A method, a base station and a mobile station for transmitting and detecting reference signals

A method for detecting Channel State Information Reference Signals (CSI-RSs) performed by a mobile station, comprising:

• receiving aggregate configuration information about a CSI-RS aggregation resource configuration from a base station, wherein the CSI-RS aggregation resource configuration is obtained by aggregating a plurality of CSI-RS initial resource configurations;
• determining antenna ports in an antenna array of the base station needing to be detected according to the received aggregation configuration information;
• detecting CSI-RSs corresponding to the determined antenna ports.

A base station comprising:

• a resource management unit configured to aggregate a plurality of CSI-RS initial resource configurations to obtain a CSI-RS aggregation resource configuration;
• a transmitting unit configured to transmit CSI-RSs of a first antenna port in the antenna array at a first density using a first part of resource configuration of the CSI-RS aggregation resource configuration, and transmit CSI-RSs of a second antenna port in the antenna array at a second density using a second part of resource configuration of the CSI-RS aggregation resource configuration.

A mobile station comprising:

• a receiving unit configured to receive aggregate configuration information about a CSI-RS aggregation resource configuration from a base station, wherein the CSI-RS aggregation resource configuration is obtained by aggregating a plurality of CSI-RS initial resource configurations;
• a port determining unit configured to determine antenna ports in an antenna array of the base station needing to be detected according to the received aggregation configuration information;
• a detecting unit configured to detect CSI-RSs corresponding to the determined antenna ports.