Spatial channel characterisation of FDD wireless links

Ben Allen; Mark Beach; Peter Karlsson

doi:10.1049/cp:20010014

Spatial channel characterisation of FDD wireless links

Ben Allen
, Mark Beach
, Peter Karlsson

University of Bedfordshire

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Citation (Scopus)

Abstract

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

Original language	English
Title of host publication	nan
Publisher	Institution of Engineering and Technology
DOIs	https://doi.org/10.1049/cp:20010014
Publication status	Published - 1 Jan 2001
Event	Second International Conference on 3G Mobile Communication Technologies - London Duration: 26 Mar 2001 → 28 Mar 2001

Conference

Conference	Second International Conference on 3G Mobile Communication Technologies
City	London
Period	26/03/01 → 28/03/01
Other	Second International Conference on 3G Mobile Communication Technologies (26/03/2001-28/03/2001, London)

Keywords

telecommunication channels

Access to Document

10.1049/cp:20010014

https://ieeexplore.ieee.org/document/923510

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title = "Spatial channel characterisation of FDD wireless links",

abstract = "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",

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T1 - Spatial channel characterisation of FDD wireless links

AU - Allen, Ben

AU - Beach, Mark

AU - Karlsson, Peter

PY - 2001/1/1

Y1 - 2001/1/1

N2 - 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

AB - 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

KW - telecommunication channels

U2 - 10.1049/cp:20010014

DO - 10.1049/cp:20010014

M3 - Conference contribution

BT - nan

PB - Institution of Engineering and Technology

T2 - Second International Conference on 3G Mobile Communication Technologies

Y2 - 26 March 2001 through 28 March 2001

ER -

Spatial channel characterisation of FDD wireless links

Abstract

Conference

Keywords

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