US 12,471,180 B2
CHO in DC (dual connectivity)
Patrik Rugeland, Stockholm (SE); and Icaro L. J. Da Silva, Solna (SE)
Assigned to TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm (SE)
Appl. No. 17/770,882
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Sep. 8, 2020, PCT No. PCT/SE2020/050846
§ 371(c)(1), (2) Date Apr. 21, 2022,
PCT Pub. No. WO2021/080481, PCT Pub. Date Apr. 29, 2021.
Claims priority of provisional application 62/925,268, filed on Oct. 24, 2019.
Prior Publication US 2023/0007553 A1, Jan. 5, 2023
Int. Cl. H04W 36/00 (2009.01); H04W 36/08 (2009.01); H04W 36/36 (2009.01); H04W 76/30 (2018.01)
CPC H04W 76/30 (2018.02) [H04W 36/0058 (2018.08); H04W 36/00698 (2023.05); H04W 36/00837 (2018.08); H04W 36/08 (2013.01); H04W 36/362 (2023.05)] 14 Claims
OG exemplary drawing
 
1. A method performed by a User Equipment, UE, for handling a Conditional Handover, CHO, from a first cell to a second cell in a wireless communications network, the UE being served by a Master Node, MN, in the first cell and by a Secondary Node, SN, in a third cell, the method comprising:
receiving a Radio Resource Control configuration, RRCReconfiguration, comprising a CHO configuration from the MN, the CHO configuration to be applied upon CHO execution, the CHO configuration comprising an indication to release one or more of: a Multi Radio Access Technology Dual Connectivity, MR-DC, configuration and an SN terminated bearer configuration, the MR-DC configuration comprising measurement configurations associated with a Secondary Cell Group, SCG, and the SN-terminated bearer configuration being for an SN terminated bearer associated to a logical channel that is associated to an SCG; and
upon execution of the CHO according to the CHO configuration, releasing at least one of the MR-DC configuration and the SN terminated bearer configuration.