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 |
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.
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