An improved glazing unit extending along a plane, P, defined by a longitudinal axis, X, and a vertical axis, Z; having a width, DW, measured along the longitudinal axis, X, and a length, DL, measured along the vertical axis, Z, including a glass panel, a housing able to accommodate a communication device and an opening arranged on the glass panel. The present invention also discloses a communication system including a glazing unit, at least a 4G and/or 5G signal communication unit and a provider fixed station or active or passive repeater, which is placed at least at 1 m outside from the glazing unit, wherein the 4G and/or 5G signal communication unit is fixed to the glazing unit at the opposite side from the provider fixed station or active or passive repeater.