Patent ID: 11949483
Assignee: KONINKLIJKE PHILIPS N.V.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 23:
24. A User Equipment comprising a processor circuit and a memory circuit, wherein the memory circuit comprises instructions executable by the processor circuit,
wherein the processor circuit is arranged to receive from a radio signal,
wherein the radio signal comprises at least one DownLink reference signal,
wherein the processor circuit is arranged to calculate a precoding matrix for a plurality of antenna ports,
wherein the precoding matrix is based on a first codebook and on a second codebook and a plurality of combination coefficients,
wherein the first codebook comprises at least one transmit-side spatial beam components/vectors of the precoding matrix,
wherein the second codebook comprises one or more delay components/vectors of the precoding matrix,

wherein the processor circuit is arranged to receive a higher layer configuration,
wherein the higher layer configuration comprises an indication of a portion of beam vectors from the first codebook and a maximum allowable average amplitude for a first beam vector,
wherein the maximum allowable average amplitude for the first beam vector is arranged to restrict the average amplitude of the combination coefficients associated with the first beam vector,

wherein the processor circuit is arranged to report a Channel State Information feedback and/or a Precoder Matrix Indicator and/or a Precoder Matrix Indicator Rank Indicator,
wherein the Channel State Information feedback and/or the Precoder Matrix Indicator and/or the Precoder Matrix Indicator Rank are arranged to indicate the precoding matrix for configured antenna ports,
wherein the report comprises a bitmap,
wherein the bitmap is arranged to indicate at least selected delay vectors and spatial beam vectors,
wherein the selected delay vectors and the spatial beam vectors are associated with non-zero combination coefficients of the plurality of combination coefficients.