ROTATING LOBE ACCESS METHOD

摘要

The invention relates to a rotating lobe access method. The invention simplifies making fast and simple initial acquisition, paging, or call set up, both in downlink and uplink in mobile radio (telephone) systems. Thus, the present invention provides a rotating lobe access method in a telecommunication system including at least one base station and a number of mobile stations and having antenna means supporting a number of horizontal lobes for communication between the base station and the mobile stations. Signals to and from the antenna means are modulated by a lobe shaping unit to bring the lobe to rotate in a horizontal plane. Also, rotations or sweeps in different vertical angles are possible. Preferably, the method uses separate transmission and reception lobes and the reception lobe is a delayed replica of the transmission lobe. After achieving synchronisation with the base station transmission lobe, the mobile stations goes into a sleep mode.