METHOD AND DEVICE FOR DETERMINING MAPPING RELATIONSHIP BETWEEN TCI STATE AND DMRS, AND METHOD AND DEVICE FOR CONFIGURING MAPPING RELATIONSHIP BETWEEN TCI STATE AND DMRS

摘要

Embodiments of the present application provide a method and device for determining a mapping relationship between a TCI state and a DMRS, and a method and device for configuring a mapping relationship between a TCI state and a DMRS. The method for determining a mapping relationship between a TCI state and a DMRS comprises: receiving downlink control information or high-level parameter configuration information; and determining correspondences between N TCI states and M DMRS CDM groups or Y DMRS ports, wherein N, M, and Y are all integers greater than or equal to 1. By determining correspondences between TCI states and DMRS CDM groups or DMRS ports, the embodiments of the present application solve the problem of correspondences between multiple TCI states indicated by DCI received by a terminal and PDSCHs sent by multiple TRPs.