APPARATUS AND METHOD TO OPERATE A SOUNDING ANTENNA SWITCHING SCHEME IN A MOBILE COMMUNICATION SYSTEM

摘要

PURPOSE: A sounding antenna switching mode operation method in a mobile communication system and apparatus thereof are provided to operate a sounding antenna switching mode for accurate downlink channel state estimation. CONSTITUTION: An AMS(Advanced Mobile Station) determines an antenna structure for sounding antenna switching operation in case of supporting a sounding antenna switching type(313, 317). The AMS transmits an AAI_REG-REQ message to an ABS(Advanced Base Station)(319). The AMS receives an AAI_REG-RSP message from the ABS(321). The AMS receives a sounding command A-MAP IE from the ABS(323).