US 12,323,954 B2
Method and device for operation of IAB node in situation in which multiple parent nodes are connected to single IAB node
Hyangsun You, Seoul (KR); Hyunsoo Ko, Seoul (KR); Joonkui Ahn, Seoul (KR); and Haewook Park, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/905,378
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Mar. 16, 2021, PCT No. PCT/KR2021/003234
§ 371(c)(1), (2) Date Aug. 31, 2022,
PCT Pub. No. WO2021/187863, PCT Pub. Date Sep. 23, 2021.
Claims priority of application No. 10-2020-0031800 (KR), filed on Mar. 16, 2020; and application No. 10-2020-0038148 (KR), filed on Mar. 30, 2020.
Prior Publication US 2023/0126621 A1, Apr. 27, 2023
Int. Cl. H04W 72/044 (2023.01); H04W 36/18 (2009.01); H04W 84/04 (2009.01)
CPC H04W 72/044 (2013.01) [H04W 36/185 (2023.05); H04W 84/047 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method, comprising:
receiving, by a first parent distributed unit (DU), a DU resource configuration message; and
using, by the first parent DU, information in the DU resource configuration message for resource coordination,
wherein the DU resource configuration message comprises DU configuration for a second parent DU,
wherein the DU configuration for the second parent DU comprises ‘Hard Soft NotAvailable’ (HSNA) configuration which informs whether a specific resource is a hard resource, a soft resource, or a not available (NA) resource, and
wherein based on that i) an integrated access and backhaul-mobile terminal (IAB-MT) is configured with the first parent DU included in a master cell group (MCG) and the second parent DU included in a secondary cell group (SCG) ii) the IAB-MT is not capable of simultaneous transmission and reception, iii) the IAB-MT would simultaneously transmit and receive on the first parent DU and the second parent DU, and iv) specific time resources are configured by both the first parent DU and the second parent DU, an operation of the IAB-MT is performed based on scheduling of the first parent DU included in the MCG.