METHODS OF POINT ASSOCIATION FOR COOPERATIVE MULTIPLE POINT TRANSMISSION

摘要

Procedures for point association as well as measurement and feedback required to enable point association for CoMP deployment scenario 4 are proposed. In a first novel aspect, a serving eNB configures a first higher-layer configuration for RSRP measurement to be used by a UE for serving point selection. The higher-layer configuration contains multiple CSI-RS configurations, and each CSI-RS configuration indicates a set of resource elements (REs) or subcarriers in both frequency domain and time domain as one CSI-RS resource with non-zero transmission power. The UE then performs RSRP measurements based on the multiple CSI-RS configurations and reports RSRP measurement results to the serving eNB. In a second novel aspect, the serving eNB configures a second higher-layer configuration for CSI reporting based on the reported RSRP measurement results. In a third novel aspect, the serving eNB sends CSI-RS information to the UE for uplink power control.