LISTEN-BEFORE-TALK TECHNIQUES FOR UPLINK TRANSMISSIONS
First Claim
1. A method for wireless communication, comprising:
- receiving an uplink grant identifying uplink resources for an uplink transmission; and
identifying a listen-before-talk (LBT) scheme for initiating the uplink transmission based at least in part on information received in the uplink grant.
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Accused Products
Abstract
Techniques for performing listen before talk (LBT) channel contention procedures in a shared radio frequency spectrum band are provided. The LBT techniques may include a shortened LBT procedure that may be selected if a base station has reserved a shared channel for a duration of expected user equipment (UE) uplink transmissions, and a full LBT procedure that may be selected if the base station has not reserved the channel for the duration of expected UE uplink transmissions. The shortened LBT procedure may include detecting energy levels of the channel for a relatively short time period relative to the full LBT procedure. The shortened LBT procedure may be selected if a time period between a UE receiving a grant of uplink resources and the beginning of the uplink resources is less than a threshold time value.
97 Citations
30 Claims
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1. A method for wireless communication, comprising:
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receiving an uplink grant identifying uplink resources for an uplink transmission; and identifying a listen-before-talk (LBT) scheme for initiating the uplink transmission based at least in part on information received in the uplink grant. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. An apparatus for wireless communication, comprising:
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means for receiving an uplink grant identifying uplink resources for an uplink transmission; and means for identifying a listen-before-talk (LBT) scheme for initiating the uplink transmission based at least in part on information received in the uplink grant. - View Dependent Claims (21, 22, 23)
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24. An apparatus for wireless communication, comprising:
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a processor; memory in electronic communication with the processor; and instructions stored in the memory and operable, when executed by the processor, to cause the apparatus to; receive an uplink grant identifying uplink resources for an uplink transmission; and identify a listen-before-talk (LBT) scheme for initiating the uplink transmission based at least in part on information received in the uplink. - View Dependent Claims (25, 26, 27)
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28. A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable to:
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receive an uplink grant identifying uplink resources for an uplink transmission; and identify a listen-before-talk (LBT) scheme for initiating the uplink transmission based at least in part on information received in the uplink grant and the uplink resources for the uplink transmission. - View Dependent Claims (29, 30)
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Specification