US 11,856,603 B2
Sharing channel occupancy time across nodes of an integrated access backhaul network
Jianghong Luo, Skillman, NJ (US); Xiaoxia Zhang, San Diego, CA (US); Jing Sun, San Diego, CA (US); Navid Abedini, Somerset, NJ (US); Tao Luo, San Diego, CA (US); Luca Blessent, Whitehouse Station, NJ (US); and Junyi Li, Chester, NJ (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Oct. 27, 2020, as Appl. No. 17/081,880.
Claims priority of provisional application 63/030,194, filed on May 26, 2020.
Prior Publication US 2021/0378011 A1, Dec. 2, 2021
Int. Cl. H04W 74/08 (2009.01); H04W 88/14 (2009.01); H04W 76/15 (2018.01); H04L 45/00 (2022.01); H04W 72/23 (2023.01)
CPC H04W 74/0816 (2013.01) [H04L 45/20 (2013.01); H04W 72/23 (2023.01); H04W 76/15 (2018.02); H04W 88/14 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A method of wireless communication performed by a first integrated access backhaul (IAB) node, the method comprising:
receiving, from a second IAB node and for signal transmission by the first IAB node, a first uplink communication signal allowing the first IAB node to access a channel in an unlicensed 5G spectrum during a channel occupancy time (COT), the COT acquired by the second IAB node, and the first IAB node being a parent node to the second IAB node, wherein the first uplink communication signal is received in a first portion of the COT;
performing, by a mobile terminal (MT) of the first IAB node, a channel access procedure to communicate in a second portion of the COT; and
transmitting, in the second portion of the COT after the first portion, a second uplink communication signal to a third IAB node to allow the third IAB node to access the channel for communications with one or more user equipment (UE) devices in a third portion of the COT after the second portion of the COT, the third IAB node being a parent node to the first IAB node;
wherein the second uplink communication signal comprises information about a remaining amount of the COT and a type of channel access procedure the third IAB node is allowed to perform to access the third portion of the COT.