Title :
Antenna systems for EGPRS handsets
Author :
Knudsen, Mikael Bergholz ; Brink, Stig B. ; Pedersen, Gert Frolund
Abstract :
The next generation GSM terminals will include EGPRS, offering high data rate services and packet data services. Data rates up to 473.6 kbits/s are theoretically possible, but only at very high SNR (signal-to-noise ratio) and CIR (channel impulse response) levels. Using an antenna system (i.e. more than one antenna port) in the handset, it is possible to combine the signals from the antennas in such a way that both the SNR and CIR level is improved. For data services, an improvement in the SNR and CIR level directly translates into an increased data throughput. This paper investigates the possible data throughput increase for EGPRS that can be obtained by using antenna systems in a handset with two antennas
Keywords :
analogue-digital conversion; cellular radio; data communication; mobile antennas; packet radio networks; parameter estimation; receiving antennas; telecommunication channels; telephone sets; ADC; EGPRS handsets; GSM terminals; General Packet Radio Service; SNR; analogue digital conversion; antenna systems; channel estimation; channel impulse response; data throughput; enhanced GPRS; high data rate services; maximum ratio combining; optimum combining; packet data services; signal-to-noise ratio; Chromium; Electronic mail; Frequency; GSM; Ground penetrating radar; Mobile handsets; Modulation coding; Telephone sets; Throughput; Web and internet services;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2001 12th IEEE International Symposium on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-7244-1
DOI :
10.1109/PIMRC.2001.965405
