Method and apparatus for performing listen before talk (LBT) for wireless communication in unlicensed band
AssigneeKt Corporation
InventorKyujin Park
Life of this patent
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Abstract
Provided are a method and apparatus for performing listen before talk (LBT) by a terminal for wireless communication in an unlicensed band. The method may include: determining an LBT scheme for transmitting an uplink signal in an unlicensed band, among a plurality of LBT schemes distinguished by at least one of whether to perform LBT, whether to perform random back off, and a random back-off time; and transmitting an uplink signal in an unlicensed band according to the determined LBT scheme.
Claims6
A method of a user equipment (UE) for performing Listen Before Talk (LBT) for wireless communications over an unlicensed band, the method comprising:
- determining an LBT scheme from a plurality of LBT schemes for transmitting an uplink (UL) signal over the unlicensed band;
- performing the LBT according to the determined LBT scheme;
- and
- transmitting the UL signal over the unlicensed band after performing the LBT,
- wherein the LBT scheme is determined in association with timing gap information from a plurality of timing gap information between a transmission of a downlink (DL) signal of a base station and a transmission of the UL signal of the UE, and
- wherein each of the plurality of timing gap information corresponds to each of the plurality of LBT schemes to perform the LBT.
A user equipment (UE) performing Listen Before Talk (LBT) for wireless communications over an unlicensed band, the UE comprising:
- a controller configured to determine an LBT scheme from a plurality of LBT schemes for transmitting an uplink (UL) signal over the unlicensed band, and perform the LBT according to the determined LBT scheme;
- and
- a transmitter configured to transmit the UL signal over the unlicensed band after performing the LBT,
- wherein the LBT scheme is determined in association with timing gap information from a plurality of timing gap information between a transmission of a downlink (DL) signal of a base station and a transmission of the UL signal of the UE, and
- wherein each of the plurality of timing gap information corresponds to each of the plurality of LBT schemes to perform the LBT.
Dependencies are inferred from the claim text.