Source secondary node (S—Sn) initiated cancellation of conditional PSCell change (CPC) in a multi-radio dual-connectivity (MR-DC) system
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsCecilia Eklöf, Icaro Leonardo Da Silva, Julien Muller
Life of this patent
Estimating the term…
Abstract
The invention concerns MR-DC (multi-radio dual connectivity) in which a UE is connected to a master node (MN) and secondary nodes (SN). In a Conditional PSCell Change (CPC)—i.e. a PSCell Change which is executed by the UE when an execution condition is met—a source secondary node, S-SN, may send a cancellation indication to a master node, MN, when said S-SN desires cancellation of a CPC configuration. Subsequently, the MN transmits a cancellation indication to the target candidate SNs configured with CPC.
Claims6
A method performed by a source secondary node (S-SN) for cancellation of a conditional primary secondary cell (PSCell) change, the method comprising:
- detecting that i) a Secondary Cell Group (SCG) is going to be deactivated or suspended and/or ii) a conditional hand over (CHO) needs to be configured;
- and
- transmitting a cancellation indication to a master node (MN) indicating that a configured conditional PSCell change (CPC) is to be cancelled, wherein
- the cancellation indication is transmitted as a result of:
- detecting that the SCG is going to be deactivated or suspended, or
- detecting that the CHO needs to be configured.
Dependencies are inferred from the claim text.