Wideband impulse response measurements at 900 MHz and 1.7 GHz

Multipath measurements at 900 MHz and 1.7 GHz have been performed in large cells in rural and urban terrain, using a frequency sweep technique and correlation in the receiver. Statistical distributions of instantaneous mean delay, delay spread, delay window and delay interval have been calculated, in addition to averaged channel impulse responses. No significant differences between the two frequencies were observed, even though there was a tendency toward slightly longer reflections at 900 MHz. With line of sight, multipath generally represents no problem in large cells; with no line of sight, multipath profiles of a length of more than 100 μs were observed