METHOD FOR TRANSMITTING AND RECEIVING UPLINK DATA CHANNEL, AND APPARATUS THEREOF

    公开(公告)号:US20190082456A1

    公开(公告)日:2019-03-14

    申请号:US16124368

    申请日:2018-09-07

    Abstract: A method of transmitting a grant-free uplink data channel (physical uplink shared channel (PUSCH)) (GF-PUSCH), performed in a terminal, includes determining a resource (GF-PUSCH resource) for transmission of the GF-PUSCH and an identifier (DM-RS ID) of a demodulation reference signal (DM-RS) included in the GF-PUSCH; when an uplink traffic arrives, encoding the uplink traffic into a transport block (TB); generating the DM-RS based on the DM-RS ID, and transmitting the GF-PUSCH including the TB and the DM-RS to a base station through the GF-PUSCH resource; and receiving, from the base station, a group hybrid automatic repeat request acknowledgement (HARQ-ACK) information in which ACK or negative acknowledgement (ACK/NACK) information for the GF-PUSCH of the terminal and ACK/NACK information for at least one GF-PUSCH of at least one other terminal are multiplexed, through a downlink control information (DCI).

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