US 12,464,428 B1
Methods and devices for facilitating an inter-RAT handover
Fredrik Ovesjö, Stockholm (SE); Tao Cui, Stockholm (SE); Josefin Karlsson, Gothenburg (SE); and Stefan Granlund, Linköping (SE)
Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
Filed on May 9, 2025, as Appl. No. 19/203,911.
Application 19/203,911 is a continuation in part of application No. PCT/SE2025/050167, filed on Feb. 24, 2025.
Claims priority of provisional application 63/721,807, filed on Nov. 18, 2024.
Int. Cl. H04W 8/24 (2009.01); H04W 36/14 (2009.01); H04W 88/06 (2009.01)
CPC H04W 36/144 (2023.05) [H04W 8/24 (2013.01); H04W 88/06 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of operating a user equipment (“UE”) that is operable in Evolved Universal Mobile Telecommunications System Terrestrial Radio Access (“EUTRA”) networks and in new radio (“NR”) networks, the capability transfer method comprising:
compiling EUTRA capabilities of the UE;
compiling NR capabilities of the UE; and
transmitting one or more UE capability information messages with the compiled EUTRA capabilities and NR capabilities to a base station in an EUTRA network, characterized in that the NR capabilities are compiled subject to a capability size limit, which corresponds to a supported size of a container in a handover message sent on an inter-radio access technology (“RAT”) interface between Evolved Packet Core and Fifth Generation (“5G”) Core.