Patent ID: 7515916
Filing Date: 2009-04-07
Classification: H04W

Abstract:
1. A distributed radio frequency (RF) propagation measurement system for automatically characterizing RF properties of a predefined physical space, said system comprising: a single central controller; a plurality of sounder units controllable by said central controller, each sounder unit including, synchronization means for aligning frequency and phase of said channel sounder transmitters and said channel sounder receivers within said plurality of sounder units; communication means for transferring data and commands between said central controller and said plurality of sounder units; location determining means to measure position of said plurality of sounder units within said predetermined physical space; software means for sequencing operation of said plurality of sounder units, adjusting directionality of said antenna array means and combining said plurality of power-delay profiles obtained from said plurality of sounder units in conjunction with said location determining means to obtain RF scattering and attenuation properties; and control means for controlling said plurality of sounder units in accordance with said software means; wherein said distributed RF propagation measurement system automatically obtains RF scattering and attenuation properties in at least two dimensions within said predefined physical space.