Patent ID: 6073032
Filing Date: 2000-06-06
Classification: H04B

Abstract:
A receiver for receiving a signal of a desired user, which signal may arrive at the receiver along several different paths (112, 114, 116) with several different delays, and which receiver comprises an antenna array (500, 700-704) consisting of several elements, one or more channel units (504-508, 738-742) comprising at least one means (620, 704) for demodulating the desired received signal component, characterized in that the channel unit (504-508, 738-742) comprises means (604, 732, 802) for searching for the incoming directions and delays of the received signal components, and means (604, 732, 802) for indicating the parameters of the best components to the demodulation means (600, 602, 804-808), and further characterized in that the receiver comprises means (706) connected to the antenna array (700-704) for analogically phasing the received signal so that the gain from the antenna array is the greatest in the desired beam-like directions, a group of radio-frequency units (712-716) the input of which comprises a phased signal, means (718-722) connected to the output of the radio-frequency units for digitizing the signal, one or more channel units (738-742) the input of which comprises a digitized signal and which channel unit comprises at least one measuring and switching means (802, 732) for searching the received signal for the antenna beams corresponding to the incoming directions of the strongest signal components and for measuring the delays of said components, and means (802, 732) for directing said components to the demodulation means (804-808) of the channel unit.