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A. Tracking Area Update

B. Registration

C. Initial Attach

D. Service Request

A. Support for higher data rates for EPC interfaces.

B. Controlled UE access to NR based upon subscription information.

C. PGW selection of appropriate PCRF that supports 5G policies.

D. MME selection of appropriate gateways capable of supporting NR.

A. NG-RAN uses the QoS profiles to create mapping between QoS Flow IDs and data radio bearers.

B. NG-RAN sends the QoS profiles and corresponding QoS Flow IDs to the UE.

C. Each QoS profile includes a 5G QoS Identifier (5QI) and an Allocation and Retention Priority (ARP).

D. SMF derives the QoS profile of a QoS Flow from a PCC rule and sends it to NG-RAN.

A. Dual connectivity is used for high throughput services such as eMBB.

B. Both eNB and gNB are connected with S1-U interfaces to SGW.

C. When NR radio quality becomes sub-optimal, gNB decides to split the bearer.

D. VoLTE traffic is handled by the LTE network.

A. gNB

B. ng-eNB

C. Evolved Packet Core

D. Dual Radio UE