RRH ENHANCED COMP TRANSMISSION SYSTEM AND CSI-RS CONFIGURATION METHOD THEREOF

摘要

The present invention proposes an RRH enhanced CoMP transmission system comprising a Base Station (BS) for transmitting to all UEs in the present cell resource configuration parameters of Channel State Information Reference Signaling (CSI-RS) of BS and each RRH in the cell via a broadcast channel, transmitting to the non-CoMP UEs resource configuration parameters of the common CSI-RS in the present cell via a Radio Resource Control (RRC) signaling, and informing the CoMP UEs of a set of transmission points that are subject to be measured via an RRC signaling, non-CoMP UEs for performing channel state measurement by means of the resource configuration parameters of the common CSI-RS transmitted from BS, and feeding back the measurement to BS via an uplink channel; and CoMP UEs for performing channel state measurement on the transmission points listed in the set of transmission points by means of the resource configuration parameters of CSI-RSs of respective transmission points transmitted from BS via the broadcast channel, and feed back the measurement to BS via an uplink channel. With the systems and methods according to the present invention, the CoMP transmission scenarios in an LTE-Advanced system can be matched well by effectively configuring CSI-RS modes in the system.