Title :
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
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;
Conference_Titel :
Vehicular Technology Conference Proceedings, 2000. VTC 2000-Spring Tokyo. 2000 IEEE 51st
Conference_Location :
Tokyo
Print_ISBN :
0-7803-5718-3
DOI :
10.1109/VETECS.2000.851348
