Sunday, May 01, 2011

3GPP相關縮寫、名詞速查表

Last Updated: 11 SEP 2019; 446 entries.

This page is only a personal study note.
Please see 3GPP 21.905 for 3GPP official document.
You might also be interested in "3GPP規格研究經驗分享"

Index
[A], [B], [C], [D], [E], [F], [G], [H], [I], [J], [K], [L], [M], [N], [O], [P], [Q], [R], [S], [T], [U], [V], [W], [X], [Z], [123],

A.....(Back to the index)
ABNF: augmented Backus-Naur form
ACK: acknowledgement
ACR: Anonymous Communication Rejection (24.611)
ACTIVE SET UPDATE: RRC Message. See 25.331
ACTIVE SET UPDATE COMPLETE: RRC Message. See 25.331
ACTIVE SET UPDATE FAILURE: RRC Message. See 25.331
AG: Absolute Grant (25.331)
AGCH: [GSM] Access Grant CHannel. downlink only, used to allocate a Dedicated Control CHannel (45.002)
A-GNSS: Assisted Global Navigation Satellite System (OMA SUPL)
AICH: Acquisition Indicator CHannel (25.331)
AKA: Authentication and Key Agreement
AM: Acknowledged Mode
AMBR: [LTE] Aggregate Maximum Bit Rate (23.401)
AMC: adaptive modulation and coding
AMPS: Analogue Mobile Phone System
AN: Access Network (23.002)
aor: The aor attribute contains a URI which is the address-of-record this registration refers to. (RFC3680)(used in 24.229)(see RFC3261 for detailed definition)
APN: Access Point Name
ARP: [LTE] Allocation and Retention Priority (36.300)
ARQ: Automatic Repeat Request
AS: access stratum
AS: [VoLTE] Application Server
ATCF: Access Transfer Control Function (24.229)
AUTN: Authentication Token (33.102)
AVP: Audio Video Profile (RFC3551)
AVPF: AVP Feedback Profile (26.114)

B.....(Back to the index)
BCCH: Broadcast Control Channel (25.321)
BCFE: RRC Broadcast Control Function Entity (25.331)
BCH: [transport channel] Broadcast Channel (25.321/36.300)
BGCF: Breakout Gateway Control Function (24.229)
BM-SC: Broadcast-Multicast - Service Centre (26.237)
BSC: Base Station Controller (23.002)
BSD: Bucket Size Duration
BSIC: [GSM] Base transceiver station identity code (45.002)
building block method: used to describe the layer 3 procedures (24.008)
B2BUA: Back-to-back user agent (24.229/RFC3261)

C.....(Back to the index)
CA: Carrier Aggregation (36.300)
CBRA: Contention Based Random Access
CC: Call Control (24.008)
CC: [LTE][CA]Component Carriers (36.300)
CCCH: Common Control Channel (25.321)
CCO: Cell Change Order (36.331 used abbr.)
CD: Communication Deflection (24.604)
CDIV: Communication Diversion (24.605)
CDIVN: Communication Diversion Notification
CELL CHANGE ORDER FROM UTRAN: RRC message. See 25.331
CELL UPDATE: RRC message. See 25.331
CELL UPDATE CONFIRM: RRC message. See 25.331
CFB: Call Forwarding on Mobile Subscriber Busy (22.004)
CFB: [VoLTE] Communication Forwarding Busy (24.604)
CFNL: [VoLTE] Communication Forwarding on Not Logged-in (24.604)
CFNR: [VoLTE] Communication Forwarding No Reply (24.604)
CFNRc: [VoLTE] Communication Forwarding on subscriber Not Reachable (24.604)
CFRA: Contention Free Random Access
CFU: Call Forwarding Unconditional (22.004)
CFU: [VoLTE] Communication Forwarding Unconditional (24.604)
CI: Cell Identity (36.300)
CIF: Carrier Indicator Field (36.213)
CLIP: Calling Line Identification Presentation (22.004)
CLIR: Calling Line Identification Restriction (22.004)
CTCH: Common Traffic Channel (25.321)
CM: Connection Management (24.007)
CMAS: Commercial Mobile Alert System (36.331)
CMR: Codec Mode Request (RFC4867)
CN: Core Network (23.002)
CN: comfort noise (RFC4867)
CNAME: canonical name (RFC3550)
CONF: [VoLTE] CONFerence (24.605)
CP: Cyclic Prefix (36.300)
CPICH: Common Pilot Channel (25.211)
CQI: Channel Quality Indicator
CRC:Cyclic Redundancy Check
CRS: Cell-specific reference signals (36.211)
CS: Circuit Switched
CS call Circuit Switched Call (俗稱講電話)
CSCF: Call Session Control Function (23.228)
CSG: [LTE][FEMTO]Closed Subscriber Groups (36.300)
CSG ID: [LTE][FEMTO] CSG identity (36.300)

D.....(Back to the index)
DBPSCH: Dedicated Basic Physical Subchannel (44.060)
D/C: [RLC] Data/Control (36.322)
DCCH: Common Control Channel (25.321)
DCFE: RRC Dedicated Control Function Entity (25.331)
DCH: Dedicated Channel (25.321)
DDF: [OMA] Device Description Framework (24.305)
DeNB: Donor eNB (36.300)
DFT: Discrete Fourier Transform
DFTS-OFDM: Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing (36.300)
DHCP: Dynamic Host Configuration Protocol
DL: downlink
DL PCC: [CA] Downlink Primary Component Carrier (36.300)
DL SCC: [CA] Downlink Secondary Component Carrier (36.300)
DL-SCH: [LTE][transport channel] Downlink Shared Channel (36.300)
DOWNLINK DIRECT TRANSFER: RRC message. See 25.331
downlink DPCH: Downlink Dedicated Physical Channel (25.211)
DRB: Data Radio Bearers
DRX: Discontinuous Reception (LTE's in 36.304)
DSCP: DiffServ Code Point
DTCH: Dedicated Traffic Channel (25.321)
D-TxAA: Double Transmit Antenna Array
DUT: Device under testing (俗稱: 測試機)

E.....(Back to the index)
E: [RLC] Extension bit (36.322)
EAB: Extended Access Barring (23.122)(22.011)
EARFCN: E-UTRA Absolute Radio Frequency Channel Number (36.101)
early media: media sent before a communication is established (from 24.628)
ECGI: [LTE] E-UTRAN Cell Global Identifier (36.300)
ECM: [LTE] Evolved Packet System Connection Management (36.300)
ECM-CONNECTED: [LTE] The UE location is known in the MME with an accuracy of a serving eNodeB ID. The mobility of UE is handled by the handover procedure. (23.401)
ECM-IDLE: [LTE] A UE is in ECM-IDLE state when no NAS signalling connection between UE and network exists. (23.401)
E-DCH: Enhanced Dedicated Channel (25.321)
EEA: EPS Encryption Algorithm (33.401)
E-HICH: E-DCH Hybrid ARQ Indicator Channel (25.211)
EIA: EPS Integrity Algorithm (33.401)
EIR: Equipment Identity Register (23.002)
eKSI: Key Set Identifier for E-UTRAN (24.301)
EMM: [LTE] Evolved Packet System MobilityManagement (36.300)
EMM-DEREGISTERED: [LTE] the EMM context in MME holds no valid location or routing information for the UE. The UE is not reachable by a MME, as the UE location is not known.(LTE Detach後或Attach前的狀態)(23.401)
EMM-REGISTERED: [LTE] by a successful Tracking Area Update procedure for a UE selecting an E-UTRAN cell from GERAN/UTRAN or by an Attach procedure via E-UTRAN (成功註冊到LTE網路後的狀態)(23.401)
eNB: [LTE] E-UTRAN NodeB (36.300)
eNB ID: [LTE] eNB Identifier (36.300)
EPC: Evolved Packet Core (36.300)
ePDG: [VoWiFi] Evolved Packet Data Gateway (23.402)
EPRE: [5G] Energy per resource element (38.214)
EPS: Evolved Packet System
E-RGCH: E-DCH Relative Grant Channel (25.211)
ESM:EPS Session Management (LTE: 24.301)
ETWS: Earthquake and Tsunami Warning System (36.300)
event 1A: a Primary CPICH enters the reporting range (25.331)
event 1B: a primary CPICH leaves the reporting range (25.331)
event 1C: a non-active primary CPICH becomes better than an active primary CPICH (25.331)
event 1D: change of best cell (25.331)
event 1E: a Primary CPICH becomes better than an absolute threshold (25.331)
event 1F: a Primary CPICH becomes worse than an absolute threshold (25.331)
event 1J: a non-active E-DCH but active DCH primary CPICH becomes better than an active E-DCH primary CPICH (25.331)
EU: EPS Update (status) (24.301) E-UTRA: Evolved Universal Terrestrial Radio Access (36.300)
E-UTRA RRC_CONNECTED: LTE RRC state (see 36.331)
E-UTRA RRC_IDLE: LTE RRC state (see 36.331)
E-UTRAN: Evolved Universal Terrestrial Radio Access Network (36.300)
E-UTRAN carrier RSSI: E-UTRA carrier received signal strength indicator (36.300)

F.....(Back to the index)
FACCH: Fast Associated Control CHannel (44.060)
FACH: Forward Access Channel (25.321)
FDD: Frequency Division Duplex
F-DPCH: Fractional Dedicated Physical Channel (25.211)
FEC: Forward Error Correction (RFC4867)
FFS: For Further Study
FI: [RLC] Framing Info (36.322)
FS: further study
FQDN: fully qualified domain name (23.003)

G.....(Back to the index)
GAA: Generic Authentication Architecture (33.222)
GBR: Guaranteed Bit Rate (36.300)
GGSN: Gateway GPRS Support Node (23.002)
GC-SAP: General Control SAP (25.331)
Gm: Reference Point between a UE and a P-CSCF (23.228)
GMM: GPRS Mobility Management (24.007)
GMSC: The Gateway MSC (23.002)
Gn interface: Interface between GPRS Support Nodes (GSNs) within a PLMN (from 29.060)
Gp interface: Interface between GPRS Support Nodes (GSNs) in different PLMNs (from 29.060)
GPRS: General Packet Radio Service (23.060)
GRUU: Globally Routable User Agent URI (24.229)
GSM: Global System for Mobile communication(俗稱2G)
GTP: GPRS Tunneling Protocol (29.060)
GUMMEI: [LTE] Globally Unique MME Identity (36.300)
GUTI: [LTE] Globally Unique Temporary Identifier (36.301)

H.....(Back to the index)
HANDOVER FROM UTRAN COMMAND: RRC message. See 25.331
HANDOVER FROM UTRAN FAILURE: RRC message. See 25.331
HANDOVER TO UTRAN COMMAND: RRC message. See 25.331
HANDOVER TO UTRAN COMPLETE: RRC message. See 25.331
HARQ: Hybrid Automatic Repeat Request (25.308, 36.300)
HeNB: [LTE][FEMTO] Home E-UTRAN NodeB (36.300)
HLR: Home Location Register (23.002)
HNBID: [LTE] home eNB identifier (36.300)
HO: Handover (站在手機的角度,handover是由網路主導的,HO相對於selection/reselection.)
HPLMN: home PLMN (22.011)
HRPD: CDMA2000 High Rate Packet Data (3GPP2; seen in 36.331)
HS-DSCH: High Speed Downlink Shared Channel (25.321)
HSS: Home Subscriber Server (23.002)

I.....(Back to the index)
IBCF: Interconnection Border Control Function (24.229)
ICR: Incoming Communication Barring (24.611)
ICS: IMS Centralised Services(23.272/23.292)
I-CSCF: Interrogating CSCF (24.229/23.228)
ICSI: IMS communication service identifier (24.173)
idle mode: [GSM] In this mode, the mobile station is not allocated any dedicated channel; it listens to the CCCH and the BCCH. (GSM 04.08)
IE: Information Element
IFFT: Inverse Fast Fourier Transform
IM CN: IP Multimedia Core Network (23.228)
IMPU: IP Multimedia Public Identity
IMS: IP Multimedia Core Network Subsystem (22.173/24.173)
IMS AKA: IMS Authentication and Key Agreement (33.203)
IMS-ALG: IMS Application Level Gateway (24.229)
IMSI DETACH INDICATION: NAS L3 MM message. See 24.008
IMT: International Mobile Telecommunications
INITIAL DIRECT TRANSFER: RRC message. See 25.331
Inter-band carrier aggregation: Carrier aggregation of component carriers in different operating bands.(cited from 36.101)
Intra-band contiguous carrier aggregation: Contiguous carriers aggregated in the same operating band (cited from 36.101)
Intra-band non-contiguous carrier aggregation: Non-contiguous carriers aggregated in the same operating band. (cited from 36.101)
IP-CAN: IP-Connectivity Access Network (24.229)
IPsec: Internet Protocol Security (Many RFC/33.203)
IR/IREG: Inter-Working, Roaming Expert Group (GSMA)
ISIM: IM Services Identity Module (31.103)
ISR: Idle mode Signalling Reduction (24.301)

J.....(Back to the index)
J-TACS: Japanese Total Access Communication System

K.....(Back to the index)
KSI: Key Set Identifier (24.301)

L.....(Back to the index)
LCG: Logical Channel Group
LCS: Location Services (24.171)
LLC: Logical Link Control (24.007)
LOCATION UPDATING ACCEPT: NAS L3 MM message. See 24.008
LOCATION UPDATING REJECT: NAS L3 MM message. See 24.008
LOCATION UPDATING REQUEST: NAS L3 MM message. See 24.008
LR: Location Registration (23.122)
LSA: Localised Service Area (22.011)
LTE: Long Term Evolution (俗稱4G)

M.....(Back to the index)
Ma: Reference Point between an AS and an I-CSCF. (23.228)
MAC: Medium Access Control
MAC-I: Message Authentication Code for Integrity (33.401)
MBMS: Multimedia Broadcast Multicast Service (25.331/36.300)
MBR: Maximum Bit Rate (36.300)
MBSFN: MBMS over a Single Frequency Network (25.331)
MBSFN Synchronization Area: See 36.300 for detail definition.
MCC: Mobile Country Code (23.003)
MCE: Multi-cell/multicast Coordination Entity (36.300)
MEASUREMENT CONTROL: RRC message. See 25.331
MEASUREMENT CONTROL FAILURE: RRC message. See 25.331
MEASUREMENT REPORT: RRC message. See 25.331
MEC: Multi-cell/multicast Coordination Entity (36.300)
MGCF: Media Gateway Control Function (23.002)
MGW: Media GateWay (26.114)
MIB: [LTE][RRC] MasterInformationBlock (36.300)
MIMO: Multiple Input Multiple Output
MM: Mobility Management (24.007)
MME: [LTE] Mobility Management Entity (36.300)
MMEC: [LTE] MME code (36.300)
MMEGI: MME Group ID (23.003)
MNC: Mobile Network Code (23.003)
MO: Mobile Oriented (俗稱:打電話)
MO: [VoLTE] Management Object (24.305)
MRFC: Multimedia Resource Function Controller (23.002)
MRFP: Media Resource Function Processor (26.114)
MS: Mobile Station
MSIN: Mobile Subscriber Identification Number (23.003)
MT: Mobile Terminated (俗稱:接電話)
MTCH: Multicast Traffic Channel (LTE:36.300)
M-TMSI: M-Temporary Mobile Subscriber Identity. An M-TMSI identifies a user between the UE and the MME. The relationship between M-TMSI and IMSI is known only in the UE and in the MME. (23.401)
MTSI: Multimedia Telephony Service for IMS (26.114)
M1 Interface: MBMS GW – eNB (36.300)
M2 Interface: MCE – eNB (36.300)
M3 Interface: MCE – MME (36.300)

N.....(Back to the index)
NACC: Network Assisted Cell Change (LTE-GERAN)
NAF: Network Application Function (24.623)
NAS: non-access stratum
NASS: Network Attachment Subsystem (24.229)
NAT: Network Address Translation (22.228)
NCL: Neighbor Cell List (36.300/23.216)
NDI: [HARQ] New Data Indicator (36.321)
NGMN: Next Generation Mobile Networks (NGMN Alliance)
NMT: Nordic Mobile Telephone
NRI: Network Resource Identifier (23.236)

O.....(Back to the index)
OAM&P: Operations, Administration, Maintenance and Provisioning (32.101)
ODB: Operator Determined Barring (24.315)
OFDM: Orthogonal Frequency Division Multiplexing
OFDMA: Orthogonal Frequency Division Multiple Access
OSS-RC: [Ericsson] Operation Support System for Radio & Core

P.....(Back to the index)
P: [RLC] Polling bit (1=Status report is requested) (36.322)
PACCH: Packet Associated Control Channel (44.060)
PAD: Packet Assembly / Disassembly (23.060)
PAGING TYPE 1: RRC message. See 25.331
PAGING TYPE 2: RRC message. See 25.331
PBCH: [LTE][PHY] Physical broadcast channel (36.300)
Pbits: Ethernet Priority Bits
PBR: Prioritized Bit Rate
PCCH: Paging Control Channel (25.321)
P-CCPCH: Primary Common Control Physical Channel (25.211)
PCEF: Policy and Charging Enforcement Function Point (23.002)
PCell: [CA] Primary Cell (36.300)
PCFICH: [LTE][PHY] Physical control format indicator channel (36.300)
PCH: [transport channel] Paging Channel (25.321/36.300)
PCI: precoding control indication (25.214)
P-CPICH: Primary Common Pilot Channel (25.211)
PCRF: [LTE] Policy and Charging Rules Function (23.002/23.203)
P-CSCF: Proxy-CSCF(Call Session Control Function) (23.228)
PDB: Packet Delay Budget
PDCCH: [LTE][PHY] Physical downlink control channel (36.300)
PDCP: Packet Data Convergence Protocol
PDN: Packet Data Network
PDN GW: Packet Data Network Gateway
PDSCH: Physical downlink shared channel
PELR: Packet Error Loss Rate
PF: Paging Frame (36.304)
P-GW: [LTE] PDN Gateway (23.401)
PHICH: [LTE][PHY] Physical Hybrid ARQ Indicator Channel (36.300)
PHY: Physical layer (36.300)
PHYSICAL CHANNEL RECONFIGURATION: RRC message. See 25.331
PHYSICAL CHANNEL RECONFIGURATION COMPLETE: RRC message. See 25.331
PLMN: Public Land Mobile Network (22.011)
PMCH: [LTE][PHY] Physical multicast channel (36.300)
PNFE: RRC Paging and Notification control Function Entity (25.331)
PO: Paging Occasion (36.304)
pool-area: A pool area is an area within which a MS may roam without need to change the serving CN node. A pool area is served by one or more CN nodes in parallel. All the cells controlled by a RNC or BSC belong to the same one (or more) pool area(s). (23.236)
PRACH: [LTE][PHY] Physical random access channel (36.300)
PRD: Permanent Reference Document (GSMA)
PS: Packet Switched
PS call: Packet Switched call (俗稱手機上網)
PUCCH: [LTE][PHY] Physical uplink control channel (36.300)
PUSCH: [LTE][PHY] Physical uplink shared channel (36.300)

Q.....(Back to the index)
QCI: [LTE] QoS Class Identifier (23.401)
QPP: [LTE] Quadratic Permutation Polynomial (二次排列多項式)

R.....(Back to the index)
RACH: Random Access Channel (25.321)
RADIO BEARER RECONFIGURATION: RRC message. See 25.331
RADIO BEARER RECONFIGURATION COMPLETE: RRC message. See 25.331
RADIO BEARER RECONFIGURATION FAILURE: RRC message. See 25.331
RADIO BEARER RELEASE: RRC message. See 25.331
RADIO BEARER RELEASE COMPLETE: RRC message. See 25.331
RADIO BEARER RELEASE FAILURE: RRC message. See 25.331
RAN: Radio Access Network
RAND: Random challenge (33.102)
RA-RNTI: Random Access RNTI (36.300)
RAT-related TMSI: "When the UE is camping on an E-UTRAN cell, the RAT-related TMSI is the GUTI; when it is camping on a GERAN or UTRAN cell, the RAT-related TMSI is the P-TMSI." (definition copied from 24.301)
RB: Radio Bearer (25.331, 36.331)
RCS-e: Rich Communication Suite-enhanced (GSMA Project)
RES: response (used in 33.401)
RF: [RLC] Re-segmentation Flag (36.322)
RFE: RRC Routing Function Entity (25.331)
RFN: [GSM] Reduced TDMA frame number (45.002)
RLC: Radio Link Control
RN: Relay Node (36.300)
RNC: Radio Network Controller (23.002)(25.331)
RNL: Radio Network Layer (36.300)
ROHC: RObust Header Compression
RPOA: Recognised Private Operating Agency (23.002)
RR: Radio Resource (24.007, GSM04.08)
RRC: Radio Resource Control (25.331)
RRM: Radio Resource Management
RS: reference signal (36.211)
RSRP: Reference symbol received power (36.300)
RSRQ: Reference symbol received quality (36.300)
RSSI: received signal strength indicator
RTCP: real-time transport control protocol (RFC3550)
RTP: real-time transport protocol (RFC3550)
RV: Redundancy Version (36.321)

S.....(Back to the index)
SACCH: Slow Associated Control CHannel (24.008)
SAE: [LTE] System Architecture Evolution (36.331)
SAP: Service Access Points
SAPI 0: supports the transfer of signalling information including user-user information (24.008)
SAPI 3: supports the transfer of user short messages (24.008)
S-CCPCH: Secondary Common Control Physical Channel (25.331)(25.211)
SCells: [CA] Secondary Cells (36.300)
SC-FDMA: Single Carrier – Frequency Division Multiple Access (36.300)
SCH: [GSM][A/Gb mode] Synchronization CHannel. downlink only, used to broadcast synchronization and BSS identification information (45.002)
SCR: source controlled rate (RFC4867)
S-CSCF: Serving-CSCF (24.229)
SCTP: [LTE] Stream Control Transmission Protocol (36.300/36.413)
SDCCH: Stand-alone Dedicated Control CHannel (44.060)
SDES: Source Description RTCP Packet (RFC3550)
SDF: [LTE] Service Data Flow (36.300)
SDM: Spatial division multiplexing (空間分割多工)
SDoUE: Selective Disabling of 3GPP UE Capabilities (24.305)
SDP: Session Description Protocol (24.229)(RFC4566)
sec-agree: SIP Security Agreement (RFC3329/33.209/24.229)
SFN: System Frame Number (36.331)
SGi: [LTE] the reference point between the PDN-GW and a packet data network (23.002/29.061)
SGs: [LTE] Interface between MSC Server and MME (23.272)
SGSN: Serving GPRS Support Node. GERAN/UTRAN only. (23.002)
S-GW: [LTE] Serving Gateway (23.401/36.300)
SHCCH: Shared Channel Control Channel (25.321)
SIB: system information block (25.331)
SIB: [LTE][RRC] SystemInformationBlocks (36.300)
SID: Silence Indicator (the frames containing only CN parameters) (RFC4867)
Sidelink communication: see 36.331/5.10.1
SigComp: Signaling Compression (RFC3320)
Signalling Radio Bearers: Radio Bearers available for transmission of RRC messages (25.331)
SIP: Session Initiation Protocol (24.229)
SI-RNTI: [LTE] System Information RNTI (36.300)
SM: Session Management (24.007, 24.008)
SN: [RLC] Sequence Number (36.322)
SPS: Semi-Persistent Scheduling (36.331)(36.321)
SR: Scheduling Request (36.300)
SRB: signalling radio bearer (25.331, 36.331)
SRB0: [LTE] RRC messages using the CCCH logical channel (36.331)
SRS: sounding reference signal (36.211)
SRVCC: Single Radio Voice Call Continuity
SS: Supplementary Services (24.007)
SSAC: Service Specific Access Control (22.011)
SSRC: Synchronization source (RFC3550)
S-TMSI: [LTE] SAE TemporaryMobile Station Identifier (36.331)
stored information cell selection: See 36.300
STTD: Space Time Transmit Diversity (25.211)
SU: [LTE][RRC] Scheduling Unit (36.300)
SUFI: [RLC] SUper FIeld (25.322)
SU-MIMO: Single-User MIMO (36.300)
SYNC: MBMS synchronisation protocol (25.446)
S1 interface: interface between eNB and EPC (36.300)
S1-MME-interface: [LTE] Interface between MME and E-UTRAN (23.002)
S1-U-interface: [LTE] Interface between S-GW and E-UTRAN (23.002)
S101 (reference point): It enables interactions between EPS and HRPD access to allow for pre-registration and handover signalling with the target system (23.402)
S5 interface: Interface between S-GW and PDN-GW (23.002)
S8 interface: Interface between S-GW and PDN-GW. S8 is the inter PLMN variant of S5. (23.002)
S11 interface: [LTE] This interface is used to support mobility and bearer management between the MME and S-GW.(23.002/29.274)

T.....(Back to the index)
TA: [LTE] Tracking Area (36.300)
T-ADS: Terminating Access Domain Selection (23.221)
TAS: Telephony Application Server (IR.92)
TAC: [LTE] Tracking Area Code (36.300)
TACS: Total Access Communication System
TAG: Timing Advance Group (36.300)
TAI: [LTE] Tracking Area identity (36.300)
TB: transport block
TBF: temporary block flow (24.008)
TCH/F: TCH / full-rate (44.060)
TCH/H: TCH / half-rate (44.060)
TDD: Time Division Duplex
TFCI: Transport Format Combination Indicator (25.211)
TFO: Tandem-Free Operation
TFT: Traffic Flow Template (36.300)
TIA: Telecommunications Industry Association
Timing Advance: signal sent by the BTS to the MS which the MS uses to advance its timings of transmissions to the BTS so as to compensate for propagation delay. (45.010)
TIN: Temporary Identity used in Next update (24.301)
TMD: [RLC] Transparent Mode Data (25.322)
TME: RRC Transfer Mode Entity (25.331)
TMGI: Temporary Mobile Group Identity (24.008)(36.331)
TNL: Transport Network Layer (36.300)
TPC: transmit power-control (25.211)
TS: Technical Specification
T300: [LTE RRC] Broadcast in SIB2. Start when transmission of RRCConnectionRequest; stop when reception of RRCConnectionSetup or RRCConnectionReject message, cell re-selection and upon abortion of connection establishment by upper layers (36.331)
T302: [LTE RRC] Start when reception of RRCConnectionReject while performing RRC connection establishment. Set as waitTime provided in RRCConnectionReject. (36.331)

U.....(Back to the index)
UAC: User Agent Client (SIP related specs)
UAS: User Agent Server (SIP related specs)
UE: User Equipment (俗稱:手機)
UED: Unequal Bit-Error Detection (RFC4867)
UEP: Unequal Bit-Error Protection (RFC4867)
UICC: Universal Integrated Circuit Card (俗稱SIM卡)
UL: uplink
UL PCC: [CA] Uplink Primary Component Carrier (36.300)
UL SCC: [CA] Uplink Secondary Component Carrier (36.300)
UL-SCH: Uplink Shared Channel (36.331)
UMTS: Universal Mobile Telecommunications System
URA: UTRAN Registration Area (25.331)
urn:urn-7:3gpp-service.ims.icsi.mmtel: ICSI to indicate the IMS Multimedia Telephony service (24.173)
Ut: Reference Point between UE and an Application Server (23.228)
UTRAN: Universal Terrestrial Radio Access Network (25.3xx)
Uu-interface: Interface between User Equipment and Radio Network System (23.002)
U2G: UMTS to GSM (俗稱:3G到2G)

V.....(Back to the index)
VAD: voice activity detection (RFC4867)
VBS: Voice Broadcast Service (24.008)
VGCS: Voice Group Call Service (24.008)
VLR: Visited Location Register (23.221)
VPLMN: visited PLMN (22.011)

W.....(Back to the index)
WCDMA: Wideband Code Division Multiple Access (俗稱3G)
W2G: WCDMA to GSM

X.....(Back to the index)
XCAP: XML Configuration Access Protocol (24.623)
XID: eXchange IDentifier
XMAC: expected message authentication code (33.401)
XRES: Expected Response (33.401)
X2 interface: interface between eNBs (36.300)
X2-AP: X2 Application Protocol (36.300)
X2-CP: X2 control plane interface (36.300)

Z.....(Back to the index)
ZC-ZCZ: Zadoff-Chu sequences with zero correlation zone (36.300)

Numbers.....(Back to the index)
1xRTT: CDMA2000 1x Radio Transmission Technology (36.331/3GPP2)
3GPP: 3rd Generation Partnership Project


*注意: 名詞後方加註俗稱是為了方便一般使用者查詢對照專有名詞,往往俗稱未必與spec定義100%完全符合。請不要過度解讀以上所加註俗稱以免造成錯誤認知


台灣網路相關速查表:

Taiwan 4G LTE License
中華電信 Chunghwa Telecom CHT 35MHz B2 (Band8:900 MHz), C2 (Band3:1800 MHz) and C5 (Band3:1800 MHz)
台灣大哥大 Taiwan Mobile Telecom TWM 20MHz A4 (Band28:700 MHz) and C1 (Band3:1800 MHz)
遠傳電信 Far Eastone Telecom FET 30MHz A2 (Band28:700 MHz), C3 (Band3:1800 MHz) and C4 (Band3:1800 MHz)
亞太電信 Asia Pacific Telecom APTG 10MHz A1 (Band28:700 MHz)


Taiwan 3G Operator Network Mode of Operation Table
MCC MNCOperator NickNameNMOUMTS BandLTE Band
466 92中華CHTNMO IIBand IBand 3, 8
466 01遠傳FET NMO II Band IBand 3, 28
466 97台灣大哥大TWM NMO II Band IBand 3, 28
466 89威寶/台灣之星VIBO/TST NMO II Band IBand 8