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    Apparatus and method for performing retransmission in wireless communication system
    91.
    发明授权
    Apparatus and method for performing retransmission in wireless communication system 有权

    公开(公告)号：US11563526B2

    公开(公告)日：2023-01-24

    申请号：US17055348

    申请日：2019-05-15

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Jeongho Yeo ,  Younsun Kim ,  Sungjin Park ,  Jinyoung Oh ,  Taehan Bae ,  Juho Lee

    IPC: H04L1/18 ,  H04L1/08

    Abstract: Disclosed is a 5th generation (5G) or a pre-5G communication system for supporting a data transmission rate higher than that of a 4th generation (4G) communication system such as long term evolution (LTE). An apparatus and a method for performing retransmission in a wireless communication system are provided. A method for operating a transmitting device in a wireless communication system, according to various embodiments of the present disclosure, comprises the steps of: transmitting a plurality of data code blocks (CBs) to at least one receiving device in an initial transmission step; receiving, from the at least one receiving device, feedback information including information for indicating the number of data CBs, from among the plurality of data CBs, for which decoding has failed; and transmitting the number of parity CBs, determined on the basis of the number of data CBs for which the decoding has failed, to the at least one receiving device in a retransmission step. Therefore, the resources required for retransmission can be reduced.

    Method and apparatus for channel access in unlicensed band in wireless communication system
    93.
    发明授权
    Method and apparatus for channel access in unlicensed band in wireless communication system 有权

    公开(公告)号：US11368273B2

    公开(公告)日：2022-06-21

    申请号：US16637558

    申请日：2018-08-07

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Jinyoung Oh ,  Sungjin Park ,  Jeongho Yeo ,  Heedon Gha ,  Taehan Bae

    IPC: H04L5/00 ,  H04W72/04

    Abstract: Disclosed are: a communication technique for merging, with IoT technology, a 5G communication system for supporting a data transmission rate higher than that of a 4G system; and a system therefor. The present disclosure can be applied to intelligent services (for example, smart home, smart building, smart city, smart car or connected car, healthcare, digital education, retail, security, and safety-related services, and the like) on the basis of 5G communication technology and an IoT-related technology. The present invention relates to a method and an apparatus for channel access in a wireless communication system operating in an unlicensed band. More particularly, disclosed are a method by which a node for transmitting a signal through an unlicensed band determines a channel occupation state of the unlicensed band, and a method for transmitting the signal to the unlicensed band according to the determined channel occupation state of the unlicensed band.

    Method and device for determining uplink data and control signal transmission timing in wireless communication system
    94.
    发明授权
    Method and device for determining uplink data and control signal transmission timing in wireless communication system 有权

    公开(公告)号：US11323229B2

    公开(公告)日：2022-05-03

    申请号：US16928539

    申请日：2020-07-14

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Jeongho Yeo ,  Jinyoung Oh ,  Heedon Gha ,  Taehan Bae

    IPC: H04L5/00 ,  H04L1/18 ,  H04W72/12 ,  H04L1/00

    Abstract: Methods and apparatuses are provided in which a radio resource control (RRC) message is transmitted to a terminal. A set of values for a timing between a physical downlink shared channel (PDSCH) and acknowledgement information is included in the RRC message, and the set of values is respectively associated with a set of numbers of a transmission time interval (TTI). First downlink control information (DCI) for a first PDSCH is transmitted to the terminal. A number of bits associated with one value in the set of values is included in the DCI. The first PDSCH is transmitted to the terminal. Acknowledgement information for the first PDSCH is received from the terminal, based on a transmission timing determined by using the RRC message and the number of bits in the DCI.

    DMRS port grouping method and apparatus for use in wireless cellular communication system
    96.
    发明授权
    DMRS port grouping method and apparatus for use in wireless cellular communication system 有权

    公开(公告)号：US11218241B2

    公开(公告)日：2022-01-04

    申请号：US16871639

    申请日：2020-05-11

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Cheolkyu Shin ,  Youngwoo Kwak ,  Hoondong Noh ,  Taehan Bae ,  Jeongho Yeo ,  Jinyoung Oh

    IPC: H04J13/12 ,  H04W76/27 ,  H04L1/18 ,  H04W72/04 ,  H04J13/00 ,  H04L5/00 ,  H04B7/0413

    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.
    A method of a terminal in a wireless communication system is provided. The method includes identifying demodulation reference signal (DMRS) type information and DMRS symbol length information, identifying port number information for receiving a DMRS and receiving the DMRS based on the DMRS type information, the DMRS symbol length information and port number information, wherein the port number information indicates a port number for the terminal in DMRS information including parameters for code division multiplexing (CDM) group information, offset information, frequency-domain orthogonal cover code (OCC) information, and time-domain OCC information corresponding respectively to multiple port numbers, and wherein the DMRS information is defined per DMRS type.

    Method and apparatus for transmitting downlink control information in wireless communication system
    98.
    发明授权
    Method and apparatus for transmitting downlink control information in wireless communication system 有权

    公开(公告)号：US11057825B2

    公开(公告)日：2021-07-06

    申请号：US16727485

    申请日：2019-12-26

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Taehyoung Kim ,  Youngbum Kim ,  Jinyoung Oh ,  Seunghoon Choi ,  Heedon Gha ,  Taehan Bae

    IPC: H04W48/12 ,  H04W72/04

    Abstract: The 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). A method of a user equipment is provided. The method includes identifying a first bandwidth part for a cell and a second bandwidth part for the cell through a radio resource control signaling, wherein each of the first bandwidth part and the second bandwidth part is defined with a corresponding subcarrier spacing and frequency domain location; identifying a first control resource set on the first bandwidth part and a second control resource set on the second bandwidth part through the radio resource control signaling; and acquiring second downlink control information for the second bandwidth part based on the first control resource set on the first bandwidth part being activated.

    METHOD OF PERFORMING CELL SELECTION AND RE-SELECTION USING PMAX PARAMETERS AND SYSTEM ADAPTED THERETO
    100.
    发明申请
    METHOD OF PERFORMING CELL SELECTION AND RE-SELECTION USING PMAX PARAMETERS AND SYSTEM ADAPTED THERETO 有权

    公开(公告)号：US20210076317A1

    公开(公告)日：2021-03-11

    申请号：US17102349

    申请日：2020-11-23

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Soenghun Kim ,  Sangbum Kim ,  Gert-Jan Van Lieshout ,  Jaehyuk Jang ,  Taehan Bae

    IPC: H04W48/16 ,  H04W48/20

    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. A cell selection/re-selection method and an apparatus adapted thereto is provided. The cell selection method of a terminal includes: receiving, from a base station, first maximum power information, PEMAX1 and second maximum power information, PEMAX2, related to maximum transmission power levels of the terminal on the uplink; calculating a compensation parameter, Pcompensation, related to uplink transmission power of the terminal, using the first maximum power information and the second maximum power information; calculating a cell selection reception level value, Srxlev, using the compensation parameter; and selecting a cell based on the calculated cell selection reception level value.

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