US 12,324,015 B2
Category 2 (CAT2) listen-before-transmit (LBT) operations for wireless communications
Jing Sun, San Diego, CA (US); Vinay Chande, San Diego, CA (US); Arumugam Chendamarai Kannan, San Diego, CA (US); Xiaoxia Zhang, San Diego, CA (US); and Aleksandar Damnjanovic, Del Mar, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Oct. 4, 2021, as Appl. No. 17/449,873.
Claims priority of provisional application 63/087,767, filed on Oct. 5, 2020.
Claims priority of provisional application 63/087,770, filed on Oct. 5, 2020.
Prior Publication US 2022/0110156 A1, Apr. 7, 2022
Int. Cl. H04W 24/08 (2009.01); H04W 24/10 (2009.01); H04W 72/044 (2023.01); H04W 74/00 (2009.01); H04W 74/0808 (2024.01); H04W 74/0816 (2024.01)
CPC H04W 74/0808 (2013.01) [H04W 24/08 (2013.01); H04W 24/10 (2013.01); H04W 72/0473 (2013.01); H04W 74/002 (2013.01); H04W 74/0816 (2013.01)] 30 Claims
OG exemplary drawing
 
1. An apparatus for wireless communication, the apparatus comprising:
a receiver configured to receive, at a user equipment (UE) from a base station, a listen-before-talk (LBT) configuration message indicating whether category 2 (Cat2) LBT operations are enabled or disabled for the UE and to receive, at the UE from the base station, a channel occupancy time (COT) message configuring the UE with a COT, the LBT configuration message including one or more bits configured to indicate, in accordance with the one or more bits having a first value, that the Cat2 LBT operations are enabled for the UE and further configured to indicate, in accordance with the one or more bits having a second value, that the Cat2 LBT operations are disabled for the UE; and
a transmitter configured to perform an uplink transmission based on an LBT operation, wherein the LBT operation is based on the LBT configuration message and is based further on the COT message.