US Patent 11388581 Robust adjustment of access and mobility management functions

A method and apparatus for robust adjustment of access and mobility management functions are disclosed. In one embodiment, a method includes: receiving a radio access network (RAN)-user equipment (UE) identifier from a first access and mobility management function (AMF), the RAN-UE identifier configured to identify a UE or UE context for a RAN; producing an AMF-UE identifier, the AMF-UE identifier configured to identify the UE or UE context for a second AMF; selecting a transport network layer association (TNLA) link towards a RAN; and sending the AMF-UE identifier to the RAN.