METHOD AND DEVICE FOR CHANNEL ACCESS IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20210298072A1

    公开(公告)日:2021-09-23

    申请号:US17250602

    申请日:2019-08-09

    Abstract: A method of performing a channel access procedure of a terminal in an unlicensed band, includes: receiving, from a base station, information about a type of the channel access procedure in the unlicensed band; when the channel access procedure is a frame-based channel access procedure, receiving, from the base station, frame-based channel access procedure configuration information including at least one of fixed frame period (FFP) information, channel occupancy time (COT) information in an FFP, or fixed frame start slot offset information; determining whether the base station is occupying a channel, based on the received frame-based channel access procedure configuration information; and when it is determined that the base station is occupying the channel, transmitting and receiving a signal to and from the base station.

    METHOD AND APPARATUS FOR ALLOCATING FREQUENCY RESOURCE IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20210105774A1

    公开(公告)日:2021-04-08

    申请号:US17036514

    申请日:2020-09-29

    Abstract: A method, performed by a user equipment (UE), in a wireless communication system is provided. The method includes receiving information on a number of physical resource blocks (PRBs), determining a valid number of PRBs based on the information in case that a transform precoding is configured, and transmitting a physical uplink shared channel (PUSCH) based on the valid number of PRBs, wherein in case that the number of PRBs based on the information does not satisfy a pre-defined rule associated with the transform precoding, the valid number of PRBs corresponds to the largest integer satisfying the pre-defined rule associated with the transform precoding which is not greater than the number of PRBs based on the information.

    METHOD AND DEVICE FOR TRANSMITTING OR RECEIVING GROUPCAST FEEDBACK IN WIRELESS CELLULAR COMMUNICATION SYSTEM

    公开(公告)号:US20240121034A1

    公开(公告)日:2024-04-11

    申请号:US18529885

    申请日:2023-12-05

    CPC classification number: H04L1/1854 H04L1/1812 H04W28/04

    Abstract: The disclosure relates to a communication method for converging an IoT technology with a 5G communication system for supporting a higher data transfer rate beyond the 4G system; and a system therefor. The disclosure can be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail business, security and safety services, etc.), based on 5G communication technologies and IoT-related technologies. A method and terminal are provided. The method includes receiving first sidelink control information (SCI) and first data corresponding to the first SCI, the first SCI including first priority information, receiving second SCI and second data corresponding to the second SCI, the second SCI including second priority information, identifying whether first feedback information associated with the first data or second feedback information associated with the second data is transmitted based on the first priority information or the second priority information when a resource for the first feedback information and a resource for the second feedback information are overlapped, and transmitting one of the first feedback information or the second feedback information which is associated with higher priority.

    METHOD AND DEVICE FOR ALLOCATING RESOURCE IN V2X SYSTEM

    公开(公告)号:US20230020105A1

    公开(公告)日:2023-01-19

    申请号:US17778244

    申请日:2020-11-24

    Abstract: The disclosure relates to a method and apparatus by which a transmission terminal allocates resources in a vehicle-to-everything (V2X) system. An operating method of a terminal in a wireless communication system may include identifying a first candidate resource set for sidelink communication in a first resource selection window, through sensing based on first sidelink control information (SCI) received in a first sensing window, identifying a second candidate resource set for sidelink communication in a second resource selection window, through sensing based on second SCI received in a second sensing window, determining, based on the second SCI, whether to perform pre-emption or re-evaluation for a first resource, and when it is determined to perform the pre-emption or the re-evaluation for the first resource, triggering re-selection of resources for sidelink communication, and reporting the first resource for which the pre-emption or the re-evaluation has been performed, and the second candidate resource set to a higher layer of the terminal.

    METHOD AND APPARATUS FOR SUBBAND BASED CHANNEL ACCESS IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20220408416A1

    公开(公告)日:2022-12-22

    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.

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