User's Manual

LPP0108IG001 73 Version - Preliminary – 06/20/08
HLR
Home Location Register
Stores the identity and user data for all subscribers belonging to the area of
the related MSC.
IMEI
International Mobile
Equipment Identity
A unique number for each GSM Terminal tracked by the GSM operators in
their Equipment Identity Register (EIR) database.
IMSI
International Mobile
Subscriber Identification
A unique number identifying the subscriber stored in the SIM card. Number
is used in conjunction with the network for call routing.
Ki
A secret code used in authentication and encryption by the terminal.
LPP
Low Power Platform
MCP
MO
Mobile Originated
Any GSM/GPRS service originated at the mobile terminal.
MT
Mobile Terminated
Any GSM/GPRS service originated from or routed through the network and
sent to the mobile terminal.
MSC
Mobile Switching Center
The central switch of the GSM network. Performs call routing, collects call
detail records for billing, and supervises system operations.
Non-Transparent Mode
Delivers a constantly low error rate but with a non-guaranteed throughput or
delay. The Non-Transparent service provides a performance that is closest
to using a modem over a fixed PSTN line.
NRTL
Nationally Recognized Test
Laboratory
OSHA-approved Nationally Recognized Testing Laboratory
OEM
Original Equipment Manufacturer.
PA
Power Amplifier.
Packet
A collection of data transmitted over a digital network in a burst.
PCS
Personal Communication Services.
PDA
Personal Digital Assistant.
PDU
Packet Data Unit.
PPP
Point-To-Point Protocol.
RTC
Real Time Clock
SIM
Subscriber Identity Module.
SMS
Short Message Service.
SMSC
Short Message Service Center.
SUPL
Secure User Plane Location
TCP
Transfer Control Protocol
UDP
User Datagram Protocol.