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XSD: XML Schema Definition
XUI: XCAP Unique Identifier
Xn-C: Xn Control plane
Xn-U: Xn User plane
XnAP: Xn Application Protocol
Xw-C: Xw-Control plane
Xw-U: Xw-User plane
YAML: Yet Another Markup Language
Z-AoA: Zenith Angles of Arrival
ZF: Zero Forcing
ZOA: Zenith angle Of Arrival
ZOD: Zenith angle Of Departure
ZP CSI-RS: Zero Power CSI-RS
ZSA: Zenith angle Spread of Arrival
ZSD: Zenith angle Spread of Departure
Za: Interface between SEGs belonging to different networks / security domains (a Za interface may be an intra or an inter operator interface).
Zb: Interface between SEGs and NEs and interface between NEs within the same network / security domain
_ID: Network Control Center Identifier
cDRX: Connected Mode DRX
cIPX: consumer's IPX
cNRF: consumer's NRF
cPLMN: consumer's PLMN
cSEPP: consumer's SEPP
cps: characters per second
e.r.p.: Effective Radiated Power
e2DCe: End-to-Data-Channel edge
e2ae: End-to-access edge
e2ae-security: End-to-access edge security
e2e: End-to-end
eAN: evolved Access Network
eAN/PCF: Evolved Access Network Packet Control Function
eCFR: electronic Code of Federal Regulation
eCNAM: Enhanced Calling Name
eDRX: Extended Discontinuous Reception
eFMSS: Enhancement to Flexible Mobile Service Steering
eHRPD: evolved High Rate Packet Data
eIMTA: Enhanced Interference Management and Traffic Adaptation
eIMTA-RNTI: Enhanced Interference Management and Traffic Adaptation - RNTI
eKSI: Key Set Identifier for E-UTRAN
eMBB: Enhanced Mobile Broadband
eMLPP: Enhanced Multi-Level Precedence and Pre-emption Service
eMMTEL: Evolution of IMS Multimedia Telephony Service
eMPS: enhanced Multimedia Priority Service
eMTC: enhanced Machine-Type Communication
eNB: Evolved NodeB
eNode B: Evolved Node B
eNodeB: Evolved Node B
eP-CSCF: P-CSCF enhanced for WebRTC
ePDG: evolved Packet Data Gateway
ePWS: enhancements of Public Warning System
eRG: Evolved Residential Gateway
eRedCap: Enhanced Reduced Capability
eV2X: Enhanced V2X
gNB: next Generation Node B
gNB-CU: gNB-Central Unit
gNB-CU-CP: gNB-Control Unit Control Plane
gNB-CU-UP: gNB-Control Unit User Plane
gNB-DU: gNB-Distributed Unit
glTF: Graphics Library Transmission Format
gsmSCF: GSM Service Control Function
gsmSSF: GSM Service Switching Function
hNSACF: HPLMN NSACF
kB: Kilobyte (1000 bytes)
kbit: kilobit (1000 bits)
kbps: Kilobits per second
mIAB: Mobile IAB
mIAB-DU: Mobile IAB Distributed Unit
mIAB-MT: Mobile IAB Mobile Termination
mTRP: Multiple TRP
msd: mean solar day
n/a: not applicable
ng-eNB: Next Generation Evolved Node-B
ngKSI: Key Set Identifier for Next Generation Radio Access Network
pIPX: producer's IPX
pNRF: producer's NRF
pPLMN: producer's PLMN
pSEPP: producer's SEPP
pTAG: Primary Timing Advance Group
posSI: Positioning System Information
posSIB: Positioning System Information Block
rIK: re-authentication Integrity Key
rMSK: re-authentication Master Session Key
rRK: re-authentication Root Key
rUC: representative Use Case
rms: root mean square
sCCE: short Control Channel Element
sPDCCH: shortened Physical Downlink Control Channel
sPDSCH: shortened Physical Downlink Shared Channel
sREG: short Resource-Element Group
sTAG: Secondary Timing Advance Group
sTRP: Serving TRP
sTTI: Slot or subslot TTI
vNSACF: VPLMN NSACF
vSRVCC: Single Radio Video Call Continuity
xCC: LI_X3 Communications Content
xDSL: Digital Subscriber Line (all types)
xIRI: LI_X2 Intercept Related Information