US 2026/0291579 A1 · METHOD AND APPARATUS FOR DETERMINING PRECODING MATRIX IN MOBILE COMMUNICATIONS

Abstract

Various solutions for determining precoding matrix with respect to an apparatus in mobile communications are disclosed. The apparatus may receive a plurality of channel state information reference signal (CSI-RS) resources. The apparatus may determine a precoding matrix indicator (PMI). The PMI may correspond to a precoding matrix W. The precoding matrix W may be a product of matrices WD and WP. The matrix WD may be a block diagonal matrix diag{W1, . . . , WNg}, and each block matrix Wk of the block diagonal matrix may be associated with one of the plurality of CSI-RS resources. The matrix WP may be an inter-resource phase compensation matrix. The apparatus may transmit a CSI report including the PMI.

Claims20

Dependent claims

A method, comprising:

receiving, by a processor of an apparatus, a plurality of channel state information reference signal (CSI-RS) resources;
determining, by the processor, a precoding matrix indicator (PMI), wherein the PMI corresponds to a precoding matrix W, the precoding matrix W is a product of matrices WD and WP, the matrix WD is a block diagonal matrix diag{W1, . . . , WNg}, each block matrix Wk of the block diagonal matrix is associated with one of the plurality of CSI-RS resources, and the matrix WP is an inter-resource phase compensation matrix;
and
transmitting, by the processor, a CSI report including the PMI.

1 more element

An apparatus, comprising:

a transceiver which, during operation, wirelessly communicates with a wireless network;
and
a processor communicatively coupled to the transceiver such that, during operation, the processor performs operations comprising:
receiving, via the transceiver, a plurality of channel state information reference signal (CSI-RS) resources;
determining a precoding matrix indicator (PMI), wherein the PMI corresponds to a precoding matrix W, the precoding matrix W is a product of matrices WD and WP, the matrix WD is a block diagonal matrix diag{W1, . . . , WNg}, each block matrix Wk of the block diagonal matrix is associated with one of the plurality of CSI-RS resources, and the matrix WP is an inter-resource phase compensation matrix;
and
transmitting, via the transceiver, a CSI report including the PMI.

4 more elements

Dependencies are inferred from the claim text.

Method and apparatus for determining precoding matrix in mobile communications

Life of this patent

Method and apparatus for determining precoding matrix in mobile communications

Life of this patent

Abstract

Claims20