-
2G
- second generation
-
3ES
- three emergency services
-
3GPP
- 3rd Generation Partnership Project
-
3GPP2
- 3rd Generation Partnership Project 2
-
AC
- access class
-
ACB
- Access Class Barring
-
ACCOLC
- Access Overload Control
-
ACELP
- Algebraic Code Excited Linear Prediction
-
ACLR
- adjacent channel leakage ratio
-
ACMA
- Australian Communications and Media Authority
-
AES
- Advanced Encryption Standard
-
AF
- application function
-
AGA
- air–ground–air
-
AH
- Authentication Header
-
AI
- air interface
-
AIE
- air interface encryption
-
AMBR
- Aggregate Maximum Bit Rate
-
AMR-WB
- AMR Wideband
-
ANF
- Additional Network Feature
-
ANPR
- automatic number plate recognition
-
APCO
- Association of Public-Safety Communications Officials
-
API
- Application Programming Interface
-
APL
- automatic personnel location
-
APN
- Access Point Name
-
APN-AMBR
- Access Point Name Aggregate Maximum Bit Rate
-
AppComm
- Application Community
-
APT
- Asia-Pacific Telecommunity
-
ARIB
- Association of Radio Industries and Business
-
ARNS
- aeronautical radio navigation service
-
ARP
- Allocation and Retention Priority
-
ARQ
- Automatic Repeat reQuest
-
AS
- access stratum
-
ASA
- Authorised Shared Access
-
ASMG
- Arab Spectrum Management Group
-
ASP
- application service provider
-
ATIS
- Alliance for Telecommunications Industry Solutions
-
ATM
- Asynchronous Transfer Mode
-
ATU
- African Telecommunications Union
-
AuC
- authentication centre
-
AV
- authentication vector
-
AVL
- automatic vehicle location
-
BB
- broadband
-
BBDR
- broadband disaster relief
-
BM-SC
- Broadcast Multicast Service Centre
-
BoM
- bill of materials
-
BSO
- beneficial sharing opportunity
-
BS
- base station
-
BSSM
- base station spectrum manager
-
BTOP
- Broadband Technology Opportunities Program
-
BWT
- broadband wireless trunking
-
CA
- carrier aggregation
-
CAD
- computer-aided dispatching
-
CAI
- Common Air Interface
-
CAP
- Compliance Assessment Program
-
CAPEX
- capital expenditures
-
CATR
- China Academy of Telecommunication Research
-
CBRS
- Citizens Broadband Radio Service
-
CBS
- Citizens Broadband Service
-
CCA
- critical communications application
-
CCBG
- Critical Communications Broadband Group
-
CCC
- command and control centre
-
CCS
- critical communications system
-
CCSA
- China Communications Standards Association
-
CDIS
- coexistence discovery and information server
-
CDR
- charging data record
-
CE
- coexistence enabler
-
CE
- consumer electronics
-
cell ID
- cell identity
-
CFSI
- Conventional Fixed Station Interface
-
CGC
- complementary ground component
-
CISC
- Communications Interoperability Strategy for Canada
-
CITEL
- Inter-American Telecommunications Commission
-
CM
- coexistence manager
-
CO–CO
- contractor owned and contractor operated
-
COP
- common operating picture
-
COTM
- communications on the move
-
COTS
- commercial off-the-shelf
-
COW
- cell on wheel
-
CR
- cognitive radio
-
CRS
- cognitive radio systems
-
CRS
- control room systems
-
CS
- circuit switched
-
CSFB
- Circuit-Switched Fallback
-
CSSI
- Console Subsystem Interface
-
CUS
- collective use of spectrum
-
D2D
- device to device
-
DAS
- distributed antenna systems
-
dB
- decibel
-
DeNB
- donor eNB
-
DFT
- discrete Fourier transform
-
DGNA
- dynamic group number assignment
-
DHS
- Department of Homeland Security
-
DL
- downlink
-
DM
- device management
-
DMO
- direct mode operation
-
DNS
- Domain Name Service
-
DP
- delivery partner
-
DR
- disaster relief
-
DSA
- Dynamic Spectrum Arbitrage
-
DSATPA
- Dynamic Spectrum Arbitrage Tiered Priority Access
-
DTT
- digital terrestrial television
-
DWDM
- dense wavelength-division multiplexing
-
DySPAN
- Dynamic Spectrum Access Networks
-
E2EE
- end-to-end encryption
-
EAB
- Extended Access Barring
-
EC
- European Commission
-
ECA
- European Common Allocation
-
ECC
- Electronic Communications Committee
-
ECC
- emergency control centre
-
ECCS
- Emergency Communication Cell over Satellite
-
ECG
- electrocardiogram
-
ECN&S
- electronic communications networks and services
-
ECO EFIS
- European Communications Office Frequency Information System
-
ECS
- electronic communications services
-
EEA
- European Economic Area
-
EHPLMN
- Equivalent HPLMN
-
EIRP
- equivalent isotropic radiated power
-
EMA
- externally mounted antennas
-
eMBMS
- evolved MBMS
-
eMLPP
- Enhanced Multi-Level Precedence and Pre-emption
-
EMS
- emergency medical services
-
eNB
- evolved Node B
-
ENISA
- European Union Agency for Network and Information Security
-
ENUM
- E.164 NUmber Mapping
-
EPC
- Evolved Packet Core
-
EPL
- Ethernet private lines
-
EPS AKA
- EPS Authentication and Key Agreement
-
EPS
- Evolved Packet System
-
ESMCP
- emergency services mobile communications programme
-
ESN
- Emergency Services Network
-
ESO
- European Standards Organization
-
ESP
- Encapsulating Security Payload
-
ETS
- emergency telecommunications services
-
ETSI TC TCCE
- ETSI Technical Committee on TETRA and Critical Communications Evolution
-
ETSI
- European Telecommunications Standards Institute
-
EU
- European Union
-
E-UTRAN
- Evolved UMTS Radio Access Network
-
FBI
- Federal Bureau of Investigation
-
FCC
- Federal Communications Commission
-
FDMA
- frequency division multiple access
-
FirstNet
- First Responder Network Authority
-
FM PT 53
- Frequency Management Project Team 53
-
FM PT49
- Frequency Management Project Team 49
-
FNO
- fixed network operator
-
FS_IOPS
- Feasibility Study on Isolated E-UTRAN Operation for Public Safety
-
GB
- gigabytes
-
GBR
- Guaranteed Bit Rate
-
GCS AS
- GCS Application Server
-
GCS CA
- GCS Client Application
-
GCS
- group communications services
-
GCSE
- Group Communications System Enablers
-
GETS
- Government Emergency Telecommunications Service
-
GIS
- Geographic Information System
-
GLDB
- geo-location database
-
GMDSS
- Global Maritime Distress and Safety System
-
GO
- government owned
-
GO–CO
- government owned and contractor operated
-
GO–GO
- government owned and government operated
-
GPRS
- General Packet Radio Service
-
GSC
- Global Standards Collaboration
-
GSMA
- Global System for Mobile Association
-
GSM-R
- GSM-Railway
-
GUTI
- Globally Unique Temporary Identifier
-
GW
- gateway
-
GWCN
- Gateway Core Network
-
HD
- high definition
-
HetNet
- heterogeneous network
-
HO
- Home Office
-
H-PCRF
- Home PCRF
-
HR
- high resilience
-
HSS
- Home Subscriber Server
-
HTS
- high-throughput satellite
-
HTTPS
- HTTP Secure
-
HVAC
- heating, ventilation and air conditioning
-
IC
- Industry Canada
-
ICS
- incident command structure
-
ICT
- information and communications technology
-
IDA
- Info-Communications Development Authority
-
IDRA
- Integrated Dispatch Radio
-
IEEE
- Institute of Electrical and Electronics Engineers
-
IETF
- Internet Engineering Task Force
-
IKEv1
- Internet Key Exchange 1
-
IKEv2
- Internet Key Exchange 2
-
IKI
- Inter-Key Management Facility Interface
-
IM CN
- IP Multimedia Core Network
-
IMS
- IP Multimedia Subsystem
-
IMSI
- International Mobile Subscriber Identity
-
IP ISI
- IP-based Inter-System Interface
-
IP VPN
- IP virtual private network
-
IPX
- IP Packet Exchange
-
ISACC
- ICT Standards Advisory Council of Canada
-
ISI
- Inter-System Interface
-
ISP
- Internet service provider
-
ISSI
- Inter-RF Subsystem Interface
-
ITU
- International Telecommunication Union
-
ITU-R
- ITU Radiocommunication
-
JHA
- Justice and Home Affairs
-
KCC
- Korea Communications Commission
-
LAA
- Licenced-Assisted Aggregation
-
LAN
- local area network
-
LA-RICS
- Los Angeles Regional Interoperable Communications System
-
LC
- LSA controllers
-
LD/SC
- liquidated damages/service credits
-
LEWP
- Law Enforcement Working Party
-
LI
- lawful interception
-
LIPA
- Local IP Access
-
LMR
- land mobile radio
-
LPG
- liquid petroleum gas
-
LR
- LSA repository
-
LSA
- Licenced Shared Access
-
LTE
- Long-Term Evolution
-
M2M
- machine to machine
-
MAC
- medium access control
-
MBMS
- Multimedia Broadcast Multicast Service
-
MBMS-GW
- MBMS Gateway
-
MBR
- Maximum Bit Rate
-
MCC
- mobile country code
-
MCPTT NMO
- MCPTT Network Mode Operation
-
MCPTT
- mission-critical push-to-talk
-
MDM
- mobile device management
-
MEF
- Metro Ethernet Forum
-
MFCN
- mobile/fixed communications networks
-
MIC
- Ministry of Internal Affairs and Communications
-
MIFR
- Master International Frequency Register
-
MIMO
- multiple-input/multiple-output
-
MME
- Mobility Management Entity
-
MMI
- man–machine interface
-
MNO
- mobile network operator
-
MOA
- memorandum of agreement
-
MOCN
- Multi-Operator Core Network
-
MPLS
- Multiprotocol Label Switching
-
MPS
- Multimedia Priority Service
-
MPT
- Ministry of Post and Telecommunication
-
MS
- mobile service
-
MSC
- mobile switching centre
-
MSS
- mobile satellite service
-
MT
- mobile termination
-
MTPAS
- Mobile Telecommunication Privileged Access Scheme
-
MVNA
- mobile virtual network aggregator
-
MVNE
- mobile virtual network enabler
-
MVNO
- mobile virtual network operator
-
NAS
- non-access-stratum
-
NB
- narrowband
-
NE
- network entity
-
NEMA
- National Emergency Management Agency
-
NeNB
- nomadic eNB
-
NFV
- network functions virtualization
-
NGN
- next-generation network
-
NGO
- non-governmental organization
-
NIST
- National Institute of Standards and Technologies
-
NMS
- network management system
-
NoI
- Notice of Inquiry
-
NPSBN
- National Public Safety Broadband Network
-
NPSTC
- National Public Safety Telecommunications Council
-
NRA
- national regulatory authority
-
NS/EP
- national security and emergency preparedness
-
NSM
- Network spectrum manager
-
NTFA
- National Table of Frequency Allocations
-
NTIA
- National Telecommunications and Information Administration
-
NTP
- Network Time Protocol
-
OAM
- operation, administration and maintenance
-
OCHA
- Office for the Coordination of Humanitarian Affairs
-
OCS
- Online Charging System
-
OFCS
- Offline Charging System
-
OFDM
- orthogonal frequency-division multiplexing
-
OFDMA
- orthogonal frequency-division multiple access
-
OMA DM
- Open Mobile Alliance Device Management
-
OMA
- Open Mobile Alliance
-
OOBE
- out-of-band emission
-
OPEX
- operational expenditures
-
OSI
- Open Systems Interconnection
-
OTA
- over the air
-
OTAR
- over-the-air rekeying
-
OTN
- Optical Transport Network
-
OTT
- over the top
-
P25 PTToLTE
- P25 PTT over LTE
-
P25
- Project 25
-
PAS
- Publicly Available Specifications
-
PAWS
- Protocol to Access White Space
-
PCC
- Policy and Charging Control
-
PCEF
- Policy and Charging Enforcement Function
-
PCPS
- Push-to-Communicate for Public Safety
-
PCRF
- Policy and Charging Rules Function
-
PD
- packet data
-
PDB
- packet delay budget
-
PDN
- packet data network
-
PEI
- Peripheral Equipment Interface
-
PELR
- packet error loss rate
-
PEP
- performance-enhancing proxy
-
P-GW
- PDN Gateway
-
PIM
- personal information manager
-
PKI
- public key infrastructure
-
PLMN
- Public land mobile network
-
PMN
- public mobile network
-
PMR
- professional/private mobile radio
-
PMSE
- programme making and special event
-
PoC
- Push-to-Talk over Cellular
-
PP
- public protection
-
PPDR
- public protection and disaster relief
-
PRD
- Permanent Reference Document
-
ProSe
- proximity-based services
-
PS
- public safety
-
PSAC
- Public Safety Advisory Committee
-
PSAP
- public safety answering point
-
PSA
- public safety agency
-
PSC
- Public Safety Communications
-
PSCR
- Public Safety Communications Research
-
PSD
- power spectral density
-
PSG
- public safety grade
-
PSN
- public safety network
-
PSS
- Public Safety and Security
-
PSTN
- public switched telephone network
-
PTIG
- Project 25 Technology Interest Group
-
PTT
- push to talk
-
PWS
- Public Warning System
-
QCI
- QoS Class Identifier
-
QoE
- quality of experience
-
QoS
- quality of service
-
QPSK
- quadrature phase-shift keying
-
RAN
- radio access network
-
RAS
- radio astronomy service
-
RAT
- radio access technology
-
RB
- Resource Block
-
RBS
- radio base stations
-
RCC
- Regional Commonwealth in the Field of Communications
-
RCEG
- Radio Communications Expert Group
-
RCS
- Rich Communications Suite
-
REM
- Radio Environment Map
-
RF
- radio frequency
-
RFI
- request for information
-
RFID
- radio frequency identity
-
RFP
- request for proposals
-
RN
- relay node
-
ROHC
- Robust Header Compression
-
RR
- Radio Regulations
-
RRC
- Radio Resource Control
-
RRS
- Reconfigurable Radio System
-
RSC
- Radio Spectrum Committee
-
RSE
- RAN Sharing Enhancements
-
RSPG
- Radio Spectrum Policy Group
-
RSPP
- Radio Spectrum Policy Programmes
-
RTP
- Real-time Transport Protocol
-
SAGE
- Security Algorithms Group of Experts
-
SA
- security association
-
SAS
- spectrum access system
-
SC
- service code
-
SC
- spectrum coordinator
-
SC-FDMA
- single-carrier frequency-division multiple access
-
SCI
- Subscriber Client Interface
-
SCPC
- single channel per carrier
-
SDH
- Synchronous Digital Hierarchy
-
SDK
- software development kit
-
SDL
- supplementary downlink
-
SDN
- software-defined networking
-
SDO
- standards development organization
-
SDP
- service delivery platform
-
SDR
- software-defined radio
-
SDS
- short data service
-
SEG
- Security Gateway
-
S-GW
- Serving Gateway
-
SIB
- System Information Block
-
SIM
- Subscriber Identity Module
-
SIMTC
- System Improvements to Machine-Type Communication
-
SIP
- Session Initiation Protocol
-
SLA
- service-level agreement
-
SLIGP
- State and Local Implementation Grant Program
-
SMLA
- Spectrum Manager Lease Agreement
-
SMS
- Short Message Service
-
SN ID
- serving network identity
-
SN
- serving network
-
SONET
- Synchronous Optical Networking
-
SOS
- Spectrum Occupancy Sensing
-
SOW
- system on wheel
-
SPR
- Service Profile Repository
-
SPR
- Subscriber Profile Repository
-
SPS
- semi-persistent scheduling
-
SRDoc
- system reference documents
-
SRVCC
- Single Radio Voice Call Continuity
-
SSAC
- Service Specific Access Control
-
SSAR
- shared spectrum access right
-
STA
- special temporary authority
-
SwMI
- Switching and Management Infrastructure
-
TBCP
- Talk Burst Control Protocol
-
TC
- technical committee
-
TCCA
- TETRA and Critical Communications Association
-
TCCE
- TETRA and Critical Communications Evolution
-
TCO
- total cost of ownership
-
TDM
- time-division multiplexing
-
TDMA
- time division multiple access
-
TE
- terminal equipment
-
TEA
- TETRA Encryption Algorithm
-
TEDS
- TETRA Enhanced Data Service
-
TETRA ISI
- TETRA Inter-System Interface
-
TETRA
- Terrestrial Trunked Radio
-
TFA
- Table of Frequency Allocations
-
TFT
- Traffic Flow Template
-
TIA
- Telecommunications Industry Association
-
TMGI
- Temporary Mobile Group Identity
-
TMO
- trunked mode operation
-
TRA
- telecommunications regulatory authority
-
TTA
- Telecommunications Technology Association
-
TTC
- Telecommunication Technology Committee
-
TTI
- Transmission Time Interval
-
TVBD
- TV band devices
-
TVWS
- TV white spaces
-
UAV
- unmanned aerial vehicle
-
UAV
- Unmanned aeronautical vehicle
-
UE-AMBR
- UE Aggregate Maximum Bit Rate
-
UESM
- UE spectrum manager
-
UL
- uplink
-
UN
- United Nations
-
UPS
- uninterruptible power supply
-
USIM
- Universal Subscriber Identity Module
-
UTC
- Utilities Telecom Council
-
VC
- virtual circuits
-
VIP
- very important people
-
VoIP
- Voice over IP
-
VoLTE
- Voice over LTE
-
V-PCRF
- Visited PCRF
-
VPN
- virtual private network
-
VSAT
- very small aperture terminal
-
WAN
- wide area network
-
WB
- wideband
-
WGET
- Working Group on Emergency Telecommunications
-
WI
- Work Item
-
WPS
- Wireless Priority Service
-
WRAN
- wireless regional area network
-
WRC
- World Radiocommunication Conferences
-
WRC-03
- World Radio Conference 2003
-
WS
- white spaces
-
WSD
- white space devices
-
WTDC
- World Telecommunication Development Conferences
-
WTSA
- World Telecommunication Standardization Assembly
-
XCAP
- XML Configuration Access Protocol
-
XDMS
- XML Document Management Servers
-
XML
- Extensible Markup Language
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