公开(公告)号：US20240421854A1

公开(公告)日：2024-12-19

申请号：US18704019

申请日：2022-10-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jungi JEONG ,  Junhwa OH ,  Sanghyuk WI ,  Seungyoon LEE ,  Yuntae PARK

IPC: H04B5/43 ,  H01Q1/24 ,  H01Q3/44 ,  H04B7/04 ,  H04W16/28 ,  H04W88/10

Abstract: Provided is a 5G or 6G communication system for supporting higher data rates after the 4G communication system such as LTE.
According to the disclosure, a base station (BS) including a near field reflecting intelligent surface (RIS) may include the near field RIS including at least one meta surface which reflects an RIS beam into a target area, a transceiver and a processor. The processor may be configured to identify an operation mode among a normal mode or an RIS mode based on whether a target area is included in a reflecting beam coverage, and control the transceiver to transmit the RIS beam onto the meta surface based on at least one of a type of the near field RIS, configuration information of the near field RIS or information about the target area, in response to the operation mode being identified as the RIS mode.

公开(公告)号：US20240129752A1

公开(公告)日：2024-04-18

申请号：US18485993

申请日：2023-10-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yuntae PARK ,  Junhwa OH ,  Sanghyuk WI ,  Jungi JEONG

IPC: H04W16/28 ,  H01Q3/46

CPC classification number: H04W16/28 ,  H01Q3/46

Abstract: The disclosure relates to a 5G or 6G communication system to support a higher data transmission rate. The disclosure relates to a reconfigurable intelligent surface (RIS) enabling a low phase error at various incidence angles/reflection angles and an apparatus including the same. The RIS comprises a unit cell pattern formed in a direction corresponding to a polarization direction, the unit cell configured to adjust a reflection phase; a switch operably connected to the unit cell pattern, the switch configured to adjust the reflection phase; and a dummy pattern positioned between unit cell patterns in case that a plurality of unit cells is arranged.

公开(公告)号：US20240195458A1

公开(公告)日：2024-06-13

申请号：US18536940

申请日：2023-12-12

Applicant: Samsung Electronics Co., Ltd.

Inventor： Junhwa OH ,  Yuntae PARK ,  Sanghyuk WI ,  Jungi JEONG

IPC: H04B7/04

CPC classification number: H04B7/04013

Abstract: A 5G communication system or a 6G communication system for supporting higher data rates beyond a 4G communication system such as long term evolution (LTE). A reconfigurable intelligent surface (RIS) including a plurality of unit cells in a wireless communication system includes a first pattern included in a top layer of a unit cell included in the RIS, a second pattern included in a bottom layer of the unit cell included in the RIS, and at least one switch configured to electrically ground or short the first pattern and the second pattern in response to a command for determining whether the unit cell included in the RIS operates as a transmissive RIS or a reflective RIS.

公开(公告)号：US20240007176A1

公开(公告)日：2024-01-04

申请号：US18154604

申请日：2023-01-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jungi JEONG ,  Yuntae PARK ,  Junhwa OH ,  Seungyoon LEE ,  Sanghyuk WI

IPC: H04B7/155 ,  H04B7/026 ,  H01Q15/14

CPC classification number: H04B7/15528 ,  H04B7/026 ,  H01Q15/148

Abstract: The present disclosure relates to a 5G communication system or a 6G communication system for supporting higher data rates beyond a 4G communication system such as long term evolution (LTE). A unit cell of a RIS includes a first conductive structure including a first element and a second element disposed under the first element; a second conductive structure including a third element and a fourth element disposed under the third element; and a switch circuit disposed between the first conductive structure and the second conductive structure. As a first RF signal from a first external device is incident on the unit cell, a second RF signal having a first resonance frequency is reflected based on electrical paths formed respectively in the first element and the third element, and a third RF signal having a second resonance frequency different from the first resonance frequency is reflected based on electrical paths formed respectively in the second element and the fourth element.