公开(公告)号：US20240323054A1

公开(公告)日：2024-09-26

申请号：US18612666

申请日：2024-03-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hongsik YOON ,  Sebin IM ,  Gyoungil KWAK ,  Jungyong PARK ,  Jinho KIM ,  Hoil KIM ,  Huiwon JE

IPC: H04L25/02 ,  H04L5/00

CPC classification number: H04L25/0214 ,  H04L5/0048 ,  H04L25/0224

Abstract: Provided is an operation method of a user equipment performing narrowband Internet of Things-based communication, the operation method including determining a delayed distance based on at least one of a channel characteristic and a channel estimation technique-related coefficient, estimating, based on a time axis, a channel of a target subframe using reference signals of subframes from a start subframe prior to the target subframe to an end subframe corresponding to a determined delayed distance after the target subframe, and decoding the target subframe based on the estimated channel.

公开(公告)号：US20240235627A9

公开(公告)日：2024-07-11

申请号：US18492187

申请日：2023-10-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Gyoungil KWAK ,  Jinho KIM ,  Sunyoung LEE

IPC: H04B7/0456 ,  H04L5/00 ,  H04L25/02

CPC classification number: H04B7/0456 ,  H04L5/0048 ,  H04L25/0202

Abstract: An electronic device includes processing circuitry configured to calculate an intra metric based on cross correlation of first reference signal symbols (RSs) included in a first precoding resource block group (PRG) to which a target resource element (RE) belongs, calculate an inter metric based on cross correlation of one or more second RSs and one or more among the first RSs, the one or more second RSs being included in a second PRG adjacent to the first PRG along a frequency axis of a physical channel, the one or more second RSs being in proximity to the target RE, and the physical channel being received from a base station, compare a first ratio between the intra metric and the inter metric with a threshold ratio to obtain a comparison result, and determine a channel estimation mode with respect to the target RE based on the comparison result.

公开(公告)号：US20240137081A1

公开(公告)日：2024-04-25

申请号：US18492187

申请日：2023-10-22

Applicant: Samsung Electronics Co., Ltd.

Inventor： Gyoungil KWAK ,  Jinho KIM ,  Sunyoung LEE

IPC: H04B7/0456 ,  H04L5/00 ,  H04L25/02

CPC classification number: H04B7/0456 ,  H04L5/0048 ,  H04L25/0202

Abstract: An electronic device includes processing circuitry configured to calculate an intra metric based on cross correlation of first reference signal symbols (RSs) included in a first precoding resource block group (PRG) to which a target resource element (RE) belongs, calculate an inter metric based on cross correlation of one or more second RSs and one or more among the first RSs, the one or more second RSs being included in a second PRG adjacent to the first PRG along a frequency axis of a physical channel, the one or more second RSs being in proximity to the target RE, and the physical channel being received from a base station, compare a first ratio between the intra metric and the inter metric with a threshold ratio to obtain a comparison result, and determine a channel estimation mode with respect to the target RE based on the comparison result.