Methods and apparatus for determining guardband in a communication system

    公开(公告)号:US12177861B2

    公开(公告)日:2024-12-24

    申请号:US17567780

    申请日:2022-01-03

    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 base station and a terminal that perform communication using an unlicensed band may divide a bandwidth part into subbands and may perform a channel access procedure for the respective subbands. A method for configuring a size of the subband and a method for configuring start/end frequency locations of the configured subband in order to perform the channel access procedure more efficiently in a communication system having various bandwidth sizes and subcarrier spacings.

    Method and device for transmitting coded data generated by splitting transport blocks in wireless cellular communication system

    公开(公告)号:US12155479B2

    公开(公告)日:2024-11-26

    申请号:US18474820

    申请日:2023-09-26

    Abstract: A method performed by a terminal in a wireless communication system includes receiving, from a base station via a radio resource control (RRC) signaling, information indicating a number N of code block groups per transport block (TB), wherein a code block group comprises at least one code block, receiving, from the base station, control information scheduling data, receiving, from the base station, the data on a physical downlink shared channel (PDSCH) based on the control information, the data including code block groups of a TB, generating hybrid automatic repeat request (HARQ) feedback information for the code block groups of the TB, the code block groups of the TB being identified based on a number of code blocks (CBs) for the TB and the number N of code block groups per TB, and transmitting the HARQ feedback information to the base station, wherein a bit size of the transmitted HARQ feedback information is identical to the number N of the code block group per TB.

    Method and device for transmitting/receiving downlink control channel for wireless communication system

    公开(公告)号:US12137459B2

    公开(公告)日:2024-11-05

    申请号:US17260937

    申请日:2019-07-19

    Abstract: The present disclosure relates to a communication technique for converging IoT technology with a 5G communication system for supporting higher data transmission rates after 4G systems, and a system for same. The present invention discloses a method and device for efficiently transmitting control information for multiple pieces of data transmitted to a terminal in order to efficiently support cooperative communication. Specifically, a method for a terminal in a wireless communication system to receive downlink data includes steps for: detecting first downlink control information (DCI) scrambled by a cell-radio network temporary identifier (CRNTI); detecting second DCI scrambled by an RNTI for cooperative communication, when the first DCI has been detected; determining, when the second DCI has been detected, whether the second DCI is valid; and receiving, according to the first DCI and the second DCI, two or more pieces of downlink data when the second DCI has been determined to be valid.

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