US 12,464,423 B2
Node and method for enabling a wireless terminal to be served by multiple cells in a communications network
Oumer Teyeb, Montréal (CA); Angelo Centonza, Granada (ES); Fredrik Gunnarsson, Linköping (SE); Niklas Johansson, Sollentuna (SE); Stefan Wager, Espoo (FI); and Pontus Wallentin, Linköping (SE)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Filed on Sep. 28, 2023, as Appl. No. 18/476,799.
Application 18/476,799 is a continuation of application No. 17/381,642, filed on Jul. 21, 2021, granted, now 11,778,524.
Application 17/381,642 is a continuation of application No. 14/006,882, granted, now 11,140,587, issued on Oct. 5, 2021, previously published as PCT/SE2013/050912, filed on Jul. 17, 2013.
Claims priority of provisional application 61/678,772, filed on Aug. 2, 2012.
Prior Publication US 2024/0022976 A1, Jan. 18, 2024
Int. Cl. H04W 36/00 (2009.01); H04W 36/24 (2009.01); H04W 36/04 (2009.01); H04W 36/28 (2009.01)
CPC H04W 36/0072 (2013.01) [H04W 36/0055 (2013.01); H04W 36/0064 (2023.05); H04W 36/00695 (2023.05); H04W 36/247 (2023.05); H04W 36/0027 (2013.01); H04W 36/04 (2013.01); H04W 36/28 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method of operation in a wireless terminal, the method comprising:
transmitting an indication to a source base station serving the wireless terminal, indicating that the wireless terminal supports selective handovers, which allow for identified subsets of bearers associated with the wireless terminal to be handed over;
receiving a selective handover message from the source base station, the selective handover message identifying a subset of existing bearers to be handed over from the source base station to a target base station; and
in response to determining that the identified subset is empty, establishing time alignment and synchronization with the target base station, while remaining connected to the source base station via the existing bearers.