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

Claim 6:
7. A method comprising:
receiving, at a second device, 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 a 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 Ŵ2 and wherein the method further comprises:
determining state information of the channel, wherein a coefficient of matrix Ŵ2, at a position with the spatial component indicated by the strongest coefficient indicator and with a frequency component determined by a predetermined index, assumes a preconfigured value.