Certain aspects of the present disclosure provide a method for wireless communications by a network entity. The method may include receiving an indication indicating a subset of one or more precoding matrix vectors associated with an estimated channel between a user equipment (UE) and the network entity. The subset of one or more precoding matrix vectors are part of a precoding matrix. The method may include calculating remaining precoding matrix vectors for the precoding matrix, based on the subset of one or more precoding matrix vectors. The method may include generating the precoding matrix based on the subset of one or more precoding matrix vectors and the remaining precoding matrix vectors. The method may include performing precoding of a downlink transmission based on the precoding matrix.