A Non-Public Network (NPN) is a 5GS deployed for non-public use, see TS 22.261
. An NPN may be deployed as described in TS 23.501
in more detail:
a Stand-alone Non-Public Network (SNPN), i.e. operated by an NPN operator and not relying on network functions provided by a PLMN, or
a Public Network integrated NPN (PNiNPN), i.e. a NPN deployed with the support of a PLMN.
SNPN 5GS deployments are based on the architecture depicted in TS 23.501, clause 4.2.3
, and the additional functionality covered in TS 23.501, clause 5.30.2
PNiNPN can be enabled using network slicing (see Annex D of TS 23.501
). To prevent unauthorized UEs from trying to access a PNiNPN, the Closed Access Group (CAG) functionality described in clause 5.30.3 of TS 23.501
can be used in addition.
Vertical and LAN Services features include:
In the following clauses, key issues and potential solutions of security aspects of SNPN and PiNPN as well as the Vertical and LAN Services features are addressed.
Many aspects of TS 33.501
also apply to NPNs and it was decided to not copy those into the present document, but directly provide the specification text for the related NPN clauses as will be mentioned in the conclusion section.