DYNAMIC DM-RS SEQUENCE SELECTION BY PQL INDICATOR

摘要

Methods and apparatus are disclosed for dynamical DM-RS sequence generation in a wireless communications system. The present application discloses that a Physical Downlink Shared Channel (PDSCH) Resource Element (RE) Mapping and Quasi-Co-Location (PQL) indicator can be used to dynamically modify or update the DM-RS sequence generation parameters at a UE. Both the eNB and the UE generate DM-RS reference signals based on the reconfigured parameters. The eNB transmits the generated DM-RS reference signals to the UE to assist the UE in channel estimation.