- -
- 100%
- +
I Information frames (RLP)
I/O Input/Output
IA Incoming Access (closed user group SS)
IAM Initial Address Message
I-Block Information Block
IC Integrated Circuit
Interlock Code (CUG SS)
IC(pref) Interlock Code of the preferential CUG
ICB Incoming Calls Barred (within the CUG)
ICC Integrated Circuit Card
ICCID Integrated Circuit Card Identification
ICD Interface Control Document
ICGW Incoming Call Gateway
ICI Incoming Call Information
ICIC Inter-Cell Interference Coordination
ICIC Inter-Cell Interference Coordination
ICM In-Call Modification
ICMP Internet Control Message Protocol
ICS In-Channel Selectivity
ICT Incoming Call Timer
ID Infrastructure Domain, область сетевой инфраструктуры. Является, совместно с областью пользовательского оборудования, первичным разделением сети LTE на физическом уровне.
IDC In-Device Coexistence
IDFT Inverse Discrete Fourier Transform
IDL Interface Definition Language
IDN Integrated Digital Network
IDNNS Intra Domain NAS Node Selector
IE Information Element
IEC International Electrotechnical Commission
IED Information Element Data
IEI Information Element Identifier
IEIDL Information Element Identifier Data Length
IETF Internet Engineering Task Force
I-ETS Interim European Telecommunications Standard
IF Infrastructure
IFD Interface Device
IFOM IP FlOw Mobility
IFS Information Field Sizes
IFSC Information Field Size for the UICC
IFSD Information Field Size for the Terminal
IHOSS Internet Hosted Octet Stream Service
IIOP Internet Inter-ORB Protocol
IK Integrity key
IM Intermodulation
IMA Inverse Multiplexing on ATM
IMAP Interactive Mail Access Protocol, почтовый протокол с интерактивным доступом, используемый для отправки и получения почтовых сообщений.
IMC IMS Credentials
IMEI International Mobile Equipment Identity
IMGI International mobile group identity
IMPI IP Multimedia Private Identity
IMPU IP Multimedia PUblic identity
IMS IP Multimedia Subsystem
IMSI International Mobile Subscriber Identity
IMT-2000 International Mobile Telecommunications 2000
IMUN International Mobile User Number
IN Intelligent Network
Interrogating Node
INAP Intelligent Network Application Part
INF INFormation field
IOD Issue of Data
IoT Internet of Things
IP Internet Protocol. Протокол передачи пакетных данных, обеспечивающий дейтаграммный механизм доставки информации.
IP-CAN IP-Connectivity Access Network
IP-M IP Multicast
IP Multimedia
IPv4 Internet Protocol Version 4
IPv6 Internet Protocol Version 6
IR Infrared
IRP Integration Reference Point
IS Interface Specification
ISC International Switching Centre
ISCP Interference Signal Code Power
ISDN Integrated Services Digital Network
ISIM IM Services Identity Module
ISM Industrial, Scientific and Medical
ISO International Organisation for Standardisation
ISP Internet Service Provider
ISUP ISDN User Part
ITC Information Transfer Capability
ITS Intelligent Transportation Systems
ITU International Telecommunication Union
ITU-R Radiocommunication Sector of the ITU
IUI International USIM Identifier
IUT Implementation Under Test
IWF InterWorking Function
I-WLAN Interworking WLAN
IWMSC InterWorking MSC
IWU Inter Working Unit
JAR file Java Archive File
JCRE Java Card™ Run Time Environment
JD Joint Detection
JNDI Java Naming Directory Interface
JP Joint Predistortion
JPEG Joint Photographic Experts Group
JTAPI Java Telephony Application Programming Interface
JVM Java™ Virtual Machine
K Constraint length of the convolutional code
Windows size
kB Kilobyte (1000 bytes)
Kbps kilo-bits per second
Kc Ciphering key
Ki Individual subscriber authentication key
KPAS Korean Public Alert System
KSI Key Set Identifier
Ksps kilo-symbols per second
L1 Layer 1 (physical layer)
L2 Layer 2 (data link layer)
L2ML Layer 2 Management Link
L2R BOP L2R Bit Orientated Protocol
L2R COP L2R Character Orientated Protocol
L2R Layer 2 Relay
L3 Layer 3 (network layer)
LA Location Area
LAA Licensed-Assisted Access
LAC Link Access Control
Location Area Code
LAI Location Area Identity
LAN Local Area Network
LAPB Link Access Protocol Balanced
LAPDm Link Access Protocol on the Dm channel
LATA Local Access and Transport Area
LAU Location Area Update
LB Load Balancing
LBT Listen Before Talk
LCD Low Constrained Delay
LCG Logical Channel Group
LCN Local Communication Network
LCP Link Control Protocol
LCR Low Chip Rate
LCS Location Services
LCSC LCS Client
LCSS LCS Server
LE Local Exchange
LEN LENgth
L-GW Local Gateway
LHN ID Local Home Network ID
LHN Local Home Network
LI Language Indication
Length Indicator
Line Identity
LIPA Local IP Access
LLC Logical Link Control
Low Layer Compatibility
Lm Traffic channel with capacity lower than a Bm
LMA Local Mobility Anchor, точка привязки (якорь) локального местоположения мобильного абонента.
LMSI Local Mobile Station Identity
LMU Location Measurement Unit
LN Logical Name
LNA Low Noise Amplifier
LND Last Number Dialled
LNS L2TP Network Server
LP Location Probability
LPLMN Local PLMN
LPP LTE Positioning Protocol
LPPa LTE Positioning Protocol Annex
LR Location Register
LSA Localised Service Area
LSB Least Significant Bit
LSTR Listener SideTone Rating
LTE Long Term Evolution
Local Terminal Emulator
LTZ Local Time Zone
LU Local Units
Location Update
LV Length and Value
LWA LTE-WLAN Aggregation
LWAAP LTE-WLAN Aggregation Adaptation Protocol
LWIP LTE WLAN Radio Level Integration with IPsec Tunnel
LWIP-SeGW LWIP Security Gateway
M Mandatory
MA Mobile Allocation
MAC Medium Access Control, ( под )уровень управления доступом к среде.
MAC Message authentication code (encryption context), Код аутентификации сообщения (контекст шифрования)
MAC-A MAC used for authentication and key agreement (TSG T WG3 context)
MAC-I MAC used for data integrity of signalling messages (TSG T WG3 context)
MACN Mobile Allocation Channel Number
MAF Mobile Additional Function
MAH Mobile Access Hunting supplementary service
MAHO Mobile Assisted Handover
MAI Mobile Allocation Index
MAIO Mobile Allocation Index Offset
MAP Mobile Application Part
MBMS Multimedia Broadcast Multicast Service, услуга мультимедийного вещания.
MBMS Gateway шлюз мультимедийного вещания.
MBMS Multimedia Broadcast and Multicast Service
MBR Maximum Bit Rate
MBSFN Multicast Broadcast Single Frequency Network, одночастотная групповая вещательная сеть.
MCC Mobile Country Code
MCCH Multicast Control Channel, логический групповой управляющий канал, при помощи которого обеспечивается передача услуг мультимедийного вещания.
MCE Multi-cell/multicast Coordination Entity
MCG Master Cell Group
Main Carrier Group
MCH Multicast Channel, транспортный вещательный канал.
MCH Multicast channel
MCI Malicious Call Identification supplementary service
MCML Multi-Class Multi-Link PPP
Mcps Mega-chips per second
MCPTT Mission Critical Push To Talk
MCS Modulation and Coding Scheme, модуляция и схема кодирования
MCU Media Control Unit
MD Mediation Device
MDL (mobile) Management (entity) – Data Link (layer)
MDS Multimedia Distribution Service
MDT Minimization of Drive Tests
ME Maintenance Entity
Mobile Equipment
MEF Maintenance Entity Function
MEHO Mobile evaluated handover
MeNB Master eNB
MER Message Error Ratio
MExE Mobile Execution Environment
MF Master File
MultiFrame
MGCF Media Gateway Control Function
MGCP Media Gateway Control Part
MGT Mobile Global Title
MGW Media GateWay
MHEG Multimedia and Hypermedia Information Coding Expert Group
MHS Message Handling System
MIB Master Information Block
Management Information Base
MIC Mobile Interface Controller
MIM Management Information Model
MIME Multipurpose Internet Mail Extensions, стандарт многоцелевого расширения электронной почты.
MIMO Multiple Input Multiple Output, методы разнесённой передачи и параллельной антенной обработки.
MIP Mobile IP
MIPS Million Instructions Per Second
MLC Mobile Location Centre
MM Mobility Management
Man Machine
MM1 интерфейс логический стык между MMS-сервером и пользовательским MMS-агентом.
MM2 интерфейс логический стык между базовым и транзитным MMS-серверами.
MM3 интерфейс логический стык между MMS-сервером и внешними интернет-серверами.
MME Mobility Management Entity, наземные пункты управления мобильностью
MME Mobility Management Entity
MMI Man Machine Interface
MMS Multimedia Messaging Service, услуга по передаче мультимедийных сообщений.
MMSE Multimedia Messaging Service Environment, окружение мультимедийной услуги. Совокупность сетевых элементов, отвечающих за доставку мультимедийных сообщений и находящихся под управлением единого узла.
MMTEL Multimedia telephony
MNC Mobile Network Code
MNP Mobile Number Portability
MO Mobile Originated
MOHO Mobile Originated Handover
MO-LR Mobile Originating Location Request
MOP Maximum Output Power
MOS Mean Opinion Score
MO-SMS Mobile Originated Short Message Service
MoU Memorandum of Understanding
MP Multi-link PPP
MPDCCH MTC Physical Downlink Control Channel
MPEG Moving Pictures Experts Group
MPH (mobile) Management (entity) – PHysical (layer) [primitive]
MPR Maximum Power Reduction
MPS Multimedia Priority Service
MPTY MultiParTY
MR Medium Range
MRB MBMS Point to Multipoint Radio Bearer
MRF Media Resource Function
M-RNTI MBMS RNTI
MRO Mobility Robustness Optimisation
MRP Mouth Reference Point
MS Mobile Station
MSA MCH Subframe Allocation
MSAS Multi-functional Satellite Augmentation System
MSB Most Significant Bit
MSC Mobile Switching Centre
MSCM Mobile Station Class Mark
MSCU Mobile Station Control Unit
MSD Maximum Sensitivity Degradation
MSE MExE Service Environment
MSI MCH Scheduling Information
MSID Mobile Station Identifier
MSIN Mobile Station Identification Number
MSISDN Mobile Subscriber ISDN Number
MSP Multiple Subscriber Profile
MSR Multi-Standard Radio
MSRN Mobile Station Roaming Number
MT Mobile Terminated
Mobile Termination
MTC Machine-Type Communications
MTCH Multicast Traffic Chanel, логический групповой трафиковый канал, устанавливаемый для передачи услуг мультимедийного вещания.
MT-LR Mobile Terminating Location Request
MTM Mobile-To-Mobile (call)
MTP Message Transfer Part
MTP3-B Message Transfer Part level 3
MT-SMS Mobile Terminated Short Message Service
MTU Maximum Transfer Unit
MU Mark Up
MUI Mobile User Identifier
MUMS Multi User Mobile Station
MUST Multiuser Superposition Transmission
MVNO Mobile Virtual Network Operator
N/A Not Applicable
NACC Network Assisted Cell Change
NACK Negative Acknowledgement
NAD Node Address byte
NAI Network Access Identifier
NAICS Network Assisted Interference Cancellation/Suppression
NAS Non-Access Stratum, внешность слоя радиодоступа. Один их двух (совместно с AS) слоёв функциональных связей сети LTE.
NAV Navigation
NB Normal Burst
NBAP Node B Application Part
NBIN A parameter in the hopping sequence
NB-IoT Narrow Band Internet of Things
NCC Network (PLMN) Colour Code
NCCE Narrowband Control Channel Element
NCELL Neighbouring (of current serving) Cell
NCH Notification Channel, канал уведомления
NCK Network Control Key, ключ управления сетью связи
NCP Network Control Protocol, протокол управления сетью связи
NDC National Destination Code
NDUB Network Determined User Busy
NE Network Element
Norme Europeenne de Télécommunications
NEF Network Element Function
NEHO Network evaluated handover
NET NETwork
NEV NEVer
NF Network Function
NH Next Hop key
NIC Network Independent Clocking
NICT National Institute of Information and Communications Technology
NI-LR Network Induced Location Request
NITZ Network Identity and Time Zone
NM Network Manager
NMC Network Management Centre
NMO Network Mode of Operation
NMR Network Measurement Results
NMS Network Management Subsystem
NMSI National Mobile Station Identifier
NNI Network-Node Interface
NNSF NAS Node Selection Function
NO Network Operator
NP Network Performance
NPA Numbering Plan Area
NPBCH Narrowband Physical Broadcast channel (Узкополосный физический канал радиовещания)
NPDCCH Narrowband Physical Downlink Control channel, узкополосный физический канал управления нисходящего канала
NPDSCH Narrowband Physical Downlink Shared channel, Узкополосный Физический Совместно используемый канал Нисходящего канала
NPI Numbering Plan Identifier
NPRACH Narrowband Physical Random Access channel, Узкополосный Физический канал Произвольного доступа
NPRS Narrowband Positioning Reference Signal, Узкополосный канал, Помещающий Опорный сигнал
NPSS Narrowband Primary Synchronization Signal
NPUSCH Narrowband Physical Uplink Shared channel, Узкополосный Физический Восходящий Совместно используемый канал
NR Neighbour cell Relation
NRI Network Resource Identifier
NRM Network Resource Model
NRS Narrowband Reference Signal
NRT Non-Real Time
Neighbour Relation Table
NSAP Network Service Access Point
NSAPI Network Service Access Point Identifier
NSCK Network Subset Control Key
NSDU Network service data unit
NSS Network Sub System
NSSS Narrowband Secondary Synchronization Signal
NT Network Termination
Non Transparent
Nt Notification (SAP)
NTAAB New Type Approval Advisory Board
NTDD Narrow-band Time Division Duplexing
NUA Network User Access
NUI National User/USIM Identifier
Network User Identification
NUP National User Part (SS7)
NW Network
O Optional
O&M Operations & Maintenance
OA Outgoing Access (CUG SS)
OACSU Off-Air-Call-Set-Up
OCB Outgoing Calls Barred within the CUG
OCCCH ODMA Common Control Channel
OCF Open Card Framework
OCI Outgoing Call Information
OCNG OFDMA Channel Noise Generator
OCNS Orthogonal Channel Noise Simulator
OCS Online Charging System
OCT Outgoing Call Timer
OD Optional for operators to implement for their aim
ODB Operator Determined Barring
ODCCH ODMA Dedicated Control Channel
ODCH ODMA Dedicated Channel
ODMA Opportunity Driven Multiple Access
ODTCH ODMA Dedicated Traffic Channel
OFCS Offline Charging System
OFDM Orthogonal Frequency Division Multiplexing, мультиплексирование с ортогональным частотным разнесением.
OFDMA Orthogonal Frequency Division Multiple Access, множественный доступ на основе ортогонального частотного разнесения.
OFM Operational Feature Monitor
OID Object Identifier
OLR Overall Loudness Rating
OMA Open Mobile Alliance, международная организация производителей пользовательских услуг для мобильных телекоммуникационных устройств.
OMC Operation and Maintenance Centre
OML Operations and Maintenance Link
OOB Out-of-band
OPI Offload Preference Indicator
OPLMN Operator Controlled PLMN (Selector List)
OR Optimal Routeing
ORACH ODMA Random Access CHannel
ORLCF Optimal Routeing for Late Call Forwarding
OS Operations System
OSA Open Service Access
OSI RM OSI Reference Model
OSI Open System Interconnection
OSP Octet Stream Protocol
OSP:IHOSS Octet Stream Protocol for Internet Hosted Octet Stream Service
OTA Over-The-Air
OTDOA Observed Time Difference Of Arrival (positioning method)
OTP One Time Password
OVSF Orthogonal Variable Spreading Factor
P2X Pedestrian-to-Everything
PA Power Amplifier
PABX Private Automatic Branch eXchange
PACCH Packet Associated Control Channel
PAD Packet Assember/Disassembler
PAGCH Packet Access Grant Channel
PAP Password Authentication Protocol
PAPR Peak-to-Average Power Ratio
PAR Peak to Average Ratio
PB Pass Band
PBCCH Packet Broadcast Control Channel
PBCH Physical Broadcast Channel, физический вещательный канал.
PBID PhoneBook IDentifier
PBP Paging Block Periodicity
PBR Prioritised Bit Rate
PBX Private Branch eXchange
PC Power Control
PCB Protocol Control Byte
PCC Primary Component Carrier
PCCC Parallel Concatenated Convolutional Code
PCCCH Packet Common Control Channel
PCCH Paging Control Channel, логический вызывной управляющий канал, предназначенный для поиска в сети абонента или терминала посредством передачи вызывной информации.
PCCH Paging Control Channel
P-CCPCH Primary Common Control Physical Channel
PCDE Peak Code Domain Error
PCell Primary Cell
PCFICH Physical Control Format Indicator Channel, физический управляющий канал индикатора формата.
PCG Project Co-ordination Group
PCH Paging Channel, транспортный вызывной канал, поддерживающий прерывистый приём пакетов данных.
PCI Physical Cell Identifier
PCK Personalisation Control Key
PCM Pulse Code Modulation
PCMCIA Personal Computer Memory Card International Association
PCPCH Physical Common Packet Channel
P-CPIH Primary Common Pilot Channel
PCS Personal Communication System
PCU Packet Control Unit
PD Protocol Discriminator
Public Data
PDCCH Physical Downlink Control Channel, физический нисходящий управляющий канал.
PDCH Packet Data Channel
PDCP Packet Data Convergence Protocol, (под)уровень протокола конвергенции (слияния) пакетных данных.
PDH Plesiochronous Digital Hierarchy
PDN Public Data Network
Packet Data Network
PDP Packet Data Protocol, протокол пакетной передачи данных.
PD-SCH Physical Downlink Shared Channel, физический нисходящий совместный канал.
PDSCH Physical Downlink Shared Channel
PDTCH Packet Data Traffic Channel
PDU Protocol Data Unit, Протокольный блок данных
PG Processing Gain
P-GW Packet Data Network Gateway, шлюз пакетной сети.
PH Packet Handler
PHF Packet Handler Function
PHI Packet Handler Interface
PHICH Physical Hybrid ARQ Indicator Channel, физический канал индикатора гибридного запроса на повторение.
PHR Power Headroom Report
PHS Personal Handyphone System
PHY (Layer 1) физический уровень, называемый также Уровень 1.
PhyCH Physical Channel
PI Page Indicator
Presentation Indicator
PICH Page Indicator Channel
PICS Protocol Implementation Conformance Statement
PID Packet Identification
PIN Personal Identification Number
PIXT Protocol Implementation eXtra information for Testing
PKCS Public-Key Cryptography Standards
PL Preferred Languages
PLMN Public Land Mobile Network