Patent ID: 11910460
Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
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.