Acronyms

The following table provides information on the acronyms and terminology used in the document:

Table -1 Acronyms

Field	Description
3GPP	3rd Generation Partnership Project
AMF	Access and Mobility Management Function
ASM	Aspen Service Mesh
HTTPS	Hypertext Transfer Protocol Secure
KPI	Key Performance Indicator
NF	Network Function
NRF	Oracle Communications Cloud Native Core, Network Repository Function
NSI ID	Network Slice Instance Identifier
NSSAI	Network Slice Selection Assistance Information
NSSF	Network Slice Selection Function
Network Slice	A logical network that provides specific network capabilities and network characteristics.
PEI	Permanent Equipment Identifier
PLMN	Public Land Mobile Network
PDU	Protocol Data Unit
RAN	Radio Access Network
Requested NSSAI	NSSAI provided by the UE to the serving PLMN during registration.
Allowed NSSAI	NSSAI provided by the serving PLMN during a registration procedure, indicating the S-NSSAIs values the UE could use in the serving PLMN for the current registration area.
Configured NSSAI	NSSAI provisioned in the UE applicable to one or more PLMNs.
EANAN	Empty Authorized NSSAI Availability Notification
SEPP	Security Edge Protection Proxy
SBA	Service Based Architecture
SBI	Service Based Interface
SSC	Session and Service Continuity
SST	Slice or Service type
SD	Slice Differentiator
SMF	Session Management Function
S-NSSAI	Single Network Slice Selection Assistance Information
SUBMOD	Subscription Modification
Subscribed S-NSSAI	5G uses this as a default when the UE doesn’t send a Requested NSSAI
SUPI	Subscription Permanent Identifier
TA	Tracking Area
TAC	Tracking Area Code
TAI	Tracking Area Identifier
UDM	Unified Data Management
UDR	Unified Data Repository
UE	User Equipment