Two-stage spatial domain basis selection for coherent joint transmission

Abstract

Certain aspects of the present disclosure provide techniques for two-stage spatial domain (SD) basis selection for coherent joint transmission (CJT). An example method, performed by a UE, includes receiving configuration information indicating resources associated with multiple transmission reception points (TRPs) with which the UE is configured to communicate using a codebook structure based on a matrix of spatial domain (SD) bases, a matrix of coefficients, and a matrix of frequency domain (FD) bases, measuring channel state information (CSI) reference signals (CSI-RSs) from the multiple TRPs according to the configuration information, and transmitting at least two stages of information regarding selection of the SD bases.

Dependencies are inferred from the claim text.