公开(公告)号：US20220400043A1

公开(公告)日：2022-12-15

申请号：US17776785

申请日：2020-11-11

Applicant: Samsung Electronics Co., Ltd. ,  Industry-Academic Cooperation Foundation,Yonsei University

Inventor： Chaehee LIM ,  Sooyong CHOI ,  Gyuyeol KONG ,  Seongbae HAN ,  Dongheon LEE

IPC: H04L27/26 ,  H04L5/00 ,  H04W72/12

Abstract: The disclosure relates to a wireless communication system, and relates to a method and apparatus for scheduling a plurality of user equipments (UEs) by considering a frequency selectivity. A method, performed by a base station, for transmitting or receiving data in a wireless communication system according to an embodiment includes determining a UE candidate group set based on channel state information for channels of a plurality of carriers, determining an offset used to adjust the number of UEs of the UE candidate group set, based on frequency selectivity information between a representative channel selected from among the channels of the plurality of carriers and other channels, based on the offset, determining a plurality of UEs to which data is to be transmitted, and transmitting the data to the determined plurality of UEs.

公开(公告)号：US20240250721A1

公开(公告)日：2024-07-25

申请号：US18597227

申请日：2024-03-06

Applicant: Samsung Electronics Co., Ltd. ,  UIF (University Industry Foundation), Yonsei University

Inventor： Chaehee LIM ,  Soo Yong CHOI ,  Dong Heon LEE ,  Seong Yeop JOUNG

IPC: H04B7/0417 ,  H04B7/0452 ,  H04B7/0456 ,  H04B7/06

CPC classification number: H04B7/0417 ,  H04B7/0452 ,  H04B7/0486 ,  H04B7/0626 ,  H04B7/063

Abstract: A base station is provided. The base station includes a transceiver configured to exchange data with an external device, memory storing one or more computer programs, and one or more processors communicatively coupled to the transceiver and the memory, wherein the one or more computer programs include computer-executable instructions that, when executed by the one or more processors, cause the base station to generate a channel state indicator-reference signal (CSI-RS) to be transmitted to a user terminal through a plurality of antennas of the base station, transmit a test signal generated by applying an initial port virtualization matrix to the CSI-RS to the user terminal through a transceiver, receive, from the user terminal, rank information for channels to which the initial port virtualization matrix is applied and information about a target precoding matrix for the channels, obtain partial channel information on the basis of an sounding reference signal (SRS) received from the user terminal, and generate a target port virtualization matrix on the basis of the rank information, the target precoding matrix, and the partial channel information.

公开(公告)号：US20200221348A1

公开(公告)日：2020-07-09

申请号：US16633949

申请日：2018-07-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Chaehee LIM ,  Yongok KIM ,  Chanhong KIM ,  Jeehwan NOH ,  Min SAGONG ,  Yeohun YUN

IPC: H04W28/20 ,  H04W72/04 ,  H04L5/00 ,  H04W76/27 ,  H04L29/12

Abstract: The disclosure relates to a pre-5th-generation (5G) or 5G communication system to be provided for supporting higher data rates beyond 4th-generation (4G) communication system such as long term evolution (LTE). Provided are an apparatus and a method for determining a bandwidth in a wireless communication system. A method of operating a base station (BS) in a wireless communication system includes: receiving information on a bandwidth supporting capability of a terminal from the terminal; transmitting information on at least one candidate bandwidth corresponding to the bandwidth supporting capability to the terminal; and transmitting information indicating a utilization bandwidth of the terminal among the at least one candidate bandwidth to the terminal. Accordingly, it is possible to reduce power consumption of the terminal and overhead for a bandwidth indication.