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