A METHOD AND A SYSTEM FOR DOWN-LINK DIVERSITY IN RADIO TRANSMISSION

摘要

In a cellular radio system down-link diversity is provided. The system has means in a base station (BS) for receiving signals from a mobile station (MS) using a diversity reception arrangement, in particular an antenna diversity arrangement (207, 209). Information regarding the current reception conditions is extracted from the reception diversity system and is used for improving the transmission. Thereby the transmitted signals can have less signal power, which in turn makes it possible to provide smaller cluster sizes and thereby increase the channel capacity in the cellular radio system.