Antenna system for interference reduction in a mobile handset

Author

Knudsen, Mikael B. ; Baumgartner, Thomas ; Pedersen, Gert F.

Author_Institution

Bosch Telecom Danmark A/S, Pandrup, Denmark

Volume

2

fYear

2000

fDate

2000

Firstpage

1367

Abstract

This work investigates the possible SINR gain, which can be obtained by using a low complexity predetection antenna system on a handheld phone. The antenna system consists of two antenna elements where the phase and amplitude is altered prior to a RF combining. A new algorithm for predicting the weights has been proposed and evaluated, which is specifically suitable for a GSM handset. The algorithm is developed for non-synchronized networks. The evaluation of the algorithm is based on measurements of incoming multipath fields received by a pair of antenna elements, which is mounted on a dummy handset. The measurements were carried out in a typical GSM-1800 urban environment. The results show the potential for a significant improvement of the SINR for a slow moving user

Keywords

antenna phased arrays; array signal processing; cellular radio; interference suppression; mobile antennas; multipath channels; radiofrequency interference; receiving antennas; signal detection; telephone sets; GSM handset; GSM-1800 urban environment; RF combining; SINR gain; algorithm; amplitude; antenna elements; dummy handset; handheld phone; interference reduction; low complexity predetection antenna system; mobile handset; multipath fields measurement; nonsynchronized networks; phase; Antenna measurements; GSM; Interference; Mobile antennas; Mobile handsets; Prediction algorithms; Radio frequency; Receiving antennas; Signal to noise ratio; Telephone sets;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference Proceedings, 2000. VTC 2000-Spring Tokyo. 2000 IEEE 51st

Conference_Location

Tokyo

ISSN

1090-3038

Print_ISBN

0-7803-5718-3

Type

conf

DOI

10.1109/VETECS.2000.851348

Filename

851348