Patent ID: 11917534
Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 5:
6. A User Equipment (UE), the UE comprising:
processing circuitry; and
a memory, the processing circuitry being configured to access data stored in the memory, wherein the UE is configured to:
transmit to a session management node supporting interworking between a first system and a second system a message requesting establishment of a packet data connection in the first system; and
receive from the session management node a network slice identifier, wherein
the network slice identifier is selected by the session management node from either i) a subscription set of network slice identifiers in the second system or ii) a second set of network slice identifiers corresponding to a mapped set of the subscription set of network slice identifiers in the second system, and
after establishment of the data network connection in the first system, the UE is configured to provide the network slice identifier to the second system when moving from the first system to the second system, wherein the network slice identifier identifies a network slice allowed in the second system in accordance with the UE subscription in the second system.