Method and apparatus for indicating aperiodic CSI reporting time in wireless communication system

    公开(公告)号:US11323902B2

    公开(公告)日:2022-05-03

    申请号:US16100869

    申请日:2018-08-10

    Abstract: A method and an apparatus for indicating the time of aperiodic channel status information (CSI) report in a wireless communication system are provided. The method for a user equipment (UE) configured to operate in a wireless communication system includes receiving configuration information about a resource of a reference signal from a base station, receiving, from the base station, feedback configuration information set based on the reference signal, receiving, via a downlink control information (DCI), a feedback transmission timing and an aperiodic CSI trigger transferred in the same slot as the reference signal, estimating an aperiodic channel status between the UE and the base station (BS) based on the reference signal, generating feedback information based on the estimated aperiodic channel status, and transmitting the feedback information to the base station based on the feedback transmission timing.

    METHOD AND APPARATUS FOR CHANNEL SENSING IN COMMUNICATION SYSTEM

    公开(公告)号:US20170150524A1

    公开(公告)日:2017-05-25

    申请号:US15361301

    申请日:2016-11-25

    CPC classification number: H04W74/0808 H04W72/0446 H04W88/02 H04W88/08

    Abstract: Provided herein are communication schemes for combining 5G communication systems with IoT technology to support higher data transmission rate as post-4G systems and systems for the same. The present disclosure may be used in intelligent services (e.g., smart home, smart building, smart city, smart car, connected car, health-care, digital education, retail business, security and safety-related services) based on the 5G communication technology and IoT-related techniques. According to an embodiment of the present disclosure, a method for sensing a channel by a base station in a communication system comprises setting a channel sensing interval for sensing a channel available on an unlicensed band, based on a first start time when the base station starts a signal transmission and the set channel sensing interval, setting a second start time when a channel sensing operation starts, and performing the channel sensing operation during the channel sensing interval from the set second start time.

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