On-demand receive filtering in an UMTS terminal

J. Potman, Roelof Schiphorst, Cornelis H. Slump

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    Abstract

    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
    Pages216-220
    Number of pages5
    ISBN (Print)978-1-4244-2045-2
    DOIs
    Publication statusPublished - 7 Jul 2008
    EventNinth IEEE International Workshop on Signal Processing Advances in Wireless Communications - Recife, Brazil
    Duration: 6 Jul 20089 Jul 2008

    Publication series

    Name
    PublisherIEEE Signal Processing Society

    Workshop

    WorkshopNinth IEEE International Workshop on Signal Processing Advances in Wireless Communications
    Period6/07/089/07/08
    Other6-9 July 2008

    Keywords

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

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