5G-NR: Acronyms as per 3GPP

In this section, I have searched all the acronyms as per the 3GPP defained. I will keep updating this list to cover most of acronyms.

Acronym	Meaning
5GC	5G Core Network
5QI	5G QoS Identifier
AAS BS	Active Antenna System BS
ACK	Acknowledgement
AM	Acknowledged Mode
AMBR	Aggregated Maximum Bit Rate
AMC	Adaptive Modulation and Coding
AMF	Access and Mobility Management Function
AP	Application Protocol
ARP	Address Resolution Protocol
ARQ	Automatic Repeat request
AS	Access Stratum
ASN.1	Abstract Syntax Notation One
BA	Bandwidth Adaptation
BCH	Broadcast Channel
BLER	Block Error Rate
BPSK	Binary Phase Shift Keying
BSR	Buffer Status Report
BWP	Bandwidth part
CA	Carrier Aggregation
CB	Code block
CBG	Code block group
CCCH	Common Control Channel
CCE	Control channel element
CE	Control Element
CID	Context Identifier
CM	Connection Management
CMAS	Commercial Mobile Alert Service
COT	Channel Occupancy Time
CP	Cyclic prefix
CP	Control Plane
CQI	Channel quality indicator
CRC	Cyclic redundancy check
CRI	CSI-RS Resource Indicator
C-RNTI	Cell RNTI
CS	Configured Scheduling
CSI	Channel state information
CSI-RS	Channel state information reference signal
CSI-RSRP	CSI reference signal received power
CSI-RSRQ	CSI reference signal received quality
CSI-SINR	CSI signal-to-noise and interference ratio
CS-RNTI	Configured Scheduling RNTI
CU	Centeral Unit
CW	Codeword
DC	Dual Connectivity
DCCH	Dedicated Control Channel
DCI	Downlink control information
DFT-s-OFDM	Discrete Fourier Transform-spread-Orthogonal Frequency Division Multiplexing
DL	Downlink
DL-SCH	Downlink Shared Channel
DM-RS	Dedicated demodulation reference signals
DNN	Data Network Name (Same as APN name in LTE)
DRB	Data Radio Bearer carrying user plane data
DRX	Discontinuous Reception
DU	Distributed Unit
EHPLMN	Equivalent Home Public Land Mobile Network
EN-DC	EUTRA-NR Dual Connectivity
EPC	Evolved Packet Core
EPRE	Energy per resource element
EPS	Evolved Packet System
ETWS	Earthquake and Tsunami Warning System
E-UTRA	Evolved Universal Terrestrial Radio Access
E-UTRAN	Evolved Universal Terrestrial Radio Access Network
F1AP	F1 Application Protocol
F1-C	F1 Control plane interface
F1-U	F1 User plane interface
FDD	Frequency Division Duplex
FEC	Forward Error Correction
FFS	For Further Study
FMC	First Missing Count
GERAN	GSM/EDGE Radio Access Network
GF	Grant Free
GFBR	Guaranteed Flow Bit Rate
gNB	NR Node B
gNB-CU	gNB Central Unit
gNB-DU	gNB Distributed Unit
GNSS	Global Navigation Satellite System
GSCN	Global Synchronization Raster Channel
GSM	Global System for Mobile Communications
GTP-U	GPRS Tunnelling Protocol
HARQ	Hybrid Automatic Repeat Request
HARQ-ACK	Hybrid automatic repeat request acknowledgement
HFN	Hyper Frame Number
IAB	Integrated Access/Backhaul
IE	Information element
IETF	Internet Engineering Task Force
IMEI	International Mobile Equipment Identity
IMSI	International Mobile Subscriber Identity
IP	Internet Protocol
kB	Kilobyte (1000 bytes)
L1	Layer 1
L2	Layer 2 (data link layer)
L3	Layer 3 (network layer)
LADN	Local Area Data Network
LCG	Logical Channel Group
LDPC	Low Density Parity Check
MAC	Medium Access Control
MAC-I	Message Authentication Code for Integrity
MCG	Master Cell Group
MCS	Modulation and coding scheme
MEC	Mobile Edge Computing
MFBR	Maximum Flow Bit Rate
MIB	Master Information Block
MICO	Mobile Initiated Connection Only
MIMO	Multiple Input Multiple Output
MN	Master Node
MR-DC	Multi-RAT Dual Connectivity
N/A	Not Applicable
NAS	Non-Access Stratum
NCGI	NR Cell Global Identifier
NCR	Neighbour Cell Relation
NE-DC	NR-E-UTRA Dual Connectivity
ng-eNB	node providing E-UTRA user plane and control plane protocol terminations towards the UE, and connected via the NG interface to the 5GC
NGEN-DC	NG-RAN E-UTRA-NR Dual Connectivity
NG-RAN	NG Radio Access Network
NGAP	NG Application Protocol
NR	NR Radio Access
NSA	Non StandAlone
NSSAI	Network Slice Selection Assistance Information
O&M	Operation and Maintenance
OFDM	Orthogonal Frequency Division Multiplexing
OSI	Other System Information
PBCH	Physical Broadcast Channel
PCell	Primary Cell
PCH	Paging Channel
PDCCH	Physical downlink control channel
PDCP	Packet Data Convergence Protocol
PDSCH	Physical downlink shared channel
PRACH	Physical Random Access Channel
PSS	Primary Synchronisation Signal
PUCCH	Physical uplink control channel
PUSCH	Physical uplink shared channel
PDU	Protocol Data Unit
PHR	Power Headroom Report
PLMN	Public Land Mobile Network
PMI	Precoding Matrix Indicator
PRACH	Physical random access channel
PRB	Physical resource block
PRG	Physical resource block group
PSS	Primary synchronization signal
PTAG	Primary Timing Advance Group
PTI	Procedure Transaction Identity
PT-RS	Phase-tracking reference signal
PUCCH	Physical uplink control channel
PUSCH	Physical uplink shared channel
PWS	Public Warning System
QAM	Quadrature Amplitude Modulation
QCL	Quasi-collocation
QFI	QoS Flow ID
QoS	Quality of Service
QPSK	Quadrature Phase Shift Keying
RACH	Random Access Channel
RAN	Radio Access Network
RAT	Radio Access Technology
RB	Resource block
RB	Radio Bearer
RBG	Resource block group
RE	Resource element
REG	Resource element group
RF	Radio Frequency
RI	Rank indication
RIV	Resource indicator value
RLC	Radio Link Control
RMSI	Remaining Minimum SI(System Information)
RNA	RAN-based Notification Area
RNAU	RAN-based Notification Area Update
RNL	Radio Network Layer
RNTI	Radio Network Temporary Identifier
ROHC	RObust Header Compression
RPLMN	Registered Public Land Mobile Network
RQA	Reflective QoS Attribute
RQoS	Reflective Quality of Service
RRC	Radio Resource Control
RS	Reference signal
RSRP	Reference signal received power
RTP	Real Time Protocol
SA	StandAlone
SAP	Service Access Point
SCell	Secondary Cell
SCG	Secondary cell group
SCH	Shared Channel
SCTP	Stream Control Transmission Protocol
SDAP	Service Data Adaptation Protocol
SDF	Service Data Flow
SDU	Service Data Unit
SFN	System Frame Number
SI	System Information
SIB	System Information Block
SM	Session Management
SMF	Session Management Function
SMTC	SS block based RRM measurement timing configuration
SN	Sequence Number
SN	Secondary Node
SNN	Serving Network Name
S-NSSAI	Single NSSAI
SpCell	Special Cell
SPS	Semi-Persistent Scheduling
SR	Scheduling request
SRB	Signalling Radio Bearer
SRB	Signalling Radio Bearer carrying control plane data
SRS	Sounding reference signal
SS	Synchronisation signal
SSB	Synchronization Signal Block
SSC	Session and Service Continuity
SS-RSRP	SS reference signal received power
SS-RSRQ	SS reference signal received quality
SSS	Secondary synchronization signal
SS-SINR	SS signal-to-noise and interference ratio
STAG	Secondary Timing Advance Group
S-TMSI	SAE Temporary Mobile Station Identifier
SUL	Supplementary Uplink
TA	Timing advance
TAG	Timing advance group
TB	Transport Block
TCI	Transmission Configuration Indicator
TCP	Transmission Control Protocol
TPC	Transmit Power Control
TDD	Time Division Duplex
TDM	Time division multiplexing
TM	Transparent Mode
TNL	Transport Network Layer
TRP	Transmission and Reception Point
TPC-CS-RNTI	Transmit Power Control-Configured Scheduling-RNTI
TPC-PUCCH-RNTI	Transmit Power Control-Physical Uplink Control Channel-RNTI
TPC-PUSCH-RNTI	Transmit Power Control-Physical Uplink Shared Channel-RNTI
TPC-SRS-RNTI	Transmit Power Control-Sounding Reference Symbols-RNTI
TTI	Transmission Time Interval
UCI	Uplink control information
UDP	User Datagram Protocol
UE	User equipment
UICC	Universal Integrated Circuit Card
UL	Uplink
UL-SCH	Uplink shared channel
UM	Unacknowledged Mode
UP	User Plane
UPF	User Plane Function
URLLC	Ultra-Reliable and Low Latency Communications
URN	Uniform Resource Name
UTC	Coordinated Universal Time
UTRAN	Universal Terrestrial Radio Access Network
X-MAC	Computed MAC-I
Xn	network interface between NG-RAN nodes
Xn-C	Xn-Control plane (control plane interface between NG-RAN and 5GC)
Xn-U	Xn-User plane (user plane interface between NG-RAN and 5GC)
XnAP	Xn Application Protocol