US 12,262,423 B2
First network node, second network node and methods performed thereby for handling a RACH configuration
Angelo Centonza, Torrenueva Costa (ES); Pablo Soldati, Solna (SE); and Ali Parichehrehteroujeni, Linköping (SE)
Assigned to Telefonaktiebolaget LM Ericsson (Publ), Stockholm (SE)
Appl. No. 17/635,458
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Aug. 12, 2020, PCT No. PCT/SE2020/050776
§ 371(c)(1), (2) Date Feb. 15, 2022,
PCT Pub. No. WO2021/034247, PCT Pub. Date Feb. 25, 2021.
Claims priority of provisional application 62/887,804, filed on Aug. 16, 2019.
Prior Publication US 2022/0272770 A1, Aug. 25, 2022
Int. Cl. H04W 74/0833 (2024.01)
CPC H04W 74/0841 (2013.01) 20 Claims
OG exemplary drawing
 
1. A method performed by a first network node, the method being for handling a Random Access Channel (RACH) configuration, the first network node operating in a wireless communications network with a Radio Access Technology with a split architecture, wherein the first network node is a Centralized Unit (CU) and a second network node is a Distributed Unit (DU), the method comprising:
detecting a conflict between a first RACH configuration in a first cell, the first cell being a served cell, and a second RACH configuration in a second cell;
sending a first indication to the second network node operating in the wireless communications network, the first indication being based on the detected conflict, the first indication comprising at least one of:
a notification of the conflict for the served cell,
assistance information associated to the detected conflict to assist the second network node to resolve the detected conflict for the served cell,
a request for assistance information associated to the detected conflict to assist the first network node to resolve the detected conflict for the served cell, and
a request for the second network node to resolve the detected conflict for the served cell; and
receiving one or more second indications from the second network node, the one or more second indications being based on the sent first indication, wherein at least one of the received one or more second indications is based on a result of a verification of an existence of the detected conflict.