初学5G知识时，常常发现一句完整的话中夹杂着各种英文缩写，本来还能看懂的文字加上这些名词后，一下子就不知道具体要表达的内容了。
学了一个月左右，索性将学习过程中碰到的缩略语，一个不漏的整理下来，并在后续的学习中不断的增加其内容，希望于通过这篇博客找到所有的缩略语解释。
由于初学5G，能力有限，部分中文翻译因把握不准所有没有填写，其他填写的内容如有描述不准确的，还请广大网友们指正。
（持续更新：最新更新于2021年3月24日）
| 5GC | 5G Core Network | 5G核心网 |
| 5GMM | 5G Mobility Management | 5GS移动性管理 |
| 5GS | 5G System | 5G系统 |
| 5GSM | 5G Session Management | 5GS会话管理 |
| 5G-AN | 5G Access Network | 5G接入网 |
| 5G-RG | 5G-Residential Gateway | 5G家庭网关 |
| 5G-S-TMSI | 5G S-Temporary Mobile Subscription Identifier | 5G S - 临时移动签约标识 |
| 5QI | 5G QoS Identifier | 5G QoS标识 |
| ADC | Application Detection and Control | 应用检测和控制功能 |
| AF | Application Function | 应用功能 |
| AMBR | Aggregate Maximum Bit Rate | 最大的聚合比特率 |
| AMF | Access and Mobility Management Function | 接入和移动管理功能 |
| AN | Access Network | |
| ANDSF | Access Netowrk Discovery and Selection Functionality | 接入网发现和选择功能 |
| ANDSP | Access Network Discovery and Selection Policy | 接入网发现和选择策略 |
| APN | Access Point Name | 接入点名称 |
| ARP | Allocation and Retention Priority | 分配和保留优先级 |
| AS | Access Stratum | 接入层 |
| ASP | Application Service Prodier | 应用服务提供商 |
| ATM | Asynchronous Transfer Mode | 异步传输模式 |
| ATSSS | Access Traffic Steering, Switching, Splitting | 接入流量导向、切换和切分 |
| ATSSS-LL | ATSSS Low-Layer | ATSSS低层 |
| AUSF | Authentication Server Function | 鉴权服务器功能 |
| BAR | Buffering Action Rule | PFCP缓存动作规则 |
| BD | Billing Domain | 计费域 |
| BP | Branching Point | |
| BSF | Binding Support Function | 绑定支持功能 |
| CAG | Closed Access Group | 闭合访问组 |
| CAPIF | Common API Framework for 3GPP northbound APIs | 3GPP北向API的公共API框架 |
| CBC | Cell Broadcast Center | 小区广播中心 |
| CBE | Cell Broadcast Entity | 小区广播实体 |
| CCS | Converged Charging System | 融合计费系统 |
| CDF | Charging Data Function | 计费数据功能 |
| CDR | Call Detail Record | 计费数据记录 |
| CGF | Charging Gateway Function | 计费网关功能 |
| CHF | Charging Function | |
| CM | Connection Management | |
| CP | Control Plane | 控制面 |
| CTF | Charging Trigger Function | 计费触发功能 |
| CSCF | Call Session Control Function | 呼叫会话控制功能 |
| CUPS | Control and User Plane Seperation | |
| DL | Data Layer | 数据层 |
| DL | Down Link | 下行链路 |
| DRB | Dedicated Radio Bearer | 数据无线承载 |
| DRX | Discontinuous Reception | 不连续接收 |
| DN | Data Network | 数据网络 |
| DNAI | DN Access Identifier | 数据网接入标识 |
| DNN | Data Network Name | |
| DRB | Data Radio Bearer | 数据无线承载 |
| EAP | Extensive Authentication Protocol | |
| EBI | EPS Bearer Identity | EPS承载标识 |
| EIR | Equipment Identity Register | 设备身份寄存器 |
| EPC | Evolved Packet Core | 分组核心网 |
| ePDG | evolved Packet Data Gateway | 演进的分组数据网关 |
| EPS | Evolved Packet System | 演进分组系统 |
| F-SEID | Fully Qualified Session Endpoint Identifier | |
| F-TEID | Fully Qualified Tunnel Endpoint Identifier | |
| FAR | Forwarding Action Rule | 转发动作策略 |
| FQDN | Fully Qualified Domain Name | 完全合格的域名 |
| FTUP | F-TEID allocation in the UP function | |
| GBR | Guaranteed Bit Rate | 保证流速率 |
| gNB | gNodeB | |
| GFBR | Guaranteed Flow Bit Rate | 保证的流比特速率 |
| GPSI | General Public Subscription Identifer | |
| GSMA | Global System for Mobile Communication Association | |
| GUAMI | Globally Unique AMF Identifier | |
| GUTI | Globally Unique Temporary Identifier | |
| IDL | Interface Definition Language | 接口定义语言 |
| I-UPF | Intermediate UPF | |
| LADN | Local Area Data Network | 局域数据网 |
| LPP | LTE Positioning Protocol | |
| MAR | Multi-Access Rule | |
| MBR | Max Bit Rate | 最大比特速率 |
| MCC | Mobile Country Code | |
| MDBV | Maximum Data Burst Volume | 最大数据突发量 |
| MICO | Mobile Initiated Connection Only | 仅终端发起连接模式 |
| MIME | Multi-Purpose Internet Mail Extensions | |
| MIMO | Multiple-Input Multiple-Output | |
| MFBR | Maximum Flow Bit Rate | 最大流比特速率 |
| MM | Massive MIMO | |
| MNC | Mobile Network Code | |
| MO | Mobile Originated | |
| MT-SMS | Mobile Terminated - Short Message Service | |
| NAS | Non-Access Stratum | 非接入层 |
| NAS-MM | NAS Mobile Management | |
| N3IWF | Non-3GPP InterWorking Function | |
| NEF | Network Exposure Function | |
| NG-RAN | Next-Generation Radio Access Network | |
| NGAP | Next Generation Application Protocol | |
| NRF | Network Repository Function | |
| NSSAI | Network Slice Selection Assistance Information | |
| NSSF | Network Slice Selection Function | |
| NSSP | Network Slice Selection Policy | 网络切片选择策略 |
| NWDAF | Network Data Analytics function | 网络状态分析功能 |
| OAI | OpenAPI Initiative | |
| OAS | OpenAPI Specification | OpenAPI规范 |
| OCS | Online Charging System | |
| PCC | Policy and Charging Control | 策略和计费控制 |
| PCF | Policy Control Function | 策略控制功能 |
| PCO | Protocol Configuration Options | |
| PCRT | Policy Control Request Triggers | 策略控制请求触发条件 |
| PD | Prefix Delegation | 前缀委托 |
| PDB | Packet Delay Budget | 数据包延时预算 |
| PDCP | Packet Data Convergence Protocol | 分组数据汇聚协议 |
| PDI | Packet Detection Information | 数据包检测信息 |
| PDR | Packet Detection Rule | 数据包检测规则 |
| PDU | Protocol Data Unit | |
| PEI | Permanent Equipment Identifier | |
| PER | Packet Error Rate | 数据包误码率 |
| PFCP | Packet Forwarding Control Protocol | |
| PFD | Packet Flow Description | 数据流描述 |
| PLMN | Public Land Mobile Network | |
| PDCP | Packet Data Convergence Protocol | |
| PDN | Public/Packet Data Network | |
| PDR | Packet Detection Rule | 数据包检测规则 |
| PDU | Packet Data Unit | 用户面流量 |
| PPF | Paging Proceed Flag | |
| PSA | PDU Session Anchor | |
| PSI | Policy Segment Identifier | 策略分段标识 |
| PRA | Presence Reporting Area | |
| QER | QoS Enforcement Rule | QOS执行规则 |
| QCI | QoS Class Identifier | QoS类标识 |
| QFI | QoS Flow Identifier | QoS流标识 |
| QNC | QoS Notification Control | QoS通知控制 |
| RAN | Radio Access Network | 无线接入网 |
| RFSP | RAT Frequency Selection Priority | |
| RLC | Radio Link Control | |
| RM | Register Management | |
| RQA | Reflective QoS Attribute | 反射式QoS属性 |
| RQI | Reflective QoS Indicator | |
| RRC | Radio Resource Control | 无线资源控制 |
| RRM | Radio Resource Management | |
| RA | Radom Access | |
| RAT | Radio Access Technology | 无线接入技术 |
| S-NSSAI | Single Network Slice Selection Assistance Information | |
| SCTP | Stream Control Transmission Protocol | |
| SDAP | Service Data Adaptation Protocol | 服务数据适配协议 |
| SDF | Service Data Flow | 业务数据流 |
| SEID | Session Endpoint Identifier | |
| SLAAC | Stateless Address Auto-configuration | |
| SM | Session Management | 会话管理 |
| SMF | Session Management Function | |
| SMS | Short Message Service | |
| SMSF | Short Message Service Function | |
| SOR | Steering of Roaming | 漫游导引 |
| SSC | Session and Service Continuity | 会话和服务连续性 |
| SSCMSP | SSC Mode Selection Policy | SSC模式选择策略 |
| SUCI | Subscription Concealed Identifier | |
| SUPI | Subscription Permanent Identifier | |
| TAC | Tracking area code | |
| TAI | Tracking Area Identity | |
| TDF | Traffic Detection Function | |
| TMSI | Temporary Mobile Subscriber Identity | |
| UDM | Unified Data Management | |
| UDR | Unified Data Repository | |
| UDSF | Unstructured Data Storage Function | |
| UE | User Equipment | 用户设备 |
| UE-TLNA | User Equipment - Transport Network Layer Association | |
| UL | Up Link | 上行链路 |
| UL-CL | Uplink Classifier | 上行分类器 |
| UPF | User Plane Function | |
| URR | Usage Reporting Rule | PFCP使用报告规则 |
| URSP | UE Route Selection Policy | UE路由选择策略 |
| W-5GAN | Wireline 5G Access Network | |
| WLANSP | WLAN Selection Policy |