US 12,244,492 B2
Centralized unit-distributed unit communication associated to radio link failure report and beam failure recovery attempts
Pradeepa Ramachandra, Linköping (SE); Icaro L. J. Da Silva, Solna (SE); Malik Wahaj Arshad, Stockholm (SE); Ali Parichehrehteroujeni, Linköping (SE); and Angelo Centonza, Torrenueva Costa Granada (ES)
Assigned to Telefonaktiebolaget LM Ericsson (Publ), Stockholm (SE)
Appl. No. 17/429,395
Filed by Telefonaktiebolaget LM Ericsson (PUBL), Stockholm (SE)
PCT Filed Feb. 5, 2020, PCT No. PCT/SE2020/050110
§ 371(c)(1), (2) Date Aug. 9, 2021,
PCT Pub. No. WO2020/167210, PCT Pub. Date Aug. 20, 2020.
Claims priority of provisional application 62/805,871, filed on Feb. 14, 2019.
Prior Publication US 2022/0131793 A1, Apr. 28, 2022
Int. Cl. H04L 45/42 (2022.01); H04L 45/44 (2022.01)
CPC H04L 45/42 (2013.01) [H04L 45/44 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method performed by a network node comprising a Centralized unit, the method comprising:
receiving assistance information for mobility robustness optimization;
determining, based on the received assistance information, configuration changes related to mobility robustness optimization;
determining a failure cause based on the received assistance information;
determining a geographic location where a failure originated based on the received assistance information, the geographic location where the failure originated is determined based on the determined failure cause, and mapping the geographic location to a cell associated to a Distributed Unit associated to a second Centralized Unit;
determining a mapping between a cell identifier and the second Centralized Unit; and
forwarding the assistance information and the configuration changes related to mobility robustness optimization to the second Centralized Unit.