Patent ID: 11909484
Assignee: NOKIA TECHNOLOGIES OY
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 16:
17. A second device comprising:
at least one processor; and
at least one memory storing instructions that, when executed by the at least one processor, cause the second device to perform at least
receiving, from a first device, uplink control information comprising a strongest coefficient indicator and non-zero linear combination coefficients scaled by a maximum coefficient, wherein the coefficients are of a 2L×M matrix Ŵ2 for a pre-coder matrix indicator (PMI) matrix, wherein matrix Ŵ2 has 2L spatial components and M frequency components,
the received non-zero linear combination coefficients exclude the maximum coefficient, and
the received strongest coefficient indicator with ┌log2 2L┐ bits indicates the index of a spatial component associated with the maximum coefficient of matrix z; and
determining state information of the channel, wherein a coefficient of matrix Ŵ2 assumes a preconfigured value at a position determined by the strongest coefficient indicator and a predetermined index of the matrix Ŵ2.