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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