List of Abbreviations
- 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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