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Method for adjusting contention window size in consideration of priority class in wireless connection system supporting unlicensed band and apparatus for supporting the same
Method for adjusting contention window size in consideration of priority class in wireless connection system supporting unlicensed band and apparatus for supporting the same
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机译:在支持免许可频段的无线连接系统中考虑优先级调整竞争窗口大小的方法和支持该方法的设备
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摘要
The present invention relates to a wireless access system supporting an unlicensed band, various methods for adjusting a contention window size, methods for performing a carrier sensing process in a single engine and a multi-engine, and an apparatus supporting the same. As one embodiment of the invention, a method for adjusting a contention window size (CWS) in a wireless access system supporting an unlicensed band may comprise: a step of setting a contention window size (CWS) necessary for performing a channel access process for each of priority classes; a step of performing a channel access process for a particular priority class in a channel in an unlicensed band on the basis of the set CWS; a step of performing a downlink transmission related to the particular priority class if it is determined that the channel in the unlicensed band is in an idle state as a result of the channel access process; and a step of making adjustments for all CWS' of priority classes if a triggering event, which relates to a downlink transmission and increases or reduces the CWS for the particular priority class, occurs.
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