公开(公告)号：US20240137887A1

公开(公告)日：2024-04-25

申请号：US18476788

申请日：2023-09-28

申请人： Samsung Electronics Co., Ltd.

发明人： Woojae JEONG ,  Donggu KIM ,  Seunghyun LEE ,  Jungsoo JUNG

IPC分类号： H04W56/00 ,  H04B7/04

CPC分类号： H04W56/0045 ,  H04B7/04013

摘要： The present disclosure relates to a fifth generation (5G) communication system or a sixth generation (6G) communication system for supporting higher data rates beyond a 4G communication system such as long term evolution (LTE). In a wireless communication system, a method performed by a base station includes identifying a delay time caused by a radio unit (RU) buffer, determining an RIS offset value for synchronization of signals transmitted to a reconfigurable intelligent surface (RIS), based on the delay time caused by the RU buffer, transmitting, to the RIS, a first signal to be transmitted to a terminal through a reflection plane of the RIS at a first time point, and transmitting, to the RIS, a second signal for controlling a reflection pattern of the RIS at a second time point to which the RIS offset value is applied.

公开(公告)号：US20240129870A1

公开(公告)日：2024-04-18

申请号：US18110122

申请日：2023-02-15

申请人： Samsung Electronics Co., Ltd.

发明人： Donggu KIM ,  Woojae JEONG ,  Seunghyun LEE ,  Jungsoo JUNG

IPC分类号： H04W56/00 ,  H04B7/06 ,  H04J13/00

CPC分类号： H04W56/0015 ,  H04B7/0617 ,  H04J13/0062

摘要： Methods and apparatuses are provided in which a slot is generated including a symbol and a synchronization signal, which is transmitted through the symbol. The slot is transmitted to a reconfigurable intelligent surface (RIS) and a user equipment (UE). The symbol is used to determine an operation to be performed by the UE during a predetermined time period including the slot. The slot is transmitted to the UE through beams formed according to a first RIS pattern. A result of measuring each beam based on the beams is received from the UE. A second RIS pattern is determined for transmitting data based on the result of measuring each beam. A signal for controlling the first RIS pattern based on the second RIS pattern is transmitted to the RIS. A data signal is transmitted to the UE through the RIS. The second RIS pattern is applied to the RIS.

公开(公告)号：US20230379913A1

公开(公告)日：2023-11-23

申请号：US18320140

申请日：2023-05-18

申请人： Samsung Electronics Co., Ltd.

发明人： Donggu KIM ,  Woojae JEONG ,  Seunghyun LEE ,  Hanjin KIM ,  Juho LEE ,  Jungsoo JUNG

IPC分类号： H04W72/20

CPC分类号： H04W72/20

摘要： The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate beyond a 4th generation (4G) communication system, such as long term evolution (LTE). The disclosure relates to a method performed by a base station in a wireless communication system, which may include: transmitting a radio resource control (RRC) message including reconfigurable intelligence surface (RIS) codebook configuration information to an RIS controller; determining a format of RIS control information based on the number of RIS codeword indexes; generating the RIS control information based on the determined format; and transmitting the generated RIS control information to the RIS controller.