Spatial de-correlation of the UTRA-FDD radio channel

B Allen, MA Beach, Peter Karlsson

Research output: Working paper

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For smart antenna deployment in Frequency Division Duplex (FDD) applications the downlink weight vector can be derived from the uplink steering vector, assuming a degree of correlation between these channels. It is shown here that de-correlation between uplink and downlink power azimuth spectrums (PAS) is significant for frequency offsets as small as 5MHz in urban environments. Results reported here are computed from measured data taken within the UTRA (UMTS Terrestrial Radio Interface) frequency band for cluttered urban
Original languageEnglish
Pages5 p
Publication statusPublished - Oct 2000

Bibliographical note

Additional information: A paper presented to the 8th Management Committee and Working Group Meeting of COST 260 : Session 2: RF and Beam Forming Technology, held in Rennes, France, October 1-3, 2000

Sponsorship: The authors gratefully acknowledge funding support under HEFCE JREI’98 and Allgon Systems AB for the loan of the antenna array

Contributor: European Cooperation in the Field of Scientific and Technical Research (EURO-COST)


  • smart antenna
  • Frequency Division Duplex (FDD)


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