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Spatial channel characterisation of FDD wireless links

Research output: Chapter in Book/Report/Conference proceedingConference contribution

  • BH Allen
  • BPG Karlsson
Original languageEnglish
Title of host publicationIEE 3G2001 Conference
Publisher or commissioning bodyInstitution of Electrical Engineers (IEE)
Pages68 - 72
ISBN (Print)0852967314
StatePublished - Mar 2001
Event2nd International Conference on 3G Mobile Communication Technologies - London, United Kingdom


Conference2nd International Conference on 3G Mobile Communication Technologies
CountryUnited Kingdom
Period1/03/01 → …


For smart antenna deployments in frequency division duplex (FDD) applications the downlink weight vector can be derived from the uplink steering vector. However, this assumes 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 5 MHz in urban environments, with this increasing to 15 MHz when long term averaging is applied. Results reported here are computed from measured data taken within the UMTS (Universal Mobile Telecommunications System) frequency band for a cluttered urban environment

Additional information

Rose publication type: Conference contribution Sponsorship: The authors gratefully acknowledge funding support of HEFCE JREI’98 for procurement of the Medav RUSK system and Allgon Systems AB for the loan of the antenna array. Furthermore, we wish to acknowledge additional funding from EPSRC grant GRL959555, 'Optimisation of Adaptive Antennas for UMTS Microcellular Environments' Other identifier: IEE Conf. Publ. No. 477

Research areas

  • adaptive antenna arrays, clutter, correlation methods, decorrelation


2nd International Conference on 3G Mobile Communication Technologies

Duration1 Mar 2001 → …
CountryUnited Kingdom

Event: Conference




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