5G Acronym List Acronym 5GC 5QI AAS BS ACK AM AMBR AMC AMF AP ARP ARQ AS ASN.1 BA BCH BLER BPSK BSR BWP CA CB CBG CCCH CCE CE CID CM CMAS COT CP CP CQI CRC CRI C‐RNTI CS CSI CSI‐RS CSI‐RSRP CSI‐RSRQ CSI‐SINR CS‐RNTI CU CW DC DCCH DCI DFT‐s‐OFDM DL DL‐SCH DM‐RS DNN DRB DRX DU EHPLMN EN‐DC EPC EPRE EPS ETWS E‐UTRA E‐UTRAN F1AP F1‐C F1‐U FDD FEC FFS FMC GERAN GF GFBR gNB gNB‐CU gNB‐DU GNSS GSCN GSM NSSAI O&M OFDM OSI Meaning 5G Core Network 5G QoS Identifier Active Antenna System BS Acknowledgement Acknowledged Mode Aggregated Maximum Bit Rate Adaptive Modulation and Coding Access and Mobility Management Function Application Protocol Address Resolution Protocol Automatic Repeat request Access Stratum Abstract Syntax Notation One Bandwidth Adaptation Broadcast Channel Block Error Rate Binary Phase Shift Keying Buffer Status Report Bandwidth part Carrier Aggregation Code block Code block group Common Control Channel Control channel element Control Element Context Identifier Connection Management Commercial Mobile Alert Service Channel Occupancy Time Cyclic prefix Control Plane Channel quality indicator Cyclic redundancy check CSI‐RS Resource Indicator Cell RNTI Configured Scheduling Channel state information Channel state information reference signal CSI reference signal received power CSI reference signal received quality CSI signal‐to‐noise and interference ratio Configured Scheduling RNTI Central Unit Codeword Dual Connectivity Dedicated Control Channel Downlink control information Discrete Fourier Transform‐spread‐Orthogonal Frequency Division Multiplexing Downlink Downlink Shared Channel Dedicated demodulation reference signals Data Network Name (Same as APN name in LTE) Data Radio Bearer carrying user plane data Discontinuous Reception Distributed Unit Equivalent Home Public Land Mobile Network EUTRA‐NR Dual Connectivity Evolved Packet Core Energy per resource element Evolved Packet System Earthquake and Tsunami Warning System Evolved Universal Terrestrial Radio Access Evolved Universal Terrestrial Radio Access Network F1 Application Protocol F1 Control plane interface F1 User plane interface Frequency Division Duplex Forward Error Correction For Further Study First Missing Count GSM/EDGE Radio Access Network Grant Free Guaranteed Flow Bit Rate NR Node B gNB Central Unit gNB Distributed Unit Global Navigation Satellite System Global Synchronization Raster Channel Global System for Mobile Communications Network Slice Selection Assistance Information Operation and Maintenance Orthogonal Frequency Division Multiplexing Other System Information PSS PTAG PTI PT‐RS PUCCH PUSCH PWS QAM QCL QFI QoS QPSK RACH RAN RAT RB RB RBG RE REG RF RI RIV RLC RMSI RNA RNAU RNL RNTI ROHC RPLMN RQA RQoS RRC RS RSRP RTP SA SAP SCell SCG SCH SCTP SDAP SDF SDU SFN SI SIB SM SMF SMTC SN SN SNN S‐NSSAI SpCell SPS SR SRB SRB SRS SS SSB SSC SS‐RSRP SS‐RSRQ SSS SS‐SINR STAG S‐TMSI SUL TA TAG TB TCI TCP TPC TDD TDM TM TNL TRP Primary synchronization signal Primary Timing Advance Group Procedure Transaction Identity Phase‐tracking reference signal Physical uplink control channel Physical uplink shared channel Public Warning System Quadrature Amplitude Modulation Quasi‐collocation QoS Flow ID Quality of Service Quadrature Phase Shift Keying Random Access Channel Radio Access Network Radio Access Technology Resource block Radio Bearer Resource block group Resource element Resource element group Radio Frequency Rank indication Resource indicator value Radio Link Control Remaining Minimum SI(System Information) RAN‐based Notification Area RAN‐based Notification Area Update Radio Network Layer Radio Network Temporary Identifier RObust Header Compression Registered Public Land Mobile Network Reflective QoS Attribute Reflective Quality of Service Radio Resource Control Reference signal Reference signal received power Real Time Protocol StandAlone Service Access Point Secondary Cell Secondary cell group Shared Channel Stream Control Transmission Protocol Service Data Adaptation Protocol Service Data Flow Service Data Unit System Frame Number System Information System Information Block Session Management Session Management Function SS block based RRM measurement timing configuration Sequence Number Secondary Node Serving Network Name Single NSSAI Special Cell Semi‐Persistent Scheduling Scheduling request Signalling Radio Bearer Signalling Radio Bearer carrying control plane data Sounding reference signal Synchronisation signal Synchronization Signal Block Session and Service Continuity SS reference signal received power SS reference signal received quality Secondary synchronization signal SS signal‐to‐noise and interference ratio Secondary Timing Advance Group SAE Temporary Mobile Station Identifier Supplementary Uplink Timing advance Timing advance group Transport Block Transmission Configuration Indicator Transmission Control Protocol Transmit Power Control Time Division Duplex Time division multiplexing Transparent Mode Transport Network Layer Transmission and Reception Point PBCH PCell PCH PDCCH PDCP PDSCH PRACH PSS PUCCH PUSCH PDU PHR PLMN PMI PRACH PRB PRG Physical Broadcast Channel Primary Cell Paging Channel Physical downlink control channel Packet Data Convergence Protocol Physical downlink shared channel Physical Random Access Channel Primary Synchronisation Signal Physical uplink control channel Physical uplink shared channel Protocol Data Unit Power Headroom Report Public Land Mobile Network Precoding Matrix Indicator Physical random access channel Physical resource block Physical resource block group TPC‐CS‐RNTTransmit Power Control‐Configured Scheduling‐RNTI TPC‐PUCCHTransmit Power Control‐Physical Uplink Control Channel‐RNT TPC‐PUSCHTransmit Power Control‐Physical Uplink Shared Channel‐RNTI TPC‐SRS‐ R Transmit Power Control‐Sounding Reference Symbols‐RNTI TTI Transmission Time Interval UCI Uplink control information UDP User Datagram Protocol UE User equipment UICC Universal Integrated Circuit Card UL Uplink UL‐SCH Uplink shared channel UM Unacknowledged Mode UP User Plane UPF User Plane Function URLLC Ultra‐Reliable and Low Latency Communications URN Uniform Resource Name UTC Coordinated Universal Time UTRAN Universal Terrestrial Radio Access Network X‐MAC Computed MAC‐I Xn network interface between NG‐RAN nodes Xn‐C Xn‐Control plane (control plane interface between NG‐RAN and 5GC) Xn‐U Xn‐User plane (user plane interface between NG‐RAN and 5GC) XnAP Xn Application Protocol