METHOD FOR REPORTING CHANNEL QUALITY INFORMATION IN TDD TYPE WIRELESS COMMUNICATION SYSTEM, AND DEVICE THEREFOR

    公开(公告)号:US20200052862A1

    公开(公告)日:2020-02-13

    申请号:US16654619

    申请日:2019-10-16

    Abstract: Disclosed is a method by which a terminal reports channel quality information (CQI) to a base station in a multi-antenna-based wireless communication system. Particularly, the method comprises the steps of: receiving, through an upper layer, the reference signal configuration defined by P number of antenna ports; receiving, through M number of antenna ports, reference signals from the base station; grouping the P number of antenna ports into antenna port groups formed of the M number of antenna ports; calculating CQIs by using the reference signal corresponding to each of the antenna port groups on the basis of the assumption that predefined precoders are applied to the reference signals; and reporting, to the base station, N number of CQIs among the calculated CQIs.

    METHOD FOR TRANSMITTING SIGNAL FOR MTC AND APPARATUS FOR SAME

    公开(公告)号:US20200037369A1

    公开(公告)日:2020-01-30

    申请号:US16593632

    申请日:2019-10-04

    Abstract: A method for performing a random access procedure in a wireless communication system supporting coverage enhancement, the method including performed by a user equipment (UE), determining a coverage enhancement level required for the UE; repeatedly transmitting a physical random access channel (PRACH) signal based on the determined coverage enhancement level; and monitoring a physical downlink control channel (PDCCH) candidates for a random access response (RAR) in response to the PRACH signal, wherein the PDCCH candidates for the RAR are determined based on the coverage enhancement level required for the UE.

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