Data transmission method, data transmission system, control method, control system, and device
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United States of America Patent
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Jun 25, 2019
Grant Date -
Aug 24, 2017
app pub date -
May 8, 2017
filing date -
Nov 26, 2014
priority date (Note) -
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Abstract
A method of configuring a channel detection sub-frame for a terminal and a device with a base station function that includes setting, in a frame structure in a time division duplex mode, a downlink channel detection sub-frame used for periodically detecting whether a downlink channel of an unlicensed frequency band is idle and sending an uplink channel detection sub-frame configuration command to a terminal according to a configuration mode of the downlink channel detection sub-frame. According to the uplink channel detection sub-frame configuration command, an uplink channel detection sub-frame is set for periodically detecting whether an uplink channel of the unlicensed frequency band is idle. The uplink channel detection sub-frame is located in the same sub-frame as a downlink channel detection sub-frame.
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