METHOD AND DEVICE FOR CONFIGURING TRANSMISSION OPPORTUNITY PERIOD IN WIRELESS ACCESS SYSTEM SUPPORTING UNLICENSED BAND
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Abstract
The present disclosure relates to a wireless access system supporting an unlicensed band, and provides a method for configuring a transmission opportunity period (TxOP) and devices for supporting the same. The method for configuring a TxOP in a wireless access system supporting an unlicensed band, according to one embodiment of the present disclosure, can comprise the steps of: performing a carrier sensing step for checking whether a secondary cell (SCell) constituted in an unlicensed band is in an idle state; transmitting a reservation signal for a predetermined amount of time if the SCell is in the idle state; and configuring a TxOP in the SCell. At this time, a start point of a first subframe (SF) included in the TxOP can be matched to a subframe, a slot or symbol boundary of a primary cell (PCell) constituted in a licensed band.
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Citations
22 Claims
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1-12. -12. (canceled)
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13. A method for performing a downlink transmission in a wireless access system supporting an unlicensed band, the method comprising:
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performing a carrier sensing procedure for checking whether a secondary cell (Scell) configured in the unlicensed band is idle or not; and performing the downlink transmission during a downlink transmission duration after the Scell has been checked as the idle, wherein the downlink transmission duration is configured with one or more consecutive subframes (SFs), wherein a last SF of the downlink transmission duration is a full SF or a small SF which is smaller than the full SF, and wherein the small SF is configured according to one of DwPTS (Downlink Pilot Time Slot) configurations. - View Dependent Claims (14, 15, 16, 17)
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18. An enhanced Node B (eNB) for performing a downlink transmission in a wireless access system supporting an unlicensed band, the eNB comprising:
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a receiver; a transmitter; and a processor supporting the downlink transmission, wherein the processor is configured to; perform, by controlling the receiver, a carrier sensing procedure for checking whether a secondary cell (Scell) configured in the unlicensed band is idle or not; and perform, by controlling the transmitter, the downlink transmission during a downlink transmission duration after the Scell has been checked as the idle, wherein the downlink transmission duration is configured with one or more consecutive subframes (SFs), wherein a last SF of the downlink transmission duration is a full SF or a small SF which is smaller than the full SF, and wherein the small SF is configured according to one of DwPTS (Downlink Pilot Time Slot) configurations. - View Dependent Claims (19, 20, 21, 22)
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Specification