Spatio-temporal investigation of UTRA FDD channels

SE Foo, MA Beach, P Karlsson, P Eneroth, B Lindamark, J Johansson

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

17 Citations (Scopus)


Smart antennas promise to provide range extension and capacity enhancements crucial to the successful deployment of Universal Mobile Telecommunications System (UMTS) networks. The frequency offset between the uplink and downlink in the frequency division duplex (FDD) air interface gives rise to a frequency dependency in the channel responses and potential problems in downlink beamforming. In order to investigate this, a highly novel dual-band, dual-polarised channel sounding trial was performed in the UMTS FDD bands by the University of Bristol. The wideband measurements were conducted in the City of Bristol, encompassing urban city and sub-urban residential scenarios and subsequent post processing was performed to extract channel parameters across the two bands. This paper presents the results and analysis done for the single polarisation static measurements. It was observed that in most instances, there was a higher degree of scattering in the higher frequency band, resulting in larger angular spreads and delay spreads. The channels also exhibited a strong degree of de-correlation when viewed from the spatial and temporal domains
Translated title of the contributionSpatio-temporal investigation of UTRA FDD channels
Original languageEnglish
Title of host publicationThird International Conference on 3G Mobile Communication Technologies
PublisherInstitution of Engineering and Technology (IET)
Pages175 - 179
ISBN (Print)0852967497
Publication statusPublished - May 2002
Event3rd International Conference on 3G Mobile Communication Technologies - London, United Kingdom
Duration: 1 May 2002 → …


Conference3rd International Conference on 3G Mobile Communication Technologies
Country/TerritoryUnited Kingdom
Period1/05/02 → …

Bibliographical note

Rose publication type: Conference contribution

Sponsorship: The authors gratefully acknowlege financial support of HEFCE for the procurement of the Medaw Rusk system under JREI '98 Allgon system AB for loan of the UMTS array, Philip Mattos of ST Electronics for the GPS receiver. In addition, we are grateful to the Oversea Research Studentship (ORS) and the Unversity of Bristol for their financial support of SE Foo

Other identifier: IEE Conf. Publ. No. 489


  • frequency division multiplexing
  • 3G mobile communication
  • adaptive antenna arrays
  • array signal processing
  • broadband networks


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