Measurement of time-spatial characteristics between indoor spaces in different LOS buildings

In order to overcome the increasing traffic problems of mobile terminals used in high-rise offices of buildings, it is necessary to clarify the time-spatial characteristics which are composed of the characteristics of the path loss, the delay profile and the spatial arrival angular profile for travelling waves from one high-rise office to another office in a different building. In this paper, we measure the time-spatial characteristics of radio waves passing from one indoor space to another and identify the key parameters determining the time-spatial characteristics based on measured results.