| abbreviation | English | Chinese |
| 1G | The 1st generation | First generation mobile communication |
| 2G | The 2nd generation | Second generation mobile communications |
| 3G | The 3rd generation | Third generation mobile communication |
| 3GPP | Third Generation Partnership Project | Third Generation Partners |
| 4G | The 4th generation | Fourth generation mobile communication |
| 5G | The 5th generation | Fifth generation mobile communication |
| 5GC | 5G Core Network | 5G core network |
| 5G-AN | 5G Access Network | 5G access network |
|
5G-BRG
|
5G Broadband Residential Gateway
|
5G broadband home gateway
|
|
5G-CRG
|
5G Cable Residential Gateway
|
5G cable TV home gateway
|
| 5G-EIR | 5G Equipment Identity Register | 5G device identification register |
| 5G-GUTI | 5G Globally Unique Temporary Identifier | 5G world's unique temporary identifier |
| 5GLAN | 5G Local Area Network | 5G LAN |
| 5GS | 5G System | 5G system |
| 5G-S-TMSI | 5G S-Temporary Mobile Subscription Identifier | 5G short format temporary mobile subscription identifier |
| 5G-TMSI | 5G Temporary Mobile Subscription Identifier | 5G Temporary Mobile Subscription Identifier |
| 5QI | 5G QoS Identifier | 5G QoS identifier |
| AAA | Authentication Authorization Accounting | Verification, authorization, accounting |
| AAU | Active Antenna Unit | Active antenna unit |
| ABNF | Augmented Backus-Naur Form | |
| ADC | Analog to Digital Converter | Analog-to-digital converter |
| AF | Application Function | Application Functions |
| AKA | Authentication and Key Agreement | Authentication and key negotiation protocol |
| AL | Aggregation Level | Aggregation level |
| AM | Access Management | Access Management |
| AM | Acknowledged Mode | Confirm mode |
| AMBR | Aggregate Maximum Bit Rate | Aggregation maximum bit rate |
| AMC | Adaptive Modulation and Coding | Adaptive modulation coding |
| AMF | Access and Mobility Management Function | Access and mobility management capabilities |
| AMPS | American Mobile Phone System | American mobile phone system |
| AN | Access Network | Access to the network |
| ANDSF |
Access Network Discovery and Selection Functionality
|
Access network discovery and selection functions |
| APN | Access Point Name | Access point name |
| AR | Augmented Reality | Reality enhancement |
| ARIB | Association of Radio Industries and Businesses | (Japan) Wireless Industry and Trade Federation |
| ARP | Allocation and Retention Priority | Allocation and retention priority |
| ARPF | Authentication credential Repository and Processing Function | Authentication credential repository and processing functions |
| AS | Access Stratum | Access layer |
| ATM |
Asynchronous Transfer Mode
|
Asynchronous transmission mode |
|
ATSSS
|
Access Traffic Steering，Switching，Splitting | Access traffic orientation, switching and splitting |
| ATSSS-LL | ATSSS Low Layer | ATSSS low layer |
| AUSF | Authentication Server Function | Authentication server function |
| BBF | Broadband Forum | |
| BBU | Baseband Unit | Baseband processing unit |
| BCCH | Broadcast Control Channel | Broadcast control channel |
| BCH | Broadcast Channel | Broadcast Channel |
| BFRQ | Beam Failure Recovery request | Beam recovery request |
| BLER | Block Error Rate | Block error rate |
| BP |
Branching Point
|
|
|
BRG
|
Broadband Residential Gateway
|
|
| BS | Base Station | Base station |
| BSF |
Binding Support Function
|
Binding support functions |
| BSR | Buffer Status Report | Cache status report |
| BWP | Bandwidth Part | Partial bandwidth |
| C&M | Control & Management | Control and management |
| CAG | Closed Access Group | Closed access group |
|
CAPIF
|
Common API Framework for 3GPP northbound APIs
|
Public API framework for 3GPP Northbound API
|
| CBC | Cell Broadcast Center | Community Broadcasting Center |
| CBE | Cell Broadcast Entity | Community broadcast entity |
| CBG | Code block group | Code block group |
| CBGFI | CBG Flushingout Information | CBG erase information |
| CBGTI | CBG Transmission Information | CBG transmission information |
| CCCH | Common Control Channel | Public control channel |
| CCE | Control-Channel Element | Control channel elements |
| CDM | Code Division Multiplexing | Code division multiplexing |
| CDMA | Code Division Multiple Access | Code division multiple access |
|
CHF
|
Charging Function | Billing function |
| CM | Connection Management | Connection Management |
| CMAS | Commercial Mobile Alert Service | Commercial mobile early warning system |
| CN | Core Network | Core network |
| CORESET | Control Resource Set | Control resource set |
| CP | Control Plane | Control plane |
| CP | Cyclic Prefix | Loop prefix |
| CPE | Customer Premise Equipment | User front-end equipment |
| CPRI | Common Public Radio Interface | Universal public wireless interface |
| CQI | Channel Quality Indicator | Channel quality indication |
| CRB | Common Resource Block | Public resource blocks |
| CRC | Cyclic Redundancy Check | Cyclic redundancy verification |
| CRG |
Cable Residential Gateway
|
|
| CRI | Contention Resolution Identity | Competition resolution logo |
| CRS | Cell-specific Reference Signals | Cell-specific reference signal |
| CRUD | Create, Retrieve, Update, Delete | (During calculation processing) Addition, search, deletion and modification |
| CS | Circuit Switch | Circuit Switching |
| CSCF |
Call Session Control Function
|
Call session control function |
| CSFB | CS Fallback | Circuit domain falls back |
| CSI | Channel State Information | Channel status information |
| CSI-IM | CSI Interference Measurement | Channel status information interference measurement |
| CSI-RS | Channel state information Reference Signal | Channel status information reference signal |
| CSS | Common Search Space | Public search space |
| C-TEID | Common Tunnel Endpoint Identifier | |
| CU | Central Unit | Central Unit |
| CU-CP | Centralized Unit Control Plane | Central unit control surface |
| CUPS | Control and User Plane Separation | Control and user plane separation |
| CU-UP | Centralized Unit User Plane | Central unit user plane |
| DAC | Digital to Analog Converter | Digital to analog converter |
| DAI | Downlink Assignment Index | Downlink allocation index |
| D-AMPS | Digital Advanced Mobile Phone Service | Advanced digital mobile phone service |
|
DAPS
|
Dual Active Protocol Stacks
|
|
| DC | Dual Connectivity | Dual connection |
| DCCH | Dedicated Control Channel | Dedicated control channel |
| DCI | Downlink Control Information | Downlink control information |
| DCN | Dedicated Core Network | Dedicated core network |
| DHCP | Dynamic Host Configuration Protocol | Dynamic Host Configuration Protocol |
| DL | Downlink | Down |
| DL-SCH | Downlink Shared Channel | Downlink shared channel |
| DMRS | Demodulation Reference Signal | Demodulate the reference signal |
| DN | Data Network | Data Network |
|
DNAI
|
Data Network Access Identifier
|
DN access identifier |
| DNF | Disjunctive Normal Form | |
| DNN | Data Network Name | Data network name |
| DNS | Domain Name System | Domain Name System Protocol |
| DRB | Data Radio Bearer | Data wireless bearer |
| DRX | Discontinuous Reception | Intermittent reception |
| DSCP | Differentialcd Services Code Point | Differential service code point |
| DSS | Dynamic Spectrum Sharing | Dynamic spectrum sharing |
| DTCH | Dedicated Traffic Channel | Dedicated service channel |
| DU | Distributed Unit | Distributed Unit |
| EAP | Extensible Authentication Protocol | Extensible authentication protocol |
| EBI |
EPS Bearer Identity
|
EPS Bearing Mark
|
| eCPRI | evolved Common Public Radio Interface | Enhanced universal public radio interface |
| eLTE | enhanced Long Term Evolution | Enhanced long-term evolution network |
| eMBB | Enhanced Mobile Broadband | Enhanced mobile broadband |
| eMTC | LTE enhanced Machine Type of Communication | Enhanced machine communication based on LTE |
| EN-DC |
E-UTRAN New Radio-Dual Connectivity
|
Dual connection between E-UTRAN and new air interface
|
| eNodeB(eNB) | evolved NodeB（4G） | Evolutionary base station |
| EPC | Evolved Packet Core | Evolving packet core network |
| ePDG |
evolved Packet Data Gateway
|
Evolving packet data gateway |
| EPRE | Energy Per Resource Element | Power per resource element |
| EPS | Evolved Packet System | Evolving grouping system |
| eRE | eCPRI Radio Equipment | eCPRI radio equipment |
| eREC | eCPRI Radio Equipment Control | eCPRI radio equipment control |
| ETSI | European Telecommunications Standards Institute | European Telecom Standardization Association |
| ETWS | Earthquake and Tsunami Warning System | Earthquake and tsunami warning system |
| E-UTRAN |
Evolved Universal Terrestrial Radio Access Network
|
Evolving universal land wireless access network |
| FAR |
Forwarding Action Rule
|
Forwarding action rules |
| FDD | Frequency Division Duplex | Frequency division duplex |
| FDM | Frequency Division Multiplexing | Frequency division multiplexing |
| FDMA | Frequency Division Multiple Access | Frequency division multiple access |
|
FN-BRG
|
Fixed Network Broadband Residential Gateway
|
Fixed network broadband RG
|
|
FN-CRG
|
Fixed Network Cable Residential Gateway
|
Fixed-net cable TV RG |
|
FN-RG
|
Fixed Network Residential Gateway
|
Fixed network RG |
| FPGA | Field Programmable Gate Array | Field programmable gate array |
| FQDN | Fully Qualified Domain Name | Fully qualified domain name/fully qualified domain name |
| FR1 | Frequency Range 1 | Frequency range 1 |
| FR2 | Frequency Range 2 | Frequency range 2 |
| GAD |
Universal Geographical Area Description
|
|
| GBR | Guaranteed Bit Rate | Ensure bit rate |
| GFBR | Guaranteed Flow Bit Rate | Ensure stream bit rate |
|
GMLC
|
Gateway Mobile Location Centre | Gateway Mobile Location Center |
| gNB | gNodeB | 5G base station |
| GP | Guard Period | Protective interval |
| GPRS | General Packet Radio Service | General wireless packet service |
| GPSI | Generic Public Subscription Identifier | Universal public subscription identifier |
| GSCN | Global Synchronization Channel Number | Global synchronization channel number |
| GSM | Global System for Mobile Communications（2G） | Global Mobile Communications System |
| GSMA | GSM Association | Global Mobile Communication Systems Association |
| GTP | GPRS Tunneling Protocol | GPRS Tunnel Protocol |
| GTP-U |
GPRS Tunneling Protocol for User Plane
|
GPRS user plane tunnel protocol |
| GTPv2 | GPRS Tunneling Protocol version 2 | |
| GTPv1-U | GPRS Tunneling Protocol version 1 - User |
|
| GUAMI | Globally Unique AMF Identifier | Worldwide unique AMF identifier |
| GW | GateWay | Gateway |
| GZIP | GNU ZIP | |
| HAL |
Hypertext Application Language
|
|
| HARQ | Hybrid Automatic Repeat reQuest | Hybrid automatic retransmission request |
| HARQ-ACK | Hybrid Automatic Repeat rcQuest-Acknowledgements | Hybrid automatic retransmission of response messages |
|
HATEOAS
|
Hypermedia as the Engine of Application State
|
|
| HFC |
Hybrid Fiber-Coaxial
|
|
| HFN | Hyper Frame Number | Superframe number |
| HPLMN | Home PLMN | Attribution to PLMN |
| HR | Home Routed（roaming） | Home routing (roaming) |
|
H-SMF
|
Home SMF
|
|
| HSPA | High-Speed Packet Access | High-speed packet access |
| HSS | Home Subscriber Server | Home signing user server |
| HTTP | Hyper Text Transfer Protocol | Hypertext transfer protocol |
| IAB | Integrated Access and Backhaul | Access and return integration |
| IDL | Interface Definition Language | |
| IE | Information Element | Information elements |
| IETF |
Internet Engineering Task Force
|
International Internet Engineering Task Force |
| IMEI | International Mobile Equipment Identity | International mobile device logo |
| IMEISV | International Mobile Equipment Identity Software Version | International Mobile Device Identification Software Version |
| IMS | IP Multimedia Subsystem | IP multimedia subsystem |
| IMSI | International Mobile Subscriber Identity | International Mobile Subscriber Identification |
| IMT | International Mobile Telecommunications | International Mobile Communications System |
| IP | Internet Protocol | International Internet Agreement |
| I-RNTI | Inactive Radio Network Temporary Identity | Inactivated wireless network temporary identifier |
|
I-SMF
|
Intermediate SMF
|
Intermediate SMF |
| ITU | International Telecommunication Union | ITU |
| LADN | Local Area Data Network | Local data network |
| LBO | Local Break Out (roaming) | Local guidance |
| LC-H | Load Control based on LCI Header | |
| LCI | Load Control Information | |
| LDPC | Low Density Parity Check Code | Low-density parity code |
| LDR |
Location Deferred Request
|
|
| LI | Lawful Interception | Legal monitoring |
| LMF |
Location Management Function
|
Location management function |
| LoS | Line of Sight | Range of sight |
| LRF | Location Retrieval Function | Location acquisition function |
| LTE | Long Term Evolution | Long-term evolution system |
| MA |
Multi-Acces
|
|
| MAC | Medium Access Control | Media access control |
| Massive MIMO | Massive Multiple Input Multiple Output | Large-scale antenna |
| MBR | Maximum Bit Rate | Maximum bit rate |
| MCC | Mobile Country Code | Mobile country code |
| MCG | Master Cell Group | Main community group |
| MCS | Modulation and Coding Scheme | Modulation coding scheme |
|
MCPTT
|
Mission Critical Push To Talk | One-click key mission |
| MCX | Mission Critical Service |
Mission critical services
|
| MDBV |
Maximum Data Burst Volume
|
The largest data burst |
| MEC | Mobile Edge Computing | Mobile edge computing |
| MFBR | Maximum Flow Bit Rate | Maximum stream bit rate |
| MIB | Master Information Block | Main system message |
| MICO | Mobile Initiated Connection Only | Only mobile-initiated connection |
| MIMO | Multiple-Input Multiple-Output | Multiple inputs and multiple outputs |
| mIoT | Massive Internet of Things | Large-scale Internet of Things |
| MM | Mobility Management | Mobile Management |
| MME | Mobility Management Entity | Mobility management entity |
| mMTC | Massive Machine Type of Communication | Massive machine communication |
| MNC | Mobile Network Code | Mobile network code |
| MO |
Mobile Originated
|
|
| MPLR | Maximum Packet Loss Rate | Maximum packet loss rate |
| MPS | Multimedia Priority Service |
Multimedia priority service
|
| MPTCP |
Multi-Path TCP Protocol
|
Multipath TCP protocol |
|
MR-DC
|
Multi RAT Dual Connectivity | Multi-RAT dual connection |
| MRU |
Mobility Registration Update
|
Mobility registration update |
| MSIN | Mobile Station Identification Number | Mobile station identification number |
| MSISDN | Mobile Subscriber International ISDN number | Mobile Subscriber International ISDN Number |
| MU-MIMO | Multiple User-Multiple input multiple output | More users, more entry and exit |
|
MT
|
Mobile Terminated
|
|
| MTC | Machine Type of Communication | Machine communication |
| N3IWF | Non-3GPP InterWorking Function | Non-3GPP interoperability |
| NaaS |
Network as a Service
|
Network as a service |
| NAI |
Network Access Identifier
|
Network access identifier |
| NAS | Non-Access Stratum | Non-access layer |
| NAT |
Network Address Translation
|
Network address translation |
| NB-IoT | Narrow Band Internet of Things | Narrowband Internet of Things |
| NDI | New Data Indicator | New data indication |
| NE | Network Element | NetEase |
| NEF | Network Exposure Function | Network exposure function |
| NF | Network Function | Network functions |
| NGAP | Next Generation Application Protocol | Next Generation Application Protocol |
| NGMN | Next Generation Mobile Networks | Next generation mobile communication network |
| NG-RAN | Next Generation Radio Access Network | Next-generation wireless access network |
| NID |
Network Identifier
|
Network Identification |
| NLoS | Non Line of Sight | Non-visual range |
| NMT | Nordic Mobile Telephone System | Nordic mobile phone system |
| Nnrf | NRF Service-based Interface | |
| NodeB | Base station | |
| NOMA | Non-Orthogonal Multiple Access | Non-orthogonal multiple access |
|
NPN
|
Non-Public Network | Non-public network |
| NR | New Radio | New empty mouth |
| NRF | Network Repository Function | Network repository features |
|
NRPPa
|
NR Positioning Protocol A
|
|
| NSA | Non-Standalone | Non-independent networking |
| NSI |
Network Slice Instance
|
Network slicing example |
| NSI-ID | Network Slice Instance identifier | Network slice instance identifier |
|
NSSAA
|
Network Slice-Specific Authentication and Authorization
|
|
| NSSAI | Network Slice Selection Assistance Information | Network slice selection assistance information |
| NSSF | Network Slice Selection Function | Network slice selection function |
| NSSP |
Network Slice Selection Policy
|
Network slicing selection strategy |
| NUL | Normal UL | Normal up |
|
NWDAF
|
Network Data Analytics Function
|
Network data analysis function
|
| O2I | Outdoor To Indoor | Outdoor cover indoor |
| O2O | Outdoor To Outdoor | Outdoor cover outdoor |
| O&M | Operation and Maintenance | Operation and maintenance |
| OAM | Operation Administration and Maintenance | Operation and maintenance management |
| OCC | Orthogonal Cover Code | Orthogonal coverage code |
| OCF | Online Charging Function | |
| OCF | Open Connectivity Foundation | |
| OCI | Overload Control Information | |
| OCS | Online Charging System | |
| OFDM | Orthogonal Frequency Division Multiplexing | Orthogonal frequency division multiplexing |
| OLC-H | Overload Control based on OCI Header | |
| PAGCH | Packet Access Grant Channel | |
| OBSAI | Open Base Station Architecture Initiative | Open Base Station Architecture Alliance |
| PAPR | Peak to Average Power Ratio | Peak-to-Average Power Ratio |
| PBCH | Physical Broadcast Channel | Physical broadcast channel |
| PCCH | Paging Control Channel | Paging control channel |
| PCF | Policy Control Function | Policy control function |
| PCG | Project Cooperation Group | Project Collaboration Group |
| PCH | Paging Channel | Paging channel |
| PCI | Physical-layer Cell Identities | Physical community logo |
| PCRF | Policy and Charging Rules Function | Policy and billing rules features |
|
PDB
|
Packet Delay Budget | Packet delay budget |
| PDC | Personal Digital Cellular | Personal digital cell |
| PDCCH | Physical Downlink Control Channel | Physical downlink control channel |
| PDCP | Packet Data Convergence Protocol | Packet Data Aggregation Protocol |
| PDN | Public Data Network | |
| PDN | Packet Data Network | Packet Data Network |
|
PDP
|
Packet Data Protocol | Packet Data Protocol |
| PDR | Packet Detection Rule | Packet detection rules |
| PDSCH | Physical Downlink Shared Channel | Physical downlink shared channel |
| PDU | Protocol Data Unit | Protocol data unit |
| PEI | Permanent Equipment Identifier | Permanent device identifier |
|
PER
|
Packet Error Rate | Packet error rate |
| PFCP | Packet Forwarding Control Protocol | Message forwarding control protocol |
| PFD | Packet Flow Description | Packet flow description |
| PGW | PDN Gateway | PDN gateway |
|
PGW-C
|
PDN Gateway CP | PDN gateway control panel |
| PHR | Power Headroom Report | Power Headroom Report |
| PLMN | Public Land Mobile Network | Public land mobile network |
| PMI | Precoding Matrix Indicator | Precoding matrix indication |
| PPI |
Paging Policy Indicator
|
Page policy instructions |
| PRACH | Physical Random-Access Channel | Physical random access channel |
| PRA |
Presence Reporting Area
|
|
| PRB | Physical Resource Block | Physical resource blocks |
| PRG | Precoding Resource block Group | Precoding resource block group |
| PS | Packet Switch | Package exchange |
| PSA | PDU Session Anchor | PDU session anchor point |
| PSS | Primary Synchronization Signal | Main synchronization signal |
| PT-RS | Phase Tracking Reference Signal | Phase tracking reference signal |
| PUCCH | Physical Uplink Control Channel | Physical uplink control channel |
| PUSCH | Physical Uplink Shared Channel | Physical uplink shared channel |
| QCI | QoS Class Identifier | QoS Category Identifier |
| QCL | Quasi Colocation | Quasi-co-site |
| QFI | QoS Flow Identifier | QoS stream identifier |
| QIB | Quality Indicator Bit | |
| QNC | QoS Notification Control | QoS notification control |
| QoE | Quality of Service | Quality of experience |
| QoS | Quality of Service | Quality of service |
| QSTA | Quality Station | |
| RA |
Registration Area
|
Registration area |
| RAB | Radio Access Bearer | Wireless access bearer |
| RACH | Random Access Channel | Random access channel |
| (R)AN | (Radio) Access Network | (Wireless) Access Network |
| RAR | Random Access Response | Random access response |
| RAT | Radio Access Technology | Wireless access technology |
| RB | Resource Block | Resource blocks |
| RBG | Resource Block Group | Resource Block Group |
| RDI | Reflective QoS flow to DRB mapping Indication | Reflect QoS stream to DRB mapping identifier |
| RE | Resource Element | Resource elements |
| RE | Radio Equipment | Radio equipment |
| REC | Radio Equipment Control | Radio equipment control |
| REG | Resource-Element Group | Resource element group |
| Rel-15 | Release 15 | Version 15 |
| REST |
REpresentational State Transfer
|
|
| RF | Radio Frequency | Radio frequency |
|
RFSP
|
RAT/Frequency Selection Priority
|
RAT/frequency selection priority
|
| RG |
Residential Gateway
|
Home gateway |
| RI | Rank Indicator | Rank indication |
| RIV | Resource Indication Value | Resource Indicator Value |
| RLC | Radio Link Control | Wireless link control |
| RM | Registration Management | Registration Management |
| RMa | Rural Macro cell | Rural Hong Community |
| RMSI | Remaining Minimum System Information | Remaining system information |
| RNA | RAN based Notification Area | RAN-based notification area |
| RNC | Radio Network Controller（3G） | Wireless network controller |
| RNL | Radio Network Layer | Wireless network layer |
| RNTI | Radio Network Temporary Identity | Wireless network temporary identifier |
| ROHC | robust header compression | Robust head compression |
| RQA | Reflective QoS Attribute | Reflect QoS properties |
| RQI | Reflective QoS Indication | Reflective QoS logo |
| RRC | Radio Resource Control | Wireless resource management |
| RRU | Remote Radio Unit | RF remote unit |
|
RSN
|
Redundancy Sequence Number | Redundant serial number |
| RSRP | Reference Signal Receiver Power | Reference signal reception power |
| RV | Redundancy Version | Redundant version |
| SA | Standalone | Independent networking |
|
RSN
|
Redundancy Sequence Number
|
|
|
SA NR
|
Standalone New Radio | A new independent air port |
| SAP | Service Access Point | Service access point |
| SARI |
Service Area Restriction Information
|
|
| SBA |
Service Based Architecture
|
Service-based architecture |
|
SBG
|
Session Border Gateway | Session Border Gateway |
| SBI | Service Based Interface |
Service-based interface
|
| SCEF | Service Capability Exposure Function | Business capability exposure function |
| SCG | Secondary Cell Group | Auxiliary community group |
| SCP | Service Communication Proxy |
Service Communication Agent
|
| SCTP | Stream Control Transmission Protocol | Flow control transmission protocol |
| SD | Slice Differentiator | Slice Divider |
| SDAP | Service Data Adaptation Protocol | Service data adaptation protocol |
| SDF | Service Data Flow | Business data flow |
| SDL | Supplementary DL | Supplement the downstream |
|
SDN
|
Software Defined Networking | Software-defined networking |
| SDU | Service Data Unit | Service data unit |
| SEAF | SEcurity Anchor Functionality | Security anchor function |
| SEPP | Security and Edge Protection Proxy |
Security Edge Protection Agent
|
| SFI | Slot Format information | Time slot format information |
| SFN | System Frame Number | System frame number |
|
SGSN
|
Serving GPRS Support Node | Service GPRS support nodes |
| SGW | Serving Gateway | Service gateway |
| SI | System Information | System Message |
| SIB | System Information Block | System information block |
| SIDF | Subscription Identifier De-concealing Function | Subscribe to identifiers to hide function |
|
SIP
|
Session Initiation Protocol | Session Initiation Protocol |
|
SLA
|
Service Level Agreement | Service Level Agreement |
| SLIV | Start and Length Indicator Value | Start and length indication |
| SM | Session Management | Session Management |
| SMF | Session Management Function | Session Management Function |
| SMP | SBI Message Priority | |
| SMS | Short Message Service | Short message service |
| SMSF | Short Message Service Function | Short message service function |
| SN | Sequence Number | Serial number |
|
SNPN
|
Stand-alone Non-Public Network
|
|
| S-NSSAI | Single Network Slice Selection Assistance Information | Single network slice selection assistance information |
| SR | Scheduling Request | Scheduling request |
| SRI | SRS Resource Indicator | Detection reference signal resource indication |
| SRS | Sounding Reference Signal | Detect reference signal |
| SRVCC | Single Radio Voice Call Continuity | Single wireless voice call continuity |
| SSB | SS/PBCH block | Synchronous broadcast resource blocks |
| SSC | Session and Service Continuity | Session and Service Continuity |
|
SSCMSP
|
Session and Service Continuity Mode Selection Policy
|
Session and Service Continuity Mode Selection Policy
|
| SSS | Secondary Synchronization Signal | Auxiliary synchronization signal |
| SST | Slice/Service Type | Slice/Business Type |
| SUCI | Subscription Concealed Identifier | Signing Encryption Identifier |
| SUL | Supplementary UL | Supplement upward |
| SUPI | Subscription Permanent Identifier | Contract Permanent Identifier |
| TA | Timing Advance | Time advance |
| TAC | Tracking Area Code | Tracking area code |
| TACS | Total Access Communication System | Full access communication system |
| TAI | Tracking Area Identity | Tracking area identification |
| TAU | Tracking Area Update | Tracking area update |
| TB | Transport Blocks | Transfer block |
| TBS | Transport Blocks Size | Transport block size |
| TCI | Transmission Configuration Indication | Transmission configuration instructions |
| TCP | Transmission Control Protocol | Transmission Control Protocol |
| TDD | Time Division Duplex | Time division duplex |
| TDM | Time Division Multiplexing | Time-division multiplexing |
| TEID | Tunnel EndPoint Identifier | |
| TIA | Telecommunications Industry Association | Communications Industry Association |
| TLS | Transport Layer Security | Transport Layer Security Protocol |
| TM | Transparent Mode | Transparent mode |
| TMSI |
Temporary Mobile Subscription Identifier
|
Temporary mobile contract signing logo |
| TNAN |
Trusted Non-3GPP Access Network
|
Trusted non-3GPP access network |
| TNAP |
Trusted Non-3GPP Access Point
|
Trusted non-3GPP access points |
|
TNGF
|
Trusted Non-3GPP Gateway Function
|
Trusted non-3GPP gateway features |
| TNL | Transport Network Layer | Transport network layer |
|
TNLA
|
Transport Network Layer Association
|
Transport network layer association |
| TPC | Transmit Power Control | Transmission power control |
| TPMI | Transmit Precoding Matrix Indicator | Transmission precoding matrix indication |
| TRS | Tracking Reference Signal | Tracking reference signals |
| TSC |
Time Sensitive Communication
|
Time-sensitive communication |
| TSN |
Time Sensitive Networking
|
Time-sensitive network |
|
TSP
|
Traffic Steering Policy | Traffic bootstrap strategy |
| TTI | Transmission Time Interval | Transmission time interval |
| TWAP |
Trusted WLAN Access Point
|
|
|
TWIF
|
Trusted WLAN Interworking Function
|
|
| TxRU | Transceiver Unit | Transceiver unit |
| UAC | Unified Access Control | Unified access control |
| UCI | Uplink Control Information | Uplink control information |
| UDM | Unified Data Management | Unified data management |
| UDP | User Datagram Protocol | User Datagram Protocol |
| UDR | Unified Data Repository | Unified Data Warehouse |
| UDSF | Unstructured Data Storage Function | Unstructured data storage capabilities |
| UE | User Equipment | User terminal |
| UL | Uplink | Up |
| UL CL | Uplink Classifier | Uplink classifier |
| UL-SCH | Uplink Shared Channel | Uplink shared channel |
| UM | Unacknowledged Mode | No confirmation mode |
| UMa | Urban Macro cell | Urban macro community |
| UMi | Urban Microcell | Urban micro-districts |
| UP | User Plane | User plane |
| UPF | User Plane Function | User surface function |
| URI | Uniform Resource Identifier | |
| URLLC | Ultra Reliable Low Latency Communication | Low latency high reliability communication |
|
URRP-AMF
|
UE Reachability Request Parameter for AMF | UE can reach request parameters of AMF |
|
URSP
|
UE Route Selection Policy | UE routing policy |
| URN | Uniform Resource Name | |
| USS | UE-specific Search Space | UE dedicated search space |
| UTC | Coordinated Universal Time | Coordinate the world time |
|
V2X
|
Vehicle-to-Everything | Internet of Vehicles |
| VID |
VLAN Identifier
|
VLAN ID |
|
VLAN
|
Virtual Local Area Network | Virtual LAN |
| VoLTE | Voice over Long-Term Evolution | LTE voice |
| VoNR | Voice over New Radio | NR Voice |
|
V-PCF
|
Visited Policy Control Function
|
|
| VPLMN | Visited PLMN | Visit PLMN |
| VR | Virtual Reality | Virtual reality |
| VRB | Virtual Resource Block | Virtual resource block |
|
V-SMF
|
Visited SMF
|
|
|
W-5GAN
|
Wireline 5G Access Network
|
Wired 5G access network |
|
W-5GBAN
|
Wireline BBF Access Network
|
Wired BBF access network
|
|
W-5GCAN
|
Wireline 5G Cable Access Network
|
Cable 5G cable TV access network
|
|
W-AGF
|
Wireline Access Gateway Function
|
Wired access gateway function
|
| WCDMA | Wideband Code Division Multiple Access（3G） | Broadband code division multiple access |
| WSN | Wireless sensor network | |
| WTTx | wireless-to-the-x | Wireless fixed broadband |
| ZP CSI-RS | Zero Power CSI-RS | Zero power channel status information reference signal |
