-
- A
- ACCH - Associated
Control Channel
- ACELP
- Algebric Code Excitation Linear Predictive
- ADPCM - Adaptive
Differential Pulse Code Modulation
- AGCH - Access
Grant Channel
- AMPS - American
Mobile Phone System
- B
- BCC - Base Colour
Code
- BCCH - Broadcast
Control Channel
There are two main functions that the BCCH is
used for, frequency control and Frame
syncronisation. They exist only in the downlink.
- BER - Bit Error
Rate
- BS - Base Station
- BSC - Base Station
Controller
- BSIC - Base
Station Identity Code
- BSS - Base Station
System
- BTS - Base
Tranceiver System
- C
- CC - Country Code,
- CCCH - Common
Control CHannel
This is used by the network in the downlink
direction to infom a MS of an incoming call
(PCH).
- CCITT -
Consultative Committee for Telegraphy and
Telephony
- CDMA - Code
Division Multiple Access
A wide-band spread-spectrum network technology.
- CDR - Call Detail
Record
- CI - Cell Identity
- CLI
- Calling Line Identity
A system used to present information to the
person being called about the person calling
(usually presents the incoming telephone number
or an indication that the number has been witheld
or is unavailable)
- CLIP
- Calling Line Identification Presentation
- CLIR
- Calling Line Identification Restriction
- COLP
- Connected Line identification Presentation
- COLR
- Connected Line identification Restriction
- CRC - Cyclic
Redundancy Check
- D
- DCS - Digital
Communication System
Formerly used to describe GSM at 1900Mhz (in the
US). Now usually known as GSM1900.
- DLCI - Data Link
Connnection Identifier
- DTMF
- Dual Tone Multi Frequency
- DTX -
Discontinuous Transmission
- E
- EFR
- Enchanced Full Rate
- EIR - Equipment
Identification Register
- ETACS - Extended
Total Access Communication System
- ETSI - European
Telecomunications Standards Institute
- F
- FAC - Final
Assembly Code (see IMEI)
- FACCH - Fast
Associated Control Channel
- FCB - Frequency
Correction Burst
- FCCH - Frequency
Correction Channel
- FDMA - Frequency
Division Multiple Access
- FEC - Forward
Error Correction
- FER - Frame
Erasure Rate
- FH - Frequency
Hopping
- G
- GCI - Global Cell
Identity
- GMSC - Gateway
Mobile Switching Centre
- GMSK - Gaussian
Minimum Shift Keying
- GSM
- Group Speciale Mobile / Global System for
Mobile communications
- H
- HRC
- Half Rate Codec
- HDLC - High level
Data Link Control
- HLR - Home
Location Register
- HO - Handover
- I
- IMEI
- International Mobile Equipment Identity
A unique identifier assigned to all GSM devices.
The IMEI is like a serial number and is used by
the network to identify the handset (in
conjunction with the SIM ID)
- IMSI -
International Mobile Station Identity
- ISDN - Integrated
Services Digital Network
A data network usually provided by public
carriers (BT, AT&T etc) providing digital
communication at 56k (US & Japan) or 64k
(rest of world)
- ISO -
International Standards Organisation
- J
- K
- L
- L2ML - Layer 2
Management Link
- LAC - Location
Area Code
- LAI - Location
Area Identifier
- LAPB - Link Access
Protocol Balanced
- LAPD - Link Access
Protocol D Channel
- LPC - Linear
Predictive Coding
- LPC-RPE
- Linear Predictive Coding with Regular Pulse
Excitation
- M
- MCC - Mobile
Country Code
- MHS - Message
Handling Service
- MNC - Mobile
Network Code
- MO - Mobile
Originated
Used to describe the device that originates the
sending of a message (in SMS terms). If a handset
does not support MO, then it can not send
messages.
- MPE - Multiple
Pulse Excitation
- MS - Mobile
Station
- MSC - Mobile
Switching Centre
- MSIN - Mobile
Station Identity Number
- MSISDN - Mobile
Station ISDN/PSTN Number
- MSRN - Mobile
Station Roaming Number
- MT - Mobile
Terminated
Used to describe a device that can receive an SMS
message. All phones that are capabable of
receiving SMS are deemed MT capable.
- MTP - Message
Transfer Part
- N
- NBS - Narrow Band
Sockets
Nokia and Intel's protocol for providing
additional network services over the GSM Short
Message Service. NBS provides TCP/IP-like
connectivity to handsets.
- NCC - Network
Colour Code
- NDC - National
Designation Code
- NT - Network
Termination
- O
- OTA
- Over The Air
- P
- PCH - Paging
CHannel
Used by the network to inform the MS of an
incoming call (downlink).
- PCM - Pulse Code
Modulation
- PCN - Personal
Communications Network/Public Communications
Network
A term historically used to mean GSM at 1800Mhz.
Now known as GSM1800
- PDU - Protocol
Data Unit
Encoding method for data being transferred
to/from a handset over the network.
- PIN - Personal
Identification Number
A number used as a "password" to
prevent access to a device.
- PLMN - Public Land
Mobile Network
- Q
- R
- RACH - Random
Access CHannel
The mobile uses this CCCH to request a SDCCH.
- RLP - Radio Line
Protocol
Non-transparent data uses a special ensure robust
GSM-specific error correction technique called
RLP for transmission. Both MTN and Vodacom GSM
networks support both techniques.
- RXLEV - Receive
LEVel
- RXQUAL - Receive
Quality
- S
- SACCH - Slow
Associated Control CHannel
- SCH -
Synchronisation CHannel
- SDCCH -
Stand-alone Dedicated Control CHannel
- SDN
- Service Dialing Numbers
- SIM
- Subscriber Identity Module
- SMS - Short
Message Service
- SN - Serial Number
- SNR - Signal to
Noise Ratio
- T
- TAC - Type
Approval Code
- TACS - Total
Access Communication System
- TCH - Traffic
CHannel
A Traffic channel is used by the network to
transmit coded voice packets.
- TDT - Transparent
Data Transmission
A method of transmission in which the
transmission medium will not recognize control
characters or initiate any control function.
Transparent-based phones do not utilise any error
correction. Thus the data sent and received MIGHT
be corrupted unless a greater than two-bar
cellphone signal is used (South African
conditions). Non-transparent data uses a special
ensure robust GSM-specific error correction
technique called RLP for transmission.
- TDMA - Time
Division Multiple Access
- TMSI - Temporary
Mobile Subscriber Identity
- TS - Time Slot
- U
- V
- VLR - Visitor
Location Register
- W
- WAP - Wireless
Application Protocol
- WML
- Wireless Markup Language
- X
- Y
- Z
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