Appendix A: LTE acronyms and abbreviations
Numbers
1X         CDMA2000 1X
1X RNC     1X Radio Network Controller
2G         2nd Generation (GSM, TDMA, IS95A)
3G         3rd Generation (CDMA2000, UMTS)
3GPP       Third Generation Partnership Project
3GPP2      Third Generation Partnership Project 2
4G         4th Generation
A
AAA        Authentication, Authorization, and Accounting
AAT        Average Aggregate Throughput
ACK        Acknowledgement
ACL        Access Control List
ACLR       Adjacent Channel Leakage Ratio
ADMF       Administrative Function
AF         Assured Forwarding
AF         Application Function
AGW        Access Gateway
aIMS       Advances to IP Multimedia Services
AKA        Authentication and Key Agreement
ALU        Alcatel-Lucent
AM         Acknowledge Mode
AMBR       Aggregate Maximum Bit Rate
AM         Access Manager
AM         Accounting Management
AMC        Advanced Mezzanine Card
AN         Access Network
AN         Access Node
ANDSF      Access Network Discovery and Selection Function
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ANR        Automatic Neighbor Relationship
AP         Application Processor
AP         Application Protocol
APB        Active Phone Book
APN        Access Point Name
AR         Access Router
AR         Aggregation Router
ARP        Allocation and Retention Priority
ARQ        Automatic Repeat Request
AS         Access Stratum
AS         Application Server
ASN.1      Abstract Syntax Notation 1
ASN-GW     Access Service Network Gateway
AT         Access Terminal
ATCA       Advanced Telecommunications Computing Architecture
ATCA-LCP   Advanced Telecommunications Computing Architecture –
           Liquid Cooling Package
AVP        Attribute Value Pair
AWS        Advanced Wireless Services
B
BCCH       Broadcast Control Channel
BCH        Broadcast Channel
BE         Best Effort
BHCA       Busy Hour Call Attempts
BHL        Back Haul
BM         Bearer Manager
BM-SC      Broadcast-Multicast Service Center
B-PCF      1X RNC Blade PCF
BRC        Baseband Resources Controller
BS (BTS)   Base Station
BSR        Base Station Router
BSC        Base Station Controller
BTS (BS)   Base Transceiver Station
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C
CAC       Call Admission Control
CALEA     Communications Assistance for Law Enforcement Act
CAZAC     Constant Amplitude Zero Auto-Correlation
CB        Controler Board
CBC       Cell Broadcasting Center
CC        Content of Communication
CC        Cumulative Counter
CCCH      Common Control Channel
CCM       Common Chassis Management
CDMA      Code Division Multiple Access
CER       Capabilities Exchange Request (Diameter Setup)
CFC       Call Final Class
CFCQ      Call Final Class Qualifier
C/I       Carrier-to-Interference Power Ratio
CIM       Circuit Interface Module
CLI       Command Line Interface
CM        Configuration Management
CMAS      Commercial Mobile Alert System
CMC       Connection Mobility Control
CMIP      Client Mobile IP
CN        Core Network
CNFG      Configuration
CORBA     Common Object Request Broker Architecture
CP        Cyclic Prefix
C-plane   Control Plane
CPRI      Common Public Radio Interface
CPU       Central Processing Unit
CQI       Channel Quality Indicator
CRC       Cyclic Redundancy Check
C-RNTI    Cell RNTI
CS        Circuit Switched
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CTM-HSSPC   Controller Turbo Mode - High Speed Serial Protocol
            Controller (Xilinx IP)
CU          Controller Unit
D
d2U         Digital 2 Unit
d4U         Digital 4 Unit
DCCH        Dedicated Control Channel
DCI         Downlink Control Information
DER         Discrete Event Registration
DF          Delivery Function
DHCP        Dynamic Host Configuration Protocol
DL          Downlink
DL-SCH      Downlink Shared channel
DO          CDMA Data Only
DNS         Domain Name Server
DPH         Data Protocol Handler
DPI         Deep Packet Inspection
DRA&PS      Dynamic Resource Allocation & Packet Scheduling
DRB         Data Radio Bearer carrying user plane data
DRX         Discontinuous Reception
DS1         Digital Signal level 1 (1.544 Mbit/s)
DSC         Dynamic Service Controller
DSCH        Downlink Shared Channel
DSCP        Differentiated Services Code Point
DTCH        Dedicated Traffic Channel
DTR         Dual Transceiver
DTX         Discontinuous Transmission
DWR         Device Watchdog Request (heartbeat)
E
E1          Standard European PCM link (2.048 Mbit/s)
eAT         Evolved Access Terminal
EBI         EPS Bearer ID
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eBTS           Enhanced Base Transceiver Station
ECM            EPS Connection Management
E-DCH          Enhanced Dedicated Channel
EDGE           Enhanced Data rates for GSM Evolution
EF             Expedited Forwarding
eHRPD          Evolved High Rate Packet Data
EIR            Equipment Identity Register
ELP            ECP Location Services Protocol
EML            Element Management Level
EMM            EPS Mobility Management
EMS            Element Management System
eNodeB (eNB)   Evolved NodeB
EPC            Evolved Packet Core
ePDSN          Evolved Packet Data Serving Node
EPS            Evolved Packet System
eRNC           Evolved Radio Network Controller
ESD            Electrostatic Discharge
ESM            Evolved Session Management
E-SMLC         EPS Serving Mobile Location Center
eUTRAN         Evolved Universal Terrestrial Radio Access Network
EVDO           Evolution-Data Optimized or Evolution-Data Only
F
FA             Foreign Agent
FBC            Flow Based Charging
FCAPS          Fault, Configuration, Accounting, Performance, and Security
FDD            Frequency Division Duplex
FDM            Frequency Division Multiplexing
FFS            For Future Study
FM             Fault Management
FRS            Feature Requirements Specification
FRU            Field Replaceable Unit
FQDN           Fully Qualified Domain Name
FS             Frame Selection
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FTP      File Transfer Protocol
G
GBR      Guaranteed Bit Rate
GERAN    GSM EDGE Radio Access Network
GGSN     Gateway GPRS Support Node
GMLC     Gateway Mobile Location Center
GNSS     Global Navigation Satellite System
GPRS     General Packet Radio Service
GRE      Generic Routing Encapsulation
GSM      Global System for Mobile
GTP      GPRS Tunneling Protocol
GTP-C    GPRS Tunneling Protocol - Control
GTP-U    GPRS Tunneling Protocol - User
GUI      Graphical User Interface
GUMMEI   Globally Unique MME Identifier
GUTI     Globally Unique Temporary Identity
H
HA       Home Agent
HARQ     Hybrid ARQ
HO       Handover
H-PCRF   Home PCRF
H-PLMN   Home PLMN
HRPD     High Rate Packet Data
HSDPA    High Speed Downlink Packet Access
HSGW     HRPD Serving Gateway
HSPD     High Speed Packet Data
HSPP     High Speed Packet Processor
HSRP     Hot Standby Router Protocol
HSS      Home Subscriber Server
HSSL     High Speed Serial Link
HSSPC    High Speed Serial Protocol Controller
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HW      Hardware
I
ICIC    Inter-Cell Interference Coordination
IE      Information element
IETF    Internet Engineering Task Force
IM      Instant Messaging
IMEI    International Mobile Equipment Identifier
IMS     IP Multimedia Subsystems
IMSI    International Mobile Station Identifier
IP      Internet Protocol
IPBH    Internet Protocol Back Haul
IPM     IP Manager
IPMI    Intelligent Platform Management Interface
IPSec   Internet Protocol Security
I-RAT   Inter-Radio Access Technology
IRI     Intercept Related Information
ITU     International Telecommunication Union
J
JMS     Java Message Service
K
KPI     Key Performance Indicator
L
L1      Layer 1
L2      Layer 2
L3      Layer 3
LA      Location Area
LAI     Location Area Identity
LB      Load Balancing
LVI     LVI Application Function
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LBI    Linked EPS Bearer Identity
LBO    Local Break Out
LBS    Location Based Service
LCID   Logical Channel Identifier
LCP    Linux Control Platform
LCR    Low Chip Rate
LCS    Location Services
LDAC   Load Distribution and Access Control
LEA    Law Enforcement Agency
LED    Light-emitting Diode
LEMF   Law Enforcement Monitoring Function
LI     Lawful Interception
LIF    LVI Interface Function
LMA    Local Mobility Anchor
LMT    Local Maintenance Terminal
LPP    LTE Positioning Protocol
LR     Location Request
LRF    Location Retrieval Function
LSN    Local Secure Network
LTE    Long Term Evolution
LVI    LTE Voice Interworking
M
MAC    Medium Access Control
MAF    MME Application Function
MAG    Mobility Access Gateway
MBMS   Multimedia Broadcast Multicast Service
Mbps   Megabits per second
MBR    Maximum Bit Rate
MCC    Mobile Country Code
MCCH   Multicast Control Channel
MCE    Multicast Control Entity
MCM    Media Conversion Module
MCS    Modulation and Coding Scheme
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MEI     Mobile Equipment Identifier
META    Mobile Evolution Transport Architecture
MGW     Media Gateway
MI      Management Interface
MIB     Management Information Base
MIF     MME Interface Function
MIMO    Multiple Input Multiple Output
MIP     Mobile Internet Protocol
MLS     Multi-Layer Switch
MM      Mobility Management
MME     Mobility Management Entity
MMEC    MME Code
MMEGI   MME Group Id
MMEI    MME Identifier
MNC     Mobile Network Code
MO      Mobile Origination
MO      Managed Object
MPLS    Multi-Protocol Label Switching
MSC     Mobile Switching Center
MSIN    Mobile Subscriber Identification Number
MT      Mobile Termination
MTCH    MBMS Traffic Channel
MTU     Maximum Transmission Unit
MU      Modem Unit
N
NACK    Non-Acknowledgement
NAPTR   Name Authority Pointer
NAS     Non-Access Stratum
NBI     Northbound Interface
NE      Network Element (AGW or ENB)
NEL     Network Element Level
NEM     Network Element Manager
NML     Network Management Level
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NMS          Network Management System
NSA          National Security Agreement
NTP          Network Time Protocol
O
OA&M (OAM)   Operations, Administration, and Maintenance
OCAN         Offline Configuration of Access Networks
OCS          Online Charging System
OFCS         Offline Charging System
OFDM         Orthogonal Frequency Division Multiplexing
OFDMA        Orthogonal Frequency Division Multiple Access
OMC          Operations Management Centre
OMC-RAN      Operations and Maintenance Center – Radio Access Network
OMP          Operations and Management Platform
OOS          Out of Service
OS           Operating System
OSS          Operations Support System
P
PA           Power Amplifier
PAPR         Peak-to-Average Power Ratio
PBCH         Physical Broadcast Channel
PBR          Prioritized Bit Rate
PCC          Policy and Charging Control/Policy Control and Charging
PCCH         Paging Control Channel
PCEF         Policy and Charging Enforcement Function
PCFICH       Physical Control Format Indicator Channel
PCI          Physical Cell Identifier
PCMD         Per Call Measurement Data
PCRF         Policy and Charging Rules Function
PDCCH        Physical Downlink Control Channel
PDCP         Packet Data Context Protocol
PDN          Packet Data Network
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PDP          Packet Data Protocol
PDSN         Packet Data Serving Node
PDU          Packet Data Unit
PEF          Policy Enforcement Function
PEM          Power Entry Module
PGW (P-GW)   Packet Gateway (Packet Data Network Gateway)
PHICH        Physical Hybrid ARQ Indicator Channel
PHY          Physical layer
PIM          Packet Interface Module
PLMN         Public Land Mobile Network
PM           Performance Management
PM           Performance Measurements
PMC          Performance Measurement Counter
PMIP         Proxy Mobile IP
PO           Processor Occupancy
PPP          Point to Point Protocol
PRB          Physical Resource Block
PS           Packet Switched
PSAP         Public Safety Answering Point
PSC          Packet Scheduling
PSTN         Public Switched Telephone Network
PTM-MC       Point-to-Multipoint, Multi-Cell
PTM-SC       Point-to-Multipoint, Single-Cell
Q
QAM          Quadrature Amplitude Modulation
QCI          QoS Class Identifier
QoS          Quality of Service
QRM          Quality and Reliability Measurements
R
RA           Routing Area
RAC          Radio Admission Control
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RACH      Random Access Channel
RA-RNTI   Random Access RNTI
RAN       Radio Access Network
RAT       Radio Access Technology
RAU       Routing Area Update
RB        Radio Bearer
RBAC      Role-Based Access Control
RBC       Radio Bearer Control
RBP       Rack Back Plane
RCC       Reliable Cluster Computing
ReM       Redundancy Manager
RF        Radio Frequency
RFC       Request For Comments
RLC       Radio Link Control
RMT       Remote Maintenance Terminal
RNC       Radio Network Controller
RNL       Radio Network Layer
RNTI      Radio Network Temporary Identifier
R-OCM     Reverse - Optical Control Module
ROHC      Robust Header Compression
RQMS      Reliability and Quality Measurements for
          Telecommunications Systems
RRC       Radio Resource Control
RRH       Remote Radio Head
RRM       Radio Resource Management
RTM       Rear Transmission Module
RTT       Radio Transmission Technology
RU        Resource Unit
RUC       Rack User Commissioning
RX        Receive
S
S1-MME    S1 for the control plane
S1-U      S1 for the user plane
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SACK         SCTP Acknowledgement
SAE          System Architecture Evolution
SAM          Service Aware Manager
SAP          Service Access Point
SAR          Service Aggregation Router
SC-FDMA      Single Carrier - Frequency Division Multiple Access
SCH          Synchronization Channel
SCM          System Control Module
SCP          Secure Copy
SCTP         Stream Control Transmission Protocol
SDF          Service Data Flow
SDM          Subscriber DB Manager
SDMA         Spatial Division Multiple Access
SDU          Service Data Unit
SFM          Switch Fabric Module
SFN          Single Frequency Network
sFTP         Secure File Transfer Protocol
SGSN         Serving GPRS Support Node
SGW (S-GW)   Serving Gateway
SGW          Signaling Gateway
ShMC         Shelf Management Controller
SIP          Session Initiation Protocol
SLOAM        Slave Operation and Administration
SM           Security Management
SM           Session Management
SMC          Security Mode Command
SMS          Short Message Service
S-NAPTR      Straightforward Name Authority Pointer
SNMP         Simple Network Management Protocol
SNS          Shared Network Services
SOAP         Simple Object Access Protocol
SOL          Serial Over LAN
SON          Self-Organizing Network
SPR          Subscription Profile Repository
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SR       Service Router
SRNS     Serving Radio Network Subsystem
SRS      Sounding Reference Signal
SRV      DNS Service Record
SRVCC    Single Radio Voice Call Continuity
SSH      Secure Shell
S-TMSI   S-Temporary Mobile Subscriber Identity
SU       Scheduling Unit
SU       Software Update
SW       Software
T
TA       Tracking Area
TAC      Tracking Area Code
TAI      Tracking Area Identity
TAS      Telephony Application Server
TAU      Tracking Area Update
TB       Transport Block
TCP      Transmission Control Protocol
TDD      Time Division Duplex
TEID     Tunnel Endpoint Identifier
TFT      Traffic Flow Template
TIPC     Transparent Inter Process Communication
TM       Transparent Mode
TMN      Telecommunication Management Network
TMSI     Temporary Mobile Station Identity
TNL      Transport Network Layer
TRDU     Transmit Receive Duplex Unit
TTI      Transmission Time Interval
TX       Transmit
U
UDP      User Datagram Protocol
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UE        User Equipment
UL        Uplink
ULBO      Uplink Buffer Occupancy
ULR       Update Locate Request
UM        Un-acknowledge Mode
UMB       Ultra Mobile Broadband
UMTS      Universal Mobile Telecommunications System
UPA       User plane Application
U-plane   User plane
USIM      Universal Subscriber Identity Module
UTC       Coordinated Universal Time
UTRAN     Universal Terrestrial Radio Access Network
V
VCC       Voice Call Continuity
VLAN      Virtual Local Area Network
VLR       Visitor Location Register
VoIMS     Voice over IMS
VoIP      Voice over IP
V-PCRF    Visited PCRF
V-PLMN    Visited PLMN
VRB       Virtual Resource Block
VRRP      Virtual Router Redundancy Protocol
W
WAP       Wireless Access Protocol
W-CDMA    Wideband Code Division Multiple Access
WiMAX     Worldwide Interoperability for Microwave Access
X
X2-C      X2-Control plane
X2-U      X2-User plane
xCCM-U    Extended Core Controller Module Unit
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xCEM-U   Extended Channel Element Module Unit
XML      Extensible Markup Language
XMS      Extended Management System
Y
Z
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