures the out-of-band interference and calculates the required attenuation, which is used to select the appropriate filter. To assess the advantages of this on-demand receive filter, we have carried out field strength measurements in the UMTS FDD downlink band (2.1 GHz). These measurements were carried out in Amsterdam, a dense urban area with 5 active UMTS operators. Our measurement results show that in a live network configuration there is almost no out-of-band interference. Moreover, an on-demand filter would save in this case more than 68% power compared to a fixed conventional receive filter.
    Original languageUndefined
    Title of host publicationProceedings of the Ninth IEEE International Workshop on Signal Processing Advances in Wireless Communications
    Place of PublicationBrazil
    PublisherIEEE Signal Processing Society
    Number of pages5
    ISBN (Print)978-1-4244-2045-2
    Publication statusPublished - 7 Jul 2008

    Publication series

    PublisherIEEE Signal Processing Society


    • EWI-13129
    • IR-64900
    • METIS-252040

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