  Fixed wireless access at mm/cm bands has been proposed for high-speed
broadband access to suburban residential customers and building penetration
loss is a key parameter. We report a measurement campaign at 28 GHz in a New
Jersey suburban residential neighborhood for three representative single-family
homes. A base antenna is mounted at 3-meter height, emulating a base station on
a lamppost, moves down the street up to 200 meters. A customer premises
equipment (CPE) device, acting as relay to provide indoor coverage throughout
the desired area, is mounted either on the exterior of a street-facing window
or 1.5 meters behind the window. The median indoor-outdoor path gain
difference, corresponding to the extra loss by moving the window-mounted CPE
indoor, is found to be 9 dB for the house with low-loss materials and
plain-glass windows, and 17 dB for the house with low-emissivity windows and
foil-backed insulation. These losses are in addition to other losses (e.g.,
vegetation blockage) in comparison to free space propagation.
