Method and apparatus for transmitting/receiving wireless signal in wireless communication system

    公开(公告)号:US11013023B2

    公开(公告)日:2021-05-18

    申请号:US16678581

    申请日:2019-11-08

    Abstract: A wireless communication system is disclosed. More particularly, disclosed herein are a method including receiving downlink scheduling information on a PDCCH, the downlink scheduling information comprising resource indication information (RI), selecting a first PUCCH resource set from among a plurality of PUCCH resource sets based on a size of the control information, and transmitting the control information using a PUCCH resource corresponding to the RI in the first PUCCH resource set, wherein, when a control information size supported by the first PUCCH resource set is less than or equal to X (>=1) bits, the PUCCH resource is determined using one of a first scheme and a second scheme, and wherein, when the control information size supported by the first PUCCH resource set is greater than X bits, the PUCCH resource is determined using only the second scheme, and an apparatus therefor.

    METHOD AND APPARATUS FOR TRANSMITTING DUPLICATED MAC PDU IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20210127410A1

    公开(公告)日:2021-04-29

    申请号:US16927148

    申请日:2020-07-13

    Abstract: A method for transmitting a medium access control (MAC) protocol data unit (PDU) by a user equipment (UE) in a wireless communication system is disclosed. The method comprises steps of receiving information about a first grant and a second grant; generating the MAC PDU for the first grant; storing the MAC PDU in a first Hybrid automatic repeat request (HARQ) buffer associated with the first grant and a second HARQ buffer associated with the second grant; performing listen before talk (LBT) procedure for the first grant and the second grant; and transmitting the MAC PDU on a grant for which the LBT succeeds firstly among the first grant and the second grant.

    Method for transmitting HARQ ACK/NACK signal in NB IoT

    公开(公告)号:US10965430B2

    公开(公告)日:2021-03-30

    申请号:US16347177

    申请日:2017-10-26

    Abstract: A disclosure of the present specification provides a method for transmitting a hybrid automatic repeat request (HARQ) ACK/NACK signal in a narrowband Internet of things (NB-IoT) communication. The method may comprise a step of modulating at least one of a first and a second HARQ ACK/NACK signal by two HARQ processes. The step of modulating may comprise a step of mapping at least one of the first and the second HARQ ACK/NACK signal onto a constellation having a quadrature phase shift keying (QPSK) form. The first HARQ ACK/NACK signal may be a signal generated by a first HARQ process for a first downlink data through a first narrowband physical downlink shared channel (NPDSCH). The second HARQ ACK/NACK signal may be a signal generated by a second HARQ process for a second downlink data through a second NPDSCH.

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