US 12,244,384 B2
Method and apparatus for compression-based CSI reporting
Md. Saifur Rahman, Plano, TX (US); and Eko Onggosanusi, Coppell, TX (US)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Sep. 8, 2023, as Appl. No. 18/464,005.
Application 18/464,005 is a continuation of application No. 17/812,136, filed on Jul. 12, 2022, abandoned.
Claims priority of provisional application 63/341,382, filed on May 12, 2022.
Claims priority of provisional application 63/335,557, filed on Apr. 27, 2022.
Claims priority of provisional application 63/225,234, filed on Jul. 23, 2021.
Prior Publication US 2023/0421228 A1, Dec. 28, 2023
Int. Cl. H04B 7/06 (2006.01); H04L 5/00 (2006.01)
CPC H04B 7/0634 (2013.01) [H04B 7/0626 (2013.01); H04L 5/0048 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A user equipment (UE) comprising:
a transceiver configured to receive a configuration associated with a codebook for a channel state information (CSI) report based on a codebook; and
a processor operably coupled to the transceiver, the processor, based on the configuration, configured to determine N3N4 precoding matrices, N3 precoding matrices in a frequency domain (FD) for each of N4 consecutive time intervals, based on at least four components: (i) L vectors, each of length

OG Complex Work Unit Math
 (ii) Mν vectors, each of length N3, (iii) N vectors, each of length N4, and (iv) 2LMνN coefficients, LMνN coefficients associated with each of two halves of PCSIRS ports,
wherein the transceiver is further configured to transmit the CSI report including a first indicator indicating the L vectors, a second indicator indicating the Mν vectors, a third indicator indicating the N vectors, and a fourth indicator indicating amplitude and phase of KNZ coefficients that are non-zero,
where N3>1, N4>1, KNZ≤2LMνN, and PCSIRS is a number of CSI reference signal (CSI-RS) ports configured for the CSI report.