US 12,289,646 B2
Reporting failures of conditional handover mobility operations
Ali Parichehrehteroujeni, Linköping (SE); Pradeepa Ramachandra, Linköping (SE); Icaro Leonardo Da Silva, Solna (SE); Angelo Centonza, Granada (ES); and Cecilia Eklöf, Täby (SE)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Appl. No. 17/787,850
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Jan. 25, 2021, PCT No. PCT/SE2021/050042
§ 371(c)(1), (2) Date Jun. 21, 2022,
PCT Pub. No. WO2021/154142, PCT Pub. Date Aug. 5, 2021.
Claims priority of provisional application 62/967,973, filed on Jan. 30, 2020.
Prior Publication US 2023/0040285 A1, Feb. 9, 2023
Int. Cl. H04W 36/00 (2009.01); H04W 36/36 (2009.01)
CPC H04W 36/0079 (2018.08) [H04W 36/0058 (2018.08); H04W 36/362 (2023.05)] 18 Claims
OG exemplary drawing
 
1. A method, performed by a user equipment (UE) for reporting failures related to mobility operations, by the UE, to a network node in a radio access network (RAN), the method comprising:
logging information associated with a plurality of failures during conditional handover (CHO) operations related to a source cell and one or more first target cells; and
after a successful mobility operation to a second target cell served by the network node, reporting to the network node the logged information associated with the plurality of failures, wherein:
the plurality of failures include a first failure and a subsequent second failure;
the first failure is one of the following: a radio link failure (RLF) while monitoring for CHO in the source cell, or a failed CHO to a first one of the first target cells; and
the second failure is a failed CHO to a second one of the first target cells.