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|1. (WO2018137206) DATA TRANSMISSION METHOD AND DEVICE BASED ON HALF-DUPLEX MODE|
|Applicants:||HUAWEI TECHNOLOGIES CO., LTD.
|Title:||DATA TRANSMISSION METHOD AND DEVICE BASED ON HALF-DUPLEX MODE|
Embodiments of the present invention provide a data transmission method and device based on a half-duplex mode and relate to the technical field of communications. The method comprises : when a machine-type communication physical downlink control channel (MPDCCH) transmitted by a base station is received, determining, according to a first field included in downlink control information (DCI) of the MPDCCH, whether a hybrid automatic repeat request acknowledgement (HARQ-ACK) bundling function is currently enabled; when the HARQ-ACK bundling function is currently enabled, determining that a second field but not a third field exists in the DCI; and when a PDSCH transmitted by the base station and corresponding to the DCI is received, feedback results of each bundle in a current transmission period are respectively transmitted to the base station on the basis of the HARQ-ACK bundling information indicated in the second field so as to implement data transmission with the base station. The PDSCH belongs to any bundle of multiple bundles transmitted in a current transmission period, and the feedback result is ACK or negative ACK (NACK). The present application increases data transmission efficiency and reliability.