公开(公告)号：US12028198B2

公开(公告)日：2024-07-02

申请号：US17499094

申请日：2021-10-12

Applicant: Intel Corporation

Inventor： Peng Lu ,  Alexei Davydov ,  Jong-Kae Fwu ,  Sungho Moon ,  Xiangyang Zhuang

IPC: H04L27/26 ,  H04J13/00 ,  H04L5/00

CPC classification number: H04L27/2613 ,  H04J13/004 ,  H04J13/0062 ,  H04L5/0048 ,  H04L27/2636

Abstract: An apparatus and system to compensate for phase noise in a 5G or 6G DFT-S-OFDM signal are described. An access port (AP)-specific orthogonal cover code (OCC) is applied to phase tracking reference signal (PTRS) symbols in each of a plurality of PTRS groups. The PTRS group are inserted between data symbols to form a data vector prior to perform transform precoding on the data vector and transmission to a UE. The UE extracts the PTRS symbols from different PTRS APs using the OCC specific to each AP. After extraction, the phase noise for each PTRS group is estimated and used to compensate the data symbols associated with the PTRS group.

公开(公告)号：US20250007600A1

公开(公告)日：2025-01-02

申请号：US18344191

申请日：2023-06-29

Applicant: Intel Corporation

Inventor： Yang-Seok Choi ,  Sagar Dhakal ,  Husam Elfadil ,  Thushara Hewavithana ,  Xiaofeng Li ,  Peng Lu ,  Tariq Qureshi ,  Jan Schreck

IPC: H04B7/08 ,  H04B7/0426 ,  H04B7/06

Abstract: Techniques are disclosed to address issues related to the computation of channel state information (CSI) and angular spectrum (AS) to perform beamforming. The CSI and AS, as well as various statistical channel parameters of a wireless channel, may be computed using different techniques, which include the use of domain knowledge enhanced neural networks (DKE-NNs). The CSI and AS may be further utilized to perform beamforming using various techniques. One of these techniques may include the implementation of eigen beamforming, which provides artificially generated power at locations within the AS that are identified with estimated eigenvector beam locations. As a result of the artificially-generated power, the resulting vector decomposition used to provide the beamforming weights results in widened eigenvector beams.