Telecom Abbreviations

ABB	Full Form
3GPP	3rd Generation Partnership Project
ACIR	Adjacent Channel Interference Ratio
ACK	Acknowledgement
ACLR	Adjacent Channel Leakage Ratio
ACP	Automatic Cell Planning
ACS	Adjacent Channel Selectivity
AES	Advanced Encryption Standard
AGW	Access Gateway
AIF	Auto-Integration Function
AISG	Antenna Interface Standards Group
AM	Acknowledged Mode
AMBR	Aggregate Maximum Bit Rate
A-MPR	Additional Maximum Power Reduction
ANR	Automated Neighbour Relation
APAC	Asia Pacific
API	Application Programming Interface
APN	Access Point Name
ARP	Allocation and Retention Priority
ARQ	Automatic Repeat Request
ARW	Add RBS Wizard
AS	Access Stratum
AS	Application Server
A-SBG	Access SBG
ASC	Antenna System Controller
ASD	Automatic SW Download
ASSL	Adjacent Subcarrier Set Leakage
ASSR	Adjacent Subcarrier Set Rejection
BCCH	Broadcast Control Channel
BCH	Broadcast Channel
BEM	Block Edge Masks
BM-SC	Broadcast-Multicast Service Center
BS	Base Station
BSR	Buffer Status Report
BW	Bandwidth
C/I	Carrier-to-Interference Power Ratio
CA	Certificate Authority
CAPEX	Capital Expenditure
CAZAC	Constant Amplitude Zero Auto-Correlation
CCCH	Common Control Channel
CCE	Control Channel Element
CDD	Cyclic Delay Diversity
CDF	Cumulative Distribution Function
CDMA	Code Division Multiple Access
CE	Carrier Ethernet
CEPT	The European Conference of Postal and Telecommunications
CM	Configuration Management
CMC	Connection Mobility Control
CMDB	Configuration Management Data Base
CN	Core Network
COMINF	Common O&M Infrastructure
CO-OP	Cooperative Open-OSS Project (interface also called Itf-P2P)
CORBA	Common Object Request Broker Architecture
CP	Cyclic Prefix
CP	Control Plane
CPC	Continous Packet Connectivity
C-plane	Control Plane
CQI	Channel Quality Indicator
CRC	Cyclic Redundancy Check
C-RNTI	Cell RNTI
CS	Circuit Switched
CSCF	Call Session Control Function
CSG	Closed Subscriber Group
CSV	Comma-Separated Values
CTR	Cell TRace
CW	Codeword
CW	Continuous-wave
DCCH	Dedicated Control Channel
DCH	Dedicated Channel
DCI	Downlink Control Information
DCN	Data Communication Network
DFT	Discrete Fourier Transform
DFT-S-OFDM	DTF Spread OFDM
DHCP	Dynamic Host Configuration Protocol
DL	Downlink
DL-SCH	Downlink Shared Channel
DNS	Domain Name Service
DRB	Data Radio Bearer
DRX	Discontinuous Reception
DSCP	Differentiated Services Code Point
DTCH	Dedicated Traffic Channel
DTX	Discontinuous Transmission
DwPTS	Downlink Pilot Time Slot
EBS	Event Based Statistics
ECC	Electronic Communications Committee
ECGI	E-UTRAN Cell Global Identifier
ECM	EPS Connection Management
E-DCH	Enhanced DCH
EHPLMN	Equivalent Home PLMN
EMEA	Europe, Middle East and Africa
EMM	EPS Mobility Management
eNB	E-UTRAN NodeB
eNodeB	B E-UTRAN NodeB
EPC	Ericsson Policy Control
EPC	Evolved Packet Core
EPS	Evolved Packet System (E-UTRAN and EPC)
E-RAB	E-UTRAN Radio Access Bearer
ETSI	European Telecommunications Standards Institute
ETWS	Earth Quake and Tsunami Warning System
E-UTRA	Evolved UTRA
E-UTRAN	Evolved UTRAN, used as synonym for LTE
EV-DO	Evolution - Data Optimized
EVM	Error Vector Magnitude
FCC	Federal Communications Commission
FDD	Frequency Division Duplex
FDM	Frequency Division Multiplexing
FDMA	Frequency Division Multiple Access
FEC	Forward Error Correction
FFS	For Further Study
FFT	Fast Fourier Transform
FM	Fault Management
FMX	Fault Management Expert
FQDN	Fully Qualified Domain Name
FS	Frame Structure
FTP	File Transfer Protocol
GBR	Guaranteed Bit Rate
GCL	Generalized Chirp Like
GE	Gigabit Ethernet
GERAN	GSM EDGE Radio Access Network
GGSN	Gateway GPRS Support Node
GMPLS	Generalized Multi-Protocol Label Switching
GNSS	Global Navigation Satellite System
GP	Guard Period
GPRS	General Packet Radio Service
GSM	Global System for Mobile communication
GTP	GPRS Tunneling Protocol
GTP-C	GTP Control
GTP-U	GTP User Data Tunneling
GUI	Graphical user Interface
GUTI	Globally Unique Temporary Identifier
GW	Gateway
HA-CS	High Availability Cluster Solution
HARQ	Hybrid ARQ
HO	Handover
HOM	Higher Order Modulation
HPLMN	Home PLMN
HRPD	High Rate Packet Data
HSDPA	High Speed Downlink Packet Access
HS-DSCH	High Speed Downlink Shared Channel
HSPA	High Speed Packet Access
HSS	Home Subscriber Server
HSUPA	High Speed Uplink Packet Access
HTTP	Hypertext Transfer Protocol
HW	Hardware
IASA	Inter-Access Anchor
ICIC	Inter-Cell Interference Coordination
I-CSCF	Interrogating CSCF
LTE	10A Air Interface
-	210 - © Ericsson 2009 LZT 123
ID	Identifier
IEEE	Institute of Electrical and Electronics Engineers
IETF	Internet Engineering Task Force
IFFT	Inverse FFT
IMEI	International Mobile Equipment Identity
IMS	IP Multimedia Telephony
IMS	IP Multimedia subsystem
IMSI	Individual Mobile Subscriber Identity
IMT	International Mobile Telecommunications
IP	Internet Protocol
IRAT	Inter Radio Access Technology
IS	Integrated Site
ITU	International Telecommunications Union
ITU-R	ITU Radio communication Sector
JSR	Java Specification Request
KPI	Key Performance Indicator
LB	Load Balancing
LCID	Logical Channel ID
LCR	Low Chip Rate
LCR-TDD	Low Chip Rate TDD
LDC	Linear Dispersion Code
LDPC	Low-Density Parity-check Code
LED	Light Emitting Diode
LTE	Long Term Evolution, used as synonym for
MAC	Medium Access Control
MBA	Management Based Activation
MBMS	Multimedia Broadcast Multicast Service
MBR	Maximum Bit Rate
MBSFN	Multicast Broadcast Single Frequency Network
MCCH	Multicast Control Channel
MCE	Multi-cell/multicast Coordination Entity
MCH	Multicast Channel
MCS	Modulation and Coding Scheme
MEF	Mobile Entertainment Forum
MGC	Media Gateway Controller
MGW	Media Gateway
MIB	Master Information Block
MIB	Management Information Base
MIMO	Multiple Input Multiple Output
ML-PPP	Multilink point to point protocol
MM	Multi Mediation
MM	Mobility Management
MME	Mobility Management Entity
MMS	Multimedia Messaging Service Managed Objects interface (MOCI)
MMTel	Multi Media Telephony
MOCI	Managed Object Configuration Interface
MOP	Maximum Output Power
MPLS	Multiple Protocol Label Switching
MPR	Maximum Power Reduction
MS	Management Services
MSAP	MCH Subframe Allocation Pattern
MTAS	Multimedia Telephony Application Server
MTCH	Multicast Traffic Channel
MU-MIMO	Multiple User-MIMO
mUPE	MBMS UPE
NACK	Negative Acknowledgement
NAS	Non-Access Stratum
NCC	Network Color Code
NCL	Neighbour Cell List
NCLI	Node Command Line Interface
NCS	Neighbouring Cell Support
NE	Network Element
NEM	Network Element Manager
NGMN	Next Generation Mobile Networks
NGSA	Next Generation Service Assurance
NH	Next Hop Key
NM	Network Management
NMS	Network Management System
NMX	Network level deployment of expert rules
NOC	Network Operations Center
NR	Neighbor cell Relation
NRT	Non Real Time
N-SBG	Network SBG
O&M	Operation and Maintenance
OAM	Operations Administration and Management
OFDM	Orthogonal Frequency Division Multiplexing
OFDMA	Orthogonal Frequency Division Multiple Access
OMC	Operation and Maintenance Center
OOB	Out Of Band
OPEX	Operating Expenditures
OSS	Operation and Support System
OSS-RC	Operation and Support System Radio and Core
OTN	Operator Terminal Network
P(N)CCH	Paging (and Notification) Control Channel
P2P	Peer-to-Peer
PA	Power Amplifier
PAPR	Peak to Average Power Ratio
PAR	Peak to Average Ratio
PARC	Per Antenna Rate Control
PBBTE	Provider Backbone Bridge Traffic Engineering
PBC	Power and Battery Cabinet
PBCH	Physical Broadcast CHannel
PBN	Packet Backbone Network
PBR	Prioritised Bit Rate
PCC	Policy Charging Control
PCCH	Paging Control Channel
PCEF	Policy Charging Enforcement Function
PCFICH	Physical Control Format Indicator CHannel
PCH	Paging Channel
PCI	Physical Cell ID
PCRF	Policy Control and Charging Rules Function
P-CSCF	Proxy - Call Session Control Function
PDCCH	Physical Downlink Control CHannel
PDCP	Packet Data Convergence Protocol
PDN	Packet Data Network
PDP	Packet Data Protocol
PDSCH	Physical Downlink Shared CHannel
PDU	Protocol Data Unit
P-GW	PDN Gateway
PHICH	Physical Hybrid ARQ Indicator CHannel
PHR	Power Headroom Report
PHS	Personal Handy-phone System
PHY	Physical layer
PLMN	Public Land Mobile Network
PM	Performance Management
PMCH	Physical Multicast CHannel
PMI	Precoder Matrix Indicator
PMIP	Proxy Mobile IP
PnP	Plug and Play
PoP	Point of Presence
PRACH	Physical Random Access CHannel
PRB	Physical Resource Block
P-RNTI	Paging RNTI
PS	Packet Switched
PSC	Packet Scheduling
P-SCH	Primary Synchronization Channel
PSK	Pre-Shared Keys
PSTN	Public Switched Telephone Network
PTT	Push to Talk
PUCCH	Physical Uplink Control CHannel
PUSCH	Physical Uplink Shared Channel
QAM	Quadrature Amplitude Modulation
QCI	QoS Class Identifier
QoS	Quality of Service
QPP	Quadrature Permutation Polynomial
QPSK	Quadrature Phase Shift Keying
RA	Random Access
RA	Registration Authority
RAC	Radio Admission Control
RACH	Random Access Channel
RAN	Radio Access Network
RANAP	RAN Application Part
RA-RNTI	Random Access RNTI
RAT	Radio Access Technology
RB	Radio Bearer
RB	Resource Block
RBC	Radio Bearer Control
RBG	Radio Bearer Group
RBS	Radio Base Station
RET	Remote Electrical Tilt
RF	Radio Frequency
RFC	Request For Comment
RI	Rank Indicator
RLC	Radio Link Control
RM	Rate Matching
RNC	Radio Network Controller
RNL	Radio Network Layer
RNTI	Radio Network Temporary Identifier
ROHC	Robust Header Compression
ROP	Recording Output Periods
RPLMN	Registered PLMN
RRC	Radio Resource Control
RRM	Radio Resource Management
RRU	Radio Remote Unit
RS	Reference Symbols
RS	Reference Signal
RSN	Retransmission SN
RT	Real Time
RTCP	RTP Control Protocol
RTP	Real Time Transport Protocol
RTSP	Real Time Streaming Protocol
RU	Resource Unit
RX	Receiver
S1-MME	S1 for the control plane
S1-U	S1 for the user plane
SAE	System Architecture Evolution
SAP	Service Access Point
SB	Scheduling Block
SBC	Session Border Controller
SBG	Session Border Gateway
SCCH	Shared Control Channel
SCCP	Signaling Connection Control Part
SCEP	Simple Certificate Enrolment Protocol
SC-FDMA	Single Carrier – Frequency Division Multiple Access
SCH	Synchronization Channel
S-CSCF	Serving CSCF
SCTP	Streaming Control Transmission Protocol
SDF	Service Data Flow
SDH	Synchronous Digital Hierarchy
SDMA	Spatial Division Multiple Access
SDP	Session Description Protocol
SDU	Service Data Unit
SeGW	Security Gateway
SEM	Spectrum Emission Mask
SFN	System Frame Number
SFP	Small Form factor Pluggable
LTE	10A Air Interface
S-FTP	Secure File transfer protocol
SGSN	Serving GPRS Support Node
S-GW	Serving Gateway
SI	System Information
SIB	System Information Block
SINR	Signal to Interference and Noise Ratio
SIP	Session Initiation Protocol
SIR	Signal to Interference Ratio
SI-RNTI	System Info RNTI
SISO	Single Input Single Output
SLA	Service Level Agreement
SLO	Service Level Objectives
SM	Session Management
SMO	Software Manager Organizer
SMRS	Software Management Repository
SMS	Short Message Service
SN	Sequence Number
SNF	Service Network Framework
SNR	Signal to Noise Ratio
SON	Self Organizing Networks
SOX	Simple Outline XML
S-PARC	Selective PARC
SPID	Subscriber Profile ID for RAT/Frequency Priority
SQL	Structured Query Language
SR	Scheduling Request
SRB	Signaling Radio Bearer
S-SCH	Secondary Synchronization Channel
SSH	Secure Shell
SSL	Secure Sockets Layer
SSLIOP	IIOP over SSL
S-TMSI	SAE-TMSI
SU	Scheduling Unit
SU-MIMO	Single-User MIMO
SW	Soft Ware
TA	Tracking Area
TAS	Telephony Application Server
TAU	Tracking Area Update
TB	Transport Block
TBD	To Be Decided
TCP	Transmission Control Protocol
TDD	Time Division Duplex
TFCI	Transport Format Combination Indicator
TFP	Traffic Forwarding Policy
TFT	Traffic Flow Template
TLP	TEMS LinkPlanner
TM	Transparent Mode
TMA	Tower Mounted Amplifier
TMO	T-Mobile International AG
TMSI	Temporary Mobile Subscriber Identity
TNL	Transport Network Layer
TSP	Ericsson Telecom Server Platform
TTI	Transmission Time Interval
TX	Transmit
UCI	Uplink Control Information
UE	User Equipment
UETR	UE TRace
UL	Uplink
UL-SCH	Uplink Shared Channel
UM	Unacknowledged Mode
UMTS	Universal Mobile Telecommunication System
UP	User Plane
UPE	User Plane Entity
U-plane	User plane
UpPTS	Uplink Pilot Time Slot
URA	UTRAN Routing Area
UTRA	UMTS Terrestrial Radio Access
UTRAN	UMTS Terrestrial Radio Access Network
VoIP	Voice over IP
VPLMN	Visited PLMN
VRB	Virtual Resource Block
WAP	Wireless Access Protocol
WAPECS	Wireless Access Policy for Electronic Communications Services
WCDMA	Wideband Code Division Multiple Access
WDM	Wavelength Division Multiplexing
X2-C	X2-Control plane
X2-U	X2-User plane
XML	Extensible Markup Language