Patent ID: 11881918
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 18:
19. The BS of claim 15, wherein:
for each of the collocated antenna groups, based on an antenna module domain and a subband domain for respective antenna port of each type of the antenna modules, a channel coefficient matrix for multiple antenna modules is identified; and
the channel coefficient matrix comprises:
a matrix indicating an antenna domain (AD) basis that includes AD basis vectors for each type of the antenna modules,
a matrix indicating a frequency domain (FD) basis that includes FD basis vectors for each type of the antenna modules, and
a matrix indicating coefficients corresponding to pairs of the AD and FD basis vectors for each type of the antenna modules,

wherein a collocated antenna group includes at least two types of antenna modules comprising a first module with a first type of antenna module and a second module with a second type of antenna module.