FR3 Radio Propagation Channel Measurements and Modelling in Outdoor Environment for 5G and 6G Wireless Networks

Propagation channel measurements in Line-of-sight (LoS) and None-Line-of-Sight (NLoS) scenarios were conducted at 7.6 GHz and 13.6 GHz in the FR3 frequency band in a suburban outdoor environment at Durham University. The measurements employed omnidirectional antennas at the transmitter and receiver to evaluate multipath components and characterize the channel properties of these recently allocated frequency bands for International Mobile Telecommunications (IMT). The analysis covered several channel parameters, including the Power Delay Profile (PDP), Root-Mean-Square (RMS) delay spread, and the Rician K-Factor. Additionally, the path loss coefficient was estimated using both the Close-In (CI) and the Floating-Intercept (FI) models.