US 12,439,311 B2
Migration of user equipment in an integrated access and backhaul network
Keerthi Kumar Nagalapur, Gothenburg (SE); Per-Erik Eriksson, Stockholm (SE); and Jingya Li, Gothenburg (SE)
Assigned to TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm (SE)
Appl. No. 18/014,383
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Jul. 6, 2020, PCT No. PCT/EP2020/068994
§ 371(c)(1), (2) Date Jan. 4, 2023,
PCT Pub. No. WO2022/008030, PCT Pub. Date Jan. 13, 2022.
Prior Publication US 2023/0262544 A1, Aug. 17, 2023
Int. Cl. H04W 36/08 (2009.01); H04W 36/00 (2009.01)
CPC H04W 36/08 (2013.01) [H04W 36/0072 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A method for migrating UEs from a serving integrated access and backhaul, (S-IAB) node, node to a replacement integrated access and backhaul (R-IAB) node, node, the method being performed by a donor integrated access and backhaul (D-IAB) node of the S-IAB node and the R-IAB node, the method comprising:
obtaining a request for replacement of the S-IAB node;
providing, to the S-IAB node, an indication of replacement of the S-IAB node;
obtaining, from the S-IAB node, scheduling information for the UEs served by the S-IAB node;
forwarding, to the R-IAB node, the scheduling information; and
initiating migration of at least a subset of the UEs from the S-IAB node to the R-IAB node by providing instructions, via the S-IAB node, to at least the subset of the UEs to switch from being served by the S-IAB node to being served by the R-IAB node.