US 12,082,240 B2
Uplink operation for listen before talk
Esa Tiirola, Kempele (FI); Kari Hooli, Oulu (FI); Timo Lunttila, Espoo (FI); and Karol Schober, Helsinki (FI)
Assigned to Nokia Technologies Oy, Espoo (FI)
Appl. No. 17/417,801
Filed by Nokia Technologies Oy, Espoo (FI)
PCT Filed Dec. 31, 2019, PCT No. PCT/FI2019/050934
§ 371(c)(1), (2) Date Jun. 24, 2021,
PCT Pub. No. WO2020/144399, PCT Pub. Date Jul. 16, 2020.
Claims priority of provisional application 62/805,528, filed on Feb. 14, 2019.
Claims priority of provisional application 62/790,123, filed on Jan. 9, 2019.
Prior Publication US 2022/0078841 A1, Mar. 10, 2022
Int. Cl. H04W 74/00 (2009.01); H04W 74/0808 (2024.01)
CPC H04W 74/006 (2013.01) [H04W 74/0808 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method, comprising:
identifying, by a network node, a need to perform an uplink transmission within a channel occupancy time of radio channel,
wherein the network node is scheduled for performing an uplink transmission, and
wherein the identifying comprises identifying an energy level of a gap of channel occupancy time of radio when indicated in downlink control information;
based on the identifying, setting a duration of a transmission in the channel occupancy time of radio channel,
wherein the setting comprises identifying, based on an energy level of the gap in the channel occupancy time of radio channel being one of above or below a threshold, whether the gap is occupied or not, and wherein based on identifying that the energy level of the gap being above the threshold the network node performs the uplink transmission using the at least one transmission time interval within a first time duration, and
wherein based on identifying that the energy level of the gap being below the threshold the network node performs the uplink transmission using all scheduled transmission time intervals in a time duration exceeding the first time duration; and
performing the uplink transmission based on the set duration of the transmission,
wherein the downlink control information comprises at least one information element indicating whether or not the network node should perform identifying of the energy level of the gap in the channel occupancy time of radio.