Millimeter-wave outdoor access shadowing mitigation using beamforming arrays

In this paper we present 60 GHz channel measurements that have been performed in an outdoor access scenario. At the transmitter side (small cell base station) a 128 element beamforming array was used. This array was used to measure the channel impulse response at an omni-directional receiver antenna for 133 different transmit beam settings, each representing a narrow beam in a different spatial direction. A total of 58 different receiver positions was measured and at every location one unobstructed measurement and one measurement with human body blockage was performed. The results show, that at some locations, reflected paths exist with only a minor drop in signal power, relative to the line of sight path.