Session transfer for packet data network connection

A non-transitory computer-readable medium storing instructions which, when executed by a processing system of a cellular network including at least one processor, cause the processing system to perform operations, the operations comprising:

• receiving, from an endpoint device, a request to establish a connection to a packet data network via the cellular network, wherein the request is received via a first radio access infrastructure;
• establishing, in response to the request, a first session for the endpoint device via the first radio access infrastructure, wherein the first session is for the connection to the packet data network;
• detecting at least one condition for transferring the connection to the packet data network to a second session, wherein the second session is via a second radio access infrastructure that is different from the first radio access infrastructure;
• establishing the second session;
• and
• transferring the connection to the packet data network to be solely over the second session over the second radio access infrastructure.

A device comprising:

• a processing system including at least one processor;
• and
• a non-transitory computer-readable medium storing instructions which, when executed by the processing system, cause the processing system to perform operations, the operations comprising:
• receiving, from an endpoint device, a request to establish a connection to a packet data network via a cellular network, wherein the request is received via a first radio access infrastructure;
• establishing, in response to the request, a first session for the endpoint device via the first radio access infrastructure, wherein the first session is for the connection to the packet data network;
• detecting at least one condition for transferring the connection to the packet data network to a second session, wherein the second session is via a second radio access infrastructure that is different from the first radio access infrastructure;
• establishing the second session;
• and
• transferring the connection to the packet data network to be solely over the second session over the second radio access infrastructure.