CHANNEL RESERVATION TRANSMISSION SCHEMES IN SHARED RADIO FREQUENCY SPECTRUM
First Claim
1. A method for wireless communication, comprising:
- performing a listen before talk (LBT) procedure to identify that a channel in a shared radio frequency spectrum band is available for a first transmission;
identifying a time duration that the channel is to be occupied by the first transmission;
generating a channel reservation signal having a payload that indicates the time duration; and
transmitting the channel reservation signal.
1 Assignment
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Accused Products
Abstract
Methods, systems, and devices for wireless communication are described for a channel reservation signal that may be transmitted upon gaining contention-based access to a channel in a shared radio frequency spectrum. The channel reservation signal may include a channel reservation preamble and a channel reservation payload. The channel reservation payload may be formatted with other control channel information transmitted by the transmitter, such as downlink control information (DCI), and aligned with a transmission boundary of the other control channel information. When deployed on a shared medium, a downlink control channel may carry an extra trigger field that may schedule a receiving UE to transmit its own channel reservation signal within an uplink transmission burst.
21 Citations
30 Claims
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1. A method for wireless communication, comprising:
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performing a listen before talk (LBT) procedure to identify that a channel in a shared radio frequency spectrum band is available for a first transmission; identifying a time duration that the channel is to be occupied by the first transmission; generating a channel reservation signal having a payload that indicates the time duration; and transmitting the channel reservation signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for wireless communication, comprising:
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identifying that a base station is transmitting a first transmission on a channel in a shared radio frequency spectrum band; receiving a channel reservation signal from the base station; and identifying a time duration that the channel is to be occupied by the first transmission based at least in part on a payload of the channel reservation signal. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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21. 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; perform a listen before talk (LBT) procedure to identify that a channel in a shared radio frequency spectrum band is available for a first transmission; identify a time duration that the channel is to be occupied by the first transmission; generate a channel reservation signal having a payload that indicates the time duration; and transmit the channel reservation signal. - View Dependent Claims (22, 23, 24, 25)
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26. 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; identify that a base station is transmitting a first transmission on a channel in a shared radio frequency spectrum band; receive a channel reservation signal from the base station; and identify a time duration that the channel is to be occupied by the first transmission based at least in part on a payload of the channel reservation signal. - View Dependent Claims (27, 28, 29, 30)
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Specification