DATA RETRANSMISSION METHOD, DEVICE AND SYSTEM

The present invention relates to the communications field and discloses a data retransmission method, a device, and a system, to resolve a prior-art problem that when a device transmits data by using an unlicensed carrier, data retransmission cannot be performed because the device needs to re-preemp...

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Bibliographic Details
Main Authors WANG, Da, LI, Xiaocui, WANG, Jian
Format Patent
LanguageEnglish
French
German
Published 27.05.2020
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Summary:The present invention relates to the communications field and discloses a data retransmission method, a device, and a system, to resolve a prior-art problem that when a device transmits data by using an unlicensed carrier, data retransmission cannot be performed because the device needs to re-preempt a channel. The specific solution is: transmitting, by a first device, data to a second device by using a first carrier, where the first carrier is an unlicensed carrier; retransmitting, by the first device, the data to the second device by using a second carrier, where the first carrier and the second carrier are different carriers; and sending, by the first device, control signaling to the second device, where the control signaling is used to indicate the data. The present invention is applied to data retransmission.
Bibliography:Application Number: EP20150888141