A5/1/2/3/8X - Encryption algorithms for GSM networks
AAL - ATM Adaptation Layer
A-bis = Interface between the BSC and BTS in a GSM network
AB - Access Burst
used for random access and characterised by a longer guard period to allow for burst transmission from a MS that does not know the correct timing advance when first contacting a network
ABR - Available Bit Rate
AC - Alternating Current ( the standard electricity type )
ACCH - Analog Control Channel
ACTE - Approvals Committee for Terminal Equipment
ACTS - Advanced Communications Technologies and Services.
a European technology initiative
ACU - Antenna Combining Unit
AC Charger :
an accessory device that allows you to power and/or charge your phone from a wall outlet
Activation the process:
Activation the process by which a cell phone account is created, your phone number assigned, and your phone programmed so that you can make and receive calls.
Active Flip/Keypad :
Active Flip/Keypad Cover a feature that will answer a call by opening the keypad cover and end a call by closing the keypad cover.
ADC - Analog to Digital Convertor
ADPCM - Adaptive Differential Pulse Code Modulation
( a form of voice compression that typically uses 32kbit/s)
Advice of charge:
A service which provides the user with information on the cost of calls from a mobile phone
AFC - Automatic Frequency Control
AGC - Automatic Gain Control
AGCH - Access Grant Channel; downlink only, BTS allocates a TCH or SDCCH to the MS, allowing it access to the network
A-interface :
Interface between the MSC and BSS in a GSM network
Airtime:
The amount of time a subscriber spends using his/her mobile phone
Air interface:
In a mobile phone network, the radio transmission path between the base station and the mobile terminal
AM - Amplitude Modulation
AMPS - Advanced Mobile Phone Service
Advanced Mobile Phone System (AMPS) is the analog mobile phone system standard developed by Bell Labs, and officially introduced in the Americas in 1983[1][2] It was the primary analog mobile phone system in North America (and other locales) through the 1980s and into the 2000s, and is still widely available today, although use has dropped considerably with the introduction of various digital standards.
Total Access Communication System (TACS) and ETACS are mostly-obsolete variants of AMPS which were used in some European countries (including the UK). TACS was also used in Japan under the name Japanese Total Access Communication (JTAC).[3][4]
AMR - Adaptive Multi-Rate codec.
Developed in 1999 for use in GSM networks, the AMRhas been adopted by 3GPP for 3G
ANSI - American National Standards Institute.
An non-profit making US organisation which does not carry out standardisation work but reviews the work of standards bodies and assigns them category codes and numbers
ANSI-136
See D-AMPS
Analogue:
The representation of information by a continuously variable physical quantity such as voltage
Antenna:
a part of a cell phone that receives and transmits cellular radio-frequency transmissions
AoC
Advice of Charge
API - Application Program Interface
ARIB - Association of Radio Industries and Businesses.
Association of Radio Industries and Businesses. An organisation established by Japan’s Ministry of Posts and Communications to act as the standardisation authority for radio communication and broadcasting
ARM
one of the three types of processors that can be found in Pocket PCS. Created by ARM Ltd., the ARM processor has a unique architecture compared to its two competitors (MIPS and SH3), and therefore can only run programs created specifically for it.
ARPU
Average Revenue Per User
ASCII
American Standard Code for Information Interchange
ASIC - Application Specific Integrated Circuit
Electronic chips designed for some concrete purposes (for example, in phone it controlls communication between MCU and DSP) They're designed and produced by the companies which use them.
ASP - Application Service Provider
Asymmetric Transmission:
Data transmissions where the traffic from the network to the subscriber is at a higher rate than the traffic from the subscriber to the network
A-TDMA - Advanced Time Division Multiple Access
ATM
Asynchronous Transfer Mode; a multiplexed information transfer and switching method in which the data is organised into fixed length 53-octet cells and transmitted according to each application’s instantaneous need
AVCH - Analog Voice Channel
AAL - ATM Adaptation Layer
A-bis = Interface between the BSC and BTS in a GSM network
AB - Access Burst
used for random access and characterised by a longer guard period to allow for burst transmission from a MS that does not know the correct timing advance when first contacting a network
ABR - Available Bit Rate
AC - Alternating Current ( the standard electricity type )
ACCH - Analog Control Channel
ACTE - Approvals Committee for Terminal Equipment
ACTS - Advanced Communications Technologies and Services.
a European technology initiative
ACU - Antenna Combining Unit
AC Charger :
an accessory device that allows you to power and/or charge your phone from a wall outlet
Activation the process:
Activation the process by which a cell phone account is created, your phone number assigned, and your phone programmed so that you can make and receive calls.
Active Flip/Keypad :
Active Flip/Keypad Cover a feature that will answer a call by opening the keypad cover and end a call by closing the keypad cover.
ADC - Analog to Digital Convertor
ADPCM - Adaptive Differential Pulse Code Modulation
( a form of voice compression that typically uses 32kbit/s)
Advice of charge:
A service which provides the user with information on the cost of calls from a mobile phone
AFC - Automatic Frequency Control
AGC - Automatic Gain Control
AGCH - Access Grant Channel; downlink only, BTS allocates a TCH or SDCCH to the MS, allowing it access to the network
A-interface :
Interface between the MSC and BSS in a GSM network
Airtime:
The amount of time a subscriber spends using his/her mobile phone
Air interface:
In a mobile phone network, the radio transmission path between the base station and the mobile terminal
AM - Amplitude Modulation
AMPS - Advanced Mobile Phone Service
Advanced Mobile Phone System (AMPS) is the analog mobile phone system standard developed by Bell Labs, and officially introduced in the Americas in 1983[1][2] It was the primary analog mobile phone system in North America (and other locales) through the 1980s and into the 2000s, and is still widely available today, although use has dropped considerably with the introduction of various digital standards.
Total Access Communication System (TACS) and ETACS are mostly-obsolete variants of AMPS which were used in some European countries (including the UK). TACS was also used in Japan under the name Japanese Total Access Communication (JTAC).[3][4]
AMR - Adaptive Multi-Rate codec.
Developed in 1999 for use in GSM networks, the AMRhas been adopted by 3GPP for 3G
ANSI - American National Standards Institute.
An non-profit making US organisation which does not carry out standardisation work but reviews the work of standards bodies and assigns them category codes and numbers
ANSI-136
See D-AMPS
Analogue:
The representation of information by a continuously variable physical quantity such as voltage
Antenna:
a part of a cell phone that receives and transmits cellular radio-frequency transmissions
AoC
Advice of Charge
API - Application Program Interface
ARIB - Association of Radio Industries and Businesses.
Association of Radio Industries and Businesses. An organisation established by Japan’s Ministry of Posts and Communications to act as the standardisation authority for radio communication and broadcasting
ARM
one of the three types of processors that can be found in Pocket PCS. Created by ARM Ltd., the ARM processor has a unique architecture compared to its two competitors (MIPS and SH3), and therefore can only run programs created specifically for it.
ARPU
Average Revenue Per User
ASCII
American Standard Code for Information Interchange
ASIC - Application Specific Integrated Circuit
Electronic chips designed for some concrete purposes (for example, in phone it controlls communication between MCU and DSP) They're designed and produced by the companies which use them.
ASP - Application Service Provider
Asymmetric Transmission:
Data transmissions where the traffic from the network to the subscriber is at a higher rate than the traffic from the subscriber to the network
A-TDMA - Advanced Time Division Multiple Access
ATM
Asynchronous Transfer Mode; a multiplexed information transfer and switching method in which the data is organised into fixed length 53-octet cells and transmitted according to each application’s instantaneous need
AVCH - Analog Voice Channel