Patent ID: 11923975
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 0:
1. A computation device for compressing channel state information (CSI), the CSI representing a channel transfer function H having a spatial dimension (n) and a frequency dimension (f), the computation device comprising a processor configured to:
perform a spatial transformation and a frequency-to-time transformation on the channel transfer function H to obtain a transformed channel transfer function HT; and
compress the transformed channel transfer function HT to generate compressed channel state information (CCSI), wherein the compressing comprises:
selecting, from the transformed channel transfer function HT, a predetermined number L of values hτ,k of the transformed channel transfer function HT having the greatest amplitudes or all values hτ,k of the transformed channel transfer function HT exceeding a predetermined amplitude, wherein k represents spatial components and τ represents time taps, and
generating a channel state report based on the selected values of the transformed channel transfer function HT.