US 11,910,460 B2
Assistance information for SPCell selection
Angelo Centonza, Granada (ES); and Matteo Fiorani, Solna (SE)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Filed on Aug. 3, 2022, as Appl. No. 17/880,135.
Application 17/880,135 is a continuation of application No. 16/963,078, granted, now 11,438,951, previously published as PCT/IB2019/051578, filed on Feb. 27, 2019.
Claims priority of provisional application 62/636,713, filed on Feb. 28, 2018.
Prior Publication US 2022/0377825 A1, Nov. 24, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 76/00 (2018.01); H04W 76/18 (2018.01); H04B 17/318 (2015.01); H04W 76/19 (2018.01); H04W 76/27 (2018.01); H04L 41/0668 (2022.01); H04W 72/21 (2023.01); H04W 88/06 (2009.01)
CPC H04W 76/18 (2018.02) [H04B 17/318 (2015.01); H04L 41/0668 (2013.01); H04W 72/21 (2023.01); H04W 76/19 (2018.02); H04W 76/27 (2018.02); H04W 88/06 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method, performed by a central unit (CU) of a base station, for selecting a special cell (SpCell) to be used by a first distributed unit (DU) of the base station for serving a user equipment (UE) the method comprising:
sending, to the first DU, a first request comprising:
an identity of a first cell served by the first DU, as a preferred SpCell for the UE; and
identities of one or more second cells served by the first DU, as candidate SpCells for the UE; and
receiving, from the first DU, a first response comprising:
a first indication that the first DU cannot configure the first cell as an SpCell for the UE; and
a second indication of which of the second cells that the first DU can configure as an SpCell for the UE.