AAL ATM Adaptation LayerAGCH Access Grant CHannelANSI American
National Standards InstituteAP Application ProcessorAPN Access
Point NameATM Asynchronous Transfer ModeAUC AUthentication
CenterBCCH Broadcast Control CHannelBELLCORE BELL COmmunications
REsearchBGP Border Gateway ProtocolBGw Billing GatewayBSC Base
Station ControllerBSS Base Station SystemBSSGP Base Station System
GPRS ProtocolBTS Base Transceiver StationBYB501, BYB202 Building
Practice (Ericsson specific)C1/C2, C31, C32 Cell selection and
reselection parametersCCCH Common Control CHannelCCU Channel
Control UnitCDR Call Data RecordCGF Charging Gateway
FunctionalityCGSN Co-located GSNCHAP Challenge Handshake
Authentication ProtocolCS Circuit SwitchedCS-1, CS-2 Coding Scheme
1 and 2DCE Data Communication EquipmentDCS Digital Communication
SystemDHCP Dynamic Host Configuration ProtocolDL Digital LinkDLCI
Data Link Connection IdentificationDNS Domain Name ServerDP Digital
Processor or Device ProcessorDRX Discontinuous ReceptionDSP Digital
Signal ProcessorsEDGE Enhanced Data rates for GSM EvolutionEGT
Ericsson GPRS TerminalEIR Equipment Identity RegisterETC Exchange
Terminal CircuitETSI European Telecommunication Standards
InstituteFR Frame RelayFTP File Transfer ProtocolGGSN Gateway GPRS
Support NodeGMSC Gateway Mobile services Switching CenterGPB
General Processing BoardGPRS General Packet Radio ServiceGS Group
Switch
GPRS System Survey
84 EN/LZT 123 5374 R1B
GSM Global System for Mobile CommunicationGSN GPRS Support
NodeGTP GPRS Tunneling ProtocolHLR Home Location RegisterHSCSD
High-Speed Circuit-Switched DataIANA Internet Assigned Numbers
AuthorityIAS Internet Access ServerIBAE Interface Board ATM
ElectricalIBAM Interface Board ATM Multi-modeIBAS Interface Board
ATM Single-modeIBE Interface Board with E1IBEN Interface Board
EtherNetIBT Interface Board with T1IH Internet service HostIMEI
International Mobile station Equipment IdentityIMSI International
Mobile Subscriber IdentityIP Internet ProtocolIPSec IP Secure
ProtocolISDN Integrated Services Digital NetworkISP Internet
Service ProviderITU-T International Telecommunications
Union-TelecommunicationsL1, L2 Layer 1, Layer 2LA Location
AreaLAN Local Area NetworkLAN Local Area NetworkLLC Logical Link
ControlMAC Medium Access ControlMAS Mobile network Access
SubsystemMM Mobility ManagementMPDCH Master Packet Data ChannelMPS
Mobile Point-to-Point control SubsystemMS Mobile StationMSC Mobile
Switching CenterMSS Mobile Short message SubsystemMT Mobile
TerminalMTP Message Transfer PartMTS Mobile Transport protocol
SubsystemMVS Mobile Visitor register SubsystemNAT Network Address
TranslatorNCS Network element Control and distribution SubsystemNS
Network ServiceNSAPI Network layer Service Access Point
IdentifierNTP Network Time ProtocolOSPF Open Shortest Path FirstOSS
Operation and Support SystemPACCH Packet Associated Control
CHannelPAGCH Packet Access Grant CHannelPAP Password Authentication
Protocol
7 Appendix A
EN/LZT 123 5374 R1B 85
PBCCH Packet Broadcast Control CHannelPCCCH Packet Common
Control CHannelPCH Packet CHannelPCM Pulse Code ModulationPCS
Personal Communication SystemPCU Packet Control UnitPDCH Packet
Data ChannelPDP Packet Data ProtocolPDTCH Packet Data Traffic
ChannelPDU Packet Data UnitPEB Power and Ethernet BoardPLMN Public
Land Mobile NetworkPPB Packet Protocol BoardPPCH Packet Paging
ChannelPPP Point-to-Point ProtocolPRACH Packet Random Access
CHannelPS Packet SwitchedPSS Packet Switching SystemPSTN Public
Switched Telephone NetworkPTCCH Packet Traffic Control ChannelPTP
Point-To-PointPVC Permanent Virtual CircuitQoS Quality of ServiceRA
Routing AreaRACH Random Access ChannelRADIUS Remote Access Dial-In
User ServiceRBS Radio Base StationRF Radio FrequencyRIP Routing
Information ProtocolRLC Radio Link ControlRP Regional ProcessorRPP
type of RP the PCU is built onSA (MSC/VLR) Service AreaSDH
Synchronous Digital HierarchySGSN Serving GPRS Support NodeSM Short
MessageSMS Short Message ServiceSNDCP SubNetwork Dependent
Convergence ProtocolSONET Synchronous Optical NetworkSPE Signal
Processing ExtensionSPU Signal Processing UnitSRS SubRate SwitchSS7
common channel Signaling Subsystem No 7STM Synchronous Transport
ModuleSTP Signaling Transfer PointSTS Statistic and Traffic
measurement SubsystemSW Soft WareTBF Temporary Block FlowTCAP
Transaction Capabilities Application Part
GPRS System Survey
86 EN/LZT 123 5374 R1B
TCH Traffic CHannelTCP Transmission Control ProtocolTE Terminal
EquipmentTFI Temporary Flow IdentityTLLI Temporary Location Link
IdentityTRAU TRanscoder Adapter UnitTRC TRanscoder ControllerTRX
TransceiverUDP User Datagram ProtocolUMTS Universal Mobile
Telecommunications SystemUSF Uplink State FlagVLR Visitor Location
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