常使民无知无欲, 使夫知者不敢为也. 也无为, 则无不治.
https://www.jianshu.com/p/f9c013ac8eff
>常使民无知无欲, 使夫知者不敢为也. 也无为, 则无不治.
5G缩写表
词汇
- AGC: Automatic Gain Control
- AAU: Active Antena Unit, 有源天线单元。 BBU的部分物理层处理功能与原RRU及无线合并为AAU
- CU: Centralized Unit, 集中单元。 原BBU的非实时部分将分割出来,重新定义为CU,负责处理非实时协议和服务。
- DU: Distrubute Unit, 分布单元。 BBU的剩余功能重新定义为DU,负责处理物理层协议和实时服务。
- EPC: 4G核心网
- MEC: Mobile Ddge Computing 移动网络边界计算平台
- 5G: 5th generation
- eMBB: 增强移动宽带
- URLLC: 低时延高可靠
- mMTC: 海量大连接
- Millimeter Wave: 毫米波
- Massive MIMO: 大规模天线技术
- NFV: Network Function Virtualization. 网络功能虚拟化
- NFV: Software Defined Network. 软件定义网络
- NR: New Radio. 新空口技术
- PDCP: 用户面在分组数据汇聚协议层
- Fronthaul: AAU-DU,前传。 传递无线侧网元设备AAU和DU间的数据
- Middlehaul: DU-CU,中传。 传递无线侧网元设备DU和CU间的数据
- Backhaul: CU-NetCore,回传。 传递无线侧网元设备CU和核心网网元间的数据
- ICN: Information core network. 信息中心网络
- NSA: Non Standalone 非独立组网
- SA: Standalone 独立组网
- CCFD: Co-time Co-frequency Full Duplex. 5G全双工
- CDN: Content Delivery Network. 内容分发网络
- CoMP: Coordinated Multiple Points Transmission/Reception。多点协作传输
- RRU:
- PHY:
- 5GC: 5G Core Network
- MME: Mobility Management Entity. 移动管理实体
- PGW: PDN Gateway. PDN网关
- SBA: Service Base Architecture. 基于服务的架构
- NEF:
- NRF
- PCF
- UDM
- AF: Application Function
- AUSF: Authentication Server Function 认证服务器功能
- CP: Control Plan
- DN: DataNetwork
- SRB: Signalling Radio Bearer, 承载控制面数据(Control Plane Data, RRC消息和NAS消息)
- DRB: Data Radio Bearer
- DCI: Downlink Control Information
- UPD: User Plan Data
- CPD: Control Plane Data
- LC: Logical Channel, 逻辑信道
- TC: Transport Channel, 传输信道 UL-SCH, DL-SCH
- C-RNTI: Cell Radio Network Temporary Identifier
- PC: Physical Channel, 物理信道 PUSCH, PDSCH
- EIR: Equipment identity Register
- GPSI: Generic Public Subscription Identifier
- GTP-U: GPRS Tunneling Protocol - User Plane
- GUTI: Globally Unique Temporary Identifier
- IMS: IP Multimedia Subsystem
- MO: Mobile Originated
- MT: Mobile Terminated
- NEF: Network Exposure Function 网络能力开放
- NG-RAN: Next Generation RAN
- NRF: Network Repository Function 网络注册功能
- NSSF: Network Slice Selection Function 网络切片选择功能
- PFCP: Packet Forwarding Control Protocol
- PCF: Policy Control Function 策略控制功能
- PDU: Package Data Unit
- PEI: Permanent Equipment Identity
- RNTI: Radio Network Temporary Identity
- SEPP: Security Edge Protection Proxy
- SMF: Session Management Function
- SMSF: SMS Function
- BCH: Broadcast Channel
- SUPI: Subscription Permantent Identifier
- UDM: Unified Data Management
- UDR: Unified Data Respository
- QoS: Quality of Service
- CG: Cell Group
- NCGI: NR Cell Global Identifier
- SSB: Synchronisation Signal Block
- SMS: Short Message Service 短信业务
- SMC: Short Message Control
- CSI-RS: Channel-State information reference signal, 同步信号块
- BWP: Bandwidth Part 部分带宽
- NCR: Neighbour Cell Relation
- NID: Network Identifier
- PCH: Paging Channel
- PCI: Physical Cell Identifier
- PDCCH: Physical Downlink Control Channel
- PDSCH: Physical Downlink Shared Channel
- PLMN Cell: Public Land Mobile Network Cell
- PRACH: Physical Random Access Channel, 随机接入物理信道
- MOCN: Multi-Operator Core Network, 即一套无线网络可以同时连接到多个运营商的核心网节点,实现多家运营商共享同一套无线网络,这种共享方式的优点是可以在节省投资和网络独立两个方面找到 个平衡点,两者得到很好的兼顾,,中国联通和中国电信5G网络共建共享的方式就是采用MOCN.
- OFDM: Orthogonal Frequency Division Multiplexing,正交频分复用
- ZC: Zadoff-Chu Series, ZC序列
- CAZAC: Constant Amplitude Zero Auto-Correlation
- PUCCH: Physical Uplink Control Channel
- PUSCH: Physical Uplink Shared Channel
- TA: Timing Advance
- TAI: Tracking Area Identity
- TAC: Tracking Area Code
- NAS: Non-Access Stratum, 非接入层
- AS: Access Stratum,接入层 无线接入网采用的协议
- RRC: Radio Resource Control 无线资源控制协议。处理UE和ENodeB之间控制平面的第三层信息
- SCTP: Stream Control Transmission Protocol
- RLC: Radio Link Control
- PDCP: Packet Data Convergence Protocol, 分组数据汇聚协议。只负责处理分组业务数据。
- PHY: 层一,物理层
- MAC: Medium Access Control 层二,媒体接入控制层
- MCG: Master Cell Group, 主小区组
- SCG: Secondary Cell group, 辅小区组
- PCell: Primary Cell,主小区
- SCell: Secondary Cell, 辅小区
- PSCell: Primary Secondary Cell,主辅小区
- RACH: Random Access Channel, 随机接入信道, 是一种上行传输信道
- RAN: Radio Access Network
- AMF: Access and Mobility Management Function 接入和移动性管理
- SMF:
- UE: User Equipment
- 5GS: 5G System
- ®AN: (Radio) Access Network
- UPF: User Plan Function
- USIM: Universal Subscriber Identity Module