For the purposes of the present document, the terms and definitions given in
TR 21.905 and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in
TR 21.905.
MTU:
Maximum transmission unit (MTU) is the largest PDU size which can be transmitted and received by a network entity in one single IP packet without any need for IP fragmentation.
NWt:
NWt is the reference point between the UE and the TNGF for establishing secure tunnel(s) between the UE and the TNGF so that control-plane and user-plane exchanged between the UE and the 5G core network is transferred securely over trusted non-3GPP access.
NWu:
NWu is the reference point between the UE and the N3IWF for establishing secure tunnel(s) between the UE and the N3IWF so that control-plane and user-plane exchanged between the UE and the 5G core network is transferred securely over untrusted non-3GPP access.
For the purposes of the present document, the following terms and definitions given in
TS 23.501 apply:
5G Access Network
5G Core Network
5G QoS flow
5G QoS identifier
5G System
Network identifier (NID)
PDU Session
Stand-alone Non-Public Network
TNGF
For the purposes of the present document, the following terms and definitions given in
TS 23.003 apply:
Global Line Identifier (GLI)
Global Cable Identifier (GCI)NAI
For the purposes of the present document, the following terms and definitions given in
TS 33.501 apply:
For the purposes of the present document, the following terms and definitions given in
TS 24.302 apply:
For the purposes of the present document, the following terms and definitions given in
TS 24.501 apply:
Non 5G capable over WLAN (N5CW) device
SNPN access operation mode
W-AGF acting on behalf of the N5GC device
For the purposes of the present document, the following terms and definitions given in
TS 23.316 apply:
Wireline access control plane protocol (W-CP)
Wireline access user plane protocol (W-UP)
For the purposes of the present document, the abbreviations given in
TR 21.905 and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in
TR 21.905.
5GCN
5G Core Network
5GS
5G System
5G-AN
5G Access Network
5QI
5G QoS Identifier
AMF
Access and Mobility Management Function
AN
Access Network
ANDS
Access Network Discovery and Selection
ANDSP
Access Network Discovery and Selection Policy
AUSF
Authentication Server Function
CP
Control Plane
CRG
Cable Residential Gateway
DHCP
Dynamic Host Configuration Protocol
DL
Downlink
DNS
Domain Name System
DSCP
Differentiated Services Code Point
ePDG
Evolved Packet Data Gateway
ESP
Encapsulating Security Payload
FQDN
Fully Qualified Domain Name
H-PCF
A PCF in the HPLMN
IP
Internet Protocol
IPsec
Internet Protocol Security
N3AN
Non-3GPP Access Network
N3IWF
Non-3GPP InterWorking Function
N5CW
Non 5G Capable over WLAN
N5GC
Non-5G Capable
NAI
Network Access Identifier
NAS
Non Access Stratum
NID
Network Identifier
NSWO
Non-Seamless WLAN Offload
PCF
Policy control Function
PDU
Protocol Data Unit
QFI
QoS Flow Identifier
RQI
Reflective QoS Indicator
SA
Security Association
SNPN
Stand-alone Non-Public Network
SPI
Security Parameters Index
SUPI
Subscription Permanent Identifier
SUCI
Subscription Concealed Identifier
TCP
Transmission Control Protocol
TNAN
Trusted Non-3GPP Access Network
TNAP
Trusted Non-3GPP Access Point
TNGF
Trusted Non-3GPP Gateway Function
TWAN
Trusted WLAN Access Network
TWAP
Trusted WLAN Access Point
TWIF
Trusted WLAN Interworking Function
UL
Uplink
UP
User Plane
UPF
User Plane Function
V-PCF
A PCF in the VPLMN
WLAN
Wireless Local Area Network
WLANSP
WLAN Selection Policy