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    Method and apparatus for performing random access in wireless communication system
    65.
    发明授权
    Method and apparatus for performing random access in wireless communication system 有权

    公开(公告)号：US11856612B2

    公开(公告)日：2023-12-26

    申请号：US17418108

    申请日：2020-02-12

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Jonghyun Bang ,  Jinyoung Oh ,  Hyunseok Ryu ,  Sungjin Park ,  Cheolkyu Shin ,  Jeongho Yeo

    IPC: H04W74/04 ,  H04W74/08

    CPC classification number: H04W74/0833

    Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present invention relates to a method and an apparatus for performing random access in a wireless communication system. More specifically, proposed is a method of, when a terminal intends to perform random access through multiple PRACH preamble transmission in an unlicensed band, determining whether to change or reset a CP length of a channel access procedure gap or a PRACH preamble according to the number of multiple PRACH preamble transmissions.

    Apparatus and method for controlling congestion in wireless communication system
    67.
    发明授权
    Apparatus and method for controlling congestion in wireless communication system 有权

    公开(公告)号：US11812419B2

    公开(公告)日：2023-11-07

    申请号：US17739692

    申请日：2022-05-09

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Cheolkyu Shin ,  Hyunseok Ryu ,  Jonghyun Bang ,  Jeongho Yeo

    IPC: H04W72/0453 ,  H04W24/08 ,  H04W72/20 ,  H04W84/04 ,  H04W88/04 ,  H04W92/18

    CPC classification number: H04W72/0453 ,  H04W24/08 ,  H04W72/20 ,  H04W84/042 ,  H04W88/04 ,  H04W92/18

    Abstract: The present 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). The disclosure is for controlling congestion of a channel in a wireless communication system According to an embodiment of the present disclosure, a method performed by a terminal in a wireless communication system comprises determining a plurality of granted transmission resources for a sidelink communication, performing a transmission or a retransmission using at least one transmission resource among the plurality of granted transmission resources, receiving an acknowledgement (ACK) for the transmission or the retransmission, in response to the ACK, releasing one or more transmission resources among the plurality of granted transmission resources, measuring a channel occupancy ratio (CR) from transmission resources other than the released one or more transmission resources from the plurality of granted transmission resources, and transmitting a physical sidelink shared channel (PSSCH) to satisfy a condition that the measured CR does not exceed a configured CR limit so that a congestion control is performed.

    Method and device for transmitting reference signal, control signal, and data in mobile communication system
    69.
    发明授权
    Method and device for transmitting reference signal, control signal, and data in mobile communication system 有权

    公开(公告)号：US11805433B2

    公开(公告)日：2023-10-31

    申请号：US16334596

    申请日：2017-09-18

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Youngwoo Kwak ,  Hoondong Noh ,  Cheolkyu Shin

    IPC: H04W24/10 ,  H04B17/318 ,  H04L5/00 ,  H04L25/02 ,  H04L27/26

    CPC classification number: H04W24/10 ,  H04B17/318 ,  H04L5/0057 ,  H04L25/0224 ,  H04L27/261

    Abstract: Disclosed are a communication technique for merging, with an IoT technology, a 5G communication system for supporting a data transmission rate higher than that of a 4G system, and a system therefor. The disclosure can be applied to intelligent services (for example, smart home, smart building, smart city, smart car or connected car, health care, digital education, retail, security and safety related services, and the like) on the basis of 5G communication technology and IoT related technology. A new radio access technology (NR) system, which is novel 5G communication, is designed such that various services can be freely multiplexed in time and frequency resources, thereby enabling channel state information based on an aperiodic CSI-RS or a synchronization signal to be transmitted and received. According to the present invention, a base station in a wireless communication system transmits channel state information reference signal (CSI-RS) configuration information to a terminal, transmits channel state information feedback configuration information to the terminal, transmits CSI-RS trigger information to the terminal, aperiodically transmits a CSI-RS to the terminal according to the CSI-RS trigger information, and can receive, from the terminal, channel state information generated on the basis of the transmitted CSI-RS, wherein the CSI-RS is configured according to the CSI-RS configuration information, and at least a part of the configured CSI-RS can be transmitted by the CSI-RS trigger information.

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