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|  DNAI  |  DNN  |  DRB‑Id  |



specified from  Rel-15  in
TS 23.501, clause 5.9.6 

A DNN is equivalent to an APN. Both identifiers have an equivalent meaning and carry the same information.

The DNN may be used e.g. to:
  • Select a SMF and UPF(s) for a PDU Session.
  • Select N6 interface(s) for a PDU Session.
  • Determine policies to apply to this PDU Session.


specified from  Rel-12  in
TS 36.331, clause 6.3.2 

The DRB-Identity E-UTRA Radio Resource Control information element is used to identify a Data Radio Bearer used by a UE.