METHOD AND SYSTEM FOR SENDING SOUNDING REFERENCE SIGNAL USED FOR COORDINATED MULTIPOINT TRANSMISSION SYSTEM

摘要

The present invention provides a method and a system for sending a sounding reference signal used for a coordinated multipoint transmission system. The method comprises: a base station setting configuration information for sending an SRS and delivering the configuration information to a user terminal, and the user terminal sending, according to the obtained configuration information, the SRS to the base station. Through the method of the present invention, the quality of SRS channel estimation by each base station in a coordinated set is improved, so that the base station may obtain downlink channel information by use of channel reciprocity, thereby greatly reducing the feedback quantity of a UE.