| CPC H04W 36/32 (2013.01) [H04W 36/0033 (2013.01); H04W 60/04 (2013.01); H04W 8/02 (2013.01)] | 21 Claims |
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1. A computer system, comprising:
a networking subsystem configured to communicate with user equipment;
a processing subsystem coupled to the networking subsystem;
memory, coupled to the processing subsystem, configured to store program instructions, wherein, in response to being executed by the processing subsystem, the program instructions cause the computer system to perform operations comprising:
performing a first registration of the user equipment over a first access via a first access and mobility management function (AMF); and
performing a second registration of the user equipment over a second access, wherein the second access is different from the first access and the second access is via a second AMF, and
wherein performing the second registration comprises:
transferring, from the first AMF to the second AMF, a context of the user equipment comprising a first user equipment connection management (CM) state on the first access, wherein, in response to the first user equipment CM state being a CM-Connected state, the context comprises an identifier of an interworking function supporting the first access, and one or more next generation application protocol (NGAP) user equipment association identifiers; and
in response to the first user equipment CM state being the CM-Connected state, relocating a network interface in a control plane from the first AMF to the second AMF.
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