Patent ID: 6385457
Filing Date: 2002-05-07
Classification: H04W

Abstract:
A method pertaining to a radio communications system which includes at least one base station controller and at least one radio base station which establishes radio communication with at least one terminal and which only passes signaling information between the at least one terminal and the base station controller, and the at least one radio base station having antenna lobes that can be directed towards the one terminal, and said base station controller switching system communication by the at least one terminal from a first to a second radio channel, said method performed by the radio base station comprising the steps of:a) receiving, over said first radio channel, signals that have a given direction-of-arrival from the one terminal; b) estimating the direction-of-arrival of the received signals such as to obtain a directional estimate; c) identifying a terminal recognition character; d) registering the terminal recognition character and said directional estimate in a storage device; e) identifying said second radio channel, which is allocated by said base station controller, for communication with the one terminal; f) reading-out said directional estimate from the storage device; g) directing the antenna lobe for the second radio channel in accordance with said directional estimate which is read out; and h) communicating with the one terminal over said second radio channel.